Low Level Gamma Radiation...

[Mike Monett]

Mike Monett <spamme@not.com> wrote:

dplatt@coop.radagast.org (Dave Platt) wrote:

Also on eBay, you can find \"quantum energy\" or \"scalar energy\" or
\"negative ion\" pendants made out of a black volcanic rock. They\'re
often touted as a way of protecting oneself from the (supposed)
harmful effects of electromagnetic radiation.

The rock from which they are made appears to be rich in thorium and
its decay products (perhaps something like monazite?).

I measured one on my home-made gamma spectrometry system and got
a very recognizable thorium-decay signature (the isotope markers
are from a best-efforts calibration).

https://www.radagast.org/~dplatt/gamma/quantum-pendant.png

Thanks for the information. I will try to find the black volcanic rock
products. I recall an article describing these that got them kicked off
Amazon (I think).

Thanks,

Mike

Ebay was a bust. Quantum Energy turned out to be a fishing reel. Scalar
energy was some patterns on a piece of paper.

However, Amazon turned up lots of volcanic rock emi protectors. I got one
titled

\"Volcanic Stone Pendant,Energy Necklace Fashionable Health Care for Women
for Daily Wear Quantum Science Scalar Energy Necklace Round Pendant for Men
Woman Tourmaline Volcanic Stone Jewelry\",

$15.86 FREE delivery August 22 - September 16

https://www.amazon.ca/gp/product/B09V9Y7359/

This one sounds like it will do the job. Thanks.

Mike


--
MRM

 

[a a]

On Saturday, 16 July 2022 at 21:25:19 UTC+2, Mike Monett wrote:

Mike Monett <spa...@not.com> wrote:
dpl...@coop.radagast.org (Dave Platt) wrote:

Also on eBay, you can find \"quantum energy\" or \"scalar energy\" or
\"negative ion\" pendants made out of a black volcanic rock. They\'re
often touted as a way of protecting oneself from the (supposed)
harmful effects of electromagnetic radiation.
The rock from which they are made appears to be rich in thorium and
its decay products (perhaps something like monazite?).

I measured one on my home-made gamma spectrometry system and got
a very recognizable thorium-decay signature (the isotope markers
are from a best-efforts calibration).

https://www.radagast.org/~dplatt/gamma/quantum-pendant.png
Thanks for the information. I will try to find the black volcanic rock
products. I recall an article describing these that got them kicked off
Amazon (I think).
Thanks,

Mike

Ebay was a bust. Quantum Energy turned out to be a fishing reel. Scalar
energy was some patterns on a piece of paper.

However, Amazon turned up lots of volcanic rock emi protectors. I got one
titled

\"Volcanic Stone Pendant,Energy Necklace Fashionable Health Care for Women
for Daily Wear Quantum Science Scalar Energy Necklace Round Pendant for Men
Woman Tourmaline Volcanic Stone Jewelry\",

$15.86 FREE delivery August 22 - September 16

https://www.amazon.ca/gp/product/B09V9Y7359/

This one sounds like it will do the job. Thanks.

Mike


--
MRM

Gamma Radiation is never Low Level
beware of cancer

 

[server]

On Sat, 16 Jul 2022 18:48:41 -0000 (UTC), Mike Monett <spamme@not.com>
wrote:

dplatt@coop.radagast.org (Dave Platt) wrote:

In article <XnsAED63FC6A8982idtokenpost@88.198.57.247>,
Mike Monett <spamme@not.com> wrote:
Getting samples of thorium has turned out to be impossible, except for
traces in welding rods. However, radium is readily available in the form
of watch hands painted with radium. These are for sale extremely cheap
on Ebay.

Also on eBay, you can find \"quantum energy\" or \"scalar energy\" or
\"negative ion\" pendants made out of a black volcanic rock. They\'re
often touted as a way of protecting oneself from the (supposed)
harmful effects of electromagnetic radiation.

They do generate \"negative ions\", in the form of beta-decay
electrons... these are not your gentle after-the-rainstorm negative
ions by any means!

By one report the radiation level is high enough that wearing one next
to the skin for a year can exceed safe exposure levels and might even
cause a mild radiation burn. I understand that Singapore has banned
the import of such products for this reason.

The rock from which they are made appears to be rich in thorium and
its decay products (perhaps something like monazite?).

I measured one on my home-made gamma spectrometry system and got
a very recognizable thorium-decay signature (the isotope markers
are from a best-efforts calibration).

https://www.radagast.org/~dplatt/gamma/quantum-pendant.png

Another useful calibration source (for higher-energy gammas from
potassium-40) is a sack of potassium chloride water-softener recharge
crystals from your local big-box home/hardware store (or, on a smaller
scale, a box of Morton \"Lite Salt\" which is about half potassium
chloride).

And, one can still find orange Fiestaware and green uranium glass at
the occasional estate or garage sale or antique store.

Thanks for the information. I will try to find the black volcanic rock
products. I recall an article describing these that got them kicked off
Amazon (I think).

Your gamma spectrometry system sounds very interesting. Can you supply more
information, such as what kind of scintillator crystal do you use, how big
is it, and do you use a PMT or diode for the detector, what software do you
use to generate the spectrum, how do you drive it, and any other details
that might be interesting.

I use pure potassium chloride (KCl) in the form of Windsor Salt Free
seasoning, but my Radiacode is not sensitive enough to detect the decay
products. I left it sitting on three containers for several days but had no
luck. I need a more sensitive detector, which is why yours is so
interesting.

On a related topic, I have been trying to find out why the background gamma
spectrum has a sharp rise at low energies, and where does it come from? Do
you have any ideas?

Thanks,

Mike

The classic radiation test source was a thoriated Coleman lantern
mantle.

 

[Dave Platt]

In article <7cc8f810-1325-4542-bda7-63c76d4195a0n@googlegroups.com>,
John Miles, KE5FX <jmiles@gmail.com> wrote:

On Saturday, July 16, 2022 at 7:16:38 AM UTC-7, Dave Platt wrote:
I measured one on my home-made gamma spectrometry system and got
a very recognizable thorium-decay signature (the isotope markers
are from a best-efforts calibration).

https://www.radagast.org/~dplatt/gamma/quantum-pendant.pn

Resolution of that setup looks really good -- is it written up anywhere?

I don\'t think I\'ve written up anything in detail - it\'s been a few
years since I played with it much.

I have a couple of probes, both built with surplus commercial PMTs,
one with a NaI(Tl) crystal and another with a BGO crystal.

The signal processing uses a charge-sensitive amplifier with some
pulse shaping built in (I like the CSA architecture because it\'s not
particularly sensitive to the cable length and capacitance). The
original design was done by Richard Hester; I did some tweaks for my
version and did a custom board layout. The files are in the
https://www.radagast.org/~dplatt/gamma/ directory.

The biggest disadvantage to this circuit is that if I forget, and
connect or disconnect the probe cable with the power on (or without
letting it discharge to zero) the spike usually blows out the
front-end JFET, and I have to cuss and pull it out of the
air-wire socket and replace it

The high-voltage supply is based on a flyback with diode voltage
multiplier, based on a circuit I found some years ago intended for
use with GM tubes.

The output of the CSA goes into a moderately-priced USB sound card
line input.

I wrote the pulse detection and filtering code myself. The first
version was strictly command-line (record audio to a .WAV file, then
post-process to detect and bin the pulses and generate data files which
could be fed to gnuplot). I then wrote a Linux GUI based on the FLTK
toolkit which can read/process/display in real time.

The trickiest part was handling high pulse rates, where one pulse
starts while the CSA is still recovering from the previous one.
At some point I may sit down and try writing some DSP code to
de-convolve the CSA\'s pulse shaping and turn the signal back
into narrow impulses.

 

[Dave Platt]

In article <XnsAED696ABEA7D1idtokenpost@88.198.57.247>,
Mike Monett <spamme@not.com> wrote:

On a related topic, I have been trying to find out why the background gamma
spectrum has a sharp rise at low energies, and where does it come from? Do
you have any ideas?

As I understand it, you\'re seeing is largely Compton radiation and
X-ray fluorescence. When naturally occurring gammas (from K40 decay,
transuranincs, and cosmic rays) smack into atmosphere or into solid
matter, the energy of the gamma is scattered... it\'s dissipated a bit
at a time as the gamma photon interacts with electrons or the nucleus
of the impacted materials.

If a gamma scatters off of an electron, some of the energy is
transferred to the electron. If the electron is bumped up to a
higher-energy orbital and then decays back to its ground state, the
decay can cause the emission of an X-ray photon - fluorescence. This
necessarily has a lower energy than the gamma, and its energy will
depend on just what element was involved in the scattering. The
original scattered gamma will have less energy than it did before, of
course.

So, the rise you see in the spectrum is probably the sum of a whole
bunch of Compton scattering events which involved gammas that were
originally of higher energy.

From what I\'ve read, skyglow (gammas and X-rays originating from
cosmic-ray impacts on the atmosphere) is a big part of this.
NORM is another big part.

A few years ago I collected a box of monazite sand from a local
beach. It definitely shows a thorium signature, but the peaks are
nowhere near as sharp as the ones in the \"quantum pendant\" data.
I believe this is because the thorium is diffused throughout a
much larger amount of base material (I have to use a couple of
pounds of it to get a good reading) and most of the decay gammas
end up Compton-scattering at least once as they work their way
through the sand to the sensor crystal. As a result, the
sharp peaks from the original decay events are weakened, and
blurred by the Compton scattering effect.

 

[Mike Monett]

dplatt@coop.radagast.org (Dave Platt) wrote:

In article <7cc8f810-1325-4542-bda7-63c76d4195a0n@googlegroups.com>,
John Miles, KE5FX <jmiles@gmail.com> wrote:
On Saturday, July 16, 2022 at 7:16:38 AM UTC-7, Dave Platt wrote:
I measured one on my home-made gamma spectrometry system and got
a very recognizable thorium-decay signature (the isotope markers
are from a best-efforts calibration).

https://www.radagast.org/~dplatt/gamma/quantum-pendant.pn

Resolution of that setup looks really good -- is it written up anywhere?

I don\'t think I\'ve written up anything in detail - it\'s been a few
years since I played with it much.

I have a couple of probes, both built with surplus commercial PMTs,
one with a NaI(Tl) crystal and another with a BGO crystal.

How big are the crystals?



--
MRM

 

[whit3rd]

On Saturday, July 16, 2022 at 5:38:44 PM UTC-7, Dave Platt wrote:

The trickiest part was handling high pulse rates, where one pulse
starts while the CSA is still recovering from the previous one.
At some point I may sit down and try writing some DSP code to
de-convolve the CSA\'s pulse shaping and turn the signal back
into narrow impulses.

The analog-days solution was a delay line amplifier; the long recovery tail
is exponential, so a difference amplification of V(t) - (1+epsilon)V(t-s)
flattens the recovery when (1+epsilon) equals the diminution of the signal
during \'s\' seconds. The infinite-impulse response or FIR filter is relatively easy
work to do that.

Some good info here:
<https://www.ortec-online.com/-/media/ametekortec/manuals/4/460-mnl.pdf>

 

[Mike Monett]

Thanks to Phil and John, I will soon have a PMT gamma detector to compare
with the Radiacode. Hopefully, it will be more sensitive so I can be more
certain of measuring Radon in the basement as well as other radiation
sources.

Assembling the electronics turned out to be much easier than some DIY pages
describe on the web. There is a company in Israel that supplies complete
Gamma Spectroscopy electronics. The company is RH-Electronics at

http://rhelectronics.net

I got the PIC18 MCA Module for $95.00 plus shipping at $17.95:

https://www.rhelectronics.store/diy-pic18-mca-kit-for-gamma-spectroscopy

Generating the high voltage for the PMT turned out to be easy. Amazon sells
CCFL inverter boards very cheap. I got one for $13.46 at

https://www.amazon.ca/gp/product/B07YM68GVM/

The last item is a fast high voltage diode to supply the PMT. This turned
out to be the hardest problem until I found Dean Technology in Dallas,
Texas, 75370

They sell a 5KV 100ns diode for a couple of bucks:

https://www.deantechnology.com/products/hl500

The total price is CDN $95.00 + $17.95 + $13.46 + $2.50 = $128.91, not
including the PMT that the seller refuses to sell to Canada.

The US price is about $120 USD including the PMT, so nobody has any excuse
for not being able to detect radon in their basement.





--
MRM

 

[Mike Monett]

dplatt@coop.radagast.org (Dave Platt) wrote:

In article <XnsAED696ABEA7D1idtokenpost@88.198.57.247>,
Mike Monett <spamme@not.com> wrote:

On a related topic, I have been trying to find out why the background
gamma spectrum has a sharp rise at low energies, and where does it come
from? Do you have any ideas?

As I understand it, you\'re seeing is largely Compton radiation and
X-ray fluorescence. When naturally occurring gammas (from K40 decay,
transuranincs, and cosmic rays) smack into atmosphere or into solid
matter, the energy of the gamma is scattered... it\'s dissipated a bit
at a time as the gamma photon interacts with electrons or the nucleus
of the impacted materials.

If a gamma scatters off of an electron, some of the energy is
transferred to the electron. If the electron is bumped up to a
higher-energy orbital and then decays back to its ground state, the
decay can cause the emission of an X-ray photon - fluorescence. This
necessarily has a lower energy than the gamma, and its energy will
depend on just what element was involved in the scattering. The
original scattered gamma will have less energy than it did before, of
course.

So, the rise you see in the spectrum is probably the sum of a whole
bunch of Compton scattering events which involved gammas that were
originally of higher energy.

From what I\'ve read, skyglow (gammas and X-rays originating from
cosmic-ray impacts on the atmosphere) is a big part of this.
NORM is another big part.

A few years ago I collected a box of monazite sand from a local
beach. It definitely shows a thorium signature, but the peaks are
nowhere near as sharp as the ones in the \"quantum pendant\" data.
I believe this is because the thorium is diffused throughout a
much larger amount of base material (I have to use a couple of
pounds of it to get a good reading) and most of the decay gammas
end up Compton-scattering at least once as they work their way
through the sand to the sensor crystal. As a result, the
sharp peaks from the original decay events are weakened, and
blurred by the Compton scattering effect.

A very lucid explanation. Thanks.

I was able to find out what NORM is without having to ask you: \"Naturally
ocurring radioactive materials.\" I\'m so proud of myself

How big are your scintillator crystals?



--
MRM

 

[a a]

On Sunday, 17 July 2022 at 20:01:52 UTC+2, Mike Monett wrote:

dpl...@coop.radagast.org (Dave Platt) wrote:

In article <XnsAED696ABEA...@88.198.57.247>,
Mike Monett <spa...@not.com> wrote:

On a related topic, I have been trying to find out why the background
gamma spectrum has a sharp rise at low energies, and where does it come
from? Do you have any ideas?

As I understand it, you\'re seeing is largely Compton radiation and
X-ray fluorescence. When naturally occurring gammas (from K40 decay,
transuranincs, and cosmic rays) smack into atmosphere or into solid
matter, the energy of the gamma is scattered... it\'s dissipated a bit
at a time as the gamma photon interacts with electrons or the nucleus
of the impacted materials.

If a gamma scatters off of an electron, some of the energy is
transferred to the electron. If the electron is bumped up to a
higher-energy orbital and then decays back to its ground state, the
decay can cause the emission of an X-ray photon - fluorescence. This
necessarily has a lower energy than the gamma, and its energy will
depend on just what element was involved in the scattering. The
original scattered gamma will have less energy than it did before, of
course.

So, the rise you see in the spectrum is probably the sum of a whole
bunch of Compton scattering events which involved gammas that were
originally of higher energy.

From what I\'ve read, skyglow (gammas and X-rays originating from
cosmic-ray impacts on the atmosphere) is a big part of this.
NORM is another big part.

A few years ago I collected a box of monazite sand from a local
beach. It definitely shows a thorium signature, but the peaks are
nowhere near as sharp as the ones in the \"quantum pendant\" data.
I believe this is because the thorium is diffused throughout a
much larger amount of base material (I have to use a couple of
pounds of it to get a good reading) and most of the decay gammas
end up Compton-scattering at least once as they work their way
through the sand to the sensor crystal. As a result, the
sharp peaks from the original decay events are weakened, and
blurred by the Compton scattering effect.
A very lucid explanation. Thanks.

I was able to find out what NORM is without having to ask you: \"Naturally
ocurring radioactive materials.\" I\'m so proud of myself

How big are your scintillator crystals?



--
MRM

Gamma Radiation is never Low Level
since
what matters is
long-term exposure to cancerogenic Gamma Radiation
so
Long-term Low Level exposure
turns into
High Level Gamma Radiation

 

[whit3rd]

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

> Gamma Radiation is never Low Level

False, of course.

since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.

 

[a a]

On Monday, 18 July 2022 at 00:34:05 UTC+2, whit3rd wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level
False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation
Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.
Long-term Low Level exposure
turns into
High Level Gamma Radiation
That\'s just nonsense; word salad, plus some capitalizations.
you are exactly stupid dog

--
Gamma Radiation Sterilization: What You Need to Know
https://int-enviroguard.com/blog/what-is-the-gamma...

Gamma Radiation Sterilization ExplainedAdvantages of Gamma Radiation SterilizationDisadvantages of Gamma Radiation Sterilization

Image
As the name implies, this is a sterilization process, and it\'s commonly used to kill bacteria and microorganisms that may be living on the surface of products, packaging, or goods. Powered by Cobalt-60, the low-dose process is administered when high-energy photons are emitted from a radiation source, which works to io…

---
Gamma Radiation - an overview | ScienceDirect Topics
https://www.sciencedirect.com/.../gamma-radiation

Gamma rays are a form of electromagnetic radiation, whereby gamma radiation kills microorganisms by destroying cellular nucleic acid [1]. The use of gamma irradiation is relatively widespread and was first described in the British Pharmacopeia in 1963 and in the


---

What are gamma rays and how dangerous are they?
Gamma rays are ionizing radiation and are thus biologically hazardous. Due to their high penetration power, they can damage bone marrow and internal organs. Unlike alpha and beta rays, they pass easily through the body and thus pose a formidable radiation protection challenge.


---

Gamma Radiation: A brief background Gamma particles consist of energy photons and were discovered by Paul Villard in 1900 when he was researching gamma radiation that comes from radium. These particles are a form of ionizing radiation and can be dangerous to humans, animals and plant life. The decay of the atomic nucleus downgrades from high levels of energy to lower energy. This process is call gamma decay which is what gives birth to radiation gamma. The nucleus releases particles decreasing its energy. Gamma radiation Radiation gamma How Gamma Radiation is Produced Typically, the gamma particles that are released during gamma decay are radioactive so there is enough power in them to do harm. It has the ability to damage physical structure and cause genetic mutations. Because of the ability to break natural bonds in the human body, it can potentially do a high level of harm and cause many severe health problems. Some of the health concerns can be acute and the damage cannot be repaired through the body’s natural repair process. This is commonly the case with high exposure that is long term and will accumulate to cause serious health problems. What can Stop Radiation Gamma? Gamma radiations can travel very fast at the speed of light and chances of penetration are very high. It can penetrate even through metal and do damage. Even though these rays are dangerous with high exposure, they are still used in the medical field for cancer treatment and for imaging equipment such as x-rays. Your exposure amount can only be measured using a Geiger counter and to determine what can stop gamma radiation. This is the reason why during the x-ray process, you will use a lead apron. Normally, you would need 3 meters of concrete to prevent gamma radiation from penetrating. Gamma radiations Gamma radiation in USA Side Effects of Gamma Radiation Some of the possible problems with heavy exposure to gamma radiations include radiation sickness. This is also known as radiation poisoning. Some of the gamma radiation signs can be nausea, vomiting, bleeding, mouth sores, nausea, diarrhea and loss of hair. Radiation sickness was very common after the bombs in Hiroshima as well as Nagasaki. This is also common after nuclear power plant disaster such as the one in Chernobyl. Radiation sickness can happen with fast exposure to high levels of radiation. Even if you are given gamma radiation for the treatment of an illness, you may still experience side effects from it even though it was meant to help you. Sometimes, you may see a change in your skin that can be mild to severe redness but sometimes it can be dark like a burn. Just like the symptoms of radiation sickness, you may have those with this treatment. This type of exposure can also damage the number of blood cells you have, causing a decrease. These effects are usually not long lasting but there are possibilities of having long term effects. Other effects include weak bones, difficulty with swallowing and dry mouth. It may also cause infertility problems in men or women. Chernobyl Tours ☢ Please support us with LIKE PLEASE ☢ Share On FacebookPinterestTwitterGoogle+ Previous Article What is Beta Radiation? Next Article Hiroshima and Nagasaki Related Posts A Definition of Alpha Decay VladyslavMarch 2, 2016 Effects of radiation on the body The Effects of Radiation on the Human Body VladyslavFebruary 23, 2016 One Response May 21, 2018 Hanan Khan Reply Great. Enjoyed reading it. I was looking for what types of medicines are Gamma rays used in. Maybe you could include that in another article. Thanks. Learned a thing or two. Leave a Reply Your email address will not be published. Comment Name* Email*

Read more at: https://chernobylguide.com/what_is_gamma_radiation/

 

[Mike Monett]

whit3rd <whit3rd@gmail.com> wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level

False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.

Ignore him. I PLONKED him long ago as soon as he appeared.




--
MRM

 

[a a]

On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:

whit3rd <whi...@gmail.com> wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level

False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.
Ignore him. I PLONKED him long ago as soon as he appeared.




--
MRM
Gamma Radiation

Gamma radiation (7.5Gy) resulted in a significant decrease in body weight, tissue weight, testis: body weight ratio (the gonadosomatic index (GSI)) and tubular diameter up to 15 days of irradiation.

https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/gamma-radiation

 

[Anthony William Sloman]

On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:

On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level

False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.
Ignore him. I PLONKED him long ago as soon as he appeared.

Gamma Radiation

Gamma radiation (7.5Gy) resulted in a significant decrease in body weight, tissue weight, testis: body weight ratio (the gonadosomatic index (GSI)) and tubular diameter up to 15 days of irradiation.

https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/gamma-radiation

A a really doesn\'t know what he is talking about.

https://en.wikipedia.org/wiki/Rad_(unit)

The Gy - or Gray - is defined in terms of the energy absorbed - in Joules per kilogram - by the object being irradiated. Gamma rays - higher energy X-rays - go straight through human flesh, so the amount of energy deposited is a bit uncertain.

What is certain is that it is the energy deposited that matters. and a a doesn\'t seem to know enough to understand this.

--
Bill Sloman, Sydney

 

[a a]

On Monday, 18 July 2022 at 12:29:57 UTC+2, bill....@ieee.org wrote:

On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level

False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.
Ignore him. I PLONKED him long ago as soon as he appeared.

Gamma Radiation

Gamma radiation (7.5Gy) resulted in a significant decrease in body weight, tissue weight, testis: body weight ratio (the gonadosomatic index (GSI)) and tubular diameter up to 15 days of irradiation.

https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/gamma-radiation
A a really doesn\'t know what he is talking about.

https://en.wikipedia.org/wiki/Rad_(unit)

The Gy - or Gray - is defined in terms of the energy absorbed - in Joules per kilogram - by the object being irradiated. Gamma rays - higher energy X-rays - go straight through human flesh, so the amount of energy deposited is a bit uncertain.

What is certain is that it is the energy deposited that matters. and a a doesn\'t seem to know enough to understand this.

--
Bill Sloman, Sydney

@BillSydneyLowScience
stop fooling us


IEEE NSW Section’s Committee Members (2021)

Section Section Chair Colin Elston
Section Vice Chair Sudipta Chakraborty
Section Past Chair Sasha Nikolic
Section Treasury Bill Sloman
Section Assistant Treasurer
Section Secretary Dushmantha Thalakotuna
Section Assistant Secretary sherry.moghadassi
Section Nominations Mahmoud Elkhodr
Section eNotice Coordinator sanjib.choudhury
Section Government Liaison & Industry Relations
Section Webmaster Syed Muzahir Abbas
Section Professional Activities Colin Elston
Section Young Professional Chair Hijab Zahra
Section Young Professional Vice Chair Naila Mukhtar
Section Student Activities Chair Arslan Kiyani
Section Student Activities Vice Chair
Section Student Representative Luke Wicent Sy,
Section NSW Section Mentor Chair Mohamad Awdallah
Section Educational Activities & TISP Graeme B Gwilliam
Section Membership Development Bruce Poon
Section WIE Chair Naila Mukhtar
Section WIE Vice Chair Helen Lu
Section Awards and Recognition Committee Chair Antony Zaglas
Section Conference Coordinator David Tien
Section Historian Ramutis Zakarevicius
Section Distribution Lists Dushmantha Thalakotuna
Section Social Implications of Tech NSW Kayleen Manwaring
Section Fellows Activties Coordinator Karu Esselle
Section Circuit Editor Bill Sloman


Welcome to the IEEE NSW Section (REGION 10)

The IEEE New South Wales (NSW) Section provides local activities and services to IEEE members who live, work and visit us in New South Wales, Australia. The NSW Section is member of the IEEE Australia Council and is located within the Asia-Pacific region of the IEEE, known as Region 10. The NSW Section has in excess of 3,000 members (Feb-19) that work together to advance technology for the benefit of humanity. This is done through a variety of local student branches, technical chapters and groups. IEEE NSW is the oldest Section in Australia.

If you reside in NSW you automatically become a member of the NSW Section. One to two emails are sent to members each month outlining all the upcoming events and latest news. To receive this information you must have selected in your IEEE account settings the option to receive local communication.

The NSW Section Committee meets at 7.00pm on the first Monday of every month. Members looking to provide input or looking to volunteer are invited to attend and engage at the committee meeting. Being a volunteer unlocks access to a worldwide network. We are always looking for members that are looking to give back.


About
IEEE is the trusted voice for engineering, computing, and technology information around the globe

So IEEE is not science body, organization at all

 

[John Walliker]

On Monday, 18 July 2022 at 11:29:57 UTC+1, bill....@ieee.org wrote:

On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:

On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

Gamma Radiation is never Low Level

False, of course.
since
what matters is
long-term exposure to cancerogenic Gamma Radiation

Not at all; for human health, what matters is the generation of ion pairs
and gamma radiation includes energies that go right through a human
body without much likelihood of interaction.

Long-term Low Level exposure
turns into
High Level Gamma Radiation

That\'s just nonsense; word salad, plus some capitalizations.
Ignore him. I PLONKED him long ago as soon as he appeared.

Gamma Radiation

Gamma radiation (7.5Gy) resulted in a significant decrease in body weight, tissue weight, testis: body weight ratio (the gonadosomatic index (GSI)) and tubular diameter up to 15 days of irradiation.

https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/gamma-radiation
A a really doesn\'t know what he is talking about.

https://en.wikipedia.org/wiki/Rad_(unit)

The Gy - or Gray - is defined in terms of the energy absorbed - in Joules per kilogram - by the object being irradiated. Gamma rays - higher energy X-rays - go straight through human flesh, so the amount of energy deposited is a bit uncertain.

What is certain is that it is the energy deposited that matters. and a a doesn\'t seem to know enough to understand this.

A simple way of checking whether it is even worth worrying about radon is to look it up!

https://www.ukradon.org/radonmaps/

https://www.epa.gov/sites/default/files/2015-07/documents/zonemapcolor.pdf

https://www.arpansa.gov.au/understanding-radiation/radiation-sources/more-radiation-sources/radon-map

There are similar maps for lots of other countries.

John

 

[Anthony William Sloman]

On Monday, July 18, 2022 at 9:40:19 PM UTC+10, a a wrote:

On Monday, 18 July 2022 at 12:29:57 UTC+2, bill....@ieee.org wrote:
On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:
On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:

<snip>

> So IEEE is not science body, organization at all.

If a a knew what he was talking about, he\'d know that the main function of the IEEE is to publish a large collection of high-impact peer-reviewed scientific journals that deal with the science that underlies electronics. That is what science is about, even if a a doesn\'t have a clue about it.

That\'s why I joined the organisation back around 1980. It\'s not all that obvious the current activities of the NSW Branch, but that\'s where the serious effort goes , and where the serious money gets spent.

I\'ve got just one short comment in that literature

Sloman, A.W. \"Comment on \'Computer aided simulation study of photomultiplier tubes\'\", IEEE Transactions on Electron Devices, ED-38 679-680 (1991).

Because I mostly worked in the UK I published more the UK Institute of Physics journals, but there aren\'t as many of them, and Americans do tend to ignore them.

--
Bill Sloman, Sydney

 

[a a]

On Monday, 18 July 2022 at 14:36:34 UTC+2, bill....@ieee.org wrote:

On Monday, July 18, 2022 at 9:40:19 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 12:29:57 UTC+2, bill....@ieee.org wrote:
On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:
On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:
snip

So IEEE is not science body, organization at all.

If a a knew what he was talking about, he\'d know that the main function of the IEEE is to publish a large collection of high-impact peer-reviewed scientific journals that deal with the science that underlies electronics. That is what science is about, even if a a doesn\'t have a clue about it.

That\'s why I joined the organisation back around 1980. It\'s not all that obvious the current activities of the NSW Branch, but that\'s where the serious effort goes , and where the serious money gets spent.

I\'ve got just one short comment in that literature

Sloman, A.W. \"Comment on \'Computer aided simulation study of photomultiplier tubes\'\", IEEE Transactions on Electron Devices, ED-38 679-680 (1991).

Because I mostly worked in the UK I published more the UK Institute of Physics journals, but there aren\'t as many of them, and Americans do tend to ignore them.

--
Bill Sloman, Sydney
ok, ok, stop your delusiones and day dreaming

IEEE lives on Facebook

IEEE is the world\'s largest technical professional organization dedicated to advancing technological innovation and excellence for the benefit of humanity.
IEEE has offices in China, India, Japan, Singapore, and in the United
States (California, New Jersey, New York, Washington, D.C.)
3,409,150 people like this
3,426,770 people follow this
2,463 people checked in here
http://www.ieee.org/
+1 800-678-4333
Send message
contactcenter@ieee.org
Educational Research Center · Engineering Service · Nonprofit Organization
Privacy Policy

https://www.facebook.com/IEEE.org/

just visit and find me a single thread or comment, having anything to do with science or research

 

[Dimiter_Popoff]

On 7/18/2022 15:58, a a wrote:

On Monday, 18 July 2022 at 14:36:34 UTC+2, bill....@ieee.org wrote:
On Monday, July 18, 2022 at 9:40:19 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 12:29:57 UTC+2, bill....@ieee.org wrote:
On Monday, July 18, 2022 at 8:10:23 PM UTC+10, a a wrote:
On Monday, 18 July 2022 at 04:12:12 UTC+2, Mike Monett wrote:
whit3rd <whi...@gmail.com> wrote:
On Sunday, July 17, 2022 at 1:00:00 PM UTC-7, a a wrote:
snip

So IEEE is not science body, organization at all.

If a a knew what he was talking about, he\'d know that the main function of the IEEE is to publish a large collection of high-impact peer-reviewed scientific journals that deal with the science that underlies electronics. That is what science is about, even if a a doesn\'t have a clue about it.

That\'s why I joined the organisation back around 1980. It\'s not all that obvious the current activities of the NSW Branch, but that\'s where the serious effort goes , and where the serious money gets spent.

I\'ve got just one short comment in that literature

Sloman, A.W. \"Comment on \'Computer aided simulation study of photomultiplier tubes\'\", IEEE Transactions on Electron Devices, ED-38 679-680 (1991).

Because I mostly worked in the UK I published more the UK Institute of Physics journals, but there aren\'t as many of them, and Americans do tend to ignore them.

--
Bill Sloman, Sydney
ok, ok, stop your delusiones and day dreaming

IEEE lives on Facebook

IEEE is the world\'s largest technical professional organization dedicated to advancing technological innovation and excellence for the benefit of humanity.
IEEE has offices in China, India, Japan, Singapore, and in the United
States (California, New Jersey, New York, Washington, D.C.)
3,409,150 people like this
3,426,770 people follow this
2,463 people checked in here
http://www.ieee.org/
+1 800-678-4333
Send message
contactcenter@ieee.org
Educational Research Center · Engineering Service · Nonprofit Organization
Privacy Policy

https://www.facebook.com/IEEE.org/

just visit and find me a single thread or comment, having anything to do with science or research

Oh God. Is this \"a a\" a new troll or a renamed version of the old ones.
Perhaps new, some of the old ones at least knew to not be too loud
on topics other than politics. Perhaps posting utterly illiterate
claims is a technique to engage us, who knows. Like I do at the moment,
what am I thinking....