All Questions
Tagged with radiation gamma-rays
65
questions
3
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1
answer
107
views
Which exact element makes Spent Nuclear Fuel dangerous?
I understand that beta and gamma emissions are what makes the decay of a radioisotope dangerous. However, U-238, which is what SNF is mostly made of, doesn't emit gamma or beta particles frequently ...
- 43
-3
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3
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261
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Why can gamma rays penetrate a thick layer of lead and why can't a beta particle penetrate a thin sheet of aluminum?
This might be a stupid question, but, why is it that gamma rays are able to penetrate almost any barrier without question? We know that gamma rays are simply high frequency waves with massive amounts ...
- 57
0
votes
1
answer
326
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Where are the Gamma rays in Beryllium-7 decay coming from? [closed]
Beryllium-7 decays via electron capture.
This gives of Neutrino and later a Auger electron/Extreme ultraviolet photon.
So where does the Gamma rays that occur 10% of time according to here come from?
- 2,908
3
votes
1
answer
392
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Compton absorption vs Compton scattering
I'm reading Knoll's book "Radiation Detection and Measurement", and in the chapter discussing the interactions between gamma radiation and matter, he explains about the three main types of ...
- 4,011
5
votes
2
answers
950
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Reflection of Gamma Rays
I have an experiment with a radioactive Cs$^{137}$ source which beta decays to Ba$^{137}$. Some of the barium are in an excited nuclear state which decay to the ground state and emit a $662$ keV $\...
- 2,599
0
votes
1
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786
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How does gamma radiation ionise atoms?
I am having trouble understanding how gamma radiation can ionise atoms. I think it is due to a lack of understanding about how photons work. My basic understanding is that gamma radiation doesn't ...
- 31
0
votes
1
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97
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How do electrons escape nuclear reactors to cause Cherenkov radiation?
From what I understand, nuclear reactor cores are shielded, so that gamma rays don't get too far too often. But since electrons are expected to penetrate less material, then how are underwater nuclear ...
- 3
0
votes
2
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125
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Can gamma rays pass through Geiger-Muller counter?
Im trying to build a custom Geiger-Muller counter with an argon tube ( i’m still choosing to use wether argon 36 or 40 ) . The fact is that the counter will be made of multiple tubes which are all on ...
0
votes
2
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553
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Can we detect the alpha and beta particles using the scintillator detectors?
In the experiment gamma ray detection with scintillators, we can detect the gamma ray particle. Is it possible to detect alpha and beta particle using scintillator detectors. If not then why is so? ...
- 457
0
votes
1
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111
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How to produce ionizing radiation without radioactive substance?
I think ionizing radiation caused by ray or particles.
My professor told me:"without radioactive substance,with only commercial products,it's possible to produce ionizing radiation."
Can ...
- 127
0
votes
0
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163
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Why aren't gamma rays more ionizing than beta and alpha rays considering the fact that it is the highest energy photon and very penetrative?
Gamma rays are photons and light waves that have more than enough energy to excite an electron and break its bond. So why aren't they more ionizing than beta and alpha particles? Is this comparison ...
2
votes
1
answer
80
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I thought specific activity was a property of the radionuclide?
How can specific activity of Mo-99 be higher for Mo-99 produced from fission than Mo-99 produced from neutron capture? I thought specific activity would be a property of Mo-99 so it will always be the ...
- 21
0
votes
1
answer
66
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Why do gamma-rays and neutrons produce different decay times in scintillation pulses from the same compound?
The basis of pulse shape discrimination is that gamma-rays and neutrons have different decay times of their electronic pulses. What makes gamma-rays and neutrons interact with the same compound ...
- 325
0
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0
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62
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Generating very large area gamma rays by other ways other than large accelerators
According to this link https://apps.dtic.mil/dtic/tr/fulltext/u2/a351472.pdf, HERMES III at Sandia National Labs can generate very large area gamma rays by converting the electron beam into ...
- 364
0
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1
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156
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Where does the proton's kinetic energy go when a proton and nuclei are fused together to create a heavy nucleus? I cannot solve this problem
The problem then states: estimate the minimum wavelength of the gamma ray photon.
The answer to this question is: 0.25 x 10^-11 - (binding energy of oxygen - the binding energy of F which is 0.04 x 10^...
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