All Questions
10
questions
1
vote
1
answer
90
views
What is passive gamma ray emission?
I was trying to find the meaning of passive gamma-ray emission through the internet. I haven't found any helpful article except some research paper just denoting the word passive ray emission. They ...
42
votes
7
answers
5k
views
Do nuclei emit photons?
Generally in text books they say that when a electron goes from high energy state to a lower energy state it emits photons.
My question is, it is possible that a proton that goes from high energy ...
- 445
1
vote
3
answers
118
views
Why would gamma spectroscopy be a tool for nuclei?
I am very much familiar with Atomic spectroscopy, not much with nuclear spectroscopy.
In atoms (electronic cloud), we have electromagnetic interaction that plays the leading role, whose exchange ...
- 427
0
votes
2
answers
175
views
Gamma spectroscopy - Nuclide identification
I have a question about what the usual practice is for nuclide identification in gamma spectroscopy.
For example, if I see a line at 477 keV, I would write that the origin of this line is $^7Be$. As ...
- 1,756
1
vote
0
answers
65
views
To which extent is the treatment of nuclear multipole radiation by the means of a classical electromagnetic field valid?
In the treatment of nuclear multipole radiation, for example in the context of nuclear gamma decay, it is standard, at least at the elementary level, to formalize the electromagnetic radiation as a ...
- 3,623
0
votes
2
answers
452
views
Gamma spectroscopy - Do annihilation photons produce a backscatter peak?
Below is a diagram of part of a structure which I find in a gamma spectrum taken from a hall in which a neutron source is undergoing spallation.
The structure which I'm interested in can be seen ...
- 1,756
4
votes
1
answer
5k
views
Gamma spectroscopy - Table of radioactive isotopes with gamma energy search
For anyone doing gamma spectroscopy by hand, the task is considerably eased by tables like this:
http://nucleardata.nuclear.lu.se/toi/
Where not only can you search for particular nuclides, but you ...
- 1,756
1
vote
1
answer
237
views
Gamma spectroscopy – What is this structure?
What is this strange structure in the gamma spectrum between 450 and 550 keV (below) around the peak at 477 keV? The spectrum seems to rise to a plateau (almost like a small Compton plateau) around ...
- 1,756
0
votes
0
answers
236
views
Coincidence summing in gamma spectrum
Question on coincidence summing here. I've been reading about the coincidence summing effect when a radionuclide has two energy levels that decay to another state in rapid succession.
There is also ...
- 1,756
2
votes
1
answer
3k
views
Should I observe single/double escape peaks for all energies above 1022 keV
I have already asked a question similar to this, but that question was specifically relating to the case of K-40. I'm going to generalize it to any case
My question is to do with the field of gamma ...
- 1,756