Any electron/beta coincidence database?

In summary, the conversation discusses the availability of databases or tables that list electron and gamma/x-ray coincidences for various isotopes. The ENSDF and XUNDL databases are suggested as possible sources for this information, and an example of coincidences for 131I to 131Xe is provided. It is also mentioned that the coincidence of internal conversion electrons with characteristic x-rays is implicit.
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RobotGuy
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TL;DR Summary
Any database for electron/beta coincidence database?
Hello All,

I am aware of databases which list possible gamma-gamma coincidences for desired isotope. For example: here provides a table at the bottom with all possible gamma-gamma coincidence for Co-60.

Question is, are there any similar databases/tables for electron coincidences with gammas/x-rays for example? As an example 129 keV internal conversion electron is in coincidence with 30 keV x-rays in Xe-131m.
 
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  • #2
RobotGuy said:
Summary:: Any database for electron/beta coincidence database?

Question is, are there any similar databases/tables for electron coincidences with gammas/x-rays for example? As an example 129 keV internal conversion electron is in coincidence with 30 keV x-rays in Xe-131m.
As far as I know, it's the same database that one cited.

On the 60Co page, one finds a diagram with beta decay and accompanying gammas.
https://www.nndc.bnl.gov/nudat3/get...s=60NI&dsid=60co bM decay (1925.28 d)&unc=nds

60Co may undergo an isomeric transition, as well as beta decay. Beta decay is accompanied by gamma decay, which is well known. The beta energy is very low, so the interest has been and is the 1.17 and 1.33 MeV gammas that are common for the decay to the 60Ni ground state.

Is one asking about isotopes undergoing internal conversion? Or beta decay? Or more generally, any and all processes?

Beta-gamma coincidence has been done, probably for all radionuclides that undergo beta decay, which is why we know the various energy levels. BNL NNDC maintains the database.

An example for 28Al - https://www.tandfonline.com/doi/pdf/10.1080/18811248.2000.9714964

Another example for Xe radioisotopes - https://www.sciencedirect.com/science/article/abs/pii/S0168900219313063 (requires access to ScienceDirect)

https://www.sciencedirect.com/science/article/abs/pii/0020708X59901991 (requires access to ScienceDirect)
 
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  • #3
Hi,

I think ENSDF/XUNDL databases are what you are looking for. You shall try first ENSDF (Evaluated data),
https://www.nndc.bnl.gov/ensdf/
and if the data is not complete, you may try XUNDL (Unevaluated data),
https://www.nndc.bnl.gov/ensdf/ensdf/xundl.jsp

This is how XUNDL webpage looks like. In you example case, you might be interested in decay of 131I to 131Xe
Screenshot from 2021-11-21 16-53-36.png


You may inspect the list of gammas associated with such decay and the level scheme. Here you can see the list of gammas. The 30 keV x-ray are the K-alpha and K-beta characteristic X-rays.

Screenshot from 2021-11-21 16-53-20.png

On the other hand, you have to look for the IT...
Screenshot from 2021-11-21 17-01-32.png


The coincidence of IT electrons with characteristic x-rays is implicit.

I hope it helps.

Cheers,
ORF
 

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Related to Any electron/beta coincidence database?

1. What is an electron/beta coincidence database?

An electron/beta coincidence database is a collection of data that records the instances where an electron and a beta particle are detected simultaneously in a scientific experiment. This type of coincidence is often used in studies of nuclear decay and other related phenomena.

2. How is data collected for an electron/beta coincidence database?

Data is collected using specialized detectors that are designed to detect both electrons and beta particles. These detectors are typically connected to a computer system that records the data as it is collected.

3. What is the purpose of an electron/beta coincidence database?

The purpose of an electron/beta coincidence database is to analyze the relationship between the detection of electrons and beta particles in a scientific experiment. This can provide valuable insights into the properties of nuclear decay and other related phenomena.

4. How is data analyzed in an electron/beta coincidence database?

Data analysis in an electron/beta coincidence database involves looking for patterns and correlations between the detection of electrons and beta particles. Statistical methods are often used to determine the significance of these correlations.

5. What are the potential applications of an electron/beta coincidence database?

An electron/beta coincidence database can be used in a variety of applications, such as studying nuclear decay processes, understanding the behavior of radioactive materials, and developing new technologies for detecting and measuring particles. It can also be used to test and validate theories in nuclear physics and other related fields.

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