Gamma spectroscopy regarding Cs-137

  • Context: Graduate 
  • Thread starter Thread starter abotiz
  • Start date Start date
  • Tags Tags
    Gamma Spectroscopy
Click For Summary
SUMMARY

The discussion centers on gamma spectroscopy measurements of a Cs-137 source, specifically addressing the detection of a peak at approximately 80 keV. The user initially confuses this peak with other known peaks such as the backscatter peak and Compton edge. It is concluded that the 80 keV peak corresponds to X-rays emitted from the lead shielding (K-shell) of the source, specifically at 88 keV. This insight clarifies the user's confusion regarding the spectral peaks observed during the measurement.

PREREQUISITES
  • Understanding of gamma spectroscopy principles
  • Familiarity with Cs-137 radioactive decay and its emissions
  • Knowledge of spectral peak identification techniques
  • Experience with lead shielding effects in radiation detection
NEXT STEPS
  • Research the characteristics of gamma emissions from Cs-137
  • Learn about the effects of lead shielding on gamma spectroscopy
  • Study the identification of spectral peaks in gamma spectroscopy
  • Explore the significance of backscatter peaks and Compton edges in radiation detection
USEFUL FOR

This discussion is beneficial for radiation physicists, gamma spectroscopy technicians, and anyone involved in radiation measurement and analysis, particularly those working with Cs-137 sources and lead shielding.

abotiz
Messages
72
Reaction score
0
Hi,

I was doing a measurement on a Cs-137 source, strong enough so that my detector registers a sum peak.

I can't get my head around A, the peak at ~80 keV.. I get B (backscatter peak), C(compton edge) and D total abs.peak.

I tried with a weaker Cs-137 and I saw the 35keV (Ba) but no ~80keV.

Any ideas?

Thank you very much!
 

Attachments

  • Cs-137.jpg
    Cs-137.jpg
    20.6 KB · Views: 554
Physics news on Phys.org
Is your more intense Cs source contained in a lead pig?
 
Yes it is.

What are you suggesting my friend?
 
Wow... I Feel real stupid now.
Its the X-ray from lead (K-shell) that is 88keV.

Thank you very much!
 
I knew you could figure it out with a hint!
 

Similar threads

High School Gamma spectroscopy, Compton edge
  • · Replies 21 ·
Replies
21
Views
4K
Graduate Gamma spectroscopy- Fine Gain Coarse Gain factors
  • · Replies 5 ·
Replies
5
Views
5K
Interpretation of Net Peak Area in Gamma Spectroscopy
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Is Cs-137 Effective for Calibrating Vintage Geiger Counters?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Gamma ray spectroscopy of deuteron formation
  • · Replies 1 ·
Replies
1
Views
3K
Linear amplifier question, Coarse Gain/Fine Gain.
  • · Replies 1 ·
Replies
1
Views
5K
Graduate Gamma ray spectroscopy: Germanium detector efficiency calibration.
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad How to read a Gamma Ray Spectrum
  • · Replies 2 ·
Replies
2
Views
9K
What is the percentage of Cs137 decays that result in a gamma ray emission?
  • · Replies 3 ·
Replies
3
Views
2K
Determining Gamma Ray energy from spectrum
  • · Replies 3 ·
Replies
3
Views
2K