Separating gamma-ray signals from background

  • Context: Graduate 
  • Thread starter Thread starter majormuss
  • Start date Start date
  • Tags Tags
    Signals
Click For Summary

Discussion Overview

The discussion revolves around methods for separating gamma-ray signals from background noise in data analysis, specifically focusing on the use of statistical distributions and data extraction techniques. The context includes exploratory reasoning and technical clarification regarding data processing methods.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about using the Poisson distribution to separate gamma-ray signals from background noise, expressing uncertainty about the method.
  • Another participant asks for clarification on the data distribution to better understand the context of the problem.
  • A subsequent reply describes the data as a light curve, providing a visual reference for the discussion.
  • A different participant expresses skepticism about the applicability of the Poisson distribution for this scenario, suggesting alternative methods for background extraction instead.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the use of the Poisson distribution, with some expressing uncertainty and others proposing different approaches for background data extraction.

Contextual Notes

Limitations include the lack of detailed information on the data distribution and the specific characteristics of the gamma-ray signals and background noise, which may affect the applicability of proposed methods.

majormuss
Messages
124
Reaction score
4
Hi all, I am working with some data which is a combination of gamma ray signals and some other gamma ray background. Someone told me that I can use Poisson distribution to separate the data from the background but I am not sure how. Does anyone know how to use Poisson or any other viable method?
 
Physics news on Phys.org
How does your data distribution look like?
 
ChrisVer said:
How does your data distribution look like?
It is a light curve. Kinda like this
 
majormuss said:
It is a light curve. Kinda like this
upload_2015-7-19_1-49-5.png
 
I am not sure then that you can use the Poisson distribution.
What you could use instead is some way to find background data or extract them from your program...so that you can subtract them from your curve.
 

Similar threads

  • · Replies 17 ·
Replies
17
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 29 ·
Replies
29
Views
2K
  • · Replies 24 ·
Replies
24
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K
Replies
28
Views
4K
Replies
6
Views
3K
  • · Replies 6 ·
Replies
6
Views
4K