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Aerogel Cherenkov detector for characterizing the intense flash x-ray source, Cygnus, spectrum.
Y Kim1, H W Herrmann1, A M McEvoy1
1Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Aerogel Cherenkov detectors can map X-ray spectra from the Cygnus source. Researchers confirmed aerogels function as effective Cherenkov media, producing significantly more light above a specific energy threshold.
Area of Science:
- Nuclear Physics
- Materials Science
- Astrophysics Instrumentation
Background:
- The Cygnus source produces intense flash X-rays up to 2.5 MeV.
- Aerogel detectors offer potential for X-ray energy spectrum measurement.
- Optical transition radiation (OTR) is a potential interference in aerogel detectors.
Purpose of the Study:
- To evaluate aerogels as a Cherenkov medium for X-ray detection.
- To assess the significance of OTR in aerogel Cherenkov detectors.
- To determine the suitability of aerogels for mapping the Cygnus X-ray spectrum.
Main Methods:
- Testing four aerogel samples with a mono-energetic electron beam (1-3 MeV).
- Measuring light production rates in aerogels.
- Comparing Cherenkov radiation with potential OTR contributions.
Main Results:
- Aerogels demonstrated effectiveness as a Cherenkov medium.
- Light production increased significantly above the electron beam energy threshold.
- Aerogel Cherenkov detectors are viable for X-ray spectrum analysis.
Conclusions:
- Aerogels are suitable for Cherenkov radiation detection.
- The proposed detector array can map the Cygnus X-ray spectrum.
- OTR is not a prohibitive issue for this application.
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