Journal
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Volume 25, Issue 3, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2014.2380173
Keywords
Energy resolution; gamma-ray spectroscopy; tantalum (Ta) absorber; transition edge sensor
Funding
- U.S. Department of Energy [ABC-123456]
- Grants-in-Aid for Scientific Research [26630480] Funding Source: KAKEN
Ask authors/readers for more resources
We are developing transition edge sensor with a superconducting high-Z metal bulk absorber for high energy resolution spectroscopy of hard X-ray and gamma-ray within 100 keV similar to 1 MeV. We applied a bulk tantalum absorber for it has low heat capacity and high absorption efficiency to high energy photons. As a result of an experiment using gamma-ray from Cs-137, an energy resolution that is better than that of Ge semiconductor detector was achieved at 662 keV. In addition, we demonstrated more than three times higher absorption efficiency to 662 keV photons compared to Sn absorber TES as previously reported elsewhere. From our rough calculation, it is estimated that the heat capacity of tantalum is increased than theory and that may be the limit factor of the energy resolution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available