High power laser for peening of metals enabling production technology
Cryogenic energy-dispersive x-ray detectors are being developed because of their superior energy resolution ((less than or equal to) 10 eV FWHM for keV x rays) compared to semiconductor EDS systems. So far, their range of application is limited due to their comparably small size and low count rate. We present data on the development of superconducting tunnel junction (STJ) detector arrays to address both of these issues. A single STJ detector has a resolution around 10 eV below 1 keV and can be operated at count rates of order 10,000 counts/s. We show that the simultaneous operation of several STJ detectors does not diminish their energy resolution significantly, while increasing the detector area and the maximum count rate by a factor given by the total number of independent channels.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 2851
- Report Number(s):
- UCRL-JC-131104-Rev-1; DP0212000; DP0212000; TRN: AH200112%%252
- Resource Relation:
- Conference: Advanced Aerospace Materials and Processes Conference and Exposition, Tysons Center, VA (US), 06/15/1998--06/18/1998; Other Information: PBD: 18 Jun 1998
- Country of Publication:
- United States
- Language:
- English
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