Performance of Tantalum STJ X-ray Detectors at Elevated Count Rates
Abstract
Here, we have developed an X-ray detector system based on Ta superconducting tunnel junctions (STJs) with an energy resolution below 10 eV under 1 keV. A principal advantage of STJs over other low-temperature detectors is their high count rate capability. In this work, we have optimized the operating conditions and digital pulse processing parameters for input count rates up to 25 kcps/pixel. Resolution below 10 eV is maintained up to 2.5 kcps/pixel, and at input rates of 25 kcps per pixel the resolution is 26 eV FWHM at 525 eV.
- Authors:
-
- STAR Cryoelectronics, Santa Fe, NM (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1544509
- Report Number(s):
- LLNL-JRNL-778830
Journal ID: ISSN 0022-2291; 973009
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Low Temperature Physics
- Additional Journal Information:
- Journal Volume: 194; Journal Issue: 1-2; Journal ID: ISSN 0022-2291
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Carpenter, M. H., Ponce, F., Friedrich, S., and Cantor, R. Performance of Tantalum STJ X-ray Detectors at Elevated Count Rates. United States: N. p., 2018.
Web. doi:10.1007/s10909-018-2071-4.
Carpenter, M. H., Ponce, F., Friedrich, S., & Cantor, R. Performance of Tantalum STJ X-ray Detectors at Elevated Count Rates. United States. doi:10.1007/s10909-018-2071-4.
Carpenter, M. H., Ponce, F., Friedrich, S., and Cantor, R. Wed .
"Performance of Tantalum STJ X-ray Detectors at Elevated Count Rates". United States. doi:10.1007/s10909-018-2071-4. https://www.osti.gov/servlets/purl/1544509.
@article{osti_1544509,
title = {Performance of Tantalum STJ X-ray Detectors at Elevated Count Rates},
author = {Carpenter, M. H. and Ponce, F. and Friedrich, S. and Cantor, R.},
abstractNote = {Here, we have developed an X-ray detector system based on Ta superconducting tunnel junctions (STJs) with an energy resolution below 10 eV under 1 keV. A principal advantage of STJs over other low-temperature detectors is their high count rate capability. In this work, we have optimized the operating conditions and digital pulse processing parameters for input count rates up to 25 kcps/pixel. Resolution below 10 eV is maintained up to 2.5 kcps/pixel, and at input rates of 25 kcps per pixel the resolution is 26 eV FWHM at 525 eV.},
doi = {10.1007/s10909-018-2071-4},
journal = {Journal of Low Temperature Physics},
number = 1-2,
volume = 194,
place = {United States},
year = {2018},
month = {9}
}
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