14-pixel, multiplexed array of gamma-ray microcalorimeters with 47 eV energy resolution at 103 keV

Journal Article · Mon May 07 00:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2738371· OSTI ID:20971919

Doriese, W B; Ullom, J N; Beall, J A; Duncan, W D; Ferreira, L; Hilton, G C; Horansky, R D; Irwin, K D; Mates, J A. B.; Reintsema, C D; Vale, L R; Xu, Y; Zink, B L; Rabin, M W; Hoover, A S; Rudy, C R; Vo, D T ^[1]

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1. National Institute of Standards and Technology, 325 Broadway, MC 817.03, Boulder, Colorado 80305 (United States)

The authors present a prototype for a high-energy-resolution, high-count-rate, gamma-ray spectrometer intended for nuclear forensics and international nuclear safeguards. The prototype spectrometer is an array of 14 transition-edge-sensor microcalorimeters with an average energy resolution of 47 eV (full width at half maximum) at 103 keV. The resolution of the best pixel is 25 eV. A cryogenic, time-division multiplexer reads out the array. Several important topics related to microcalorimeter arrays are discussed, including cross-talk, the uniformity of detector bias conditions, fabrication of the arrays, and the multiplexed readout. The measurements and calculations demonstrate that a kilopixel array of high-resolution microcalorimeters is feasible.

• OSTI ID: 20971919
• Journal Information: Applied Physics Letters, Vol. 90, Issue 19; Other Information: DOI: 10.1063/1.2738371; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALORIMETERS
CALORIMETRY
COUNTING RATES
CRYOGENICS
ENERGY RESOLUTION
EV RANGE 10-100
GAMMA RADIATION
GAMMA SPECTROMETERS
KEV RANGE 10-100
MULTIPLEXERS
POSITION SENSITIVE DETECTORS
READOUT SYSTEMS