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Title: Development of a Precision Scanning Optical Pulser for Low-Temperature Particle Detectors

Abstract

Gamma-ray spectroscopy using low-temperature microcalorimeter arrays has demonstrated breakthrough energy resolution, establishing an important new technique for the precise characterization of radioactive samples. However, the extraordinary dynamic range of these pixels, spanning tens of electronvolts to hundreds of kiloelectronvolts, places stringent requirements on the calibration accuracy of each pixel. In this paper, we describe the design, development, and initial reflectivity-map testing of a new optical pulser intended for the precise determination of energy calibrations of microcalorimeter pixels and pixel arrays. A high-resolution XYZ scanner combined with 3 K optics achieving a 3-μm focused spot permit in situ imaging and precise placement of the energy deposition on the detector. Lastly, absolute absorbed power can be calibrated via a precision measurement of detector thermal stand-off.

Authors:
 [1];  [1];  [1];  [1]
  1. Univ. of New Mexico, Albuquerque, NM (United States). Department of Physics and Astronomy
Publication Date:
Research Org.:
Univ. of New Mexico, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22)
OSTI Identifier:
1440752
Grant/Contract Number:  
NA0000454
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 23; Journal Issue: 3; Conference: Applied Superconductivity Conference 2012, October 7-12, 2012, Portland, OR; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; microcalorimeter; calibration; optical pulsing; position-dependence

Citation Formats

Jaeckel, F. T., Le, Linh N., Martin, Kyle W., and Boyd, S. T. P. Development of a Precision Scanning Optical Pulser for Low-Temperature Particle Detectors. United States: N. p., 2012. Web. doi:10.1109/tasc.2012.2235114.
Jaeckel, F. T., Le, Linh N., Martin, Kyle W., & Boyd, S. T. P. Development of a Precision Scanning Optical Pulser for Low-Temperature Particle Detectors. United States. doi:10.1109/tasc.2012.2235114.
Jaeckel, F. T., Le, Linh N., Martin, Kyle W., and Boyd, S. T. P. Thu . "Development of a Precision Scanning Optical Pulser for Low-Temperature Particle Detectors". United States. doi:10.1109/tasc.2012.2235114. https://www.osti.gov/servlets/purl/1440752.
@article{osti_1440752,
title = {Development of a Precision Scanning Optical Pulser for Low-Temperature Particle Detectors},
author = {Jaeckel, F. T. and Le, Linh N. and Martin, Kyle W. and Boyd, S. T. P.},
abstractNote = {Gamma-ray spectroscopy using low-temperature microcalorimeter arrays has demonstrated breakthrough energy resolution, establishing an important new technique for the precise characterization of radioactive samples. However, the extraordinary dynamic range of these pixels, spanning tens of electronvolts to hundreds of kiloelectronvolts, places stringent requirements on the calibration accuracy of each pixel. In this paper, we describe the design, development, and initial reflectivity-map testing of a new optical pulser intended for the precise determination of energy calibrations of microcalorimeter pixels and pixel arrays. A high-resolution XYZ scanner combined with 3 K optics achieving a 3-μm focused spot permit in situ imaging and precise placement of the energy deposition on the detector. Lastly, absolute absorbed power can be calibrated via a precision measurement of detector thermal stand-off.},
doi = {10.1109/tasc.2012.2235114},
journal = {IEEE Transactions on Applied Superconductivity},
number = 3,
volume = 23,
place = {United States},
year = {2012},
month = {12}
}

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