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Title: Reproducibility and calibration of MMC-based high-resolution gamma detectors

Here, we describe a prototype γ-ray detector based on a metallic magnetic calorimeter with an energy resolution of 46 eV at 60 keV and a reproducible response function that follows a simple second-order polynomial. The simple detector calibration allows adding high-resolution spectra from different pixels and different cool-downs without loss in energy resolution to determine γ-ray centroids with high accuracy. As an example of an application in nuclear safeguards enabled by such a γ-ray detector, we discuss the non-destructive assay of 242Pu in a mixed-isotope Pu sample.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. Heidelberg, Heidelberg (Germany)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-677350
Journal ID: ISSN 0003-6951
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 2; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; calibration; gold; superconducting detectors; magnetic field sensors; superconducting quantum interference devices
OSTI Identifier:
1281700

Bates, C. R., Pies, C., Kempf, S., Hengstler, D., Fleischmann, A., Gastaldo, L., Enss, C., and Friedrich, S.. Reproducibility and calibration of MMC-based high-resolution gamma detectors. United States: N. p., Web. doi:10.1063/1.4958699.
Bates, C. R., Pies, C., Kempf, S., Hengstler, D., Fleischmann, A., Gastaldo, L., Enss, C., & Friedrich, S.. Reproducibility and calibration of MMC-based high-resolution gamma detectors. United States. doi:10.1063/1.4958699.
Bates, C. R., Pies, C., Kempf, S., Hengstler, D., Fleischmann, A., Gastaldo, L., Enss, C., and Friedrich, S.. 2016. "Reproducibility and calibration of MMC-based high-resolution gamma detectors". United States. doi:10.1063/1.4958699. https://www.osti.gov/servlets/purl/1281700.
@article{osti_1281700,
title = {Reproducibility and calibration of MMC-based high-resolution gamma detectors},
author = {Bates, C. R. and Pies, C. and Kempf, S. and Hengstler, D. and Fleischmann, A. and Gastaldo, L. and Enss, C. and Friedrich, S.},
abstractNote = {Here, we describe a prototype γ-ray detector based on a metallic magnetic calorimeter with an energy resolution of 46 eV at 60 keV and a reproducible response function that follows a simple second-order polynomial. The simple detector calibration allows adding high-resolution spectra from different pixels and different cool-downs without loss in energy resolution to determine γ-ray centroids with high accuracy. As an example of an application in nuclear safeguards enabled by such a γ-ray detector, we discuss the non-destructive assay of 242Pu in a mixed-isotope Pu sample.},
doi = {10.1063/1.4958699},
journal = {Applied Physics Letters},
number = 2,
volume = 109,
place = {United States},
year = {2016},
month = {7}
}