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Title: Modular total absorption spectrometer

The design and performance of the Modular Total Absorption Spectrometer built and commissioned at the Oak Ridge National Laboratory is presented here. The active volume of the detector is approximately one ton of NaI(Tl), which results in very high full γ energy peak efficiency of 71% at 6 MeV and nearly flat efficiency of around 81.5% for low energy γ-rays between 300 keV and 1 MeV. In addition to the high peak efficiency, the modular construction of the detector permits the use of a γ-coincidence technique in data analysis as well as β-delayed neutron observation.
Authors:
 [1] ; ORCiD logo ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7]
  1. Univ. of Warsaw (Poland); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Nuclear Physics and Application
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Nuclear Physics and Application; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Nuclear Physics and Application; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Warsaw (Poland). Heavy Ion Lab.
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  6. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Idaho National Lab. (INL), Idaho Falls, ID (United States)
  7. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
Publication Date:
Grant/Contract Number:
AC05-00OR22725; FG02-96ER40978; FG52-08NA28552
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 836; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
Beta decay; Total absorption spectrometry; NaI(Tl); Simulation
OSTI Identifier:
1491323
Alternate Identifier(s):
OSTI ID: 1359668

Karny, Marek, Rykaczewski, Krzysztof P., Fijałkowska, Aleksandra G., Rasco, Bertis C., Wolińska-Cichocka, Marzena, Grzywacz, R. K., Goetz, K. C., Miller, D., and Zganjar, E. F.. Modular total absorption spectrometer. United States: N. p., Web. doi:10.1016/j.nima.2016.08.046.
Karny, Marek, Rykaczewski, Krzysztof P., Fijałkowska, Aleksandra G., Rasco, Bertis C., Wolińska-Cichocka, Marzena, Grzywacz, R. K., Goetz, K. C., Miller, D., & Zganjar, E. F.. Modular total absorption spectrometer. United States. doi:10.1016/j.nima.2016.08.046.
Karny, Marek, Rykaczewski, Krzysztof P., Fijałkowska, Aleksandra G., Rasco, Bertis C., Wolińska-Cichocka, Marzena, Grzywacz, R. K., Goetz, K. C., Miller, D., and Zganjar, E. F.. 2016. "Modular total absorption spectrometer". United States. doi:10.1016/j.nima.2016.08.046. https://www.osti.gov/servlets/purl/1491323.
@article{osti_1491323,
title = {Modular total absorption spectrometer},
author = {Karny, Marek and Rykaczewski, Krzysztof P. and Fijałkowska, Aleksandra G. and Rasco, Bertis C. and Wolińska-Cichocka, Marzena and Grzywacz, R. K. and Goetz, K. C. and Miller, D. and Zganjar, E. F.},
abstractNote = {The design and performance of the Modular Total Absorption Spectrometer built and commissioned at the Oak Ridge National Laboratory is presented here. The active volume of the detector is approximately one ton of NaI(Tl), which results in very high full γ energy peak efficiency of 71% at 6 MeV and nearly flat efficiency of around 81.5% for low energy γ-rays between 300 keV and 1 MeV. In addition to the high peak efficiency, the modular construction of the detector permits the use of a γ-coincidence technique in data analysis as well as β-delayed neutron observation.},
doi = {10.1016/j.nima.2016.08.046},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 836,
place = {United States},
year = {2016},
month = {8}
}