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Title: Fabrication of low-cost, large-area prototype Si(Li) detectors for the GAPS experiment

Abstract

A Si(Li) detector fabrication procedure has been developed with the aim of satisfying the unique requirements of the GAPS (General Antiparticle Spectrometer) experiment. Si(Li) detectors are particularly well-suited to the GAPS detection scheme, in which several planes of detectors act as the target to slow and capture an incoming antiparticle into an exotic atom, as well as the spectrometer and tracker to measure the resulting decay X-rays and annihilation products. These detectors must provide the absorption depth, energy resolution, tracking efficiency, and active area necessary for this technique, all within the significant temperature, power, and cost constraints of an Antarctic long-duration balloon flight. We report here on the fabrication and performance of prototype 2"-diameter, 1–1.25 mm-thick, single-strip Si(Li) detectors that provide the necessary X-ray energy resolution of ~4 keV for a cost per unit area that is far below that of previously-acquired commercial detectors. Lastly, this fabrication procedure is currently being optimized for the 4"-diameter, 2.5 mm-thick, multi-strip geometry that will be used for the GAPS flight detectors.

Authors:
 [1];  [2];  [3];  [3];  [1];  [4];  [3];  [3];  [3];  [3];  [3];  [1];  [3];  [3];  [5];  [3];  [5]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Columbia Univ., New York, NY (United States)
  4. Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara (Japan). Inst. of Space and Astronautical Science
  5. Shimadzu Corporation, Kyoto (Japan)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
OSTI Identifier:
1490683
Grant/Contract Number:  
AC02-76SF00515; NNX17AB44G; JP26707015; JP17H01136; 1122374
Resource 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: 905; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Dark matter; Antiparticle; Antideuteron; Antiproton; Si(Li); GAPS

Citation Formats

Perez, Kerstin, Aramaki, Tsuguo, Hailey, Charles J., Carr, Rachel, Erjavec, Tyler, Fuke, Hideyuki, Garvin, Amani, Harper, Cassia, Kewley, Glenn, Madden, Norman, Mechbal, Sarah, Rogers, Field, Saffold, Nathan, Tajiri, Gordon, Tokuda, Katsuhiko, Williams, Jason, and Yamada, Minoru. Fabrication of low-cost, large-area prototype Si(Li) detectors for the GAPS experiment. United States: N. p., 2018. Web. doi:10.1016/j.nima.2018.07.024.
Perez, Kerstin, Aramaki, Tsuguo, Hailey, Charles J., Carr, Rachel, Erjavec, Tyler, Fuke, Hideyuki, Garvin, Amani, Harper, Cassia, Kewley, Glenn, Madden, Norman, Mechbal, Sarah, Rogers, Field, Saffold, Nathan, Tajiri, Gordon, Tokuda, Katsuhiko, Williams, Jason, & Yamada, Minoru. Fabrication of low-cost, large-area prototype Si(Li) detectors for the GAPS experiment. United States. https://doi.org/10.1016/j.nima.2018.07.024
Perez, Kerstin, Aramaki, Tsuguo, Hailey, Charles J., Carr, Rachel, Erjavec, Tyler, Fuke, Hideyuki, Garvin, Amani, Harper, Cassia, Kewley, Glenn, Madden, Norman, Mechbal, Sarah, Rogers, Field, Saffold, Nathan, Tajiri, Gordon, Tokuda, Katsuhiko, Williams, Jason, and Yamada, Minoru. Thu . "Fabrication of low-cost, large-area prototype Si(Li) detectors for the GAPS experiment". United States. https://doi.org/10.1016/j.nima.2018.07.024. https://www.osti.gov/servlets/purl/1490683.
@article{osti_1490683,
title = {Fabrication of low-cost, large-area prototype Si(Li) detectors for the GAPS experiment},
author = {Perez, Kerstin and Aramaki, Tsuguo and Hailey, Charles J. and Carr, Rachel and Erjavec, Tyler and Fuke, Hideyuki and Garvin, Amani and Harper, Cassia and Kewley, Glenn and Madden, Norman and Mechbal, Sarah and Rogers, Field and Saffold, Nathan and Tajiri, Gordon and Tokuda, Katsuhiko and Williams, Jason and Yamada, Minoru},
abstractNote = {A Si(Li) detector fabrication procedure has been developed with the aim of satisfying the unique requirements of the GAPS (General Antiparticle Spectrometer) experiment. Si(Li) detectors are particularly well-suited to the GAPS detection scheme, in which several planes of detectors act as the target to slow and capture an incoming antiparticle into an exotic atom, as well as the spectrometer and tracker to measure the resulting decay X-rays and annihilation products. These detectors must provide the absorption depth, energy resolution, tracking efficiency, and active area necessary for this technique, all within the significant temperature, power, and cost constraints of an Antarctic long-duration balloon flight. We report here on the fabrication and performance of prototype 2"-diameter, 1–1.25 mm-thick, single-strip Si(Li) detectors that provide the necessary X-ray energy resolution of ~4 keV for a cost per unit area that is far below that of previously-acquired commercial detectors. Lastly, this fabrication procedure is currently being optimized for the 4"-diameter, 2.5 mm-thick, multi-strip geometry that will be used for the GAPS flight detectors.},
doi = {10.1016/j.nima.2018.07.024},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 905,
place = {United States},
year = {2018},
month = {7}
}

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Cited by: 12 works
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Figures / Tables:

Figure 1 Figure 1: Prototype 2′′-diameter, 1.25 mm-thick detector with 1.25′′-diameter active area, mounted with a custom charge-sensitive preamplifier.

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