Development of Large-area Lithium-drifted Silicon Detectors for the GAPS Experiment

We have developed large-area lithium-drifted silicon (Si(Li)) detectors to meet the unique requirements of the General Antiparticle Spectrometer (GAPS) experiment. GAPS is an Antarctic balloon-borne mission scheduled for the first flight in late 2020. The GAPS experiment aims to survey low-energy co...

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Bibliographic Details
Main Authors: Kozai, M., Fuke, H., Yamada, M., Erjavec, T., Hailey, C. J., Kato, C., Madden, N., Munakata, K., Perez, K., Rogers, F., Saffold, N., Shimizu, Y., Tokuda, K., Xiao, M.
Format: Conference Proceeding
Language:English
Subjects:
Detectors
Fabrication
Leakage currents
Silicon
Strips
Temperature measurement
X-rays
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Summary:We have developed large-area lithium-drifted silicon (Si(Li)) detectors to meet the unique requirements of the General Antiparticle Spectrometer (GAPS) experiment. GAPS is an Antarctic balloon-borne mission scheduled for the first flight in late 2020. The GAPS experiment aims to survey low-energy cosmic-ray antinuclei, particularly antideuterons, which are recognized as essentially background-free signals from dark matter annihilation or decay. The GAPS Si(Li) detector design is a thickness of 2.5 mm, diameter of 10 cm and 8 readout strips. The energy resolution of 1000 10-cm diameter Si(Li) detectors to achieve high sensitivity to rare antideuteron events, high-yield production is also a key factor for the success of the GAPS mission.
ISSN:2577-0829
DOI:10.1109/NSSMIC.2018.8824342