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A study of the radiation tolerance of poly-crystalline and single-crystalline CVD diamond to 800 MeV and 24 GeV protons

Bäni, L; Alexopoulos, A; Artuso, M; Bachmair, F; Bartosik, M; Beck, H; Bellini, V; Belyaev, V; Bentele, B; Bes, A; Brom, J-M; Bruzzi, M; Chiodini, G; Chren, D; Cindro, V; Claus, G; Collot, J; Cumalat, J; Dabrowski, A; D’Alessandro, R; ... mehr

We have measured the radiation tolerance of poly-crystalline and single-crystalline diamonds grown by the chemical vapor deposition (CVD) process by measuring the charge collected before and after irradiation in a 50 μm pitch strip detector fabricated on each diamond sample. We irradiated one group of sensors with 800 MeV protons, and a second group of sensors with 24 GeV protons, in steps, to (1.34 ± 0.08 × 10$^{16}$) protons cm$^{-2}$ and (1.80 ± 0.18 × 10$^{16}$) protons cm$^{-2}$ respectively. We observe the sum of mean drift paths for electrons and holes for both poly-crystalline CVD diamond and single-crystalline CVD diamond decreases with irradiation fluence from its initial value according to a simple damage curve characterized by a damage constant for each irradiation energy and the irradiation fluence. We find for each irradiation energy the damage constant, for poly-crystalline CVD diamond to be the same within statistical errors as the damage constant for single-crystalline CVD diamond. We find the damage constant for diamond irradiated with 24 GeV protons to be 0.62$^{+0.01}$$_{−0.01}$ (stat) $^{+0.06}$$_{−0.06}$ (syst) × 10$^{-18}$ cm$^{2}$ (p μm) $^{-1}$ and the damage constant for diamond irradiated with 800 MeV protons to be 1.04$^{+0.02}$$_{−0.02}$ (stat) $^{+0.04}$$_{−0.05}$ (syst) × 10$^{-18}$ cm$^{2}$ (p μm) $^{-1}$. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000118418
Veröffentlicht am 16.04.2020
DOI: 10.1088/1361-6463/ab37c6
Zitationen: 7
Web of Science
Zitationen: 2
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT KIT-Zentrum Elementarteilchen- und Astroteilchenphysik (KCETA)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 0022-3727, 1361-6463
KITopen-ID: 1000118418
Erschienen in Journal of physics / D
Verlag IOP Publishing
Band 52
Heft 46
Seiten Art. Nr.: 465103
Vorab online veröffentlicht am 13.11.2019
Schlagwörter chemical vapor deposition, single crystal diamond, polycrystalline diamond, charge collection distance, mean drift path, radiation tolerance, radiation damage constant
Nachgewiesen in Dimensions
Web of Science
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