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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00334040" target="_blank" >RIV/68407700:21220/19:00334040 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/19:00334040

Result on the web

<a href="https://doi.org/10.1088/1361-6463/ab37c6" target="_blank" >https://doi.org/10.1088/1361-6463/ab37c6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6463/ab37c6" target="_blank" >10.1088/1361-6463/ab37c6</a>

Result language

angličtina

Original language name

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

Original language description

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 mu m 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 x 10(16)) protons cm(-2) and (1.80 +/- 0.18 x 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) x 10(-18) cm(2) (p mu m)(-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) x 10(-18) cm(2) (p mu m)(-1) Moreover, we observe the FWHM/MP pulse height decreases with fluence for poly-crystalline CVD material and within statistical errors does not change with fluence for single-crystalline CVD material for both 24 GeV proton irradiation and 800 MeV proton irradiation. Finally, we have measured the uniformity of each sample as a function of fluence and observed that for poly-crystalline CVD diamond the samples become more uniform with fluence while for single-crystalline CVD diamond the uniformity does not change with fluence.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics D: Applied Physics

ISSN

0022-3727

e-ISSN

1361-6463

Volume of the periodical

52

Issue of the periodical within the volume

46

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

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UT code for WoS article

000484121900002

EID of the result in the Scopus database

2-s2.0-85073120220