Fano factor evaluation of diamond detectors for alpha particles | Zendy

Shimaoka Takehiro | Zendy; Kaneko Junichi H. | Zendy; Sato Yuki | Zendy; Tsubota Masakatsu | Zendy; Shimmyo Hiroaki | Zendy; Chayahara Akiyoshi | Zendy; Watanabe Hideyuki | Zendy; Umezawa Hitoshi | Zendy; Mokuno Yoshiaki | Zendy

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Fano factor evaluation of diamond detectors for alpha particles

Author(s) -

Shimaoka Takehiro,

Kaneko Junichi H.,

Sato Yuki,

Tsubota Masakatsu,

Shimmyo Hiroaki,

Chayahara Akiyoshi,

Watanabe Hideyuki,

Umezawa Hitoshi,

Mokuno Yoshiaki

Publication year - 2016

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.201600195

Subject(s) - fano factor , diamond , alpha particle , detector , physics , resolution (logic) , electron , atomic physics , particle (ecology) , materials science , nuclear physics , optics , oceanography , shot noise , artificial intelligence , computer science , composite material , geology

This report is the first describing experimental evaluation of Fano factor for diamond detectors. High‐quality self‐standing chemical vapor deposited diamond samples were produced using lift‐off method. Alpha‐particle induced charge measurements were taken for three samples. A 13.1 ±0.07 eV of the average electron–hole pair creation energy and excellent energy resolution of approximately 0.3% were found for 5.486 MeV alpha particles from an 241 Am radioactive source. The best Fano factor for 5.486 MeV alpha particles, calculated from experimentally obtained epsilon values and the detector intrinsic energy resolution, was 0.382 ± 0.007.

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