Positron Production in Tungsten Crystals by 1.2-GeV Channeling Electrons

Physical Review Letters 80 巻 7 号 1437-1440 頁 1998-02-16 発行
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タイトル ( eng )
Positron Production in Tungsten Crystals by 1.2-GeV Channeling Electrons
作成者
Yoshida Katsuhide
Goto Kiminori
Isshiki Tetsuya
Endo Ichita
Kondo Toshihisa
Matsukado Koji
Takashima Yoshifumi
Potylitsyn Alexander P.
Amosov C. Yu.
Kalinin B. N.
Naumenko Gennady A.
Verzilov V. A.
Vnukov I. E.
Okuno Hideki
Nakayama Koichi
収録物名
Physical Review Letters
80
7
開始ページ 1437
終了ページ 1440
抄録
The efficiency of positron production by a 1.2-GeV electron beam incident on a tungsten single crystal oriented in an axially channeling condition has been experimentally studied. Positron yields from a 1.2-mm-thick crystal have been measured to be ∼2.5-3.0 times larger than those from amorphous targets with the same thickness. A simple model simulation of the positron production process shows that coherent bremsstrahlung, as well as channeling radiation, contributes to the enhancement of the positron yields.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 1998-02-16
権利情報
Copyright (c) 1998 American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.80.1437
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.80.1437