Positron production in tungsten crystals by 1.2-GeV channeling electrons

K. Yoshida, K. Goto, T. Isshiki, I. Endo, T. Kondo, K. Matsukado, T. Takahashi, Y. Takashima, A. Potylitsin, C. Y.U. Amosov, B. Kalinin, G. Naumenko, V. Verzilov, I. Vnukov, H. Okuno, K. Nakayama

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1437-1440
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number7
DOIs
Publication statusPublished - 16 Feb 1998

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positrons
tungsten
crystals
electrons
bremsstrahlung
electron beams
augmentation
single crystals
radiation
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yoshida, K., Goto, K., Isshiki, T., Endo, I., Kondo, T., Matsukado, K., ... Nakayama, K. (1998). Positron production in tungsten crystals by 1.2-GeV channeling electrons. Physical Review Letters, 80(7), 1437-1440. https://doi.org/10.1103/PhysRevLett.80.1437

Positron production in tungsten crystals by 1.2-GeV channeling electrons. / Yoshida, K.; Goto, K.; Isshiki, T.; Endo, I.; Kondo, T.; Matsukado, K.; Takahashi, T.; Takashima, Y.; Potylitsin, A.; Amosov, C. Y.U.; Kalinin, B.; Naumenko, G.; Verzilov, V.; Vnukov, I.; Okuno, H.; Nakayama, K.

In: Physical Review Letters, Vol. 80, No. 7, 16.02.1998, p. 1437-1440.

Research output: Contribution to journalArticle

Yoshida, K, Goto, K, Isshiki, T, Endo, I, Kondo, T, Matsukado, K, Takahashi, T, Takashima, Y, Potylitsin, A, Amosov, CYU, Kalinin, B, Naumenko, G, Verzilov, V, Vnukov, I, Okuno, H & Nakayama, K 1998, 'Positron production in tungsten crystals by 1.2-GeV channeling electrons', Physical Review Letters, vol. 80, no. 7, pp. 1437-1440. https://doi.org/10.1103/PhysRevLett.80.1437
Yoshida K, Goto K, Isshiki T, Endo I, Kondo T, Matsukado K et al. Positron production in tungsten crystals by 1.2-GeV channeling electrons. Physical Review Letters. 1998 Feb 16;80(7):1437-1440. https://doi.org/10.1103/PhysRevLett.80.1437
Yoshida, K. ; Goto, K. ; Isshiki, T. ; Endo, I. ; Kondo, T. ; Matsukado, K. ; Takahashi, T. ; Takashima, Y. ; Potylitsin, A. ; Amosov, C. Y.U. ; Kalinin, B. ; Naumenko, G. ; Verzilov, V. ; Vnukov, I. ; Okuno, H. ; Nakayama, K. / Positron production in tungsten crystals by 1.2-GeV channeling electrons. In: Physical Review Letters. 1998 ; Vol. 80, No. 7. pp. 1437-1440.
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