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 School of High-Energy Physics

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	1437-1440
Number of pages	4
Journal	Physical Review Letters
Volume	80
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.80.1437
Publication status	Published - 16 Feb 1998

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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 journal › Article

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. ; 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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10.1103/PhysRevLett.80.1437