Positron source using channeling in a tungsten crystal

Autor: A. Jejcic, R. Chehab, X. Artru, V.N. Baier
Rok vydání: 1994
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 344:443-454
ISSN: 0168-9002
Popis: A non-conventional positron source using 1.5–20 GeV electron beam impinging on a tungsten crystal oriented along its 〈111〉 axis is described. Computer simulation taking into account photon creation in the crystal, positron generation in a subsequent amorphous target and also positron capture and transport, allowed extensive investigation of this novel type of source. The possible performances are discussed hereafter. Positron yield has been calculated for different operating conditions. Comparisons with classical sources are presented.
Databáze: OpenAIRE