Investigation of positron generation by relativistic electrons in aligned crystals

被引：15
作者：
Kalinin, BN
Naumenko, GA
Potylitsin, AP
Verzilov, VA
Vnukov, IE
Yoshida, K
Goto, K
Endo, I
Isshiki, T
Kondo, T
Matsukado, K
Takashima, T
Takahashi, T
Okuno, H
Nakayama, K
机构：
[1] Tomsk Polytech Univ, Inst Nucl Phys, Tomsk 634050, Russia
[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 739, Japan
[3] Univ Tokyo, Inst Nucl Study, Tanashi, Tokyo 188, Japan
[4] Toshiba Corp, Energy & Mech Res Lab, Kawasaki, Kanagawa 210, Japan
[5] Hiroshima Univ, Fac Sci, Higashihiroshima 739, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 145卷 / 1-2期
关键词：
D O I：
10.1016/S0168-583X(98)00365-6
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An experiment to investigate the positron production efficiency by electrons moving in axially oriented tungsten and silicon single crystals has been conducted. The electron energy was 1.2 GeV. The positron yield from the aligned crystal similar to 0.35 r.1. in thickness was 2.8 times that from the randomly oriented crystals for tungsten and 1.8 times higher for silicon. A simple model has been designed to simulate positron production by coherent bremsstrahlung (CB) photons. Comparison of the calculation with the experiment has shown that most contribution to the positron production in thick crystals comes from CB. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：209 / 220
页数：12
相关论文
共 23 条
[1]  
[Anonymous], 1993, ELECTRODYNAMICS HIGH
[2]  
ARAMITSU K, 1995, HUPD9513
[3]   POSITRON SOURCE USING CHANNELING IN A TUNGSTEN CRYSTAL [J].
ARTRU, X ;
BAIER, VN ;
CHEHAB, R ;
JEJCIC, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 344 (03) :443-454
[4]  
ARTRU X, 1993, PHYS LETT B, V313, P483
[5]  
BAIER VN, 1989, JETP LETT+, V49, P615
[6]  
BAIER VN, 1987, ZH EKSP TEOR FIZ, V65, P686
[7]  
BAIER VN, 1989, HIGH ENERGY ELECTROM
[8]  
Blazhevich S. V., 1993, Technical Physics, V38, P374
[9]  
CHEHAB R, 1989, 8901 LALRT
[10]   HIGH-YIELD POSITRON SYSTEMS FOR LINEAR COLLIDERS [J].
CLENDENIN, JE .
PROCEEDINGS OF THE 1989 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-3: ACCELERATOR SCIENCE AND TECHNOLOGY, 1989, :1107-1111
123