A SOURCE OF POLARIZED ELECTRONS BASED ON PHOTOEMISSION OF GAASP

被引：28

作者：

HARTMANN, W

CONRATH, D

GASTEYER, W

GESSINGER, HJ

HEIL, W

KESSLER, H

KOCH, L

REICHERT, E

ANDRESEN, HG

KETTNER, T

WAGNER, B

AHRENS, J

JETHWA, J

SCHAFER, FP

机构：

[1] UNIV MAINZ,INST KERNPHYS,W-6500 MAINZ,GERMANY

[2] MAX PLANCK INST CHEM,W-6500 MAINZ,GERMANY

[3] MAX PLANCK INST BIOPHYS CHEM,W-3400 GOTTINGEN,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 286卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(90)90200-P

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The source described is based on photoemission of electrons from 100-GaAs0.62P0.38 activated to negative electron affinity. It is built to inject a beam of polarized electrons into the 350 MeV linear accelerator in Mainz. It is capable of delivering a mean current of 28 μA spin-polarized longitudinally to a degree of 0.44. The lifetime of the cathode under operational conditions is better than 200 h. The source was successfully run in a parity experiment, in which the analysing power of quasielastic scattering from beryllium for longitudinally polarized electrons was measured. © 1990.

引用

页码：1 / 8

页数：8

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