A SPECTROMETER FOR COMPTON-SCATTERING STUDIES OF HEAVY-ELEMENTS AND THE PROBLEM OF BREMSSTRAHLUNG BACKGROUND

被引：25

作者：

ANDREJCZUK, A ^{[1
]}

ZUKOWSKI, E ^{[1
]}

DOBRZYNSKI, L ^{[1
]}

COOPER, MJ ^{[1
]}

机构：

[1] UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1993年 / 337卷 / 01期

关键词：

D O I：

10.1016/0168-9002(93)91146-E

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A high energy Compton spectrometer which operates at either 662 keV or 412 keV with the gamma-ray sources Au-198 and Cs-137, respectively, has been designed and built. Measurements conducted on Al, Cu and Ag samples indicate the usefulness of this spectrometer for studies of electron momentum distributions. Systematic discrepancies observed between the experimental and theoretical Compton profiles of silver are thought to originate from a background of bremsstrahlung radiation, associated with the Compton recoil electrons and photoelectrons, which is not significant in studies of lighter elements or with lower energy sources. The problem caused by the presence of the additional background in the scattering of high energy radiation from heavy elements is discussed.

引用

页码：133 / 144

页数：12

共 43 条

[1] BREMSSTRAHLUNG AND ITS CONTRIBUTION TO THE GAMMA-RAY SCATTERING SPECTRA OF SOLIDS [J].