THE CHARACTERIZATION OF GOLD X-RAY PHOTOCATHODES

被引：12

作者：

FRASER, GW ^{[1
]}

PAIN, MT ^{[1
]}

LEES, JE ^{[1
]}

BINNS, CR ^{[1
]}

PEARSON, JF ^{[1
]}

HOUGHTON, PR ^{[1
]}

机构：

[1] UNIV LEICESTER,DEPT PHYS & ASTRON,CONDENSED MATTER PHYS GRP,LEICESTER LE1 7RH,ENGLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 321卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(92)90415-Z

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present synchrotron measurements of the X-ray quantum efficiency (electrons/photon) of gold for grazing angles in the range 10-degrees < theta < 90-degrees and for photon energies in a 2.2-8.3 keV band which includes the M-shell absorption edges. Our photoyields are in good agreement with previous measurements at isolated X-ray energies and closely conform to the csc theta scaling law for 20-degrees < theta < 90-degrees. We confirm the presence of photocurrent EXAFS structure at energies between the gold M(IV) and M(II), edges. Preliminary measurements of the dependence of the grazing incidence photoyield on the linear polarisation state of the incident beam support the existence of an "X-ray vectorial effect" in gold at kilovolt energies.

引用

页码：385 / 391

页数：7

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