Calibration of an UTW Si(Li) detector in the 0.28-22.1 keV energy range at a nuclear microprobe

被引：22

作者：

Uzonyi, I ^{[1
]}

Szabó, G ^{[1
]}

Borbély-Kiss, I ^{[1
]}

Kiss, AZ ^{[1
]}

机构：

[1] Hungarian Acad Sci, Dept Electrostat Accelerators, Inst Nucl Res, ATOMKI, H-4001 Debrecen, Hungary

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2003年 / 210卷

关键词：

nuclear microprobe; UTW Si(Li); efficiency; PIXE; thick target;

D O I：

10.1016/S0168-583X(03)01004-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The efficiency of an ultra thin windowed Si(Li) detector has been determined experimentally in the photon energy range of 0.28-22.1 keV at the Debrecen scanning nuclear microprobe facility. The calibration technique was based on the measurement of thick targets made from pure elements and chemical compounds by PIXE technique. Characteristic X-ray spectra were fitted and PIXE cross-sections were calculated by the new version of the PIXEKLM program package. The efficiency function was determined by fitting the detector parameters in order to minimize the difference between the measured and calculated efficiency values. The accuracy of the method is estimated to be 20-10% in the 0.28-1 keV energy range and 10-5% above 1 keV. An overview of theoretical and experimental aspects of the efficiency calibration procedure will be presented. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：147 / 152

页数：6

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