Compton polarimetry with a 36-fold segmented HPGe-detector of the AGATA-type

被引：12

作者：

Alikhani, B. ^{[1
]}

Givechev, A. ^{[1
]}

Heinz, A. ^{[1
,2
]}

John, P. R. ^{[1
]}

Leske, J. ^{[1
]}

Lettmann, M. ^{[1
]}

Moeller, O. ^{[1
]}

Pietralla, N. ^{[1
]}

Roeder, C. ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[2] Chalmers, Subat Phys Div, SE-41296 Gothenburg, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 675卷

关键词：

Compton polarimeter; Segmented HPGe-detectors; Compton-tracking polarimetry; polarization sensitivity; POLARIZATION SENSITIVITY; PARITY ASSIGNMENTS; ARRAY; SCATTERING;

D O I：

10.1016/j.nima.2012.02.016

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The calibration of a highly-segmented AGATA-type HPGe-detector as a gamma-ray Compton polarimeter and a method for (quasi-)continuous angle Compton polarimetry are presented. The high granularity, combined with the large detection efficiency of the AGATA-type HPGe-crystals, offers a significant advantage for polarization measurements of gamma-radiation. A polarization-directional correlation experiment with gamma-rays from a Co-60 source with an activity of about 680 kBq was used to determine the polarization sensitivity of a single AGATA-type HPGe-crystal at 1173 and 1332 key and to demonstrate the method. The polarization measurement was based on segment information. In our set-up a polarization sensitivity of 19% at 1332 keV has been achieved. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：144 / 154

页数：11

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