In-beam measurement of the position resolution of a highly segmented coaxial germanium detector

被引:35
作者
Descovich, M [1 ]
Lee, IY
Fallon, P
Cromaz, M
Macchiavelli, AO
Radford, DC
Vetter, K
Clark, RM
Deleplanque, MA
Stephens, FS
Ward, D
机构
[1] Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
[2] Oak Ridge Natl Lab, Div Nucl Sci, Oak Ridge, TN 37830 USA
[3] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA 94550 USA
关键词
gamma-ray tracking; position resolution; digital electronics;
D O I
10.1016/j.nima.2005.07.016
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The position resolution of a highly segmented coaxial germanium detector was determined by analyzing the 2055 keV gamma-ray transition of Zr-90 excited in a fusion-evaporation reaction. The high velocity of the Zr-90 nuclei imparted large Doppler shifts. Digital analysis of the detector signals recovered the energy and position of individual gamma-ray interactions. The location of the first interaction in the crystal was used to correct the Doppler energy shift. Comparison of the measured energy resolution with simulations implied a position resolution (root mean square) of 2 mm in three-dimensions. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:535 / 542
页数:8
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