Position sensitivity of the proposed segmented germanium detectors for the DESPEC project

A. Khaplanov; S. Tashenov; B. Cederwall

doi:10.1016/j.nima.2009.01.080

Position sensitivity of the proposed segmented germanium detectors for the DESPEC project

A. Khaplanov, S. Tashenov, B. Cederwall

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The DESPEC HPGe array is a part of the NuSTAR project at FAIR, Germany. It is aimed at the spectroscopy of the stopped decaying exotic nuclei. Segmented γ-ray tracking detectors are proposed for this array in order to maximize detection efficiency and background suppression when searching for very rare events. Two types of detector modules-stacks of three 16-fold segmented planar crystals and 12- and 16-fold segmented clover detectors-have been investigated and compared from the point of view of the achievable position resolution using pulse shape analysis (PSA). To this end, detector signals from realistic γ-ray interactions have been calculated. These signals were treated by PSA in order to reconstruct the photon interaction locations. Comparing the initial interaction locations to the reconstructed ones, it was found that the double-sided strip planar detector yielded position reconstruction errors at least a factor 2 lower than the other detectors considered.

Original language	English
Pages (from-to)	56-59
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	604
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nima.2009.01.080
State	Published - Jun 1 2009
Externally published	Yes

Keywords

DESPEC
Matrix method
Pulse shape analysis
Segmented germanium detector

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10.1016/j.nima.2009.01.080

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title = "Position sensitivity of the proposed segmented germanium detectors for the DESPEC project",

abstract = "The DESPEC HPGe array is a part of the NuSTAR project at FAIR, Germany. It is aimed at the spectroscopy of the stopped decaying exotic nuclei. Segmented γ-ray tracking detectors are proposed for this array in order to maximize detection efficiency and background suppression when searching for very rare events. Two types of detector modules-stacks of three 16-fold segmented planar crystals and 12- and 16-fold segmented clover detectors-have been investigated and compared from the point of view of the achievable position resolution using pulse shape analysis (PSA). To this end, detector signals from realistic γ-ray interactions have been calculated. These signals were treated by PSA in order to reconstruct the photon interaction locations. Comparing the initial interaction locations to the reconstructed ones, it was found that the double-sided strip planar detector yielded position reconstruction errors at least a factor 2 lower than the other detectors considered.",

keywords = "DESPEC, Matrix method, Pulse shape analysis, Segmented germanium detector",

author = "A. Khaplanov and S. Tashenov and B. Cederwall",

year = "2009",

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doi = "10.1016/j.nima.2009.01.080",

language = "English",

volume = "604",

pages = "56--59",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "1-2",

}

Position sensitivity of the proposed segmented germanium detectors for the DESPEC project. / Khaplanov, A.; Tashenov, S.; Cederwall, B.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, No. 1-2, 01.06.2009, p. 56-59.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Position sensitivity of the proposed segmented germanium detectors for the DESPEC project

AU - Khaplanov, A.

AU - Tashenov, S.

AU - Cederwall, B.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - The DESPEC HPGe array is a part of the NuSTAR project at FAIR, Germany. It is aimed at the spectroscopy of the stopped decaying exotic nuclei. Segmented γ-ray tracking detectors are proposed for this array in order to maximize detection efficiency and background suppression when searching for very rare events. Two types of detector modules-stacks of three 16-fold segmented planar crystals and 12- and 16-fold segmented clover detectors-have been investigated and compared from the point of view of the achievable position resolution using pulse shape analysis (PSA). To this end, detector signals from realistic γ-ray interactions have been calculated. These signals were treated by PSA in order to reconstruct the photon interaction locations. Comparing the initial interaction locations to the reconstructed ones, it was found that the double-sided strip planar detector yielded position reconstruction errors at least a factor 2 lower than the other detectors considered.

AB - The DESPEC HPGe array is a part of the NuSTAR project at FAIR, Germany. It is aimed at the spectroscopy of the stopped decaying exotic nuclei. Segmented γ-ray tracking detectors are proposed for this array in order to maximize detection efficiency and background suppression when searching for very rare events. Two types of detector modules-stacks of three 16-fold segmented planar crystals and 12- and 16-fold segmented clover detectors-have been investigated and compared from the point of view of the achievable position resolution using pulse shape analysis (PSA). To this end, detector signals from realistic γ-ray interactions have been calculated. These signals were treated by PSA in order to reconstruct the photon interaction locations. Comparing the initial interaction locations to the reconstructed ones, it was found that the double-sided strip planar detector yielded position reconstruction errors at least a factor 2 lower than the other detectors considered.

KW - DESPEC

KW - Matrix method

KW - Pulse shape analysis

KW - Segmented germanium detector

UR - https://www.scopus.com/pages/publications/65749100014

U2 - 10.1016/j.nima.2009.01.080

DO - 10.1016/j.nima.2009.01.080

M3 - Article

AN - SCOPUS:65749100014

SN - 0168-9002

VL - 604

SP - 56

EP - 59

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-2

ER -

Position sensitivity of the proposed segmented germanium detectors for the DESPEC project

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Keywords

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