Sensitivity of GRETINA position resolution to hole mobility

V. S. Prasher; M. Cromaz; E. Merchan; P. Chowdhury; H. L. Crawford; C. J. Lister; C. M. Campbell; I. Y. Lee; A. O. Macchiavelli; D. C. Radford; A. Wiens

doi:10.1016/j.nima.2016.11.038

Sensitivity of GRETINA position resolution to hole mobility

V. S. Prasher, M. Cromaz, E. Merchan, P. Chowdhury, H. L. Crawford, C. J. Lister, C. M. Campbell, I. Y. Lee, A. O. Macchiavelli, D. C. Radford, A. Wiens

Physics Division

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4 Scopus citations

Abstract

The sensitivity of the position resolution of the gamma-ray tracking array GRETINA to the hole charge-carrier mobility parameter is investigated. The χ² results from a fit of averaged signal (“superpulse”) data exhibit a shallow minimum for hole mobilities 15% lower than the currently adopted values. Calibration data on position resolution is analyzed, together with simulations that isolate the hole mobility dependence of signal decomposition from other effects such as electronics cross-talk. The results effectively exclude hole mobility as a dominant parameter for improving the position resolution for reconstruction of gamma-ray interaction points in GRETINA.

Original language	English
Pages (from-to)	50-55
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	846
DOIs	https://doi.org/10.1016/j.nima.2016.11.038
State	Published - Feb 21 2017

Keywords

HPGe detectors
basis
hole mobility
signal decomposition
γ-ray tracking

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10.1016/j.nima.2016.11.038

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Prasher, V. S., Cromaz, M., Merchan, E., Chowdhury, P., Crawford, H. L., Lister, C. J., Campbell, C. M., Lee, I. Y., Macchiavelli, A. O., Radford, D. C., & Wiens, A. (2017). Sensitivity of GRETINA position resolution to hole mobility. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 846, 50-55. https://doi.org/10.1016/j.nima.2016.11.038

@article{099c6fb4f25640d99dd37a7019981e93,

title = "Sensitivity of GRETINA position resolution to hole mobility",

abstract = "The sensitivity of the position resolution of the gamma-ray tracking array GRETINA to the hole charge-carrier mobility parameter is investigated. The χ2 results from a fit of averaged signal (“superpulse”) data exhibit a shallow minimum for hole mobilities 15% lower than the currently adopted values. Calibration data on position resolution is analyzed, together with simulations that isolate the hole mobility dependence of signal decomposition from other effects such as electronics cross-talk. The results effectively exclude hole mobility as a dominant parameter for improving the position resolution for reconstruction of gamma-ray interaction points in GRETINA.",

keywords = "HPGe detectors, basis, hole mobility, signal decomposition, γ-ray tracking",

author = "Prasher, {V. S.} and M. Cromaz and E. Merchan and P. Chowdhury and Crawford, {H. L.} and Lister, {C. J.} and Campbell, {C. M.} and Lee, {I. Y.} and Macchiavelli, {A. O.} and Radford, {D. C.} and A. Wiens",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = feb,

day = "21",

doi = "10.1016/j.nima.2016.11.038",

language = "English",

volume = "846",

pages = "50--55",

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

issn = "0168-9002",

publisher = "Elsevier",

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Prasher, VS, Cromaz, M, Merchan, E, Chowdhury, P, Crawford, HL, Lister, CJ, Campbell, CM, Lee, IY, Macchiavelli, AO, Radford, DC & Wiens, A 2017, 'Sensitivity of GRETINA position resolution to hole mobility', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 846, pp. 50-55. https://doi.org/10.1016/j.nima.2016.11.038

TY - JOUR

T1 - Sensitivity of GRETINA position resolution to hole mobility

AU - Prasher, V. S.

AU - Cromaz, M.

AU - Merchan, E.

AU - Chowdhury, P.

AU - Crawford, H. L.

AU - Lister, C. J.

AU - Campbell, C. M.

AU - Lee, I. Y.

AU - Macchiavelli, A. O.

AU - Radford, D. C.

AU - Wiens, A.

PY - 2017/2/21

Y1 - 2017/2/21

N2 - The sensitivity of the position resolution of the gamma-ray tracking array GRETINA to the hole charge-carrier mobility parameter is investigated. The χ2 results from a fit of averaged signal (“superpulse”) data exhibit a shallow minimum for hole mobilities 15% lower than the currently adopted values. Calibration data on position resolution is analyzed, together with simulations that isolate the hole mobility dependence of signal decomposition from other effects such as electronics cross-talk. The results effectively exclude hole mobility as a dominant parameter for improving the position resolution for reconstruction of gamma-ray interaction points in GRETINA.

AB - The sensitivity of the position resolution of the gamma-ray tracking array GRETINA to the hole charge-carrier mobility parameter is investigated. The χ2 results from a fit of averaged signal (“superpulse”) data exhibit a shallow minimum for hole mobilities 15% lower than the currently adopted values. Calibration data on position resolution is analyzed, together with simulations that isolate the hole mobility dependence of signal decomposition from other effects such as electronics cross-talk. The results effectively exclude hole mobility as a dominant parameter for improving the position resolution for reconstruction of gamma-ray interaction points in GRETINA.

KW - HPGe detectors

KW - basis

KW - hole mobility

KW - signal decomposition

KW - γ-ray tracking

UR - http://www.scopus.com/inward/record.url?scp=85004097398&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2016.11.038

DO - 10.1016/j.nima.2016.11.038

M3 - Article

AN - SCOPUS:85004097398

SN - 0168-9002

VL - 846

SP - 50

EP - 55

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

ER -

Sensitivity of GRETINA position resolution to hole mobility

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