Sensitivity of GRETINA position resolution to hole mobility

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.

doi:10.1016/j.nima.2016.11.038

Title: Sensitivity of GRETINA position resolution to hole mobility

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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.

Authors:

Prasher, V. S. ^[1]; Cromaz, M. ^[2]; Merchan, E. ^[1]; Chowdhury, P. ^[1]; Crawford, H. L. ^[2]; Lister, C. J. ^[1]; Campbell, C. M. ^[2]; Lee, I. Y. ^[2]; Macchiavelli, A. O. ^[2]; Radford, D. C. ^[3]; Wiens, A. ^[2]

Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division

Publication Date:: Wed Feb 01 00:00:00 EST 2017

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1379741

Alternate Identifier(s):: OSTI ID: 1481698

Grant/Contract Number:: AC02-05CH11231; FG02-94ER40848; AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Additional Journal Information:: Journal Volume: 846; Journal Issue: C; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; hole mobility; basis; signal decomposition; HPGe detectors; γ-ray tracking

Citation Formats


                    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., and Wiens, A. Sensitivity of GRETINA position resolution to hole mobility.  United States: N. p., 2017. 
Web.  doi: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. Sensitivity of GRETINA position resolution to hole mobility.  United States.  https://doi.org/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., and Wiens, A. Wed .  
"Sensitivity of GRETINA position resolution to hole mobility".  United States.  https://doi.org/10.1016/j.nima.2016.11.038.  https://www.osti.gov/servlets/purl/1379741.

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@article{osti_1379741,

  title        = {Sensitivity of GRETINA position resolution to hole mobility},

  author       = {Prasher, V. S. and Cromaz, M. and Merchan, E. and Chowdhury, P. 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 Wiens, A.},

  abstractNote = {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.},

  doi          = {10.1016/j.nima.2016.11.038},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = C,

  volume       = 846,

  place        = {United States},

  year         = {Wed Feb 01 00:00:00 EST 2017},

  month        = {Wed Feb 01 00:00:00 EST 2017}

}

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