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A procedure for the characterization of electron transmission through Frisch grids

Bevilacqua, Riccardo LU ; Gook, A. ; Hambsch, F. -J. ; Jovancevic, N. and Vidali, M. (2015) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 770. p.64-67
Abstract
In Frisch grid ionization chambers special attention must be paid to the operating voltages in order to avoid unwanted collection of electrons on the Frisch grid. Collection of electrons on the grid will lead to a decreased signal to noise ratio and consequently a deteriorated energy resolution. Furthermore, systematic errors in the determination of the angular distribution will be introduced. Theoretical formulas for minimized collection of electrons on the grid were derived by Bunemann et al. [3] in the special case of a Frisch grid consisting of a plane of parallel wires. No such formulas exist for other grid geometries and a careful calibration procedure is needed. We describe here a procedure for characterizing the Frisch grid in... (More)
In Frisch grid ionization chambers special attention must be paid to the operating voltages in order to avoid unwanted collection of electrons on the Frisch grid. Collection of electrons on the grid will lead to a decreased signal to noise ratio and consequently a deteriorated energy resolution. Furthermore, systematic errors in the determination of the angular distribution will be introduced. Theoretical formulas for minimized collection of electrons on the grid were derived by Bunemann et al. [3] in the special case of a Frisch grid consisting of a plane of parallel wires. No such formulas exist for other grid geometries and a careful calibration procedure is needed. We describe here a procedure for characterizing the Frisch grid in terms of its transparency to electrons for a grid consisting of a mesh of crossed wires. (C) 2014 The Authors. Published by Elsevier B.V. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Frisch grids, Ionisation chamber, Grid inefficiency
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
770
pages
64 - 67
publisher
Elsevier
external identifiers
  • wos:000345855200011
  • scopus:84908407002
ISSN
0167-5087
DOI
10.1016/j.nima.2014.10.003
language
English
LU publication?
yes
id
b0a073a9-5027-44b9-9146-85100a4aaa87 (old id 4962554)
date added to LUP
2016-04-01 13:48:05
date last changed
2022-01-27 21:10:33
@article{b0a073a9-5027-44b9-9146-85100a4aaa87,
  abstract     = {{In Frisch grid ionization chambers special attention must be paid to the operating voltages in order to avoid unwanted collection of electrons on the Frisch grid. Collection of electrons on the grid will lead to a decreased signal to noise ratio and consequently a deteriorated energy resolution. Furthermore, systematic errors in the determination of the angular distribution will be introduced. Theoretical formulas for minimized collection of electrons on the grid were derived by Bunemann et al. [3] in the special case of a Frisch grid consisting of a plane of parallel wires. No such formulas exist for other grid geometries and a careful calibration procedure is needed. We describe here a procedure for characterizing the Frisch grid in terms of its transparency to electrons for a grid consisting of a mesh of crossed wires. (C) 2014 The Authors. Published by Elsevier B.V.}},
  author       = {{Bevilacqua, Riccardo and Gook, A. and Hambsch, F. -J. and Jovancevic, N. and Vidali, M.}},
  issn         = {{0167-5087}},
  keywords     = {{Frisch grids; Ionisation chamber; Grid inefficiency}},
  language     = {{eng}},
  pages        = {{64--67}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment}},
  title        = {{A procedure for the characterization of electron transmission through Frisch grids}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2014.10.003}},
  doi          = {{10.1016/j.nima.2014.10.003}},
  volume       = {{770}},
  year         = {{2015}},
}