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On-line measurement of proton beam current in pA range

Auzelyte, Vaida LU ; Andersson, F ; Elfman, Mikael LU ; Kristiansson, Per LU ; Pallon, Jan LU ; Wegdén, Marie LU ; Nilsson, Charlotta LU and Arteaga, Natalia LU (2006) In Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms 249. p.760-763
Abstract
A MeV proton beam with a current in the range of fA-nA is usually measured using a secondary beam signal that is dependent on a sample or requires noise-free accurate charge integration in a Faraday cup. We propose a simple on-line beam current measurement setup that can be used to directly measure beam current during ion beam analysis. A fast beam blanker is used to modulate the beam position after the last set of collimator slits in and out of a mini Faraday cup connected to fA-sensitive electrometer. Less than 100 fA current can be measured during an undisturbed irradiation with kHz sampling frequency. The fast, simple and easily controlled current measurement set-up is going to be routinely used for ion beam analysis and modification... (More)
A MeV proton beam with a current in the range of fA-nA is usually measured using a secondary beam signal that is dependent on a sample or requires noise-free accurate charge integration in a Faraday cup. We propose a simple on-line beam current measurement setup that can be used to directly measure beam current during ion beam analysis. A fast beam blanker is used to modulate the beam position after the last set of collimator slits in and out of a mini Faraday cup connected to fA-sensitive electrometer. Less than 100 fA current can be measured during an undisturbed irradiation with kHz sampling frequency. The fast, simple and easily controlled current measurement set-up is going to be routinely used for ion beam analysis and modification at the new Lund sub-micron beam line. (c) 2006 Elsevier B.V. All rights reserved. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
beam blanker, Faraday cup, low beam current, beam control
in
Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
volume
249
pages
760 - 763
publisher
Elsevier
external identifiers
  • wos:000239545000184
  • scopus:33745960036
ISSN
0168-583X
DOI
10.1016/j.nimb.2006.03.134
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
id
18770b12-7086-4f75-a657-734898df401b (old id 398293)
date added to LUP
2016-04-01 15:48:09
date last changed
2022-01-28 07:11:26
@article{18770b12-7086-4f75-a657-734898df401b,
  abstract     = {{A MeV proton beam with a current in the range of fA-nA is usually measured using a secondary beam signal that is dependent on a sample or requires noise-free accurate charge integration in a Faraday cup. We propose a simple on-line beam current measurement setup that can be used to directly measure beam current during ion beam analysis. A fast beam blanker is used to modulate the beam position after the last set of collimator slits in and out of a mini Faraday cup connected to fA-sensitive electrometer. Less than 100 fA current can be measured during an undisturbed irradiation with kHz sampling frequency. The fast, simple and easily controlled current measurement set-up is going to be routinely used for ion beam analysis and modification at the new Lund sub-micron beam line. (c) 2006 Elsevier B.V. All rights reserved.}},
  author       = {{Auzelyte, Vaida and Andersson, F and Elfman, Mikael and Kristiansson, Per and Pallon, Jan and Wegdén, Marie and Nilsson, Charlotta and Arteaga, Natalia}},
  issn         = {{0168-583X}},
  keywords     = {{beam blanker; Faraday cup; low beam current; beam control}},
  language     = {{eng}},
  pages        = {{760--763}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms}},
  title        = {{On-line measurement of proton beam current in pA range}},
  url          = {{http://dx.doi.org/10.1016/j.nimb.2006.03.134}},
  doi          = {{10.1016/j.nimb.2006.03.134}},
  volume       = {{249}},
  year         = {{2006}},
}