On-line measurement of proton beam current in pA range

Vaida Auzelyte; F Andersson; Mikael Elfman; Per Kristiansson; Jan Pallon; Marie Wegdén; Charlotta Nilsson; Natalia Arteaga

doi:10.1016/j.nimb.2006.03.134

On-line measurement of proton beam current in pA range

Vaida Auzelyte, F Andersson, Mikael Elfman, Per Kristiansson, Jan Pallon, Marie Wegdén, Charlotta Nilsson, Natalia Arteaga

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

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.

Original language	English
Pages (from-to)	760-763
Journal	Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume	249
DOIs	https://doi.org/10.1016/j.nimb.2006.03.134
Publication status	Published - 2006

Bibliographical note

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)

Subject classification (UKÄ)

Subatomic Physics

Free keywords

beam blanker
Faraday cup
low beam current
beam control

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10.1016/j.nimb.2006.03.134

Cite this

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title = "On-line measurement of proton beam current in pA range",

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.",

keywords = "beam blanker, Faraday cup, low beam current, beam control",

author = "Vaida Auzelyte and F Andersson and Mikael Elfman and Per Kristiansson and Jan Pallon and Marie Wegd{\'e}n and Charlotta Nilsson and Natalia Arteaga",

note = "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)",

year = "2006",

doi = "10.1016/j.nimb.2006.03.134",

language = "English",

volume = "249",

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journal = "Nuclear Instruments \& Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",

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T1 - On-line measurement of proton beam current in pA range

AU - Auzelyte, Vaida

AU - Andersson, F

AU - Elfman, Mikael

AU - Kristiansson, Per

AU - Pallon, Jan

AU - Wegdén, Marie

AU - Nilsson, Charlotta

AU - Arteaga, Natalia

N1 - 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)

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

KW - beam blanker

KW - Faraday cup

KW - low beam current

KW - beam control

UR - https://www.scopus.com/pages/publications/33745960036

U2 - 10.1016/j.nimb.2006.03.134

DO - 10.1016/j.nimb.2006.03.134

M3 - Article

SN - 0168-583X

VL - 249

SP - 760

EP - 763

JO - Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

ER -

On-line measurement of proton beam current in pA range

Abstract

Bibliographical note

Subject classification (UKÄ)

Free keywords

Access to Document

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