An Electron Beam Profile Instrument Based on FBGs
Along with the dose rate and the total irradiation dose measurements, the knowledge of the beam localization and the beam profile/energy distribution in the beam are parameters of interest for charged particle accelerator installations when they are used in scientific investigations, industrial appl...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2014-08-01
|
Series: | Sensors |
Subjects: | |
Online Access: | http://www.mdpi.com/1424-8220/14/9/15786 |
id |
doaj-0a374e5ccc924ed587cdddd909165a1d |
---|---|
record_format |
Article |
spelling |
doaj-0a374e5ccc924ed587cdddd909165a1d2020-11-25T01:31:58ZengMDPI AGSensors1424-82202014-08-01149157861580110.3390/s140915786s140915786An Electron Beam Profile Instrument Based on FBGsDan Sporea0Andrei Stăncălie1Nicu Becherescu2Martin Becker3Manfred Rothhardt4National Institute Laser, Plasma and Radiation Physics, 409 Atomiştilor St., Măgurele, RO-077125, RomaniaNational Institute Laser, Plasma and Radiation Physics, 409 Atomiştilor St., Măgurele, RO-077125, RomaniaApel Laser, 15 Vintila Mihăilescu St., Bucharest, RO-060394, RomaniaLeibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena 07745, GermanyLeibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena 07745, GermanyAlong with the dose rate and the total irradiation dose measurements, the knowledge of the beam localization and the beam profile/energy distribution in the beam are parameters of interest for charged particle accelerator installations when they are used in scientific investigations, industrial applications or medical treatments. The transverse profile of the beam, its position, its centroid location, and its focus or flatness depend on the instrument operating conditions or on the beam exit setup. Proof-of-concept of a new type of charged particle beam diagnostics based on fiber Bragg gratings (FBGs) was demonstrated. Its operating principle relies on the measurement of the peak wavelength changes for an array of FBG sensors as function of the temperature following the exposure to an electron beam. Periodically, the sensor irradiation is stopped and the FBG are force cooled to a reference temperature with which the temperature influencing each sensor during beam exposure is compared. Commercially available FBGs, and FBGs written in radiation resistant optical fibers, were tested under electron beam irradiation in order to study their possible use in this application.http://www.mdpi.com/1424-8220/14/9/15786fiber Bragg gratingelectron beamon-line beam profilometryradiation-hardened optical fiber |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dan Sporea Andrei Stăncălie Nicu Becherescu Martin Becker Manfred Rothhardt |
spellingShingle |
Dan Sporea Andrei Stăncălie Nicu Becherescu Martin Becker Manfred Rothhardt An Electron Beam Profile Instrument Based on FBGs Sensors fiber Bragg grating electron beam on-line beam profilometry radiation-hardened optical fiber |
author_facet |
Dan Sporea Andrei Stăncălie Nicu Becherescu Martin Becker Manfred Rothhardt |
author_sort |
Dan Sporea |
title |
An Electron Beam Profile Instrument Based on FBGs |
title_short |
An Electron Beam Profile Instrument Based on FBGs |
title_full |
An Electron Beam Profile Instrument Based on FBGs |
title_fullStr |
An Electron Beam Profile Instrument Based on FBGs |
title_full_unstemmed |
An Electron Beam Profile Instrument Based on FBGs |
title_sort |
electron beam profile instrument based on fbgs |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2014-08-01 |
description |
Along with the dose rate and the total irradiation dose measurements, the knowledge of the beam localization and the beam profile/energy distribution in the beam are parameters of interest for charged particle accelerator installations when they are used in scientific investigations, industrial applications or medical treatments. The transverse profile of the beam, its position, its centroid location, and its focus or flatness depend on the instrument operating conditions or on the beam exit setup. Proof-of-concept of a new type of charged particle beam diagnostics based on fiber Bragg gratings (FBGs) was demonstrated. Its operating principle relies on the measurement of the peak wavelength changes for an array of FBG sensors as function of the temperature following the exposure to an electron beam. Periodically, the sensor irradiation is stopped and the FBG are force cooled to a reference temperature with which the temperature influencing each sensor during beam exposure is compared. Commercially available FBGs, and FBGs written in radiation resistant optical fibers, were tested under electron beam irradiation in order to study their possible use in this application. |
topic |
fiber Bragg grating electron beam on-line beam profilometry radiation-hardened optical fiber |
url |
http://www.mdpi.com/1424-8220/14/9/15786 |
work_keys_str_mv |
AT dansporea anelectronbeamprofileinstrumentbasedonfbgs AT andreistancalie anelectronbeamprofileinstrumentbasedonfbgs AT nicubecherescu anelectronbeamprofileinstrumentbasedonfbgs AT martinbecker anelectronbeamprofileinstrumentbasedonfbgs AT manfredrothhardt anelectronbeamprofileinstrumentbasedonfbgs AT dansporea electronbeamprofileinstrumentbasedonfbgs AT andreistancalie electronbeamprofileinstrumentbasedonfbgs AT nicubecherescu electronbeamprofileinstrumentbasedonfbgs AT martinbecker electronbeamprofileinstrumentbasedonfbgs AT manfredrothhardt electronbeamprofileinstrumentbasedonfbgs |
_version_ |
1725084096872316928 |