Fiber-optic bragg gratings for temperature and pressure measurements in isotope production targets for nuclear medicine

A Bragg grating inscribed into an inorganic optical fiber was tested in proton and neutron fields up to doses of 472 Gy. Observation showed that radiation had no eect on the performance of the Fiber Bragg Grating (FBG) used as a gauge measuring temperature and pressure. The FBG sensor was subsequent...

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Published inApplied sciences Vol. 10; no. 13; p. 4610
Main Authors Bakaic, Michael, Hanna, Matthew, Hnatovsky, Cyril, Grobnic, Dan, Mihailov, Stephen, Zeisler, S. Stefan, Hoehr, Cornelia
Format Journal Article
LanguageEnglish
Published Basel MDPI 01.07.2020
MDPI AG
Subjects
Diffraction gratings
Equipment and supplies
Experiments
Fiber optics
Fiber-Bragg Gratings
Inscriptions
isotope production target
Isotopes
Lasers
Measurement
Methods
Nuclear medicine
Pressure
Production processes
radiation hard
Sensors
Temperature measurements
temperature sensor
Canada
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Summary:A Bragg grating inscribed into an inorganic optical fiber was tested in proton and neutron fields up to doses of 472 Gy. Observation showed that radiation had no eect on the performance of the Fiber Bragg Grating (FBG) used as a gauge measuring temperature and pressure. The FBG sensor was subsequently employed to measure the temperature and pressure inside a liquid isotope production target for nuclear medicine. The fiber Bragg grating measured the temperature and pressure of a water target as a 12 MeV proton beam impinged on it in real time and was tested with beam currents of up to 20 µA.
NRC publication: Yes
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2076-3417
2076-3417
DOI:10.3390/app10134610