Radioluminescence Response of Ce-, Cu-, and Gd-Doped Silica Glasses for Dosimetry of Pulsed Electron Beams.
Sensors (Basel)
; 21(22)2021 Nov 12.
Article
in En
| MEDLINE
| ID: mdl-34833599
ABSTRACT
Radiation-induced emission of doped sol-gel silica glass samples was investigated under a pulsed 20-MeV electron beam. The studied samples were drawn rods doped with cerium, copper, or gadolinium ions, which were connected to multimode pure-silica core fibers to transport the induced luminescence from the irradiation area to a signal readout system. The luminescence pulses in the samples induced by the electron bunches were studied as a function of deposited dose per electron bunch. All the investigated samples were found to have a linear response in terms of luminescence as a function of electron bunch sizes between 10-5 Gy/bunch and 1.5×10-2 Gy/bunch. The presented results show that these types of doped silica rods can be used for monitoring a pulsed electron beam, as well as to evaluate the dose deposited by the individual electron bunches. The electron accelerator used in the experiment was a medical type used for radiation therapy treatments, and these silica rod samples show high potential for dosimetry in radiotherapy contexts.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Silicon Dioxide
/
Electrons
Language:
En
Journal:
Sensors (Basel)
Year:
2021
Document type:
Article
Affiliation country:
Finlandia