TY  - JOUR
A1  - Niedermeier, Jana
A1  - Penner, Crystal
A1  - Usherovich, Samuel
A1  - Bélanger-Champagne, Camille
A1  - Paulßen, Elisabeth
A1  - Cornelia, Hoehr
T1  - Optical Fibers as Dosimeter Detectors for Mixed Proton/Neutron Fields - A Biological Dosimeter
T2  - electronics
N2  - In recent years, proton therapy has gained importance as a cancer treatment modality due to its conformality with the tumor and the sparing of healthy tissue. However, in the interaction of the protons with the beam line elements and patient tissues, potentially harmful secondary neutrons are always generated. To ensure that this neutron dose is as low as possible, treatment plans could be created to also account for and minimize the neutron dose. To monitor such a treatment plan, a compact, easy to use, and inexpensive dosimeter must be developed that not only measures the physical dose, but which can also distinguish between proton and neutron contributions. To that end, plastic optical fibers with scintillation materials (Gd₂O₂S:Tb, Gd₂O₂S:Eu, and YVO₄:Eu) were irradiated with protons and neutrons. It was confirmed that sensors with different scintillation materials have different sensitivities to protons and neutrons. A combination of these three scintillators can be used to build a detector array to create a biological dosimeter.
KW  - biological dosimeter
KW  - Bragg peak
KW  - relative dosimetry
KW  - optical fibers
KW  - proton therapy
KW  - protons
KW  - neutrons
Y1  - 2023
UR  - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/10442
SN  - 2079-9292
N1  - This article belongs to the Special Issue "Applications of Optical Fiber Sensors"
VL  - 12
IS  - 2
PB  - MDPI
CY  - Basel
ER  -