| Title: |
A Highly Versatile X-ray and Electron Beam Diamond Dosimeter for Radiation Therapy and Protection |
| Authors: |
Pettinato, Sara; Girolami, Marco; Stravato, Antonella; Serpente, Valerio; Musio, Daniela; Rossi, Maria C; Trucchi, Daniele M; Olivieri, Riccardo; Salvatori, Stefano |
| Contributors: |
Pettinato, Sara; Girolami, Marco; Stravato, Antonella; Serpente, Valerio; Musio, Daniela; Rossi, Maria C; Trucchi, Daniele M; Olivieri, Riccardo; Salvatori, Stefano |
| Publication Year: |
2023 |
| Subject Terms: |
CVD diamond detector; X-ray; dosimetry; electron beam; radiation protection; radiation therapy |
| Description: |
Radiotherapy is now recognized as a pillar in the fight against cancer. Two different types are currently used in clinical practice: (1) external beam radiotherapy, using high-energy X-rays or electron beams, both in the MeV-range, and (2) intraoperative radiotherapy, using low-energy X-rays (up to 50 keV) and MeV-range electron beams. Versatile detectors able to measure the radiation dose independently from the radiation nature and energy are therefore extremely appealing to medical physicists. In this work, a dosimeter based on a high-quality single-crystal synthetic diamond sample was designed, fabricated and characterized under low-energy X-rays, as well as under high-energy pulsed X-rays and electron beams, demonstrating excellent linearity with radiation dose and dose-rate. Detector sensitivity was measured to be 0.299 ± 0.002 μC/Gy under 6 MeV X-ray photons, and 0.298 ± 0.004 μC/Gy under 6 MeV electrons, highlighting that the response of the diamond dosimeter is independent of the radiation nature. Moreover, in the case of low-energy X-rays, an extremely low limit of detection (23 nGy/s) was evaluated, pointing out the suitability of the device to radiation protection dosimetry. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:000926189700001; volume:16; issue:2; firstpage:824; journal:MATERIALS; https://hdl.handle.net/11590/451647 |
| DOI: |
10.3390/ma16020824 |
| Availability: |
https://hdl.handle.net/11590/451647; https://doi.org/10.3390/ma16020824 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.F5C4708B |
| Database: |
BASE |