Development and application of chip calorimeter as an X-ray detector
- Authors
- Kim, Jonghyun; Nam, Sung Min; Jang, Heejun; Chung, Jae-Pil; Kim, Jin Sung; Kim, Byoung-Chul; Chun, Kook Jin; Lee, Wonhee
- Issue Date
- 2월-2020
- Publisher
- ELSEVIER
- Keywords
- Micro/nano fabrication; Chip calorimeter; Vanadium oxide; Radiation detector
- Citation
- CURRENT APPLIED PHYSICS, v.20, no.2, pp.337 - 343
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 20
- Number
- 2
- Start Page
- 337
- End Page
- 343
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/57800
- DOI
- 10.1016/j.cap.2019.11.020
- ISSN
- 1567-1739
- Abstract
- Radiotherapy for cancer patients requires accurate measurement of the absorbed dose of radiation in a treatment planning step. Various types of radiation detectors are currently utilized for dose measurement. Among them, calorimeters are known to be the most precise detector for measuring absorbed dose, but their on-site application is limited by the large size of the equipment. We developed a miniaturized chip calorimeter for application as a radiation detector. The calorimetric radiation detector was built using micro/nano fabrication techniques, and consists of an SU-8 photoresist absorber and high-sensitivity vanadium oxide (VOx) thermistors. The thermistors had a temperature resolution of 135 mu K, and the calorimeter showed a thermal conductance of 11 mu W/K. The detector was irradiated with various X-ray dose rates from a linear accelerator, and the absorbed dose to SU-8 was measured. The detector responses showed high linearity with dose rates, demonstrating the feasibility of the radiation detector for practical uses.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.