Detectors for measurement of microdosimetric quantities. (August 2022)

• Record Type: Journal Article
• Authors: Agosteo, Stefano
• Is Part Of: Radiation measurements. Volume 156(2022)
• Publication Date: 2022-08
• Subjects: Microdosimetry -- Hadron therapy -- TEPCs -- Silicon detectors -- GEM detectors -- Diamond detectors; Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2022.106807
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: Microdosimetric quantities have been used for assessing the radiation quality of hadron therapy fields since long. They are stochastic quantities whose distributions depend on the fluctuations of energy deposition in cellular and/or sub-cellular structures. The present work overviews the detectors which are used mainly for assessing the radiation quality of hadron therapy fields (protons and carbon ions), discussing their advantages and limitations based on the author's experience. The microdosimeters which are described and discussed herein are, in particular, tissue-equivalent proportional counters (TEPCs), gas detectors based on gas-electron multiplication (GEMs), silicon and diamond detectors. Highlights: Microdosimetry allows assessing the radiation quality of hadron therapy fields. TEPCs are the reference detectors for microdosimetry. Silicon and diamond detectors may show a limited response because the electronic noise. The response of new microdosimeters should be compared to that of a TEPC.