Energy and electron drift time measurements in a pixel CCI TlBr detector with 1.3 MeV prompt-gammas.

ABSTRACT: Assessing the position of the Bragg peak (BP) in hadron radiotherapy utilizing prompt-gamma imaging (PGI) presents many challenges in terms of detector physics. Gamma detectors with the capability of extracting the best energy, timing, and spatial information from each gamma interaction, as well as with high detection efficiency and count rate performance, are needed for this application. In this work we present the characterization of a pixel Čerenkov charge induction (CCI) thallium bromide (TlBr) detector in terms of energy and and electron drift time for its potential use in PGI. The CCI TlBr detector had dimensions of 4 × 4 × 5 mm³ and one of its electrodes was segmented in pixels with 1.7 mm pitch. A silicon photomultiplier (SiPM) was optically coupled to one of the faces o

SUBMITTER: Arino-Estrada G 

PROVIDER: S-EPMC9020464 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature