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RESEARCH PRODUCT

Potentialities of High-Resolution 3-D CZT Drift Strip Detectors for Prompt Gamma-Ray Measurements in BNCT

Leonardo AbbeneFabio PrincipatoAntonino ButtacavoliGaetano GerardiManuele BettelliAndrea ZappettiniSaverio AltieriNatalia AuricchioEzio CaroliSilvia ZanettiniNicoletta Protti

subject

Physics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaSettore FIS/01 - Fisica SperimentalePhysics::Medical PhysicsBNCT; CZT detectors; X-ray and gamma-ray detectorsBoron Neutron Capture TherapyCZT detectors; X-ray and gamma-ray detectors; BNCTBiochemistrySettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Atomic and Molecular Physics and OpticsAnalytical ChemistryZincX-ray and gamma-ray detectorsGamma RaysBNCTTelluriumElectrical and Electronic EngineeringInstrumentationCadmiumCZT detectors

description

Recently, new high-resolution cadmium–zinc–telluride (CZT) drift strip detectors for room temperature gamma-ray spectroscopic imaging were developed by our group. The CZT detectors equipped with orthogonal anode/cathode collecting strips, drift strips and dedicated pulse processing allow a detection area of 6 × 20 mm2 and excellent room temperature spectroscopic performance (0.82% FWHM at 661.7 keV). In this work, we investigated the potentialities of these detectors for prompt gamma-ray spectroscopy (PGS) in boron neutron capture therapy (BNCT). The detectors, exploiting the measurement of the 478 keV prompt gamma rays emitted by 94% 7Li nuclides from the 10B(n, α)7Li reaction, are very appealing for the development of single-photon emission computed tomography (SPECT) systems and Compton cameras in BNCT. High-resolution gamma-ray spectra from 10B samples under thermal neutrons were measured at the T.R.I.G.A. Mark II research nuclear reactor of the University of Pavia (Italy).

10.3390/s22041502https://dx.doi.org/10.3390/s22041502