Optimization of the Compton camera for measuring prompt gamma rays in boron neutron capture therapy

Gong, Chunhui; Tang, Xiaobin; Shu, Diyun; Yu, Haiyue; Geng, Changran

doi:10.1016/j.apradiso.2017.03.014

Cited by 12 publications

(1 citation statement)

References 21 publications

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“…BNCT-SPECT CZT prototypes with standard pulse processing electronics showed energy resolution >2% at 662 keV [17][18][19]. In order to reduce the limits of the mechanical collimators in BNCT-SPECT systems, in terms of sensitivity and spatial resolution, Compton cameras were also investigated [22][23][24]. This approach, based on the analysis of the kinematics of the Compton scattering, requires scatter/absorber spectrometers with 3-D positioning and timing capabilities.…”

Section: Introductionmentioning

confidence: 99%

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

Abbene

Principato

Buttacavoli

et al. 2022

Sensors

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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).

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