学術雑誌論文

学術雑誌論文

text

Radiation Measurements. 2025, 189, p. 107538

Utilizing the coincidence and anti-coincidence counting of crosstalk events to enhance measurement accuracy in BNCT-SPECT

Elsevier Ltd

英語

text

2025-10-24

https://doi.org/10.1016/j.radmeas.2025.107538

Fujiwara Y., Miyagawa M., Yagura M., et al. Utilizing the coincidence and anti-coincidence counting of crosstalk events to enhance measurement accuracy in BNCT-SPECT. Radiation Measurements 189, 107538 (2025); https://doi.org/10.1016/j.radmeas.2025.107538.

Single Photon Emission Computed Tomography (SPECT) in Boron Neutron Capture Therapy (BNCT) plays a vital role in real-time monitoring of treatment effects. However, image quality can be degraded by background noise. We propose a novel noise-reduction technique that utilizes both coincidence and anti-coincidence counting methods, leveraging the crosstalk phenomenon between adjacent scintillators. To evaluate the feasibility of this approach, we measured γ-ray spectra from a¹³⁷Cs standard source using two GAGG scintillators. The results showed noise reduction improvements of 15.9 % with coincidence and 3.8 % with anti-coincidence methods. Additionally, theoretical analysis demonstrated that this approach is effective in multiple scintillators arranged by the forward nature of Compton Scattering. This approach offers a promising path toward improving BNCT-SPECT imaging quality by effectively discriminating target signals from noise in high-density detector arrays.

This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

103513

Utilizing the coincidence and anti-coincidence counting of crosstalk events to enhance measurement accuracy in BNCT-SPECT

Elsevier Ltd

英語

2025-10-24

Radiation Measurements

189

107538

https://doi.org/10.1016/j.radmeas.2025.107538

https://hdl.handle.net/11094/103513