Sensitivity of Silicon Photomultipliers to Direct Gamma Ray Irradiation

Lavelle, C. M.; Raimi-Zlatic, D.; Kalter, J.; Chiang, Cheng‐Ta; Haard, T.; Fisher, Brian M.

doi:10.1109/tns.2019.2955636

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Recently, the response of SiPMs exposed to ionizing particles has been studied to investigate the prospects to employ SiPMs as ionizing radiation detectors. Encouraging results have been obtained by exposing SiPMs to radioactive sources [4,5] and to low intensity ion beams [6], showing that they are sensitive to the passage of single low energy particles (β rays) and to protons and ions produced at accelerators. The concept of a particle tracking detector based on a two-dimensional array of stacked SPADs or SiPMs has also been investigated [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Direct detection of long-duration intense X-ray fluxes with SiPM

et al. 2020

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In standard applications Silicon Photomultipliers (SiPMs) are usually used for the detection of photons in the infrared to near-ultra violet range or coupled to scintillators to detect higher energy photons or charged perticles. In this work we demonstrate that SiPMs can be used in current mode, measuring the SiPM DC current, to directly detect with high precision long and intense X-ray fluxes in the energy range ∼ 3 ÷ 15 keV . The response factor of the SiPM to X-rays has been determined and the intrinsic saturation current estimated. Furthermore the attenuation length of X-rays in air has been measured exposing the SiPM to a X-ray flux, confirming the validity of the methods. These results indicate that the SiPM device can in principle be calibrated to perform real time measurements in a high intensity X-ray flux environment and that the SiPM DC current is a potential dosimetric variable for online monitoring of X-ray fluxes.

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