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Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
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Sensors and Materials, Volume 36, Number 1(2) (2024)
Copyright(C) MYU K.K.
pp. 251-260
S&M3515 Research Paper of Special Issue
https://doi.org/10.18494/SAM4686
Published: January 26, 2024

Energy Spectroscopy for Low-energy Photons Using Diamond Detector Combined with Micro-CMOS Preamplifier [PDF]

Kengo Oda, Junichi H. Kaneko, Daisuke Matsunaga, Takanori Hanada, Tsukasa Mizukoshi, and Shintaro Hirano

(Received October 4, 2023; Accepted January 5, 2024)

Keywords: diamond, radiation detector, low-energy photons, soft X-ray, CMOS preamplifier

To measure soft X-ray energy spectra at room temperature using diamond, we connected a 300-μm-thick single-crystal CVD diamond radiation detector with excellent charge carrier transport properties to a micro–preamplifier fabricated using CMOS technology via Φ97 μm electrodes. We attempted to measure the photon energy spectrum from a few keV to 60 keV at room temperature by reducing the leakage current and the total input capacitance to the preamplifier. The energy resolution for 5.9 keV X-rays from 55Fe was ΔE = (484 ± 10) eV (FWHM).

Corresponding author: Kengo Oda


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Cite this article
Kengo Oda, Junichi H. Kaneko, Daisuke Matsunaga, Takanori Hanada, Tsukasa Mizukoshi, and Shintaro Hirano, Energy Spectroscopy for Low-energy Photons Using Diamond Detector Combined with Micro-CMOS Preamplifier, Sens. Mater., Vol. 36, No. 1, 2024, p. 251-260.



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