High-photon-yield scintillation detector with Ar/CF4 and glass gas electron multiplier

The glass made gas electron multiplier (GEM) and Ar/CF4-gas-based gaseous detector is developed as a scintillation detector and ultra high photon yield is demonstrated. The light yield of a glass GEM (G-GEM)-based gaseous detector is estimated to be 85,000 photons/keV, which is three orders of magni...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2016-10, Vol.55 (10)
Main Authors: Fujiwara, Takeshi, Mitsuya, Yuki, Yanagida, Takayuki, Saito, Takumi, Toyokawa, Hiroyuki, Takahashi, Hiroyuki
Format: Article
Language:English
Online Access:Get full text
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Summary:The glass made gas electron multiplier (GEM) and Ar/CF4-gas-based gaseous detector is developed as a scintillation detector and ultra high photon yield is demonstrated. The light yield of a glass GEM (G-GEM)-based gaseous detector is estimated to be 85,000 photons/keV, which is three orders of magnitude brighter than inorganic scintillators. The radioluminescence spectrum peak appeared at around 620 nm, which matches the spectral response of commonly used photosensors such as photomultiplier tubes, photodiodes, CMOSs, CCDs, and other photo-sensors. In X-ray spectroscopy, the light yield showed excellent proportionality and the device was successfully operated as a gas proportional scintillation counter. With this design, we obtained a high photon yield of the G-GEM, which has the further advantage of being much more sensitive to low-energy radiation than solid-scintillator-based detectors.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.55.106401