| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Enoto, Teruaki
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2017Soft Gamma-ray Observation of SN2014J with Suzaku
- 2013Spectral Variation of Hard X-Ray Emission from the Crab Nebula with the Suzaku Hard X-Ray Detectorcitations
- 2012Possible Detection of an Emission Cyclotron Resonance Scattering Feature from the Accretion-powered Pulsar 4U 1626-67citations
- 2012The Hard X-ray Imager (HXI) for the ASTRO-H missioncitations
- 2012Spectral comparison of weak short bursts to the persistent X-rays from the magnetar 1E 1547.0-5408 in its 2009 outburstcitations
- 2011Improvements in Calibration of GSO Scintillators in the Suzaku Hard X-Ray Detectorcitations
- 2010Hard x-ray imager (HXI) for the ASTRO-H Missioncitations
- 2008In-Orbit Timing Calibration of the Hard X-Ray Detector on Board Suzakucitations
- 2007Improvement of ceramic YAG(Ce) scintillators to (YGd) <SUB>3</SUB>Al <SUB>5</SUB>O <SUB>12</SUB>(Ce) for gamma-ray detectorscitations
Places of action
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article
Improvement of ceramic YAG(Ce) scintillators to (YGd) <SUB>3</SUB>Al <SUB>5</SUB>O <SUB>12</SUB>(Ce) for gamma-ray detectors
Abstract
Based on our successful development of ceramic Y <SUB>3</SUB>Al <SUB>5</SUB>O <SUB>12</SUB>(Ce) scintillators, we fabricated two samples of (YGd) <SUB>3</SUB>Al <SUB>5</SUB>O <SUB>12</SUB>(Ce) scintillator, to achieve higher stopping power to gamma-rays. They are both activated with Ce to a 0.5 mol% concentration, but differ in sintering conditions. We investigated their optical properties and gamma-ray responses. One of them showed a poor (̃1%) optical transparency at 550 nm, while the other had a much improved (̃20%) transmission. They both showed a dominant decay constant of ̃90 ns, when irradiated with gamma-rays. The more transparent one exhibited light yield which is ̃30% of that of ceramic YAG(Ce), and ̃14% (FWHM) energy resolution at 662 keV when coupled with a phototube. When coupled with an avalanche photo diode, it exhibited ̃8% energy resolution at the same energy. The stopping power of the new ceramics was confirmed to be five times as high as that of YAG(Ce) at ̃660 keV, by counting detected photo-absorption events.