Cerium-activated Gd2SiO5 single crystal scintillator

Takagi, Kazumasa; Fukazawa, T.

doi:10.1063/1.93760

Cited by 365 publications

(110 citation statements)

References 8 publications

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“…The scintillating crystal GSO (Gd 2 SiO 5 (Ce)), where gadolinium is 74.4% by weight, was first developed in the 1980's [9]. It is an attractive technology to realize an active detector based on gadolinium.…”

Section: Introductionmentioning

confidence: 99%

Measurement of intrinsic radioactivity in a GSO crystal

Wang

Wong

Fujiwara

2002

Nuclear Instruments and Methods in Physics Research Section A:

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Scintillating crystal detectors offer potential advantages in low-energy low-background experiments for particle physics and astrophysics. The GSO crystal is an interesting detector to explore for future neutrino physics experiments. The contributions to background due to the various channels of intrinsic radio-isotopes from the 232 Th and 238 U series are identified and studied with time-correlation analysis and detailed fits to the spectral shape. Good agreement is achieved between measured and simulated spectra, indicating background suppression factors to the 10 −2 − 10 −3 level are possible. The procedures can be adopted for background understanding and suppression in other low-count-rate experiments where the dominant source of background is from internal radioactivity. Based on 1656 hours of data taking, limits on the double beta decay half-life for the various channels in 160 Gd are derived. The limits for the neutrinoless and the Majoron modes are > 3.0(1.9) × 10 19 y, respectively, at 68(90)% confidence level.

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Section: Introductionmentioning

confidence: 99%

Measurement of intrinsic radioactivity in a GSO crystal

Wang

Wong

Fujiwara

2002

Nuclear Instruments and Methods in Physics Research Section A:

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“…N the last decade, mass production capabilities of the Gadolinium Orthosilicate (Gd SiO , GSO) [1], lutetium oxyorthosilicate (Lu SiO , LSO) [2] and lutetium-yttrium oxyorthosilicate (Lu Y SiO , LYSO) [3], [4] crystals have been established for the medical industries. Because of their high stopping power and fast bright scintillation, LSO and LYSO crystal scintillators have also attracted broad interest in the high energy physics community for future experiments, such as a super B factory [5] and the international linear collider (ILC) [6].…”

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confidence: 99%

Large Size LSO and LYSO Crystals for Future High Energy Physics Experiments

Chen

Mao

Zhang

et al. 2007

IEEE Trans. Nucl. Sci.

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Abstract-Following our previous studies, a further investigation on three long (2.5 2.5 20 cm 3 ) LSO and LYSO crystal samples was carried out, and was compared to a long BGO sample of the same size. The optical and scintillation properties, including transmittance, photo-luminescence and excitation spectra, were measured. The result of light output and light response uniformity, measured by using both PMT and APD, are reported. Their applications in future high energy physics experiments are discussed.Index Terms-Crystal, light output, lutetium oxyorthosilicate, lutetium yttrium oxyorthosilicate, photo luminescence, radiation damage, scintillator, transmission.

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“…Multiple quantum wells hybrid structures, where semiconducting PbI 4 layers are alternated with organic insulating ones, have shown superfast efficient luminescence (390 ps) due to excitonic superradiance and quantum confinement effect which might allow them to be used as ultra-fast scintillators (Shibuya et al, 2004). Scintillation properties of the Ce-doped rare-earth orthosilicates were mentioned for the first time in early 1980s in the study dealing with the Gd 2 SiO 5 :Ce (GSO) (Takagi et al, 1983). Following studies concerned mainly Lu 2 SiO 5 :Ce (LSO) (Suzuki et al, 1992) and mixed Lu 2-203 x Y x SiO 5 :Ce (LYSO) (Cooke et al, 2000) which became materials of choice for PET imaging in medicine.…”

Section: Introductionmentioning

confidence: 99%