Positron sensitive scintillation detectors for γ-rays

Y. Nagai; H. Saito; T. Hyodo; H. Uchida; T. Omura

Positron sensitive scintillation detectors for γ-rays

Y. Nagai, H. Saito, T. Hyodo, H. Uchida, T. Omura

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report a development of two types of γ-ray imagers for 2D-ACAR using position sensitive photomultiplier tubes (PS-PMT); (1) a thin Gd₂SiO₅ (GSO) single crystal disc coupled to a PS-PMT, (2) an 2D array of small Bi₄Ge₃O₁₂ (BGO) crystal blocks coupled to a PS-PMT. In the type(1), position resolution is ≈3mm in the central area. An improvement of the performance is observed when a glass ring of the same thickness and the same index of refraction as the scintillator is placed around the scintillator. The type(2) gives higher detection efficiency and position resolution of 2.2mm in the whole sensitive area.

Original language	English
Pages (from-to)	971-974
Number of pages	4
Journal	Materials Science Forum
Volume	175-178
Issue number	pt 2
Publication status	Published - 1995 Jan 1
Externally published	Yes
Event	Proceedings of the 10th International Conference on Positron Annihilation. Part 1 (of 2) - Beijing, China Duration: 1994 May 23 → 1994 May 29

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Positron sensitive scintillation detectors for γ-rays",

abstract = "We report a development of two types of γ-ray imagers for 2D-ACAR using position sensitive photomultiplier tubes (PS-PMT); (1) a thin Gd2SiO5 (GSO) single crystal disc coupled to a PS-PMT, (2) an 2D array of small Bi4Ge3O12 (BGO) crystal blocks coupled to a PS-PMT. In the type(1), position resolution is ≈3mm in the central area. An improvement of the performance is observed when a glass ring of the same thickness and the same index of refraction as the scintillator is placed around the scintillator. The type(2) gives higher detection efficiency and position resolution of 2.2mm in the whole sensitive area.",

author = "Y. Nagai and H. Saito and T. Hyodo and H. Uchida and T. Omura",

year = "1995",

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language = "English",

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journal = "Materials Science Forum",

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publisher = "Trans Tech Publications",

number = "pt 2",

note = "Proceedings of the 10th International Conference on Positron Annihilation. Part 1 (of 2) ; Conference date: 23-05-1994 Through 29-05-1994",

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TY - JOUR

T1 - Positron sensitive scintillation detectors for γ-rays

AU - Nagai, Y.

AU - Saito, H.

AU - Hyodo, T.

AU - Uchida, H.

AU - Omura, T.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - We report a development of two types of γ-ray imagers for 2D-ACAR using position sensitive photomultiplier tubes (PS-PMT); (1) a thin Gd2SiO5 (GSO) single crystal disc coupled to a PS-PMT, (2) an 2D array of small Bi4Ge3O12 (BGO) crystal blocks coupled to a PS-PMT. In the type(1), position resolution is ≈3mm in the central area. An improvement of the performance is observed when a glass ring of the same thickness and the same index of refraction as the scintillator is placed around the scintillator. The type(2) gives higher detection efficiency and position resolution of 2.2mm in the whole sensitive area.

AB - We report a development of two types of γ-ray imagers for 2D-ACAR using position sensitive photomultiplier tubes (PS-PMT); (1) a thin Gd2SiO5 (GSO) single crystal disc coupled to a PS-PMT, (2) an 2D array of small Bi4Ge3O12 (BGO) crystal blocks coupled to a PS-PMT. In the type(1), position resolution is ≈3mm in the central area. An improvement of the performance is observed when a glass ring of the same thickness and the same index of refraction as the scintillator is placed around the scintillator. The type(2) gives higher detection efficiency and position resolution of 2.2mm in the whole sensitive area.

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M3 - Conference article

AN - SCOPUS:0029212024

SN - 0255-5476

VL - 175-178

SP - 971

EP - 974

JO - Materials Science Forum

JF - Materials Science Forum

IS - pt 2

T2 - Proceedings of the 10th International Conference on Positron Annihilation. Part 1 (of 2)

Y2 - 23 May 1994 through 29 May 1994

ER -

Positron sensitive scintillation detectors for γ-rays

Abstract

ASJC Scopus subject areas

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