Toward a Medipix2 coded aperture gamma microscope

被引：0

作者：

Accorsi, R ^{[1
]}

Autiero, M ^{[1
]}

Celentano, L ^{[1
]}

Laccetti, P ^{[1
]}

Lanza, RC ^{[1
]}

Marotta, M ^{[1
]}

Mettivier, G ^{[1
]}

Montesi, MC ^{[1
]}

Riccio, P ^{[1
]}

Roberti, G ^{[1
]}

Russo, P ^{[1
]}

机构：

[1] Childrens Hosp Philadelphia, Dept Radiol, Philadelphia, PA 19104 USA

来源：

2004 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-7 | 2004年

关键词：

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

We report on tests of a radionuclide imaging system for in vivo investigations in small animals with low energy gamma-rays as from I-125 (27-35 keV). The system imaging optics features a high resolution coded aperture mask and a fine pitch silicon hybrid pixel detector of the Medipix2 series (55 mu m pitch). The coded aperture (no-two-holes-touching MURA 62x62) had 70 pm holes in 75 pm tungsten, and was used in a 2:1 magnification for a Field of View of about 7 mm. Laboratory tests with a Cd-109 22-keV source and in vivo mouse thyroid imaging tests with I-125 show a system resolution of about 110 mu m. This low energy, semiconductor-based, compact gamma camera is the basic imaging unit of a small animal Single Photon Emission Computed Tomography system with deep sub-millimeter resolution.

引用

页码：2461 / 2464

页数：4

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