GaAs pixel arrays for β imaging in medicine and biology

被引：14

作者：

Abate, L

Bertolucci, E

Conti, M

Mettivier, G

Montesi, MC

Russo, P

机构：

[1] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

[2] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 460卷 / 01期

关键词：

autoradiography; beta imaging; pixel detectors; GaAs;

D O I：

10.1016/S0168-9002(00)01102-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present an autoradiography system (BETAview) for a quantitative analysis of radioactive markers in biological samples; this system is also able to monitor a dynamic process. It is based on a solid-state pixel array detector, bump bonded to low threshold, integrated electronics developed for medical applications (Medipix). The present assembly is equipped with a 200 mum thick GaAs square detector, about 1 cm side, segmented into 64 x 64 170-mum size square pixels; simulation and experimental studies show good linearity and high sensitivity to beta sources. Imaging tests with beta sources of medical and biological interest such as C-14, S-35, P-32 reported. (C) 2001 Published by Elsevier Science B.V.

引用

页码：97 / 106

页数：10

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