A low-noise current-sensitive preamplifier VIEC based on a charge-sensitive preamplifier

被引：0

作者：

Kanno, Ikuo ^{[1
]}

Nishikawa, Junichiro ^{[1
]}

Onabe, Hideaki ^{[2
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Nucl Engn, Nishikyo, Kyoto 6158530, Japan

[2] Raytech Corp, Utsunomiya, Tochigi 3210904, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1047卷

关键词：

Current preamplifier; Charge preamplifier; Low noise; Dynamic range; X-ray computed tomography;

D O I：

10.1016/j.nima.2022.167789

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A low-noise current-sensitive preamplifier VIEC has been developed based on the circuitry of a charge-sensitive preamplifier. In this paper, the dynamic ranges of the VIEC and a conventional current-sensitive preamplifier are measured and compared. A method to increase the dynamic range of the VIEC is described. Using the VIEC with enhanced dynamic range, a computed tomography measurement is performed for a strongly attenuating phantom comprising a 10-cm-diameter acrylic cylinder with a 3-cm-diameter iron rod in the center.

引用

页数：6

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