Ultra-Low Noise Charge Sensitive Preamplifier for Scintillation Detection with Avalanche Photodiodes in PET Applications

Author

Schmitt, D. ; Lecomte, R. ; Lapointe, M. ; Martel, C. ; Carrier, C. ; Karuta, B. ; Duval, F.

Author_Institution

Dept. of Nuclear Medicine and Radiobiology, Univ. of Sherbrooke, Sherbrooke, Qc, Canada and Dept. of Electrical Engineering, Univ. of Sherbrooke, Sherbrooke, Qc, Canada

Volume

34

Issue

1

fYear

1987

Firstpage

91

Lastpage

96

Abstract

The need for compact, fast, low-noise front-end electronics in high resolution positron emission tomography (PET) has prompted this effort to design a preamplifier suitable for avalanche photodiode-based scintillation detectors. Due to the small signals from the detectors (< .03 pC/MeV), a preamplifier with ultra-low noise performance in the 5 to 20 MHz range is essential to achieve the timing resolution required by the PET application. Out of many available technologies, a new third generation MOSFET wqas selected and implemented as input transistor in an original charge sensitive (CSP) design. Performance among the best reported to date are obtained. The new design was implemented as a dual-channel preamplifier in high density hybrid (thick film) technology.

Keywords

Avalanche photodiodes; MOSFET circuits; Positron emission tomography; Preamplifiers; Scintillation counters; Signal detection; Signal resolution; Solid scintillation detectors; Thick films; Timing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.1987.4337308

Filename

4337308