Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

A 16-channel charge sensitive amplifier IC for a PIN photodiode array based PET detector module

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6951044
; ;  [1]
  1. Lawrence Berkeley Lab., CA (United States)
+ Show Author Affiliations

A 16-channel integrated circuit charge sensitive preamplifier has been developed for a PET detector module that uses an 8 x 8 array of PIN photodiodes to identify the crystal of interaction. The amplifier, which is made using 1.2 [mu]m CMOS technology, produces an output of 100 mV per 1,000 e[sup [minus]] input, and its noise performance is optimized for 10 pF detector capacitance. The rise time, fall time, bias current through the first FET, and detector current compensation are each controlled by a dc current applied to the 2 mm square chip. The Johnson noise (e[sup [minus]] fwhm at 1 [mu]s peaking time) is 173 + 13C, where C is the input capacitance in pF, and the shot noise (e[sup [minus]] fwhm) is 16.4[radical]IT, where 1 is the detector dark current in pA and T is the amplifier shaping time in [mu]s. With this amplifier, the target noise of 300 [sup [minus]] fwhm can nearly be met with 300 [mu]m depletion thickness photodiodes (3 pF, 200 pA per 3 x 3 mm element).

DOE Contract Number:
AC03-76SF00098
OSTI ID:
6951044
Report Number(s):
CONF-931051--
Journal Information:
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 41:4PT1; ISSN 0018-9499; ISSN IETNAE
Country of Publication:
United States
Language:
English

Similar Records

A low-noise, wideband, integrated CMOS transimpedance preamplifier for photodiode applications
Conference · Sat Aug 01 00:00:00 EDT 1992 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:6723091
A compact 64-pixel CsI(T1)/Si PIN photodiode imaging module with IC readout
Journal Article · Thu Aug 09 00:00:00 EDT 2001 · IEEE Transactions on Nuclear Science · OSTI ID:834312
Design studies for a PET detector module using a PIN photodiode to measure depth of interaction
Conference · Mon Aug 01 00:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:6810831

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
AMPLIFIERS
CAMERAS
COMPUTERIZED TOMOGRAPHY
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTRONIC EQUIPMENT
EMISSION COMPUTED TOMOGRAPHY
EQUIPMENT
GAMMA CAMERAS
MEASURING INSTRUMENTS
POSITRON CAMERAS
POSITRON COMPUTED TOMOGRAPHY
PREAMPLIFIERS
RADIATION DETECTORS
RESOLUTION
SPATIAL RESOLUTION
TOMOGRAPHY