A high performance peak-detect and hold circuit for pulse height analysis

Conference · Sat Aug 01 00:00:00 EDT 1992 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6704456

Buckens, P F; Veatch, M S ^[1]

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1. Kevex Instruments Inc., San Carlos, CA (United States)

This paper reports on peak extractor circuits, an important link in most pulse-height analysis systems. Their performance will affect peak broadening, throughput, integral and differential linearity. a novel architecture is presented with performance exceeding previous state-of-the-art designs. A droop rate ranging from 125 [mu]V/[mu]s to [mu]V/[mu]s and a charge injection of 5 mV are reported along with a 2.2 MHz bandwidth, a 38 V/[mu]s slew rate and integral non-linearity of 50 ppm. The low droop rate allows temporary storage of the signal in an analog FIFO with minimal peak broadening suitable for high resolution low energy x-ray analysis. This configuration has been implemented in an ADC system using the new Peak-Detect and Hold circuit architecture. The complete system has a differential linearity of 1.5% at 64K conversion gain, an integral linearity of [+-]0.016%, and an effective conversion time of 1.9 [mu]s for a count rate of 210,000 c/s to the input of a pulse processor producing 3 [mu]s-wide pulses.

• OSTI ID: 6704456
• Report Number(s): CONF-911106-; CODEN: IETNAE
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 39:4; Conference: 1991 Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Santa Fe, NM (United States), 2-9 Nov 1991; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
42 ENGINEERING
X-RAY EMISSION ANALYSIS
ANALOG-TO-DIGITAL CONVERTERS
COMPUTER ARCHITECTURE
DATA PROCESSING
ELECTRONIC CIRCUITS
CHEMICAL ANALYSIS
ELECTRONIC EQUIPMENT
EQUIPMENT
NONDESTRUCTIVE ANALYSIS
PROCESSING
440100* - Radiation Instrumentation
990200 - Mathematics & Computers
426000 - Engineering- Components
Electron Devices & Circuits- (1990-)