An Ultra Low Noise, Low Power Hybrid Preamplifier for X-Ray Spectrometry

A hybrid preamplifier for use with high resolution HgI2 x-ray detectors has been developed. Full scale discrete component circuits were tested, and the final design was hybridized as a standard 20-pin dip package. The preamplifier can be configured to operate as a resistor or pulsed feedback mode de...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on nuclear science 1987-02, Vol.34 (1), p.124-126
Main Authors: Iwanczyk, J. S., Dabrowski, A. J., Dancy, B. W., Patt, B. E., DeVore, T. M., Del Duca, A., Ortale, C., Schnepple, W. F., Barksdale, J. E., Thompson, T. J.
Format: Article
Language:English
Subjects:
Circuit noise
Circuit testing
Electronics packaging
Electrons
Feedback
Preamplifiers
Pulse measurements
Resistors
Spectroscopy
X-ray detectors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A hybrid preamplifier for use with high resolution HgI2 x-ray detectors has been developed. Full scale discrete component circuits were tested, and the final design was hybridized as a standard 20-pin dip package. The preamplifier can be configured to operate as a resistor or pulsed feedback mode device. In the pulsed light feedback mode the electronic noise measured by the pulser method with the input transistor cooled to approximately -30°C was 19.6 electrons RMS. The equivalent input noise at room temperature was 22 electrons RMS, and the power consumption was 220 mW. In the resistor feedback mode corresponding values of 30 electrons RMS and 200 mW were measured.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.1987.4337314