Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit
Abstract
A low noise, low power consumption, compact, ambient temperature signal amplifier for a Cadmium Zinc Telluride (CZT) radiation detector is disclosed. The amplifier can be used within a larger system (e.g., including a multi-channel analyzer) to allow isotopic analysis of radionuclides in the field. In one embodiment, the circuit stages of the low power, low noise amplifier are constructed using integrated circuit (IC) amplifiers , rather than discrete components, and include a very low noise, high gain, high bandwidth dual part preamplification stage, an amplification stage, and an filter stage. The low noise, low power consumption, compact, ambient temperature amplifier enables the CZT detector to achieve both the efficiency required to determine the presence of radionuclides and the resolution necessary to perform isotopic analysis to perform nuclear material identification. The present low noise, low power, compact, ambient temperature amplifier enables a CZT detector to achieve resolution of less than 3% full width at half maximum at 122 keV for a Cobalt-57 isotope source. By using IC circuits and using only a single 12 volt supply and ground, the novel amplifier provides significant power savings and is well suited for prolonged portable in-field use and does not require heavy, bulky powermore »
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 644396
- Patent Number(s):
- 5757227
- Application Number:
- PAN: 8-689,447; TRN: 98:007949
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 26 May 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; AMBIENT TEMPERATURE; AMPLIFIERS; CDTE SEMICONDUCTOR DETECTORS; RADIOISOTOPES; ISOTOPE RATIO; INTEGRATED CIRCUITS; POWER SUPPLIES; PORTABLE EQUIPMENT
Citation Formats
McQuaid, J H, and Lavietes, A D. Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit. United States: N. p., 1998.
Web.
McQuaid, J H, & Lavietes, A D. Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit. United States.
McQuaid, J H, and Lavietes, A D. Tue .
"Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit". United States.
@article{osti_644396,
title = {Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit},
author = {McQuaid, J H and Lavietes, A D},
abstractNote = {A low noise, low power consumption, compact, ambient temperature signal amplifier for a Cadmium Zinc Telluride (CZT) radiation detector is disclosed. The amplifier can be used within a larger system (e.g., including a multi-channel analyzer) to allow isotopic analysis of radionuclides in the field. In one embodiment, the circuit stages of the low power, low noise amplifier are constructed using integrated circuit (IC) amplifiers , rather than discrete components, and include a very low noise, high gain, high bandwidth dual part preamplification stage, an amplification stage, and an filter stage. The low noise, low power consumption, compact, ambient temperature amplifier enables the CZT detector to achieve both the efficiency required to determine the presence of radionuclides and the resolution necessary to perform isotopic analysis to perform nuclear material identification. The present low noise, low power, compact, ambient temperature amplifier enables a CZT detector to achieve resolution of less than 3% full width at half maximum at 122 keV for a Cobalt-57 isotope source. By using IC circuits and using only a single 12 volt supply and ground, the novel amplifier provides significant power savings and is well suited for prolonged portable in-field use and does not require heavy, bulky power supply components. 9 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 26 00:00:00 EDT 1998},
month = {Tue May 26 00:00:00 EDT 1998}
}