Semiconductor x-ray spectrometer system type 454
The Type 454 semiconductor detector x-ray spectrometer provides a resolution of 220 eV FWHM for the Fe K/sub alpha / x-ray line at count rates up to 10/sup 4/ pulses per second, and is suitable for the enengy range 4 to 60 keV. The preamplifier uses the pulsed optical feedback technique and a remounted input field effect transistor which operates at 130 K. The detectors are fabricated from commercially available hyper-pure n-type silicon and do not suffer from the carrier trapping effects exhibited by some lithium drift compensated silicon detectors at temperatures approaching 77 K. The high initial cost of this material is offset by savings in manufacturing time and in the cost of the sophisticated equipment required for lithium drift compensation of p-type silicon. (auth)
- Research Organization:
- Australian Atomic Energy Commission Research Establishment, Lucas Heights
- Sponsoring Organization:
- Sponsor not identified
- NSA Number:
- NSA-29-018470
- OSTI ID:
- 4937462
- Report Number(s):
- AAEC/E--297
- Country of Publication:
- Australia
- Language:
- English
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COMMERCIALLY AVAILABLE SEMICONDUCTOR DETECTORS AND PREAMPLIFIERS
Related Subjects
CRYOSTATS
DOPED MATERIALS
ENERGY RESOLUTION
FABRICATION
GOLD
KEV RANGE 10-100
N46130* --Instrumentation--Radiation Detection Instruments-- Nuclear Spectroscopic Instrumentation
OPERATION
OPTIMIZATION
PERFORMANCE
PREAMPLIFIERS
SEALS
SI SEMICONDUCTOR DETECTORS
SILICON
SPECIFICATIONS
SURFACE BARRIER DETECTORS- - FABRICATION
VERY LOW TEMPERATURE
X-RAY DETECTION
X-RAY SPECTROMETERS