Low background Ge(Li) detector gamma-ray spectroscopy system with sample changer

Technical Report · Sun Oct 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/5800280· OSTI ID:5800280

A gamma-ray spectroscopy system used for analysis of volume soil and vegetation samples is described. It can accept samples of up to 2 kg weight and a 970 cm/sup 3/ volume. Its primary use is in the determination of U, Th, /sup 137/Cs, /sup 40/K, and /sup 60/Co in samples obtained during ground truth AMS surveys throughout the country. The system was calibrated using standards from the DOE New Brunswick Laboratory and from the National Bureau of Standards. Detectabilities (at 3sigma) in a 1500-g sample are: 0.28 ppM Th, 0.10 ppM U, 10 pCi /sup 40/K, 1.0 pCi ./sup 137/Cs, and 1.0 pCi of /sup 60/Co.

• Research Organization: EG and G, Inc., Goleta, CA (USA). Energy Measurements Group
• DOE Contract Number: EY-76-C-08-1183
• OSTI ID: 5800280
• Report Number(s): EGG-1183-2383; TRN: 80-002618
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
GAMMA SPECTROMETERS
SENSITIVITY
SPECIFICATIONS
CALIBRATION
ENVIRONMENT
LI-DRIFTED GE DETECTORS
SAMPLING
GE SEMICONDUCTOR DETECTORS
LI-DRIFTED DETECTORS
MEASURING INSTRUMENTS
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SPECTROMETERS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation