Quantitative waste assay using gamma-ray spectrometry and computed tomography

Conference · Thu May 28 04:00:00 EDT 1992

OSTI ID:10163202

Martz, H E; Roberson, G P; Robert-Coutant, C; Schneberk, D J; Camp, D C

Simulated and real experimental data are used to investigate the use of (1) active computed tomography (ACT) to obtain images of attenuated gamma rays from a waste-canister interior; (2) passive computed tomography (PCT) to locate and determine the radioisotopic sources present; and (3) ACT data to correct PCT data so that accurate radioisotopic source activities can be determined. Active and passive computed tomography (A&PCT) techniques were used to analyze a small container of mock waste. Both simulated and experimental results reveal that ACT scans properly map the canister`s attenuating matrix and, coupled with PCT scans, can yield quantitative source activities.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10163202
• Report Number(s): UCRL-JC--110716; CONF-9205153--5; ON: DE92017440
• Country of Publication: United States
• Language: English

Related Subjects

052002
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
42 ENGINEERING
420204
440103
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ATTENUATION
COMPUTERIZED TOMOGRAPHY
DATA ACQUISITION
GAMMA SPECTRA
GE SEMICONDUCTOR DETECTORS
NUCLEAR SPECTROSCOPIC INSTRUMENTATION
RADIOACTIVE WASTES
RADIOISOTOPE SCANNERS
SHIPPING CONTAINERS
WASTE DISPOSAL AND STORAGE
WASTE FORMS