In Plant Measurement and Analysis of Mixtures of Uranium and Plutonium TRU-Waste Using a {sup 252}Cf Shuffler Instrument
The active-passive {sup 252}Cf shuffler instrument, installed and certified several years ago in Los Alamos National Laboratory's plutonium facility, has now been calibrated for different matrices to measure Waste Isolation Pilot Plant (WIPP)-destined transuranic (TRU)-waste. Little or no data currently exist for these types of measurements in plant environments where sudden large changes in the neutron background radiation can significantly distort the results. Measurements and analyses of twenty-two 55-gallon drums, consisting of mixtures of varying quantities of uranium and plutonium in mostly noncombustible matrices, have been recently completed at the plutonium facility. The calibration and measurement techniques, including the method used to separate out the plutonium component, will be presented and discussed. Calculations used to adjust for differences in uranium enrichment from that of the calibration standards will be shown. Methods used to determine various sources of both random and systematic error will be indicated. Particular attention will be directed to those problems identified as arising from the plant environment. The results of studies to quantify the aforementioned distortion effects in the data will be presented. Various solution scenarios will be outlined, along with those adopted here.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 762828
- Report Number(s):
- LA-UR-98-4347; TRN: US0100612
- Resource Relation:
- Conference: SPIE International Symposium on Industrial and Environmental Monitors and Biosensors, Boston, MA (US), 11/02/1998--11/05/1998; Other Information: This paper also presented at the 6th Nondestructive Assay of Waste Characterization, Salt Lake City, UT, (US), 11/17/1998--11/19/1998; PBD: 2 Nov 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
Challenges using a {sup 252}Cf shuffler instrument in a plant environment to measure mixtures of uranium and plutonium transuranic waste
Shuffler calibration and measurement of mixtures of uranium and plutonium TRU-waste in a plant environment
Related Subjects
BACKGROUND RADIATION
CALIBRATION
CALIBRATION STANDARDS
MATRICES
MIXTURES
MONITORS
NEUTRONS
PLUTONIUM
URANIUM
WIPP
252Cf shuffler
transuranic (TRU)-waste
55-gallon drums
uranium-plutonium mixtures
matrix calibrations
background radiation
enrichment calculations