Qualification of the In-Situ Object Counting System (ISOCS) for Safeguards Measurements of Nuclear Waste Packages

Conference · Mon Oct 31 23:00:00 EST 2005

OSTI ID:964237

Berg, Randal K; Mapili, Gabriel M; Mozhayev, Andrey V

Canberra’s In-Situ Object Counting System (ISOCS) is a portable and versatile gamma nondestructive assay instrument. ISOCS can perform quantitative measurements for characterization of various packages of waste generated during operation, decontamination and decommissioning of nuclear facilities. This paper presents the measurement results obtained on two ISOCS systems with pre-calibrated germanium detectors. The exercises included measurements of working standards in different surrogate matrices within a 55 gallon drum and within a standard waste box. The different templates used for modeling the waste packages are compared. An approach is presented for using the collected spectra to determine the isotopic composition of nuclear material.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 964237
• Report Number(s): PNNL-SA-45705
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
DECOMMISSIONING
DECONTAMINATION
GE SEMICONDUCTOR DETECTORS
Ge detector
ISOCS
In-Situ Object Counting System
MATRICES
NUCLEAR FACILITIES
NUCLEAR MATERIALS MANAGEMENT
RADIOACTIVE WASTES
SAFEGUARDS
SIMULATION
SPECTRA
Safegaurds
WASTES
gamma measurements
nuclear material
plutonium
waste