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Title: High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks

Abstract

The cleanup of high level defense nuclear waste at the Hanford site presents several progressive challenges. Among these is the removal and disposal of various components from buried active waste tanks to allow new equipment insertion or hazards mitigation. A unique automated retrieval system at the tank provides for retrieval, high pressure washing, inventory measurement, and containment for disposal. Key to the inventory measurement is a three detector HPGe high performance gamma spectroscopy system capable of recovering data at up to 90% saturation (200,000 counts per second). Data recovery is based on a unique embedded electronic pulser and specialized software to report the inventory. Each of the detectors have different shielding specified through Monte Carlo simulation with the MCNP program. This shielding provides performance over a dynamic range of eight orders of magnitude. System description, calibration issues and operational experiences are discussed.

Authors:
Publication Date:
Sponsoring Org.:
USDOE Office of Environmental Restoration and Waste Management, Washington, DC (US)
OSTI Identifier:
16924
Report Number(s):
HNF-SA-3137-FP; ON: DE98059770; BR: EW3120071
ON: DE98059770; BR: EW3120071; TRN: US0111116
DOE Contract Number:  
AC06-96RL13200
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 17 Mar 1997; Supercedes report DE98059770; PBD: 17 Mar 1997
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; STORAGE FACILITIES; HIGH-LEVEL RADIOACTIVE WASTES; RADIOACTIVE WASTE STORAGE; REMOTE HANDLING EQUIPMENT; GAMMA SPECTROSCOPY; REMEDIAL ACTION; HANFORD RESERVATION; HIGH-PURITY GE DETECTORS; DESIGN; CALIBRATION

Citation Formats

Troyer, G.L. High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks. United States: N. p., 1997. Web. doi:10.2172/16924.
Troyer, G.L. High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks. United States. doi:10.2172/16924.
Troyer, G.L. Mon . "High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks". United States. doi:10.2172/16924. https://www.osti.gov/servlets/purl/16924.
@article{osti_16924,
title = {High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks},
author = {Troyer, G.L.},
abstractNote = {The cleanup of high level defense nuclear waste at the Hanford site presents several progressive challenges. Among these is the removal and disposal of various components from buried active waste tanks to allow new equipment insertion or hazards mitigation. A unique automated retrieval system at the tank provides for retrieval, high pressure washing, inventory measurement, and containment for disposal. Key to the inventory measurement is a three detector HPGe high performance gamma spectroscopy system capable of recovering data at up to 90% saturation (200,000 counts per second). Data recovery is based on a unique embedded electronic pulser and specialized software to report the inventory. Each of the detectors have different shielding specified through Monte Carlo simulation with the MCNP program. This shielding provides performance over a dynamic range of eight orders of magnitude. System description, calibration issues and operational experiences are discussed.},
doi = {10.2172/16924},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {3}
}