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

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Description

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 ... continued below

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15 p.

Creation Information

Troyer, G.L. March 17, 1997.

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Description

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.

Physical Description

15 p.

Notes

INIS; OSTI as DE00016924

Medium: P; Size: 15 pages

Source

  • Other Information: PBD: 17 Mar 1997; Supercedes report DE98059770

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  • Other: DE98059770
  • Report No.: HNF-SA--3137-FP
  • Report No.: ON: DE98059770
  • Report No.: BR: EW3120071
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/16924 | External Link
  • Office of Scientific & Technical Information Report Number: 16924
  • Archival Resource Key: ark:/67531/metadc621200

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • March 17, 1997

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • April 7, 2017, 2:59 p.m.

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Troyer, G.L. High performance gamma measurements of equipment retrieved from Hanford high-level nuclear waste tanks, report, March 17, 1997; (digital.library.unt.edu/ark:/67531/metadc621200/: accessed January 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.