Laboratory evaluation of the Pipe Explorer{trademark} gamma measurement and deployment capability

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Description

The DOE is faced with the responsibility of decommissioning and dismantling many of its nuclear process facilities. Much of this will involve piping systems which may or may not be contaminated with radioactive material. It is important to be able to differentiate contaminated from non-contaminated material, since the disposal costs for radioactive waste are significant (on the order of hundreds of dollars per cubic foot). In the case of pipes, this determination may be particularly difficult if the pipes are not easily accessible. As a solution to this problem, SEA is developing an inverting membrane technology, called Pipe Explorer{trademark} which ... continued below

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46 p.

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Cremer, C.D.; Cramer, E. & Lowry, W. August 1, 1994.

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Description

The DOE is faced with the responsibility of decommissioning and dismantling many of its nuclear process facilities. Much of this will involve piping systems which may or may not be contaminated with radioactive material. It is important to be able to differentiate contaminated from non-contaminated material, since the disposal costs for radioactive waste are significant (on the order of hundreds of dollars per cubic foot). In the case of pipes, this determination may be particularly difficult if the pipes are not easily accessible. As a solution to this problem, SEA is developing an inverting membrane technology, called Pipe Explorer{trademark} which uses commercial gamma spectroscopy systems to characterize the radiation levels inside of pipes. The heart of the system is an air-tight membrane which is initially spooled inside of a canister. The end of the membrane protruding out of the canister is folded over and attached to a basepipe. With this configuration, when the canister becomes pressurized the pressure force on the membrane causes the membrane to be pulled from the spool. This continues until the membrane is completely off the spool. A radiation detector is attached to the end of the membrane and towed into the pipe as the membrane continues to evert. The detector cabling is also towed into the pipe. To retrieve the system from a pipe the process is simply reversed, where the cabling, detector, and membrane are wound back onto the spool. The system can thus be used to move a detector freely back and forth through a pipe to provide high resolution analysis of the location of radioactive contamination in pipes. This unique method can deploy the detector and analyze piping systems with multiple elbows and vertical runs. The membrane also serves to protect the expensive detector from contamination.

Physical Description

46 p.

Notes

INIS; OSTI as DE97005414

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  • Other Information: PBD: Aug 1994

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Identifier

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  • Other: DE97005414
  • Report No.: DOE/MC/30172--5688
  • Report No.: SEASF-TR--94-005
  • Grant Number: AC21-93MC30172
  • DOI: 10.2172/650178 | External Link
  • Office of Scientific & Technical Information Report Number: 650178
  • Archival Resource Key: ark:/67531/metadc711400

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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

  • August 1, 1994

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • June 13, 2016, 8:08 p.m.

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Cremer, C.D.; Cramer, E. & Lowry, W. Laboratory evaluation of the Pipe Explorer{trademark} gamma measurement and deployment capability, report, August 1, 1994; United States. (digital.library.unt.edu/ark:/67531/metadc711400/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.