ANALYSIS OF DOSE RATES DURING REPLACEMENT OF MANIPULATORS IN THE FFTF INTERIM EXAMINATION & MAINTENANCE (IEM) CELL

Technical Report · Wed Jan 23 00:00:00 EST 2002

DOI:https://doi.org/10.2172/820826· OSTI ID:820826

NELSON, J V

Replacement of a master-slave manipulator in the Interim Examination and Maintenance Cell at the Fast Flux Test Facility was carried out in August 2001. This operation created a 178-mm opening in the thick concrete wall of the hot cell. To aid in radiological work planning, dose rates outside the penetration in the wall were predicted using MCNP{trademark} photon transport calculations. The predicted dose rate was 7.7 mrem/h, which was reasonably close to the value of 10.4 mrem/h inferred from measurements.

• Research Organization: Fluor Hanford, Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM) (US)
• DOE Contract Number: AC06-96RL13200
• OSTI ID: 820826
• Report Number(s): HNF-9843-FP, Rev.0; TRN: US0400627
• Resource Relation: Other Information: PBD: 23 Jan 2002
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
CONCRETES
DOSE RATES
FFTF REACTOR
HOT CELLS
MAINTENANCE
MANIPULATORS
OPENINGS
PHOTON TRANSPORT
PLANNING