Abstract
On July 24, 1984 the head of the reactor pressure vessel of Three Mile Island Unit 2 was successfully removed. This major milestone comes after the successful refurbishment and load tests of the polar crane in February 1984. The polar crane was the only apparatus available to remove the 159.5-ton reactor pressure vessel head to its shielded storage stand. Prior to head removal, valuable data on the damaged reactor core was obtained using sonar and remote video techniques and also solid state track recorders. Data was also taken both before and after the head removal to assess the impact on the radiological environment. Indications are that generally dose rates in the containment have dropped.
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References
GPUNC Technical- Planning Department, Data Report on Underhead Data Acquisition Program, TP0/TMI-110, Revision 0, March 1984, Section 2.0.
GPUNC Technical Planning Department, Data Report on Dose Modeling of Underhead Source, TP0/TMI-042, Revision 1, December 1983.
N. L. Osgood, W. C. Hopkins, H. K. Peterson, “Analysis of Radiation Measurements Taken Inside the TMI-2 Reactor Vessel,” Paper No. 340, 29th Annual Meeting of the Health Physics Society, June 3–8, 1984, New Orleans, LA.
TP0/TMI-110, op. cit., Section 4.0.
TP0/TMI-110, op. cit., Section 9.0.
TMI-2 TAAG Meeting of October 31 and November 1, 1983, “Reactor Cavity Neutron Flux Measurements—SSTR Results,” Westinghouse Hanford Company (HEDL).
TP0-TMI-110, op. cit., Section 11.0.
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© 1985 Springer Science+Business Media Dordrecht
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Freemerman, R.L., Hopkins, W.C., Rider, R.L. (1985). Status of Recovery — Three Mile Island Unit 2 Reactor Head Removal. In: Genthon, J.P., Röttger, H. (eds) Reactor Dosimetry. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9726-0_41
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DOI: https://doi.org/10.1007/978-94-010-9726-0_41
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