The TMI-2 (Three Mile Island Unit 2) reactor building gross decontamination experiment: Effects on loose-surface contamination levels
In March 1982, the Gross Decontamination Experiment was conducted in the Three Mile Island Unit 2 (TMI-2) reactor building. The intent of the experiment was twofold: (a) to determine which of several commonly used decontamination techniques would be the most efficient at reducing contamination levels on vertical and horizontal surfaces and (b) to actually reduce radiation and surface contamination levels in the accessible areas of the reactor building in order to reduce person-rem expenditures for future entries. Accessible areas included the entire reactor building except inside the D-rings, inside the enclosed stairwell, and elevation 282 ft. The experiment was broken into six separate tasks, implemented by nine different work packages, and accomplished during 15 reactor building entries over a 30-day period. Approximately 40 person-rem were expended in completing the experiment. While the results of the experiment did show which decontamination techniques were the most effective, loose-surface contamination and radiation levels in the reactor building were not substantially reduced. The decontamination techniques tested and the key test parameters are shown.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- OSTI ID:
- 5684573
- Report Number(s):
- CONF-881011-
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Journal Name: Trans. Am. Nucl. Soc.; (United States) Vol. 57; ISSN TANSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Surface deposition measurements of the TMI-2 gross decontamination experiment
Three mile island unit 2 postaccident reactor building entry program
Related Subjects
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ADDITIVES
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
AQUEOUS SOLUTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BUILDINGS
CESIUM 134
CESIUM 137
CESIUM ISOTOPES
CLEANING
COATINGS
CONTAINMENT
CONTAINMENT BUILDINGS
CONTAMINATION
CORIUM
CORROSION PRODUCTS
DATA ACQUISITION
DAYS LIVING RADIOISOTOPES
DECONTAMINATION
DETERGENTS
DISPERSIONS
DOSES
EMULSIFIERS
ENRICHED URANIUM REACTORS
EVEN-EVEN NUCLEI
FLOORS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LOSS OF COOLANT
MELTDOWN
MIXTURES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
POWER REACTORS
PWR TYPE REACTORS
RADIATION DOSES
RADIATION PROTECTION
RADIOISOTOPES
REACTOR ACCIDENTS
REACTOR CORE DISRUPTION
REACTORS
SCRUBBING
SOLUTIONS
SPRAYS
STRONTIUM 90
STRONTIUM ISOTOPES
SURFACE CONTAMINATION
SURFACTANTS
THERMAL REACTORS
THREE MILE ISLAND-2 REACTOR
VACUUM SYSTEMS
WATER COOLED REACTORS
WATER MODERATED REACTORS
WETTING AGENTS
YEARS LIVING RADIOISOTOPES
YTTRIUM 90
YTTRIUM ISOTOPES