EXTERNAL RADIATION LEVELS OF REACTOR COOLANT LOOP PIPING AND PURIFICATION DEMINERALIZERS. CORE 1, SEED 3. Test Evaluation

Technical Report · Fri Mar 29 04:00:00 EST 1963

OSTI ID:4684377

In order to determine the buildup of radiation levels near the reactor coolant loop piping and components and inside the purification system demineralizer concrete cubicles, periodic radiation surveys of selected points on these components were performed using portable radiation detection equipment. The data obtained during the tests indicated that the radiation levels of the reactor coolant loops increased with accumulation of effective full power hours during Seed 3 operation. An increase was also observed during Seed 3-Seed 4 refueling and was attributed to crud being dislodged as a result of the reactor plant cooldown and/or the refueling operation, and subsequently being distributed through the system by core removal cooling flow and then normal reactor coolant circulation. The Utube type heat exchangers exhibited higher average radiation levels than the straight tube type heat exchangers. Radiation levels in the vicinity of the purification system demineralizers generally continued to increase with resin service hours. (auth)

• Research Organization: Duquesne Light Co., Shippingport, Penna.
• NSA Number: NSA-17-031724
• OSTI ID: 4684377
• Report Number(s): DLCS-3410117
• Country of Publication: United States
• Language: English

Related Subjects

CONCRETES
COOLANT LOOPS
HEAT EXCHANGERS
MINERALS
OPERATION
PERFORMANCE
POWER PLANTS
RADIATION DETECTORS
RADIATION DOSES
REACTOR FUELING
REACTOR TECHNOLOGY
REPROCESSING
SALTS
VARIATIONS