Inflatable radiological inspection tool for nuclear reactors
Creators
Description
An inflatable radiological underwater inspection tool for nuclear reactors, and in particular for the radiological inspection of reactor vessel nozzle to safe-end welds is discussed. The tool is constructed of a water-tight housing and an inflatable bladder to be used in displacing reactor coolant from the operating vicinity of the radiation path of a panoramic iridium source. With the inspection tool properly centered within the reactor vessel nozzle and with radiographic plates fastened around the outside diameter of the nozzle to safe-end weld, the bladder is pressurized and the iridium source is dispensed to the housing from a remote shielded location. After exposure, the radiographic plates, in the nature of film cassettes, are removed and interpreted for detecting defects in the weld volume
Availability note (English)
Available from the Patents Office, Private Bag X400, Pretoria, 0001, South Africa.Additional details
Publishing Information
- Imprint Pagination
- 18 p.
- IPC:
- Int. Cl. G 01 N.
- IPC
- Int. Cl. G 01 N.
- Patent number
- ZA patent document 85/5330/A/
INIS
- Country of Publication
- South Africa
- Country of Input or Organization
- South Africa
- INIS RN
- 17040069
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- COOLANTS; DEFECTS; INDUSTRIAL RADIOGRAPHY; INSPECTION; IRIDIUM; NOZZLES; PERFORMANCE TESTING; RADIATION SOURCES; REACTOR VESSELS; REACTORS; UNDERWATER; WELDED JOINTS
- Descriptors DEC
- CONTAINERS; ELEMENTS; JOINTS; LEVELS; MATERIALS TESTING; METALS; NONDESTRUCTIVE TESTING; PLATINUM METALS; TESTING; TRANSITION ELEMENTS
Optional Information
- Secondary number(s)
- US priority 638,330.