Accession Number : AD0615050

Title :   A THULIUM 170 NUCLEAR GAUGE FOR MEASURING SUPERHEATER TUBE WALL-THICKNESS IN A MARINE BOILER,

Corporate Author : PACIFIC NAVAL LAB ESQUIMALT (BRITISH COLUMBIA)

Personal Author(s) : Peters,B. F.

Report Date : 1964

Pagination or Media Count : 6

Abstract : The nuclear gauge consists of a radioisotope which can be applied to the exterior of superheater tubes, and a geiger counter tube which can be inserted into the boiler tubes from the header. A sectional drawing of the arrangement is shown. The principle of the nuclear gauge is based on the absorption of radiation by the steel tube wall; the thicker the tube, the lower the count, and the more wastage, the higher the count.

Descriptors :   (*NONDESTRUCTIVE TESTING, RADIATION MEASURING INSTRUMENTS), (*RADIATION MEASURING INSTRUMENTS, NONDESTRUCTIVE TESTING), (*NUCLEAR INDUSTRIAL APPLICATIONS, NONDESTRUCTIVE TESTING), BOILERS, MARINE ENGINEERING, BOILER TUBES, THICKNESS, MEASUREMENT, RADIOACTIVE ISOTOPES, GEIGER COUNTERS, THULIUM

Distribution Statement : APPROVED FOR PUBLIC RELEASE