THE APPLICATION OF RADIOISOTOPES IN SHIPBUILDING FOR NONDESTRUCTIVE MATERIAL TESTING
Journal Article
·
· Schiffbautechnik
OSTI ID:4805941
S>Safety and reliability in shipbuilding require exact testing methods for all materials, such as plates, sheets, rods, cast pieces, welded joints, etc. Non-visible defects in parts exposed to great stress may cause great damages. Since both x-ray and gamma radiography can detect these defects, a choice has to be made between these radiation sources. ln general, for very thick pieces, gamma emitters such as Co/sup 60/ or Ta/sup 182/ are used; for medium thick pieces, gamma emitters, such as Ir/sup 192/ or Cs/sup 137/ are used; for very thin pieces weak gamma emitters, such as Eu/sup 155/ or x rays are used. There is no competition between x rays and gamma rays in nondestructive testing because both methods supplement each other. The tcchnical and economical advantages and disadvantages of both methods are discussed. In shipbuilding, Ir/ sup 192/ has extremely good irradiation qualities for sheets from 6 to 50 mm thick and is superior to the x-ray method for checking welds of sheets of this thickness. However, for materials thicker than 50 mm x rays are useless, and defects in this material must be located with hard gamma emitters, such as Co/ sup 60/. Recently, mobile test stations with radioisotopes were established which are of great value for checking and quality control in shipbuilding at the shipyard. (OID)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-024067
- OSTI ID:
- 4805941
- Journal Information:
- Schiffbautechnik, Journal Name: Schiffbautechnik Vol. Vol: 12
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
THE APPLICATION OF RADIOISOTOPES FOR ON-SITE INSPECTION OF THE STATE OF FRENCH GASMAINS
THE EXAMINATION OF WELDED JOINTS OF STEEL PLATES LESS THAN FIFTY MILLIMETERS THICK
THE USE OF AGFA-TEXO-F-FILM IN THE NON-DESTRUCTIVE TESTING OF MATERIALS WITH $gamma$-RAYS
Journal Article
·
Thu Nov 30 23:00:00 EST 1961
· Microtecnic
·
OSTI ID:4829448
THE EXAMINATION OF WELDED JOINTS OF STEEL PLATES LESS THAN FIFTY MILLIMETERS THICK
Journal Article
·
Sat Dec 31 23:00:00 EST 1960
· Ingenieria Quimica
·
OSTI ID:4805944
THE USE OF AGFA-TEXO-F-FILM IN THE NON-DESTRUCTIVE TESTING OF MATERIALS WITH $gamma$-RAYS
Journal Article
·
Mon Aug 01 00:00:00 EDT 1960
· Isotopentechnik
·
OSTI ID:4806048