Difference between revisions of "Gamma radiography"
JLBoutaine (talk | contribs) (Created page with "== Description == A radiographic technique for the nondestructive examination of cultural heritage artefacts (mainly metal or stone statues). The radiation source is a sealed...") |
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== Description == | == Description == | ||
− | A radiographic technique for the nondestructive examination of cultural heritage artefacts (mainly metal or stone statues). The radiation source is a sealed radioactive source (iridium 192 or cobalt 60) set in a gamma radiography projector. The gamma rays will penetrate different composition/density materials to varying degrees. The resulting variations of transmission of these radiations are recorded by a detector, generaly a radiographic film | + | A radiographic technique for the nondestructive examination of cultural heritage artefacts (mainly metal or stone statues). The radiation source is a sealed radioactive source (iridium 192 or cobalt 60) set in a gamma radiography projector. The gamma rays will penetrate different composition/density materials to varying degrees. The resulting variations of transmission of these radiations are recorded by a detector, generaly a radiographic film. The resulting gamma radiograph shows the differential absorption pattern, useful for examining an object internal structure : homogeneity of the constitutive material, voids, cracks, inserts, mechanical assembly processes, previous restoration or modification... |
== Synonyms and related terms == | == Synonyms and related terms == | ||
Radiographie gamma, gammagraphie (Fr.); | Radiographie gamma, gammagraphie (Fr.); |
Revision as of 16:31, 20 August 2013
Description
A radiographic technique for the nondestructive examination of cultural heritage artefacts (mainly metal or stone statues). The radiation source is a sealed radioactive source (iridium 192 or cobalt 60) set in a gamma radiography projector. The gamma rays will penetrate different composition/density materials to varying degrees. The resulting variations of transmission of these radiations are recorded by a detector, generaly a radiographic film. The resulting gamma radiograph shows the differential absorption pattern, useful for examining an object internal structure : homogeneity of the constitutive material, voids, cracks, inserts, mechanical assembly processes, previous restoration or modification...
Radiographie gamma, gammagraphie (Fr.);