ASTM E 1165 : 2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
Hardcopy , PDF
11-11-2014
English
01-01-2004
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
E 07
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| DocumentType |
Test Method
|
| Pages |
8
|
| ProductNote |
Reconfirmed 2004
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1 This test method provides instructions for determining the length and width dimensions of line focal spots in industrial X-ray tubes (see Note 0). This determination is based on the measurement of an image of a focal spot that has been radiographically recorded with a "pinhole" projection/imaging technique.
Note 1—Line focal spots are associated with vacuum X-ray tubes whose maximum voltage rating does not generally exceed 500 kV.
1.2 This test method may not yield meaningful results on focal spots whose nominal size is less than 0.3 mm [0.011 in.]. (See Note 1.)
Note 2—The X-ray tube manufacturer may be contacted for nominal focal spot dimensions.
1.3 This test method may also be used to determine the presence or extent of focal spot damage or deterioration that may have occurred due to tube age, tube overloading, and the like. This would entail the production of a focal spot radiograph (with the pinhole method) and an evaluation of the resultant image for pitting, cracking, and the like.
1.4 Values stated in SI units are to be regarded as the standard. Inch-pound units are provided for information only.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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