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ASTM E1165

Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging

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Organization: ASTM
Publication Date: 15 May 1992
Status: inactive
Page Count: 7
ICS Code (Non-destructive testing): 19.100
scope:

1. Scope

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 1). 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 2.)

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 occured 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.

Document History

June 15, 2012
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
The image quality and the resolution of X-ray images highly depend on the characteristics of the focal spot. The imaging qualities of the focal spot are based on its two dimensional intensity...
June 15, 2012
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
A description is not available for this item.
January 1, 2004
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
This test method provides instructions for determining the length and width dimensions of line focal spots in industrial X-ray tubes (see Note 1). This determination is based on the measurement of an...
January 1, 2004
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
This test method provides instructions for determining the length and width dimensions of line focal spots in industrial X-ray tubes (see Note 1). This determination is based on the measurement of an...
ASTM E1165
May 15, 1992
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
1. Scope 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 1). This determination is based on the...
May 15, 1992
Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
This test method provides instructions for determining the length and width dimensions of line focal spots in industrial X-ray tubes (see Note 1). This determination is based on the measurement of an...
May 29, 1987
STANDARD TEST METHOD FOR MEASUREMENT OF FOCAL SPOTS OF INDUSTRIAL X-RAY TUBES BY PINHOLE IMAGING
A description is not available for this item.

References

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