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ASTM E 1165 : 2020

Current
Current

The latest, up-to-date edition.

Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-01-2021

1.1The image quality and the resolution of X-ray images are especially sensitive to the characteristics of the focal spot. The imaging qualities of the focal spot are based on its two dimensional intensity distribution as seen from the detector plane.

1.2This test method provides instructions for determining the effective size (dimensions) of standard and mini focal spots of industrial X-ray tubes for focal spot dimensions from 100 μm up to several mm of X-ray sources up to 600 kV tube voltage. Smaller focal spots down to 50 µm could be evaluated with less precision. This determination is based on the measurement of an image of a focal spot that has been radiographically recorded with a “pinhole” technique. An alternative method with a plaque hole IQI may be found in the Annex A, which covers the same focal spot sizes.

1.3Smaller focal spots should be measured using Test Method E2903 using the projection of an edge.

1.4This test method may also be used to determine the change in focal spot size 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.

1.5Units—Values stated in SI units are to be regarded as the standard.

1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee
E 07
DocumentType
Test Method
Pages
17
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 2446 : 2016 Standard Practice for Manufacturing Characterization of Computed Radiography Systems
ASTM E 1742/E1742M : 2018 Standard Practice for Radiographic Examination
ASTM E 1411 : 2016 Standard Practice for Qualification of Radioscopic Systems
ASTM E 2698 : 2018 : EDT 1 Standard Practice for Radiographic Examination Using Digital Detector Arrays
ASTM E 2903 : 2018 Standard Test Method for Measurement of the Effective Focal Spot Size of Mini and Micro Focus X-ray Tubes
ASTM E 1255 : 2016 Standard Practice for Radioscopy
ASTM E 2104 : 2015 Standard Practice for Radiographic Examination of Advanced Aero and Turbine Materials and Components
ASTM E 2662 : 2015 Standard Practice for Radiographic Examination of Flat Panel Composites and Sandwich Core Materials Used in Aerospace Applications
ASTM E 1734 : 2016 : REV A Standard Practice for Radioscopic Examination of Castings
ASTM E 2033 : 2017 Standard Practice for Radiographic Examination Using Computed Radiography (Photostimulable Luminescence Method)

ASTM E 2002 : 2022 Standard Practice for Determining Image Unsharpness and Basic Spatial Resolution in Radiography and Radioscopy
ASTM E 2736 : 2017 Standard Guide for Digital Detector Array Radiography
ASTM E 1255 : 2023 Standard Practice for Radioscopy
ASTM E 2339 : 2015 Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
ASTM E 1815 : 2018 Standard Test Method for Classification of Film Systems for Industrial Radiography
ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2023 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 2339 : 2021 Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 2736 : 2017 : R2022 Standard Guide for Digital Detector Array Radiography
ASTM E 2002 : 2015 Standard Practice for Determining Total Image Unsharpness and Basic Spatial Resolution in Radiography and Radioscopy
ASTM E 1815 : 2018 : R2023 Standard Test Method for Classification of Film Systems for Industrial Radiography

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