ASTM-E2903 2013

$40.63

E2903-13 Standard Test Method for Measurement of the Effective Focal Spot Size of Mini and Micro Focus X-ray Tubes

Published By	Publication Date	Number of Pages
ASTM	2013	5

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Categories: 11.040.50 - Radiographic equipment, ASTM

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Description

ASTM E2903-13

Historical Standard: Standard Test Method for Measurement of the Effective Focal Spot Size of Mini and Micro Focus X-ray Tubes

ASTM E2903

Scope

1.1 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 distribution as seen from the imaging place.

1.2 This test method provides instructions for determining the effecting size (dimensions) of mini and micro focal spots of industrial X-ray tubes. It is based on the European standard, EN 12543–5, Non-destructive testing – Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing – Part 5: Measurement of the effective focal spot size of mini and micro focus X-ray tubes.

1.3 This standard specifies a method for the measurement of effective focal spot dimensions from 5 up to 300 μm of X-ray systems up to and including 225 kV tube voltage, by means of radiographs of edges. Larger focal spots should be measured using Test Method E1165 Standard Test Method for Measurement of Focal Spots of Industrial X-Ray Tubes by Pinhole Imaging.

1.4 The same procedure can be used at higher kilovoltages by agreement, but the accuracy of the measurement may be poorer.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 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.

Keywords

focal spots; microfocus; X-ray imaging; X-ray tube

ICS Code

ICS Number Code 11.040.50 (Radiographic equipment)

DOI: 10.1520/E2903-13

Additional information

Standard Title	E2903-13 Standard Test Method for Measurement of the Effective Focal Spot Size of Mini and Micro Focus X-ray Tubes
Published Code	ASTM
Publication Date	2013
Pages Count	5
ICS Codes	11.040.50 - Radiographic equipment