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BS EN 61262-4:1995 Characteristics of electro-optical X-ray image intensifiers for medical electrical equipment. - Part 4. Determination of the image distortion

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The image distortion is a functional performance characteristic which describes deviations from a similarity representation of an image in the entrance plane to the output image of an electro-optical X-ray image intensifier. It will however be assumed that angular distortions like the S-shaped distortion of a straight line through the centre of the entrance field can be reduced to a small size by adequate magnetic shielding since the X-ray image intensifier itself is by construction very nearly axially symmetrical. Therefore this standard will be confined to radial distortion. A slight S-shaped distortion may persist in spite of the shielding. Its influence on the measurement of magnification, described below, is negligible. This International Standard applies to electro-optical X-ray image intensifiers for medical use, as components of diagnostic X-ray equipment. This International Standard describes a method of determining the image distortion of X-ray image intensifiers.
Contributor(s):
MAR - Data Entry Person
Primary Item Type:
British Standard
Identifiers:
ICS 11.040.50 Radiographic equipment
ISBN 0580240517
Language:
English
Subject Keywords:
Electro-optical effects; Medical radiography; Image distortion; X-ray apparatus; Optical measurement; Optical instruments; Performance testing; Clinical investigation instruments; Test equipment; Radiology apparatus (medical); Image intensifiers; Electrical medical equipment
First presented to the public:
6/23/2023
Original Publication Date:
5/15/1995
Previously Published By:
British Standards Institution
Place Of Publication:
London, United Kingdom
Citation:
Extents:
Number of Pages - 14
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2023-06-23 11:38:47.565
Submitter:
Muhamad Azmil Ramli

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BS EN 61262-4:1995 Characteristics of electro-optical X-ray image intensifiers for medical electrical equipment. - Part 4. Determination of the image distortion1 2023-06-23 11:38:47.565
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