UNE-EN ISO 16526-2:2020
Current
The latest, up-to-date edition.
Non-destructive testing - Measurement and evaluation of the X-ray tube voltage - Part 2: Constancy check by the thick filter method (ISO 16526-2:2011)
Hardcopy , PDF
English, Spanish, Castilian
22-07-2020
This part of ISO 16526 ÀÛÜspecifies a constancy check of a X-ray system where mainly the X-ray voltage is checked
ÀÛDÜÀÛQÜÀÛGÜÀÛÜÀÛDÜÀÛOÜÀÛVÜÀÛRÜÀÛÜthe tube current and the constitution of the target which can be changing due to ageing of the tube.
The thick filter method is based on a measurement of the dose rate behind a defined thick filter using defined
distances between the X-ray tube, the filter and the measuring device.
This method is very sensitive to changes of the voltage, but it does not provide an absolute value for the X-ray tube
voltage. Therefore, a reference value is needed and, it is recommended to find this reference, for example, within
the acceptance test of the system.
The thick filter method is a rather simple technique and may be applied by the operator of an X-ray system to
perform regularly a constancy check of the system.
The method can also be applied for consistency checks after changing components which may affect the X-ray tube
voltage.
This method can be applied for all types of X-ray systems, i. e. for constant potential, half wave and impulse wave
generators with a tube current larger than 1 mA.
| Committee |
CTN 130
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| EN ISO 16526-2:2020 | Identical |
| ISO 16526-2:2011 | Identical |
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