[Procedure for the control of tube voltage in roentgen diagnostics]

It is often necessary to check X-ray tube voltage within the framework of quality control requirements which will soon become legally mandatory. Non-invasive methods are most suitable, but their cost and accuracy are subject to variation. The more precise the measurement of tube voltage, the costlier the measuring instrument and method of measurement will be. However, there are also relatively simple systems which will yield quite satisfactory results.