The definitions of the energy dose for water as a measured quantity for the entire sector of radiotherapy gives rises to practical problems when implemented for dosimetry of soft X-rays, as the flat chambers which are commonly used in this energy range cannot be applied to a water phantom. For this reason, the ionization chamber is inserted into the surface region of a solid-state phantom.
DIN 6809-4:1988 history
2020DIN 6809-4:2020-04 Clinical dosimetry - Part 4: X-ray therapy with X-ray tube voltages between 10 kV and 300 kV
2020DIN 6809-4:2020 Clinical dosimetry - Part 4: X-ray therapy with X-ray tube voltages between 10 kV and 300 kV
1970DIN 6809-4 E:2016-06 Clinical dosimetry; applications of X-rays with peak voltages between 10 and 100 kV in radiotheraphy and soft tissue diagnostics
2016DIN 6809-4 E:2016 Draft Document - Clinical dosimetry - Part 4: X-ray therapy with X-ray tube voltages between 10 kV and 300 kV
1988DIN 6809-4:1988 Clinical dosimetry; applications of X-rays with peak voltages between 10 and 100 kV in radiotheraphy and soft tissue diagnostics