| Abstract: | Thermoluminescence dosimetry is often used to verify the calculation of dose distribution of treatment techniques and treatment planning by using a phantom. However, a quality assurance of therapy by comparison between treatment planning and actual dose values measured with TL-detectors on the patient, is only sporadically realized. The use of a single detector offers a solution for the measurement of both the neutron and gamma ray absorbed doses in mixed neutron-photon fields in fast neutron tumour therapy. The knowledge of both gamma ray and neutron absorbed doses is important because of the considerable difference in biological efficiency of these two types of radiation. |
