[Determination of the gonadal dose in radiotherapy with thermoluminescent dosimetry].

Thermoluminescence dosimetry was done in patients who had head-neck-, mantel- and abdominal fields with Cobalt 60 or Linac. Critical levels for the gonads were only reached by abdominal irradiation. The testicular dose of 2 Gy accumulated as 5% of a 40 Gy tumor dose may lead to permanent azoospermia. Testicular shielding by 2 or 4 mm lead capsules does not lead to dose reduction.