Types of brachytherapy => Brachytherapy machine Temporary brachytherapy In temporary brachytherapy, you may have one or more treatment sessions to deliver the full dose of radiation prescribed by the radiation oncologist. The radioactive source is inserted using applicators such as thin plastic tubes (catheters) or cylinders. The source is removed at the end of each treatment session. The applicator may be removed at the same time, or left in place until after the final session. Temporary brachytherapy is mostly used for prostate cancers and gynaecological cancers (such as cervical and vaginal cancers). Safety precautions While the radioactive source is in place, some radiation may pass outside your body. For this reason, hospitals take certain safety precautions to avoid exposing staff and visitors to radiation. Staff will explain any restrictions before you start brachytherapy treatment. In some cases, the treatment will be  high-dose-rate brachytherapy  and it