Wednesday 12 December 2007 6.35pm
There are different types of radiotherapy, external and internal. External means the radiation comes from a machine, internal means radioactive implants or liquids.
External certainly does not make the patient radioactive at all, internal can emit a small amount of radiation, although that should be very local (ie only around the tumour), not least because no harm should come to the patient himself. If the implant emits beyond that, the patient's movement and visitors will be restricted.
In short: cuddle the baby as much as you like.