Andrew

No special devices for treatment, just the plain EMPTY fluoride trays that I put in right before going into radiation room. Sounds like you have a more specialized appliance so you may not need to wear the trays too. I did and still do and the dentist says I will for life: put fluoride into the trays at night before I go to bed. Heads up: during the middle of the radiation treatment my mouth was so sore that I could not bear to put in the trays and the fluoride burned also so I just quit for a while doing the nightime routine and did it a little longer in the day whenever my mouth felt better for a bit.
GOOD LUCK and of course PLEASE check with your Dentist and follow his/her advice.