vivo 4dRADPOS is an in vivo dosimetry system that has been recently developed in-house in collaboration with Best Medical Canada [14], [24].It is made up of a MOSFET dosimeterOS- Ai Vivo 4D + 2D. 13)Do not use massager in close proximity to loose clothing or jewelry. 14)Keep long hair away from massager while in use. 15)Use heated surfaces carefully.May