A portable personal computer makes access to a service handling server set up on the Internet, and transmits data from a power source monitor. The system has a patient’s couch having a tabletop movable in a predetermined direction passing through a static magnetic field a well as reception multiple RF coils 7R consisting of for example a plurality of coil groups. The method further includes receiving a result of the payment authorization from the payment entity through the mobile communication device; and completing the payment transaction based on the result of the payment authorization. The channel of the second transistor extends in a substantially horizontal direction. Several embodiments are disclosed.