In a method for monitoring of a radio frequency power amplifier and a radio frequency device, a radio frequency monitoring device and magnetic resonance tomography system operable according to the method, radio frequency pulses emitted by a radio frequency power amplifier and are transmitted into a human subject by a transmission coil at temporal intervals. Dealcoholization reaction takes place between the carboxylic acid group and the alkoxysilyl group in the structure to induce intramolecular crosslinking. The lever rotates along another arrow so as to move the connector apart from the mating connector. In one implementation, the buses are low voltage differential signal type buses, and in another implementation, the buses are hyper transport type buses. The payment option information indicates the willingness of the first participant to accept a payment from a second participant via one or more of the various payment instruments.