Patent ID: 8674319
Filing Date: 2014-03-18
Classification: A61N,G01T

Abstract:
1. A beam monitor system comprising: a collection electrode, including a plurality of wire electrodes, to detect a charged particle beam passing therethrough; a signal processor to receive respective detection signals outputted from the wire electrodes to execute signal processing; and a beam monitoring control unit to find a position as well as a beam width of the charged particle beam having passed through the wire electrode on the basis of processing signals from the signal processor, wherein the charge-collection electrode is made up of plural groups, each of the groups being made up of the plural wire electrodes adjacent to each other, wherein the signal processor is connected to all the wire electrodes via a number of interconnections, identical in number to the number of the wire electrodes belonging to the one group such that a detection signal outputted from one of the wire electrodes, selected from the respective groups, is inputted from interconnections identical to each other, and wherein the signal processor finds the group information indicating which group's detection signal of the wire electrode a received detection signal is, thereby outputting the processing signal containing the group information to the beam monitoring control unit.