Abstract: The present invention improves the accuracy of therapy by checking in real time whether an spread-out Bragg peak (SOBP) width agrees with a desired width during irradiation with a beam. The device for outputting a charged particle beam includes a charged particle beam generator 1 including a synchrotron 4; a range modulation device such as a range modulation wheel (RMW) 28 which forms a Bragg peak of an ion beam extracted from this charged particle beam generator 1; an irradiation device 16 which is located in the direction of ion beam propagation of this RMW device 28 and includes a dose monitor 31 for detecting a dose of the ion beam; and an SOBP width calculation device 73 which calculates ion beam Bragg peak formed by the RMW device 28 based on a detection value of the dose monitor 31.

Abstract: The present invention improves the accuracy of therapy by checking in real time whether an spread-out Bragg peak (SOBP) width agrees with a desired width during irradiation with a beam. The device for outputting a charged particle beam includes a charged particle beam generator 1 including a synchrotron 4; a range modulation device such as a range modulation wheel (RMW) 28 which forms a Bragg peak of an ion beam extracted from this charged particle beam generator 1; an irradiation device 16 which is located in the direction of ion beam propagation of this RMW device 28 and includes a dose monitor 31 for detecting a dose of the ion beam; and an SOBP width calculation device 73 which calculates ion beam Bragg peak formed by the RMW device 28 based on a detection value of the dose monitor 31.

Abstract: A method and a circuit for suppressing sequential "zeroes" data comprising, a transmitting portion and a receiving portion. The transmitting portion of the circuit provides a device for detecting whether zeroes data is sequenced in a frame, inserting the datum "1" after the sequential zeroes data when sequential zeroes data is detected, sending the frame having the datum "1" to the receiving portion and adding a portion of the frame, which is forced out by the insertion of the datum "1", to the top portion of the next frame. This forced out portion is used for detecting sequential zeroes data in the next frame. The receiving portion of the circuit detects whether the datum "1" has been inserted because sequential zeroes data are present in the frame received, and deletes the datum "1" from the received frame.