Abstract: Disclosed herein is a method of manufacturing a radio frequency cavity resonator, wherein said radio frequency cavity resonator comprises a tubular structure extending along a longitudinal axis, said tubular structure comprising a circumferential wall structure surrounding said longitudinal axis, one or more tubular elements and a first and a second support structure associated with each of said tubular elements, wherein said first and second support structures are provided on opposite sides of each tubular element and extend radially along a diameter of the tubular structure, wherein the method comprises producing the resonator by additive manufacturing in a manufacturing direction that is parallel to said diameter.

Abstract: Disclosed herein is a method of determining information regarding the location of energy deposition of an ion beam in an absorptive medium, comprising the following steps: generating a pulsed ion beam, detecting a time-resolved acoustic signal, said time-resolved acoustic signal comprising an energy-deposition-signal component attributable to the energy deposition of an individual pulse of said pulsed ion beam in said absorptive medium, determining relative timing information of the energy deposition of said individual pulse with respect to said time-resolved acoustic signal, providing a matched filter for processing the time-resolved acoustic signal, and applying said matched filter to said time-resolved acoustic signal, deriving, from the filtered time-resolved signal, occurrence timing information related to the occurrence of said energy-deposition signal component in said time-resolved acoustic signal, and deriving information regarding the location of the energy deposition based, at least in part, on a d

Abstract: Disclosed is a method of determining information regarding the location of energy deposition of an ion beam, in particular a proton beam, in an absorptive medium, in particular in the tissue of a patient undergoing radiation therapy, comprising the following steps: generating an intensity modulated ion beam, wherein the intensity modulation comprises one or more modulation frequency components, detecting an acoustic signal attributable to the time dependent energy deposition in said absorptive medium by said intensity modulated ion beam using at least one detection apparatus, said detection apparatus being preferably configured for extracting at least one modulation frequency component of the acoustic signal corresponding to a respective one of the one or more modulation frequency components of said intensity modulation, or a harmonic thereof, and deriving information regarding the location of the energy deposition based, at least in part, on a time lag between the timing of the intensity modulation of sai

Abstract: Disclosed is a method of determining information regarding the location of energy deposition of an ion beam, in particular a proton beam, in an absorptive medium, in particular in the tissue of a patient undergoing radiation therapy, comprising the following steps: generating an intensity modulated ion beam, wherein the intensity modulation comprises one or more modulation frequency components, detecting an acoustic signal attributable to the time dependent energy deposition in said absorptive medium by said intensity modulated ion beam using at least one detection apparatus, said detection apparatus being preferably configured for extracting at least one modulation frequency component of the acoustic signal corresponding to a respective one of the one or more modulation frequency components of said intensity modulation, or a harmonic thereof, and deriving information regarding the location of the energy deposition based, at least in part, on a time lag between the timing of the intensity modulation of sai