发明公开
EP2974771A1 A method and apparatus for determining an energy deposition of an ion beam
有权
Vorrichtung zur Bestimmung einer Energiedeponierung eines Ionenstrahls
- 专利标题： A method and apparatus for determining an energy deposition of an ion beam
- 专利标题（中）： Vorrichtung zur Bestimmung einer Energiedeponierung eines Ionenstrahls
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申请号： EP14182487.0申请日： 2014-08-27
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公开(公告)号： EP2974771A1公开(公告)日： 2016-01-20
- 发明人: Dollinger, Günther , Parodi, Katia , Assmann, Walter , Ntziachristos, Vasilis , Kellnberger, Stephan
- 申请人： Universität der Bundeswehr München , Ludwig-Maximilians-Universität München
- 申请人地址： Werner-Heisenberg-weg 39 85577 Neubiberg DE
- 专利权人： Universität der Bundeswehr München,Ludwig-Maximilians-Universität München
- 当前专利权人： Universität der Bundeswehr München,Ludwig-Maximilians-Universität München
- 当前专利权人地址： Werner-Heisenberg-weg 39 85577 Neubiberg DE
- 代理机构： Lucke, Andreas
- 优先权： EP14177712 20140718
- 主分类号： A61N5/10
- IPC分类号： A61N5/10 ; G21K1/04
摘要：
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 said ion beam and said acoustic signal.
- 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 said ion beam and said acoustic signal.
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