Charged particle beam treatment apparatus
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United States of America Patent
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Nov 26, 2019
Grant Date -
Jan 18, 2018
app pub date -
Sep 27, 2017
filing date -
Mar 30, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided a charged particle beam treatment apparatus including an accelerator configured to emit a charged particle beam by accelerating a charged particle, an irradiation unit configured to irradiate an irradiation target with the charged particle beam, a beam transport line configured to transport the charged particle beam emitted from the accelerator, to the irradiation unit, a first dose measurement unit that is disposed inside the irradiation unit so as to measure a first dose of the charged particle beam, and a second dose measurement unit that is disposed in the beam trans port line so as to measure a second dose of the charged particle beam. A response frequency of the second dose measurement unit is higher than a response frequency of the first dose measurement unit.
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