Title:
BEAM TRANSPORT SYSTEM AND PARTICLE THERAPY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/004772
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a beam transport system which is capable of enabling chromatic aberration of a beam at an irradiation position of the beam to be nearly zero even when the beam is emitted from a small synchrotron. According to this beam transport system (4), an optical parameter calculation device (17) calculates a starting point momentum dispersion function which is a momentum dispersion function (η, η') of a charged particle beam (31) at a design starting point (S) of the beam transport system (4) set on a beam orbit of an accelerator (3) on the basis of a beam time variation related quantity which is a time variation amount of a beam position or a beam diameter in a beam profile monitor (11) calculated by a beam analysis device (14), and calculates an optical parameter in which the starting point momentum dispersion function and an original condition at an irradiation position (T) at which profile data was detected are initial conditions.
Inventors:
HANAKAWA KAZUSHI (JP)
SUGAHARA KENGO (JP)
ODAWARA SHUHEI (JP)
SUGAHARA KENGO (JP)
ODAWARA SHUHEI (JP)
Application Number:
PCT/JP2013/068981
Publication Date:
January 15, 2015
Filing Date:
July 11, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
A61N5/10
Domestic Patent References:
| WO2011053960A1 | 2011-05-05 |
Foreign References:
| US4795912A | 1989-01-03 | |||
| JPS54152386A | 1979-11-30 | |||
| JPH07275381A | 1995-10-24 | |||
| JPH11176596A | 1999-07-02 | |||
| JP2011206237A | 2011-10-20 |
Other References:
See also references of EP 3020451A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
Download PDF: