公开(公告)号：EP3496516A1

公开(公告)日：2019-06-12

申请号：EP17206339.8

申请日：2017-12-11

申请人： Ion Beam Applications S.A.

发明人： NUTTENS, Vincent ,  VAN DE WALLE, Jarno

IPC分类号： H05H7/10 ,  H05H13/00 ,  H05H13/02

摘要： The present invention concerns a cyclotron for accelerating charged particles, in particular hadrons, comprising:
• At least a first and second superconducting main coils (11, 12) arranged parallel to one another on either side of a median plane, P, defining a symmetry plane of the cyclotron, said at least first and second superconducting main coils generating a main magnetic field, Bz, in an acceleration gap (6) between a first and second field shaping units (41, 42),
• At least a first and second field bump modules (51, 52) arranged on either side of the median plane, P, and extending circumferentially over a common azimuthal angle, cpb, for creating a local magnetic field bump in the main magnetic field, Bz, wherein each of the field bump modules comprises;
∘ At least one superconducting bump coil (51b, 52b) locally generating a broad magnetic field bump having a bell-shape defined by a first gradient, (dBz / dr)i, of the z-component, Bz, in a radial direction, r,


Characterised in that, each of the field bump modules further comprises
At least one superconducting bump shaping unit (51s, 52s) positioned such as to locally steepen the first gradient, (dBz / dr) 1 , produced by the at least one superconducting bump coil, preferably by a factor of at least two, when said at least one superconducting bump shaping unit (51s, 52s) is activated.

公开(公告)号：EP3496516B1

公开(公告)日：2020-02-19

申请号：EP17206339.8

申请日：2017-12-11

申请人： Ion Beam Applications S.A.

发明人： NUTTENS, Vincent ,  VAN DE WALLE, Jarno

IPC分类号： H05H7/10 ,  H05H13/00 ,  H05H13/02

公开(公告)号：EP3503693A1

公开(公告)日：2019-06-26

申请号：EP17209226.4

申请日：2017-12-21

申请人： Ion Beam Applications S.A.

发明人： DE NEUTER, Sébastien ,  GEETS, Jean-Michel ,  NACTERGAL, Benoit ,  NUTTENS, Vincent ,  VAN DE WALLE, Jarno

IPC分类号： H05H7/10 ,  H05H13/00

摘要： The present invention concerns a cyclotron for accelerating a beam of charged particles over an outward spiral path until the beam of charged particles reaches a desired energy, and for extracting said beam to hit a target (20t), said cyclotron comprising:
• A vacuum chamber circumscribed by a peripheral wall (8) and comprising an opening (80),
• a target support element (20) sealingly coupled to a downstream end of the opening (80), outside the vacuum chamber, and comprising a tubular channel (20c) leading to a target holder for holding a target (20t),
• a first stripper assembly (10i) with a stripper located at a first stripping position, Pi, for stripping charged particles at a first energy, Ei,
Characterized in that, the cyclotron comprises an energy specific extraction kit for driving modified charged particles of second energy, Ej, with j ≠ i, along a second extraction path, Sj, through the opening in the peripheral wall, along the tubular channel, and towards the target holder, wherein the energy specific extraction kit comprises,
• a second stripper assembly (10j) with a stripper located at a second stripping position, Pj, for stripping charged particles at a second energy, Ej,: and
• an insert (21j) to be sandwiched between the downstream end of the opening (80) and the target support element (20) with an insert channel (21c) for modifying an orientation of the tubular channel to match the second extraction path, Sj, such that the modified charged particles of second energy, Ej, intercept the target holder.

公开(公告)号：EP3503693B1

公开(公告)日：2020-02-19

申请号：EP17209226.4

申请日：2017-12-21

申请人： Ion Beam Applications S.A.

发明人： DE NEUTER, Sébastien ,  GEETS, Jean-Michel ,  NACTERGAL, Benoit ,  NUTTENS, Vincent ,  VAN DE WALLE, Jarno

IPC分类号： H05H7/10 ,  H05H13/00