公开(公告)号：FR2628268A1

公开(公告)日：1989-09-08

申请号：FR8900038

申请日：1989-01-04

Applicant: RADIATION DYNAMICS

Inventor： THOMPSON CHESTER C

IPC: H05H5/02 ,  H01F30/00 ,  H01F30/12 ,  H01F38/18

Abstract: An apparatus for producing a very high DC potential output from an AC input. Multiple secondary circuits, each comprised of an individual coil wound about a separate magnetic core, are positioned within the magnetic field of a single primary coil. The output of each secondary circuit is rectified. The output of all secondary circuits is combined in series to provide the high DC potential. The seconary cores are supplied in parallel from the magnetic flux of the primary coil. The primary core and coil form an essentially cylindrical shell, with the secondary cores and coils located within the cylinder interior.

公开(公告)号：DE3842131A1

公开(公告)日：1989-06-22

申请号：DE3842131

申请日：1988-12-12

Applicant: RADIATION DYNAMICS

Inventor： THOMPSON CHESTER C ,  LOBY ROYMOND J

IPC: H01J37/06 ,  G21K5/10 ,  H01J37/147

Abstract: Provided herein is an electro-magnetic field former for controlling charged particle trajectories in a scanning charge particle source including a pair of induction coils and C-shaped ferromagnetic yokes which are positioned in the air space between the particle source and a target at the target edges to normalize the angle of incidence of the particles relatve to the target and to deflect scattered particles into the target edges. Also provided is a field former controller to compensate for induced flux variations caused by an oscillating particle beam.

公开(公告)号：FR2627626A1

公开(公告)日：1989-08-25

申请号：FR8816325

申请日：1988-12-12

Applicant: RADIATION DYNAMICS

Inventor： THOMPSON CHESTER C ,  LOBY RAYMOND J

IPC: H01J37/06 ,  G21K5/10 ,  H01J37/147

Abstract: Provided herein is an electro-magnetic field former for controlling charged particle trajectories in a scanning charge particle source including a pair of induction coils and C-shaped ferromagnetic yokes which are positioned in the air space between the particle source and a target at the target edges to normalize the angle of incidence of the particles relatve to the target and to deflect scattered particles into the target edges. Also provided is a field former controller to compensate for induced flux variations caused by an oscillating particle beam.