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1. 发明专利

JPH10177899A TANDEM ACCELERATOR 失效
公开(公告)号：JPH10177899A
公开(公告)日：1998-06-30
申请号：JP33946196
申请日：1996-12-19
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： KIMURA TOSHIO , IWATAKE TOMOYUKI
IPC分类号： H05H5/06
摘要： PROBLEM TO BE SOLVED: To prevent temperature rising in an inlet part of a high voltage terminal of a tandem accelerator and increase current value of negative ion beams. SOLUTION: A heat pipe insertion hole 201c is formed in an inlet side block 201 of a high voltage terminal 2 of a tandem accelerator, one end of a heat pipe 9 is inserted into the insertion hole 201c, and the heat pipe 9 and the inlet side block 201 are bonded so as to transmit heat. Heat generated by the collision of negative ion beams against an inlet 201a of the high voltage terminal is radiated to the outside through the heat pipe 9, and the temperature rising in the inlet 201a of the high voltage terminal is suppressed.

2. 发明专利

JPH08220298A ION BEAM STOPPING MEMBER 失效
公开(公告)号：JPH08220298A
公开(公告)日：1996-08-30
申请号：JP5965695
申请日：1995-02-11
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： IWATAKE TOMOYUKI , BABA TAKASHI
IPC分类号： G21K1/10 , C23C14/32 , H01J37/317 , H01L21/265
摘要： PURPOSE: To provide an ion beam stopping member capable of making substantially small an amount of neutrons generated as a result of the collision of high-speed ion particles with a structure. CONSTITUTION: This ion beam stopping member 13 is made of tantalum laid in the duct 1 of an ion doping chamber or the like to stop an ion beam. The surface of the member 13 coming in contact with an ion beam is made irregular by forming, for example, opposed slopes 14 and 15 having V-shaped cross section. Thus, an ion beam 12 colliding with the irregular surface is repeatedly reflected thereon. As a result of this repetitive reflection process, the energy of the ion beam 12 is consumed, thereby reducing an amount of neutrons generated due to the collision of ion particles with a structure.

3. 发明专利

JPH11101898A IRRADIATION WINDOW 失效
公开(公告)号：JPH11101898A
公开(公告)日：1999-04-13
申请号：JP27965897
申请日：1997-09-26
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： IWATAKE TOMOYUKI
IPC分类号： G21K5/00
摘要： PROBLEM TO BE SOLVED: To maintain an initial uniform interval even if they are heated by making a plurality of juxtaposed sash bars folded in the form of a trapezoid in planar view, respectively. SOLUTION: All sash bars 8 of an irradiation window 4a are made folded in the form of a trapezoid in planar view, respectively. Thus, folding parts 8a exist on both ends of each sash bar 8, respectively. When the folding angle of the folding part 8a is small, action freely allowing the longitudinal elongation of the sash bar 8 is lowered, and if it is large, it is preferably in a range of 50-70 degrees since it is difficult to work the sash bar. The sash bar 8 and a frame 10 may be integrally formed by a wire cutting processing method and the like, and may be mutually combined by being formed by different members. Even if the sash bar 8 is heated by irradiation of a charged particle to be extended, the angle of the folding part 8a is large to be absorbed, and bending of the sash bar 8 can be prevented. Thus, an initial uniform interval can be maintained, and damage and life lowering due to partial overheat of a window foil can be prevented.

4. 发明专利

JPH10271825A HIGH-VOLTAGE DC POWER UNIT 失效
公开(公告)号：JPH10271825A
公开(公告)日：1998-10-09
申请号：JP11333597
申请日：1997-03-25
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： IWATAKE TOMOYUKI , HAYASHI KEIZO
IPC分类号： H01F27/30 , H01F27/02 , H02M7/04
摘要： PROBLEM TO BE SOLVED: To house an insulation transformer in a pressure vessel without increasing the size of the vessel, by separately supporting a rectifier and a capacitor of a rectifier circuit by two secondary winding support struts provided in the vessel. SOLUTION: The rectifier 2 and capacitor 3 of a rectifier circuit connected to the secondary winding of an insulation transformer 1 housed in a pressure vessel 4 are separately supported by secondary winding support struts 5 and 5. Namely, the full-wave rectifier and the capacitor of the rectifier circuit are separately supported by the struts 5 and 5 on both the left and right sides in the vessel 4. When the rectifier circuit is arranged in such a way, the size of the vessel 4 can be reduced compared with the conventional example and the strength balance of the vessel 4 can also be improved, because the highest part of the transformer 1 can be set to the central part of the cylindrical pressure vessel 4.

5. 发明专利

JPH0935896A TANDEM ACCELERATING DEVICE AND SLIT THEREOF 失效
公开(公告)号：JPH0935896A
公开(公告)日：1997-02-07
申请号：JP21646295
申请日：1995-07-20
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： IWATAKE TOMOYUKI , BABA TAKASHI
IPC分类号： G21K1/02 , H05H5/06
摘要： PROBLEM TO BE SOLVED: To use for both large current use of oxygen ion beam or the like and small current use of hydrogen ion beam with a single set of tandem accelerator device, and to suppress generation of a neutron due to collision of a hydrogen ion beam. SOLUTION: In a slit 16 arranged against a hydrogen ion beam, a through hole 15 for an ion beam I1 to diametrically contractibly pass through is formed in a central part of a bottom part 19, to cover an internal side surface with a tantalum material 18, to be formed in a bottomed cylindrical shape. This slit 16 is set up in an accelerating pipe of a tandem accelerator device 1, to operate a rotary shaft 10, so that the slit 16 can be arranged in either position of the ion beam line I1 or a position of taking refuge from the ion beam line I1 .

6. 发明专利

JP2001135500A PARTICLE ACCELERATOR 失效
公开(公告)号：JP2001135500A
公开(公告)日：2001-05-18
申请号：JP31680599
申请日：1999-11-08
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： KIMURA TOSHIO , SHIRAGAMI SATOSHI , IWATAKE TOMOYUKI
IPC分类号： H05H5/03 , H05H9/00
摘要： PROBLEM TO BE SOLVED: To provide a particle accelerator which prevents the fear of occurrence of insulation destruction near resistors for voltage sharing connected between acceleration electrodes. SOLUTION: Between resistors for voltage sharing 5, 5,... connected between a series of acceleration electrodes arranged in an acceleration tube 3, separators 20 to separate these resistors from each other by intervening between them are provided for each acceleration electrode, and each separator 20 is fitted on the outer circumference of a shield ring 4 connected to the corresponding acceleration electrode.

7. 发明专利

JPH11101899A IRRADIATION WINDOW 失效
公开(公告)号：JPH11101899A
公开(公告)日：1999-04-13
申请号：JP28277297
申请日：1997-09-29
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： IWATAKE TOMOYUKI , MIZUSAWA KENICHI
IPC分类号： G21K5/00
摘要： PROBLEM TO BE SOLVED: To improve a charged particle-passing rate while maintaining cooling ability by making the widths of a plurality of sash bars supporting and cooling a window foil gradually thin toward the center of the longitudinal direction. SOLUTION: The width of each sash bar 8 of an irradiation window 4a is gradually made thin toward the center of the longitudinal direction Y of each sash bar 8. Since charged particles have distribution of high density in the center part, the high density part of the charged particles can be efficiently passed since the opening ratio of an opening part 9 between the sash bars 8 in the center part of the longitudinal direction Y of each sash bar 8. As the result, the utilization efficiency of the charged particles is improved, and the processing efficiency of an object to be processed is improved. In addition, since the more the flow of the longitudinal heat of the sash bar 8 goes to an end, the larger it is, lowering of heat conduction property is prevented, damage and life lowering due to overheat of a window foil is prevented since the cooling ability of the window foil is maintained. The sash bar 8 and a frame 10 may be integrally formed by a wire-cutting method and the like, and mutually combined by being formed of different members.

8. 发明专利

JPH10335099A ION BEAM INCIDENT STRUCTURE OF TANDEM ACCELERATOR TUBE 失效
公开(公告)号：JPH10335099A
公开(公告)日：1998-12-18
申请号：JP17878497
申请日：1997-05-31
申请人： NISSIN HIGH VOLTAGE CO LTD
发明人： BABA TAKASHI , IWATAKE TOMOYUKI
IPC分类号： H05H5/06
摘要： PROBLEM TO BE SOLVED: To provide an ion beam incident structure of a tandem accelerator tube, capable of efficiently perform vacuuming in the tandem accelerator tube without deteriorating the lens effect of a magnetic field-type lens. SOLUTION: A vacuum chamber 11 in which a magnetic field-type lens 14 is installed on the outer periphery is connected to the entering side of an ion beam 16 of a tandem accelerator tube 12, a vacuum pump 13 is connected to the vacuum chamber 11 between the tandem accelerator tube 12 and the magnetic field lens 14, accelerating electrodes 15a, 15b positioned in the incident side of the ion beam 16 of the tandem accelerator tube 12 are projected in the direction of the magnetic field-type lens 14, the electrodes 15a, 15b are arranged near the magnetic field-type lens 14, the ion beam 16 is made to be incident on the tandem accelerator tube 12 in a state where the effect of the lens of the magnetic field-type lens 14 is maintained, and the vacuum resistance in the tandem accelerator tube 12, by the vacuum pump 13 is decreased.

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