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1. 发明专利

JP2003234074A VACUUM WINDOW FOR HIGH-FREQUENCY AND GYROTRON DEVICE 审中-公开
公开(公告)号：JP2003234074A
公开(公告)日：2003-08-22
申请号：JP2002030103
申请日：2002-02-06
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , MITSUNAKA YOSHIKA
IPC分类号： H01J25/00 , H01J23/40
摘要： PROBLEM TO BE SOLVED: To provide a gyrotron device which enables widening of its frequency band by raising cooling efficiency. SOLUTION: A vacuum window 14 for high-frequency is provided with a window base plate 23 which is made of synthetic diamond. Thin coatings 24 of fused silica which has a lower dielectric constant than that of the synthetic diamond are formed on both surfaces of the window base plate 23 corresponding to the inner section of the waveguide 12, and corresponding to only the areas inside the waveguide 12 where millimetric wave transmits. The coatings 24 function as antireflection coatings, and thereby the frequency band is widened. A cooling jacket 25 is disposed corresponding to a portion of the window base plate 23 without the coating 24 which protrudes from the waveguide 12, and the window base plate 23 is cooled by coolant. The window base plate 23 made of the synthetic diamond which has high thermal conductivity contacts directly with the coolant because the protruding portion of the window base plate 23 dose not have the coatings 24, and thereby the cooling efficiency can be raised, enabling transmission of high power long pulses. COPYRIGHT: (C)2003,JPO

2. 发明专利

JPH06196100A COLLECTOR BODY STRUCTURE FOR GYROTRON 失效
公开(公告)号：JPH06196100A
公开(公告)日：1994-07-15
申请号：JP34502892
申请日：1992-12-25
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , TSUNEOKA MASAKI , KASUGAI ATSUSHI , KARIYA TSUYOSHI
IPC分类号： H01J23/027 , H01J25/00
摘要： PURPOSE:To provide a collector body structure for a gyrotron having a high allowable heat load and capable of preventing the local melting of a collector. CONSTITUTION:A collector body structure for a gyrotron has a target plate 24 consisting of a high melting point metal circularly arranged in the area to which electron beams in a collector 21 collectively collide. According to this constitution, the local melting of the collector is prevented.

3. 发明专利

JPH06196099A GYROTRON DEVICE 失效
公开(公告)号：JPH06196099A
公开(公告)日：1994-07-15
申请号：JP34502792
申请日：1992-12-25
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , TSUNEOKA MASAKI , KASUGAI ATSUSHI , KARIYA TSUYOSHI
IPC分类号： H01J23/00 , H01J25/00
摘要： PURPOSE:To efficiently exhaust the generated gas by partitioning vacuum spaces except a passage for electron beam and high frequency wave from a resonance cavity part to a collector part by bulkheads, respectively, and exhausting air from the respective partitioned areas. CONSTITUTION:Bulkheads 13, 14 are provided between a high frequency output part 9 and a collector part 10 and between the high frequency output part and an electron gun part 1 side (reflecting mirror part), respectively. A plurality of bulkheads 15, 16, 17, 18 are provided in the collector part 10, and an ion pump 20 is connected to the parts partitioned by them through an exhaust pipe 19. On the other hand, the parts partitioned by the bulkheads 13, 14 are connected to an ion pump 22 through an exhaust pipe 21. The part extending from the bulkhead 14 to the electron gun part 1 side is connected to an ion pump 24 through an exhaust pipe 23. Thus, the electron gun 1 side, the high frequency output part 9 and the collector part 10 can be exhausted independently, the gas generated in each part is efficiently exhausted, and a gyrotron device can be enhanced in output.

4. 发明专利

JPH0482139A GYROTRON 失效
公开(公告)号：JPH0482139A
公开(公告)日：1992-03-16
申请号：JP19499790
申请日：1990-07-25
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , NAGASHIMA TAKASHI , KARIYA TSUYOSHI
IPC分类号： H01J25/00
摘要： PURPOSE:To finely correct the frequency deviation of an electromagnetic wave and the dislocation of an output electromagnetic-wave due to the deviation of arrangement of a mirror system or clue to the like by constructing a gyrotron in such a manner that a mirror may be made movable to finely adjust the fore and aft directions thereof, and also the rotating direction or the tilt angle thereof from outside the gyrotron. CONSTITUTION:A final-stage mirror 1 is made movable with three degrees of freedom. That is, the mirror l is moved parallelly in an x-axial direction by adjusting each of nuts 14 and then moving a movable-portion presser 6 in a an x'-axial direction. Also by moving a mirror-movable lever 7 in a direction of theta' or psi' a spherical guide presser 11 slides on a spherical guide 10 and accordingly a movable portion 3 is moved along the hemispherical surface of the movable-portion presser 6, so that the mirror 1 rotates round a mirror center 2 in the direction of theta or psi. The position of an electromagnetic-wave beam is thus adjusted by the mirror in accordance with the operational conditions of a gyrotron, so that the frequency deviation of an electromagnetic wave and the dislocation of an output electromagnetic-wave, or the like due to the deviation of arrangement of a mirror system or due to the like can be corrected.

5. 发明专利

JP2003123658A GYROTRON DEVICE 审中-公开
公开(公告)号：JP2003123658A
公开(公告)日：2003-04-25
申请号：JP2001313903
申请日：2001-10-11
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , KARIYA TSUYOSHI
IPC分类号： H01J25/00 , H01J23/40
摘要： PROBLEM TO BE SOLVED: To provide a gyrotron device in which heating of the ion pump by diffraction wave is prevented and a prescribed exhaust-air conductance can be steadily obtained. SOLUTION: The ion pump 12 of the gyrotron device is installed on the waveguide 11 through a branch tube 15 that is branched from the waveguide 11. And a sub-aperture 17 is provided at the end part in the tube axis direction of the waveguide 11.

6. 发明专利

JP2002163996A MANUFACTURING METHOD OF GYROTRON DEVICE 失效
公开(公告)号：JP2002163996A
公开(公告)日：2002-06-07
申请号：JP2000355158
申请日：2000-11-22
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： IMAI TAKESHI , SAKAMOTO KEIJI , MITSUNAKA YOSHIKA , KARIYA TSUYOSHI
IPC分类号： H01J25/00
摘要： PROBLEM TO BE SOLVED: To enable shortening of aging time and a stable and a stable long pulse actuation of a gyrotron device. SOLUTION: By making evacuation by a vacuum pump 22 while inputting a high frequency into a gyrotron tube main body 1 from high frequency generator 21, 23 when the gyrotron device is manufactured, outgas generated from a tube inner wall surface and parts surface in the tube in actuating is reduced beforehand. By this, a period required for aging of the gyrotron device is shortened, and the gyrotron device enabled to output an actuating pulse of a long pulse width is provided.

7. 发明专利

JP2001338586A MODE CONVERTER AND GYROTRON USING THE SAME 失效
公开(公告)号：JP2001338586A
公开(公告)日：2001-12-07
申请号：JP2000158729
申请日：2000-05-29
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： SAKAMOTO KEIJI , KASUGAI ATSUSHI , MITSUNAKA YOSHIKA
IPC分类号： H01J25/00 , H01J23/40 , H01J25/02 , H01P1/16
摘要： PROBLEM TO BE SOLVED: To suppress parasitic oscillation and improve conversion efficiency of a mode converter that converts higher mode millimeter waves, generated in a resonance cavity of a gyrotron and propagating within a circular waveguide, into an electromagnetic beam propagating in the free space. SOLUTION: A roughly circular waveguide constituting a mode converter 7 of a gyrotron of this invention has a region in which its internal cross-section changes from a true circular form to a noncircular form in a region of 0 to 5 mm from an entrance edge 27 toward a radiating opening 23, increasing deformation degree of the shape from there. On that reason, the possibility of the vicinity of the entrance of the mode converter constituting an undesirable resonance cavity is low, and it is possible to reduce parasitic oscillation generated when the mode converter is built in the gyrotron.

8. 发明专利

JPH0794106A GYROTRON DEVICE 失效
公开(公告)号：JPH0794106A
公开(公告)日：1995-04-07
申请号：JP23440993
申请日：1993-09-21
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TSUNEOKA MASAKI , KASUGAI ATSUSHI , SAKAMOTO KEIJI , KARIYA TSUYOSHI
IPC分类号： H01J25/00
摘要： PURPOSE:To certainly ensure electric insulation between a body and a support or a collector by providing an insulator jacket between the body to envelop a resonant cavity and a magnetic field device to supply a magnetic field to the cavity. CONSTITUTION:A gyrotron tube has the body 11 mechanically supported by supports 18, 19. To supply a magnetic field to the resonant cavity 4, a grounded magnetic field device 21 such as a superconductive magnet is equipped outside a vacuum container 13. An insulator jacket 22 is provided between the body 11 and the support 19 or the device 21 to electrically insulate both of them. The jacket 22 made of porcelain or ceramics has both inside and outside faces painted with conductive paint to form conductive films. The inside conductive film is given the same potential as the body 11 has and the outside conductive film is given ground potential to prevent the occurrence of an air layer on the wall face and the deterioration of withstand voltage.

9. 发明专利

JPH05335801A 失效
公开(公告)号：JPH05335801A
公开(公告)日：1993-12-17
申请号：JP3864291
申请日：1991-03-05
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： NAGASHIMA TAKASHI , SAKAMOTO KEIJI , KARIYA TSUYOSHI
IPC分类号： H01J23/12 , H01J25/00 , H01P1/08
摘要： PURPOSE:To obtain a microwave through-window structure in which the transmission frequency band characteristic of the through-window is easily adjusted. CONSTITUTION:Dielectric-made through-windows 3, 4 provided in waveguides 1, 2 in the microwave through-window structure are made of ceramics whose dielectric constant differs from the azimuth angle and the through-window is formed to be a mount structure movable in the circumferential direction. Then the angle of the crystalline axis of the ceramics is varied to change the dielectric constant thereby easily adjusting the transmission frequency band characteristic of the through-window.

10. 发明专利

JPH04368752A GYROTRON DEVICE 失效
公开(公告)号：JPH04368752A
公开(公告)日：1992-12-21
申请号：JP14337591
申请日：1991-06-14
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TSUNEOKA MASAKI , SAKAMOTO KEIJI , NAGASHIMA TAKASHI , KARIYA TSUYOSHI , OKAZAKI YUKIO
IPC分类号： H01J25/00
摘要： PURPOSE:To provide a gyrotron device capable of stable operation and preventing the hazard of equipment breakdown by absorbing the vibration of a collector part due to the boiling of a cooling water with a bellows so as not to transmit it except a collector part, e.g. a resonant cavity part or an electron gun part. CONSTITUTION:In a gyrotron device, an electron gun part 1 for generating an electron beam, a resonant cavity part 2 for performing the interaction with the electron beam in screw motion, a collector part 4 for capturing the electron beam after the interaction, are sequentially combined; the resonant cavity part and the collector part are independently and mechanically held, and both are held and combined in a vacuum sealing manner with a bellows 6 so as to accomplish the above purpose.

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