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1. 发明专利

JPH09129148A GYROTRON POWER SOURCE 失效
公开(公告)号：JPH09129148A
公开(公告)日：1997-05-16
申请号：JP28329695
申请日：1995-10-31
申请人： TOSHIBA SYST TECH KK , TOSHIBA CORP
发明人： SUZUKI YASUO , SAITO FUSAO , ISHIGE TAKANORI
IPC分类号： H01J23/34 , H01J25/00
摘要： PROBLEM TO BE SOLVED: To modulate the high-frequency output without changing the energy of electromagnetic waves by the modulation of an anode power source. SOLUTION: This power source is provided with an electron gun section constituted of a cathode electrode 2 and an anode electrode 3, a body section 6 having a cavity resonator generating a large-power high frequency via the interaction between the electron beam generated by the cathode electrode 2 and the magnetic field, and a collector section 13 collecting the electron beam after the electromagnetic waves generated by the body section 6 are outputted to the outside. A collector power source 33 applying a voltage to a collector section 13 and an anode power source 31 applying a voltage to the anode electrode 3 using the cathode electrode 2 as the reference potential respectively and a body power source 32 applying a voltage to the body section 6 using the anode power source 31 as a reference potential are independently formed respectively. The anode power source 31 has a function to modulate the output, and it modulates the high frequency outputted from a gyroton.

2. 发明专利

JPH0980160A NUCLEAR REACTOR POWER MEASURING APPARATUS 失效
公开(公告)号：JPH0980160A
公开(公告)日：1997-03-28
申请号：JP23698195
申请日：1995-09-14
申请人： TOSHIBA CORP
发明人： ICHIGE MASAYUKI , ISHIGE TAKANORI
IPC分类号： G21C17/108 , G01T3/06
摘要： PROBLEM TO BE SOLVED: To provide a nuclear reactor power measuring apparatus having high accuracy and safety and excellent radiation resistance by a simple output measuring unit utilizing luminescence by a gas scintillation radiation detector. SOLUTION: The nuclear reactor power measuring apparatus 3 comprises a measuring vessel 4 for sealing gas therein inserted in the reactor core 2 of the reactor, a photoelectric converter 6 optically connected to the vessel 4, and a signal processor 8 electrically connected to the converter 6. The scintillation luminescence, radiated by ionizing radiation in the sealed gas of the radiation radiated from the core 2 generated in the vessel 4 is measured by the converter 6, converted into an electric signal, and the reactor power is monitored by the processor 8 from the electric signal.

3. 发明专利

JPH08190871A GYROTRON 失效
公开(公告)号：JPH08190871A
公开(公告)日：1996-07-23
申请号：JP41695
申请日：1995-01-06
申请人： TOSHIBA CORP
发明人： ISHIGE TAKANORI , KOBAYASHI NORIYUKI , MASUMOTO HIROSHI
IPC分类号： H01J25/00
摘要： PURPOSE: To reduce unwanted modes generated at a higher-order mode oscillation to stabilize the oscillating operation and output of a gyrotron by forming a horizontal groove on the cylindrical inner surface of a cavity resonator over the whole circumference so as to be perpendicular to the cylindrical axis. CONSTITUTION: A horizontal groove 2 having a width longer than 1/4 wavelength of high frequency wave and a depth about 1/4 wavelength is provided on the inner surface of a cavity resonator 1, whereby the cavity resonator inner surface forms a 1/4 wavelength type modulator. Since the axial electric field is advanced to the groove 2, reflected by the bottom surface of the groove 2, and canceled with the electric field just advanced on the surface with 180 deg. phase slippage, the axial electric field is difficult to build up. The width of the groove 2 is set narrower than half wavelength, whereby the circumferential electric field can not be advanced into the groove, and can be built up without being canceled. Since the axial electric field on the resonator 1 surface can be thus selectively canceled, the generation of an unwanted mode having the axial electric field is suppressed, and a mode necessary for generation of electromagnetic wave can be efficiently generated.

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