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21. 发明专利

JPH0676997A PARTICLE ACCELERATOR 失效
公开(公告)号：JPH0676997A
公开(公告)日：1994-03-18
申请号：JP22731292
申请日：1992-08-26
申请人： HITACHI LTD
发明人： MIYATA KENJI , HIRAMOTO KAZUO , NISHI MASATSUGU
IPC分类号： H05H13/04
摘要： PURPOSE:To cool both synchrotron and betatron vibrations of a charged particle beam in a short time, using a compact device. CONSTITUTION:Regarding a particle accelerator equipped with a means 9 to 12 for dampening either of a synchrotron vibration or a betatron vibration with a non-conservative force, betatron.tune as the frequency of a lateral betatron vibration per peripheral motion for an equilibrium orbit, is set at a synchro.etatron resonance point or in the vicinity thereof. According to this construction, the betatron and synchrotron vibrations can be concurrently cooled due to interaction.

22. 发明专利

JPH05109499A ACCELERATOR, EJECTING METHOD FOR CHARGED PARTICLE, AND EJECTING DEVICE FOR CHARGED PARTICLE 失效
公开(公告)号：JPH05109499A
公开(公告)日：1993-04-30
申请号：JP26735191
申请日：1991-10-16
申请人： HITACHI LTD , KAGAKU GIJUTSUCHO HOSHASEN IGA
发明人： HIRAMOTO KAZUO , NISHI MASATSUGU , ITANO AKIHITO
IPC分类号： H05H7/10 , H05H13/04
摘要： PURPOSE:To provide an accelerator capable of extracting many outgoing beams, i.e., ejecting a large current. CONSTITUTION:The equilibrium orbit of charged particles by the deflecting electromagnets 3 of an accelerator or multi-pole electromagnets 4 of six poles or more is moved, and the tuning of the charged particles is changed. When the equilibrium orbit of the charged particles by the deflecting electromagnets 3 or the multi-pole electromagnets 4 of six poles or more is moved, tuning can be adjusted. The orbit grade of outgoing beams is kept constant when tuning is changed, thus the beam ejection is easily controlled, and the accelerator capable of ejecting a large current can be provided.

23. 发明专利

JPH04106900A ADJUSTMENT OF BEAM INCIDENT CURRENT, CIRCULAR ACCELERATOR 失效
公开(公告)号：JPH04106900A
公开(公告)日：1992-04-08
申请号：JP22446190
申请日：1990-08-28
申请人： HITACHI LTD
发明人： HIRAMOTO KAZUO , HIROTA JUNICHI , NISHI MASATSUGU
IPC分类号： H05H7/08 , H05H13/04
摘要： PURPOSE:To easily maximize an incident current value by changing a pulse current wave height value of a pulse electromagnet for incidence so as to adjust to make a beam incident current the maximum. CONSTITUTION:A device consists of an incider 1, pulse electromagnets 6 to 9 for incidence, a tetrapolar electromagnet 10, a deflection electromagnet 11 and the like, and a width of a pulse current to flow to the pulse electromagnets 6 to 9 for incidence is kept constant while changing its wave height value. Consequently, a time in which a closed orbit returns from an incider position to a position after incidence finish can be continuously and easily changed. Accordingly, adjustment to maximize an incident current value of a beam can be facilitated.

24. 发明专利

JPH0416754B2 失效
公开(公告)号：JPH0416754B2
公开(公告)日：1992-03-25
申请号：JP21946386
申请日：1986-09-19
申请人： HITACHI LTD
发明人： MICHIGUCHI YOSHIHIRO , HIRAMOTO KAZUO , NISHI MASATSUGU , ABE TSUTOMU
IPC分类号： G01S13/88 , G01S13/90 , G01V3/00 , G01V3/38

25. 发明专利

JPH03156900A OPERATING METHOD FOR CIRCULAR ACCELERATOR AND CIRCULAR ACCELERATOR 失效
公开(公告)号：JPH03156900A
公开(公告)日：1991-07-04
申请号：JP29505089
申请日：1989-11-15
申请人： HITACHI LTD
发明人： HIRAMOTO KAZUO , HIROTA JUNICHI , NISHI MASATSUGU , NAKAYAMA HISAHIDE
IPC分类号： H05H13/04
摘要： PURPOSE:To accelerate and accumulate a large-current beam by setting the target output values of auxiliary constituting apparatuses based on the output value of a main constituting apparatus. CONSTITUTION:A deflecting electromagnet 1 most hard to control is made a main constituting apparatus, its current is measured 6, and other electromagnets 2-4 and a high-frequency accelerating cavity 5 are controlled as auxiliary constituting apparatuses using the measured current as a reference. A control device 20 controls the electromagnet 1 with the output of a current measuring device 6. Target values of currents of the four-pole electromagnet 2, a steering electromagnet 3 and the other electromagnet, the high-frequency power and resonance frequency of the cavity are set based on the actual current value of the electromagnet 1 obtained in real time, and constituting apparatuses are controlled.

26. 发明专利

JPH0315200A ACCELERATION CAVITY AND CIRCULAR TYPE ACCELERATOR AND CONTROL METHOD FOR SYNCHROTRON ACCELERATION 失效
公开(公告)号：JPH0315200A
公开(公告)日：1991-01-23
申请号：JP6423490
申请日：1990-03-16
申请人： HITACHI LTD
发明人： HIROTA JUNICHI , NISHI MASATSUGU
IPC分类号： H05H7/18 , H05H13/04
摘要： PURPOSE:To accelerate synchrotron efficiently by providing a means which changes the coupling constant of a high frequency acceleration cavity, and thereby efficiently applying high frequency power onto a high frequency acceleration cavity. CONSTITUTION:A beam 9 is accelerated by acceleration voltage V0 generated in a place close to an acceleration gap 13 when it passes through a beam hole 12, said acceleration voltage V0 is built up by power applied within a cavity 11 through a high frequency antenna 31 of a power coupler 3 from a high frequency power supply 4. It therefore depends on the magnetic combination of the antenna 31 and the cavity 11 whether or not power is efficiently applied within the cavity 11. When the magnitude of current flowing in a power coil 321 is changed, a power coupling bias device 32 of the power coupler 3 changes the strength if the magnetic field of a bias to be generated on a power magnetic body 322 so that the strength of a high frequency magnetic field pulled in from a ceramic window 33 is thereby controlled. As a result, high frequency current is changed so that the high frequency magnetic field at the antenna 31 is thereby changed.

27. 发明专利

JPS6467899A INCIDENCE AND ACCUMULATION OF CHARGED PARTICLE TO CIRCULAR ACCELERATOR 失效
公开(公告)号：JPS6467899A
公开(公告)日：1989-03-14
申请号：JP22324587
申请日：1987-09-07
申请人： HITACHI LTD
发明人： HIRAMOTO KAZUO , HIROTA JUNICHI , NISHI MASATSUGU
IPC分类号： H05H7/08 , H05H13/04
摘要： PURPOSE:To obtain a high accumulated current easily by decreasing the excitation quantity of a six-pole electromagnet or changing the excitation quantity of four-pole electromagnets so that the betatron frequency is separated from the preset value after the incidence start of charged particles. CONSTITUTION:A six-pole electromagnet 11 is installed on the linear section of a circular accelerator, it is excited in advance before charged particles are fed from an inflector 7. On the other hand, focusing and nonfocusing four-pole electromagnets 2, 3 are adjusted in advance so that the horizontal tuning is set near an integer +1/3 or an integer +2/3. The excitation quantity of the six-pole electromagnet 11 is increased or the excitation quantity of the four-pole electromagnets 2, 3 is changed so that the tuning is separated from the preset value after the incidence start of charged particles. A high current can be thereby accumulated easily.

28. 发明专利

JPS63255683A APPARATUS FOR IMAGING EXTRANEOUS SUBSTANCE 失效
公开(公告)号：JPS63255683A
公开(公告)日：1988-10-21
申请号：JP9036787
申请日：1987-04-13
申请人： HITACHI LTD
发明人： MICHIGUCHI YOSHIHIRO , NISHI MASATSUGU , HIRAMOTO KAZUO
IPC分类号： G01S7/04 , G01S13/02 , G01S13/04 , G01S13/86 , G01S13/89
摘要： PURPOSE:To inspect a person's belongings rapidly by a method wherein a body to be inspected is scanned by an electric wave beam controlled so that the intensity of reflection from a living body be smaller than a value set beforehand and the intensity distribution of a reflected electric wave at each scanning position is imaged and displayed. CONSTITUTION:The direction of radiation of an electric wave beam of an antenna 1 is varied by a scanning device 2. An intermittent electric signal from an oscillator 3 is transmitted to the antenna 1 through a transmission-reception switch 4 and radiated as an electric wave beam to a person to be inspected. Next, a reflected wave from the person to be inspected, a dangerous weapon belonging to the person or the like is detected by the antenna 1 and amplified 5 through the switch 4. Thereafter it is detected by a peak detector 6 and a peak value is outputted therefrom. Then, the peak value of the reflected wave is converted 7 into a digital amount and stored in an image memory 8. Moreover, the image of the person to be inspected which is obtained by a television camera 9 and the content of the memory 8 are superimposed in a superimposing device 10, and an image obtained in the device 10 is displayed in a display unit 11. The person's belongings can be inspected rapidly in this way.

29. 发明专利

JPS63159781A BURIED BODY SURVEYING DEVICE 失效
公开(公告)号：JPS63159781A
公开(公告)日：1988-07-02
申请号：JP30747986
申请日：1986-12-23
申请人： HITACHI LTD , TOKYO GAS CO LTD
发明人： MICHIGUCHI YOSHIHIRO , HIRAMOTO KAZUO , NISHI MASATSUGU , ABE TSUTOMU , OKADA MASUMI
IPC分类号： G01V3/12 , G01S7/28 , G01S7/282 , G01S13/88
摘要： PURPOSE:To reduce an area where surveying is impossible nearby the ground surface and to increase survey depth by varying the pulse width, i.e. frequency and pulse amplitude of a radio wave oscillated by an oscillator according to observation depth. CONSTITUTION:A transmitting antenna 1 is applied with a pulse signal from the oscillator 5, which is controlled by a control signal generator 6 to vary the amplitude and pulse width of the oscillated pulse signal. A signal received by a receiving antenna 2 is amplified 7 and further sampled by a sampler 8. This sampled signal is led to a video processor 9, where the signal is made into video and displayed 10. Further, the video processor 9 inputs the position of a carriage 3 where the antennas 1 and 2 are mounted from a position detector 11. Then, the amplitude and frequency of the oscillated pulse signal are varied according to the observation depth and the pulse width is made short as the time of an observation nearby the ground surface, so the area where detection is impossible owing to ground surface reflection is reducible. Further, the attenuation of a reflected wave from a deep surveyed target can be decreased, so the survey depth can be increased.

30. 发明专利

JPS63115078A SURVEYING METHOD FOR UNDERGROUND BURIED BODY 失效
公开(公告)号：JPS63115078A
公开(公告)日：1988-05-19
申请号：JP25978686
申请日：1986-10-31
申请人： HITACHI LTD , TOKYO GAS CO LTD
发明人： HIRAMOTO KAZUO , MICHIGUCHI YOSHIHIRO , NISHI MASATSUGU , OKADA MASUMI
IPC分类号： G01S13/88 , G01S7/42 , G01V3/12
摘要： PURPOSE:To survey the position of an underground buried body with high accuracy by radiating a radio wave on the surface of the ground, finding ground surface reflectance with respect to >=2 kinds of frequencies, and finding the radio wave propagation speed in the ground by using the dielectric constant of the ground obtained from the relation between the frequencies and reflectance. CONSTITUTION:A rectangular wave pulse 13 from a rectangular wave oscillator 12 controlled by a controller 14 is radiated by a transmitting antenna 15 at right angles to the ground surface. Part of the radiated radio wave is reflected by the ground surface and the remainder penetrates the ground. A receiving antenna 16, therefore, detects a ground surface reflected wave first and then a reflected wave from the buried body 2. Then the time variation of the received signal found through a sampling circuit 17 is stored 18. Further, the received signal is stored 21 and this signal and the signal stored in a device 18 are used by a computer 20 to finds the reflectance of the ground surface with respect to two preset frequencies. Then, the reflection factors of the ground which are found from the relation between the frequencies and reflectance are used to find the propagation speed of the radio wave in the ground. Then, variation in the reception time of the received signal from the buried body 2 is obtained and aperture synthesis processing 22 is carried out to survey the position of the buried body.

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