Patents by Inventor Jiaru SHI

Jiaru SHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9780426
    Abstract: The present disclosure relates to a phase shifter, an accelerator, and an operating method therefor. The phase shifter comprises a rotating part having a first hollow structure, the first hollow structure having a first cavity, a distance between a circumference of the cross section of the first cavity and a rotation center of the rotating part changing periodically and continuously in a peripheral direction, such that when the rotatory part rotates, a phase shift occurs between two adjacent microwave pulses at an outlet of the phase shifter. The operating method comprises transmitting a microwave pulse within the accelerator at a repetitive frequency v Hertz; the driving devices drives the rotating part to rotate at a rotation speed of n RPM, wherein n=15v*m, m is an odd number, 1, 3, 5 . . . , such that when transmitting a microwave pulse each time, the long axis of the oval cross section of the first cavity of the rotatory part is rotated to a horizontal or vertical state.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 3, 2017
    Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITED
    Inventors: Kejun Kang, Jiaru Shi, Ping Wang, Chuanxiang Tang, Huaibi Chen, Yaohong Liu, Xinshui Yan, Wenhui Huang
  • Publication number: 20170187085
    Abstract: The present disclosure relates to a phase shifter, an accelerator, and an operating method therefor. The phase shifter comprises a rotating part having a first hollow structure, the first hollow structure having a first cavity, a distance between a circumference of the cross section of the first cavity and a rotation center of the rotating part changing periodically and continuously in a peripheral direction, such that when the rotatory part rotates, a phase shift occurs between two adjacent microwave pulses at an outlet of the phase shifter. The operating method comprises transmitting a microwave pulse within the accelerator at a repetitive frequency v Hertz; the driving devices drives the rotating part to rotate at a rotation speed of n RPM, wherein n=15v*m, m is an odd number, 1, 3, 5 . . . , such that when transmitting a microwave pulse each time, the long axis of the oval cross section of the first cavity of the rotatory part is rotated to a horizontal or vertical state.
    Type: Application
    Filed: September 29, 2016
    Publication date: June 29, 2017
    Inventors: Kejun Kang, Jiaru Shi, Ping Wang, Chuanxiang Tang, Huaibi Chen, Yaohong Liu, Xinshui Yan, Wenhui Huang
  • Patent number: 9491842
    Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: November 8, 2016
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Huaibi Chen, Jianping Cheng, Shuxin Zheng, Jiaru Shi, Chuanxiang Tang, Qingxiu Jin, Wenhui Huang, Yuzheng Lin, Dechun Tong, Shi Wang
  • Patent number: 9426877
    Abstract: A standing wave electron linear accelerating apparatus and a method thereof are disclosed. The apparatus comprises an electron gun configured to generate electron beams; a pulse power source configured to provide a primary pulse power signal; a power divider coupled downstream from the pulse power source and configured to divide the primary pulse power signal outputted from the pulse power source into a first pulse power signal and a second pulse power signal; a first accelerating tube configured to accelerating the electron beams with the first pulse power signal; a second accelerating tube configured to accelerate the electron beams with the second pulse power signal; a phase shifter configured to continuously adjust a phase difference between the first pulse power signal and the second pulse power signal so as to generate accelerated electron beams with continuously adjustable energy at output of the second accelerating tube.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 23, 2016
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Chuanxiang Tang, Zhe Zhang, Qingxiu Jin, Jiaru Shi, Huaibi Chen, Wenhui Huang, Shuxin Zheng, Yaohong Liu
  • Patent number: 9148944
    Abstract: The present disclosure discloses an electron linear accelerator system. In the present disclosure, a fast-switching dual-path microwave system is proposed, wherein, one path can be directly connected to an accelerating tube, and the other path can be input into the accelerating tube after a magnitude of the microwave power is changed by devices such as an attenuator, a power divider, a pulse compressor or even an amplifier etc., so as to achieve fast switch of the power input into the accelerator and adjust the energy output by the accelerator.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: September 29, 2015
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Chuanxiang Tang, Jiaru Shi, Qingxiu Jin, Huaibi Chen, Wenhui Huang
  • Publication number: 20150084549
    Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 26, 2015
    Inventors: Huaibi CHEN, Jianping CHENG, Shuxin ZHENG, Jiaru SHI, Chuanxiang TANG, Qingxiu JIN, Wenhui HUANG, Yuzheng LIN, Dechun TONG, Shi WANG
  • Publication number: 20150084550
    Abstract: The present disclosure discloses an electron linear accelerator system. In the present disclosure, a fast-switching dual-path microwave system is proposed, wherein, one path can be directly connected to an accelerating tube, and the other path can be input into the accelerating tube after a magnitude of the microwave power is changed by devices such as an attenuator, a power divider, a pulse compressor or even an amplifier etc., so as to achieve fast switch of the power input into the accelerator and adjust the energy output by the accelerator.
    Type: Application
    Filed: September 16, 2014
    Publication date: March 26, 2015
    Inventors: Chuanxiang TANG, Jiaru SHI, Qingxiu JIN, Huaibi CHEN, Wenhui HUANG
  • Publication number: 20140185775
    Abstract: A standing wave electron linear accelerating apparatus and a method thereof are disclosed. The apparatus comprises an electron gun configured to generate electron beams; a pulse power source configured to provide a primary pulse power signal; a power divider coupled downstream from the pulse power source and configured to divide the primary pulse power signal outputted from the pulse power source into a first pulse power signal and a second pulse power signal; a first accelerating tube configured to accelerating the electron beams with the first pulse power signal; a second accelerating tube configured to accelerate the electron beams with the second pulse power signal; a phase shifter configured to continuously adjust a phase difference between the first pulse power signal and the second pulse power signal so as to generate accelerated electron beams with continuously adjustable energy at output of the second accelerating tube.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 3, 2014
    Inventors: Chuanxiang TANG, Zhe ZHANG, Qingxiu JIN, Jiaru SHI, Huaibi CHEN, Wenhui HUANG, Shuxin ZHENG, Yaohong LIU