Title:
PLC-BASED BNCT HIGH-DUTY-RATIO ECR ION SOURCE EFFICIENT BEAM OUTPUT SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/045368
Kind Code:
A1
Abstract:
A PLC-based BNCT high-duty-ratio ECR ion source efficient beam output system and method. An ECR ion source comprises a microwave generation and microwave transmission feeding system, a discharge chamber, an extraction system, a vacuum system, a beam measurement system, a power source system, a high voltage system and a control system. The extraction system uses a three-electrode structure, comprising a plasma electrode, a suppression electrode and a ground electrode. The plasma electrode is at a positive high potential, the suppression electrode is at a negative potential, and the ground electrode is at a ground potential. After delay processing is performed by using the steps of the method, the beam output difficulty of an ECR ion source is greatly reduced, and beam output can be completed with a single click; and the method comprises sequential steps, which can be implemented by means of a PLC or an upper computer program, and same is easily integrated into an original control system.
Inventors:
OUYANG HUAFU (CN)
XUE KANGJIA (CN)
LV YONGJIA (CN)
XIAO YONGCHUAN (CN)
CAO XIUXIA (CN)
LIU SHENGJIN (CN)
XUE KANGJIA (CN)
LV YONGJIA (CN)
XIAO YONGCHUAN (CN)
CAO XIUXIA (CN)
LIU SHENGJIN (CN)
Application Number:
PCT/CN2022/094088
Publication Date:
March 30, 2023
Filing Date:
May 20, 2022
Export Citation:
Assignee:
SPALLATION NEUTRON SOURCE SCIENCE CENTER (CN)
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCIENCES CAS (CN)
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCIENCES CAS (CN)
International Classes:
H01J27/18; H01J27/02
Foreign References:
| CN113990726A | 2022-01-28 | |||
| CN102117727A | 2011-07-06 | |||
| US20110186749A1 | 2011-08-04 |
Other References:
ZHOU CHANGGENG, HU YONG-HONG, WU CHUN-LEI, LI YAN, LOU BEN-CHAO: "An ECR Ion Source in Which Both the Direct Current Beams and the Microsecond Pulse Beams Can Be Produced", NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY, HEDIANZIXUE YU TANCE JISHU, CN, vol. 30, no. 5, 20 May 2010 (2010-05-20), CN , pages 622 - 625, XP093054876, ISSN: 0258-0934
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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