Mechanical Technology Group
Brief Introduction
The Mechanical Technology Group provides comprehensive technical support for the entire institute, including project planning, system integration, and the design, construction, installation, operation, and maintenance of accelerator mechanics.
Currently, The group undertakes and participates in in several national major science and technology infrastructure projects, covering both research and maintenance. These include the operation and maintenance of the Heavy Ion Research Facility in Lanzhou (HIRFL); the overall mechanical design of the 300MeV proton/heavy-ion accelerator for the Space Environment Simulation Research Infrastructure (SESRI) at Harbin Institute of Technology; the construction of the Proton Radiation Effects Facility (PREF) at the Xinjiang Technical Institute of Physics & Chemistry; and for the High Intensity heavy-ion Accelerator Facility (HIAF)—the group is involved in civil layout design, overall mechanical design, core equipment development, installation, and maintenance.
At the same time, the group actively promotes the application of digital twin technology in major scientific infrastructures and is committed to the independent development of compact application accelerators. Examples include civil planning and full-facility 3D digital modeling for the Second generation heavy Ion Medical Machine (SIMM), as well as pioneering the development of a high-precision intelligent rotating beam delivery system.
Research Fields
1. Mechanical overall design of accelerator and virtual reality technology
2. Design and development of complex structured regarding accelerator components
3. Remote disassembly and assembly technology
4. Structural and simulation design of physical experiment terminals
5. Nonlinear dynamics and kinematics simulation analysis
6. Building Information Modeling and Digital Twin technology for large - scale scientific projects
Achievements
Publications
1. Research on automatic positioning technology for magnetic field measurement of multipole magnet harmonic coil in heavy ion accelerator.
2. Research on photogrammetry-based positioning of heavy ion radiotherapy and tumor target monitoring.
3. A new alignment method for HIMM magnetic field measurement system.
4. The 300 MeV proton and heavy ion accelerator complex for SESRI project in China.
5. Alignment of heavy ion therapy center vertical terminal.
6. The Study on the Quench Helium Release Process of HFRS Superconducting Magnet.
7. A novel positioning method for Hall magnetic field measurement of heavy ion accelerator.
8. Vibration of the scanning magnet in the Space Environment Simulation Research Infrastructure
9. STRUCTURAL DESIGN OF THE INJECTION AND EXTRACTION ELECTROSTATIC SEPTUM OF PREF.
10. PROGRESS IN THE ENGINEERING DESIGN AND INSTALLATION OF THE HIAF PROJECT.
11. Wedge Mechanism Based on the Regulation of Suspension Bracket of Thin Quadrupole Group.
12. Design of an efficient collector for the HIAF electron cooling system.
13. High-precision measurement of the magnetic axis of the HIAF electron cooling device coil
Patents:
1. An on-line three-dimensional adjustment device and method for two-pole magnet vacuum chamber of rotating frame
2. The present invention relates to multi-angle shared rotary radiotherapy head system and its therapeutic terminal
3. A double drag chain system for rotary machine frame
4. The fixing device and usage method of the non-evapotranspiration suction plate in the accelerator vacuum chambe
5. Irradiation terminal and application based on combined rotating beam line
6. A treatment terminal based on multi-channel, small inertia rotating beam line
7. The present invention relates to a guide positioning mechanism and its insertion and extraction device for accelerator strong radiation zone
8. A high-power and high-voltage power supply device for electronic cooling of high-current electron beams
9. High-precision assembling device and high-precision assembling method for superconducting multi-pole combined magnet
10. The invention relates to an elastic multi-filament probe target head for measuring the beam current profile of an accelerator
11. A movable low-temperature collimator
12. The invention relates to a fixing and adjusting device for high-frequency cavity end face magnet and a linear accelerator
13. Target collimation positioning module, device and target shooting system
14. Particle beam deflection device used in annular particle accelerator
15. System and method for monitoring and correcting displacement of patient guiding swing and target area in real time
16. For cooling storage in the ring out of the charged particles injected into the electrostatic deflection plate
17. The invention relates to an elastic multi-filament probe target head for measuring the beam current profile of an accelerator
18. The invention relates to a method for laying and measuring a first-level control network for tunnel collimation of a particle accelerator
19. The invention discloses a high-precision lofting device and a high-precision lofting method for plane coordinates of a laser tracker
20. A beam distribution system and irradiation terminal based on multi-angle irradiation
21. A method and system for positioning and real-time monitoring of rotating beam terminal of radiotherapy device
22. High-accuracy three-combination quadrupole lens
23. Winding device of saddle-shaped copper conductor coils
24. Punched sheet detection method and measurement seat thereof for detection
25. for manufacturing large-size superconducting magnet laminated iron core
26. Method for manufacturing internal conducting rod of large-scaled high-frequency resonant cavity
27. A radio frequency quadrupole field monoplanes pole head modulation line processing method
28. Four-wing type radio frequency quadrupole field accelerator cavity hydrogen stove braze welding method
29. Torsional pendulum magnetic pole unit manufacturing method
30. Four-wing type radio frequency quadrupole field cavity manufacturing method of the high-precision single-wing
31. Radio frequency quadrupole field electrode head curved surface measuring method of three-dimensional space
32. Large curvature high-precision deflection magnet manufacturing method
33. Window type irregular saddle-shaped coil winding device and a winding method
34. Vacuum inner four-channel shaped deflection magnet manufacturing method
35. Four airfoils radio frequency quadrupole field accelerator hydrogen stove braze welding π method for lower cavity body
36. Vacuum inner four-channel shaped deflection magnet manufacturing method
37. Vacuum pipeline type beam current regulator
38. With motion compensation device for high-pressure feed-in is
39. IRRADIATION TERMINAL BASED ON COMBINATION OF ROTATING BEAM LINES AND APPLICATION OF THE SAME(PCT:The United States, Europe, Japan, South Korea)
Awards:
1. The 300MeV Proton Heavy Ion Accelerator for National Major Demands of Space Radiation in Aerospace was awarded the First Prize of Science and Technology Progress of Gansu Province in 2024.
2. The Proton Displacement Damage Effect Simulation Test Facility for National Major Demands in Aerospace was awarded the Special Prize of Technological Invention by the Chinese Nuclear Society in 2025.
3. The Third Chinese Academy of Sciences Staff Skills Competition: Third Prize in the Mechanical Engineering Field (Team).
4. The Third Chinese Academy of Sciences Staff Skills Competition: Sixth Place in the Mechanical Engineering Field (Representative Work Display).
5. The First Chinese Academy of Sciences Staff Skills Competition: Merit Award in the Mechanical Engineering Field (Team).
6. The First Chinese Academy of Sciences Staff Skills Competition: Fourth Place in the Mechanical Engineering Field (Representative Work Display).
Photos
Contact
Contact: ZHENG Yajun
Email:zhengyj@impcas.ac.cn


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