Neutral Beam Heating Scientist(J17895)

职位描述

The Neutral Beam Injection (NBI) system is the key component of the heating and current drive system of the EXL-50U spherical torus. Currently, stable extraction of high-performance ion beams has been achieved using arc-discharge ion source technology. To meet the higher heating requirements of next-generation devices such as EHL-2 and future devices, there is an urgent need to develop an RF-driven negative ion source-based neutral beam injection system capable of achieving beam energies of 200 keV and even extending to the MeV level.

Therefore, we aim to recruit highly qualified professionals with research and development experience in RF-driven negative hydrogen ion source neutral beam injection systems. The candidate will lead breakthroughs and advancements in the following key technologies: overall ion source design, generation and extraction of negative hydrogen ions, beamline design and system integration, RF coupling technology, ion source parameter measurement and analysis, as well as commissioning and operation of the NBI system.

What you'll do:

● Design and Development of RF Negative Ion Sources：Responsible for system design of hydrogen negative ion sources, including subsystem design and component selection for RF power supplies, plasma chambers, accelerator configurations, vacuum systems, etc. Participate in preliminary planning, design optimization, and technical feasibility analysis of negative ion sources.

● Design and Development of Neutral Beam Injection Integrated Test Platform：Lead system design of high-power neutral beam injection test platforms, covering RF negative ion sources, neutralizers, deflection magnets, power measurement targets, diagnostics, power supply systems, cryogenic vacuum systems, control systems, negative ion/cesium-specific diagnostics, cooling water systems, gas supply systems, and auxiliary experimental subsystems. Engage in platform conceptualization, design optimization, and technical feasibility evaluations.

● Design and Development of Neutral Beam Injection Systems：Design and construction of neutral beam injection systems for magnetic confined fusion devices. Conduct research on critical physics and engineering challenges associated with large-scale RF negative ion-based neutral beam systems.

● Technical Support and Troubleshooting：Provide operational support to end-users (neutral beam operators, experimental researchers, etc.), resolving system anomalies. Implement upgrades, optimizations to enhance ion source/beamline performance and reliability.

● Project Management and Team Coordination：Serve as key project stakeholder, coordinating cross-functional teams in RF ion source R&D. Manage project timelines, budgets, and quality assurance to ensure delivery on schedule.

● Documentation and Reporting：Write technical documentation, test protocols, experimental logs, patents, and research papers. Contribute to technical reviews by delivering analyses and recommendations.

● Innovative Research and Technology Advancement：Lead/pioneer R&D initiatives for next-generation RF negative ion sources. Monitor and assess global advancements in RF negative ion technology, proposing and implementing improvement strategies.

任职要求

Who we’re looking for:

● Educational Background & Specialization

○ Degree in Plasma Physics, Electronic Engineering, Gas Discharge Physics, Accelerator Physics, or related disciplines.

○ Preferred: Research experience in RF technology, low-temperature plasma physics, or high-current ion source design.

● Technical Experience

○ More than 5 years of hands-on experience in R&D/maintenance of RF ion sources or similar high-energy physics/plasma devices.

○ Core Competencies: Proficiency in RF systems, electromagnetic field theory, plasma dynamics, and negative ion generation mechanisms.

○ Preferred: Practical experience with hydrogen negative ion sources or accelerator systems.

● Technical Skills

○ RF Expertise: Advanced skills in RF power supply design, debugging, and plasma experiment execution.

○ Simulation & Optimization: Mastery of COMSOL, ANSYS, or LSP for ion source modeling/optimization.

○ Data & Automation: Proficient in Python, MATLAB, or LabVIEW for data analysis and automated testing workflows.

● Soft Skills：Strong sense of responsibility, dedication, and proven teamwork aptitude.