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The successful candidate will play a leading role in the development and maintenance of a core X-ray Imaging Crystal Spectrometer (XICS) on the JT-60SA tokamak, including its calibration, operation, tomographic integration, and data analysis. This advanced diagnostic capability will be applied to study particle, thermal, and momentum transport across Ohmic, NBI, and RF-heated plasma scenarios. The proposed work also aims to exploit new real-time diagnostic data capabilities in combination with theory, state-of-the-art computational modeling, and a rigorous verification and validation (V&V) framework developed by PPPL in collaboration with national and international partners.

JT-60SA, located in Naka, Japan, is the largest and most powerful tokamak currently in operation worldwide. As a superconducting device capable of long-pulse operation with advanced plasma shaping and control, it provides a unique platform for developing the physics and technologies essential for future fusion reactors. JT-60SA is a major international collaboration between Japan and Europe under the Broader Approach framework, supporting and complementing ITER by exploring high-performance, steady-state plasma scenarios.

In addition to leading the implementation of the XICS on JT-60SA, the successful candidate will be responsible for its day-to-day calibration, operation, and data analysis using core Dopler âœ3D❠x-ray tomography. The candidate will actively participate in the JT-60SA research program, including proposing, executing, and contributing to experiments led by European and Japanese team members. The role involves primary responsibility for the development of the data analysis codes required to interpret diagnostic results. The candidate may collaborate with Ph.D. students or other postdoctoral researchers to achieve these goals. It is expected that the candidate will publish the results of their work in refereed journals and present them at major international conferences.

Experience has shown that applying deep diagnostic and operational expertise provides strong synergistic benefits and accelerates scientific progress. Consequently, direct, in-person involvement of researchers is essential for successful diagnostic and hardware implementation. The successful candidate will collaborate at PPPL in Princeton, New Jersey and with the JT-60SA facility/QST Laboratory teams.

Applicants should hold a Ph.D. in plasma physics, fusion science, atomic physics or a closely related field. Preference will be given to candidates with experimental experience on fusion devices and demonstrated expertise in tokamak diagnostics, x-ray measurements and plasma and core fusion physics. Experience in data analysis and proficiency in modern x-ray tomographic programming techniques are highly desirable. Areas of interest for development using the XICS diagnostic suite include thermal, impurity, and momentum transport, MHD equilibrium, as well as beam and RF heating and current drive. While not required, proficiency in Japanese is desirable and may facilitate day-to-day interactions on site. The European and Japanese teams operate primarily in English, so fluency in Japanese is not essential.

Princeton University is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability status, protected veteran status, or any other characteristic protected by law.

The University considers factors such as (but not limited to) scope and responsibilities of the position, candidate's qualifications, work experience, education/training, key skills, market, collective bargaining agreements as applicable, and organizational considerations when extending an offer. The posted salary range represents the University's good faith and reasonable estimate for a full-time position; salaries for part-time positions are pro-rated accordingly.

If the salary range on the posted position shows an hourly rate, this is the baseline; the actual hourly rate may be higher, depending on the position and factors listed above.

The University also offers a comprehensive benefit program to eligible employees. Please see this link for more information.

Please be aware that the Department of Energy (DOE) prohibits DOE employees and contractors from participation in certain foreign government talent recruitment programs. All PPPL employees are required to disclose any participation in a foreign government talent recruitment program and may be required to withdraw from such programs to remain employed under the DOE Contract.

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About Princeton University

Princeton University is a vibrant community of scholarship and learning that stands in the nation's service and in the service of all nations. Chartered in 1746, Princeton is the fourth-oldest college in the United States. Princeton is an independent, coeducational, nondenominational institution that provides undergraduate and graduate instruction in the humanities, social sciences, natural sciences and engineering.As a world-renowned research university, Princeton seeks to achieve the highest levels of distinction in the discovery and transmission of knowledge and understanding. At the same time, Princeton is distinctive among research universities in its commitment to undergraduate teaching.Today, more than 1,100 faculty members instruct approximately 5,200 undergraduate students and 2,600 graduate students. The University's generous financial aid program ensures that talented students from all economic backgrounds can afford a Princeton education.

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