(Fixed Term Researcher)

(J-PARC Center)

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One person

• Number of employees

• Recruitment Field

Research and Development on Accelerator-driven Nuclear Transmutation System (ADS)

(Summary)

JAEA is conducting R&D on the development of accelerator-driven nuclear transmutation systems (ADS) for volume reduction and detoxification of radioactive waste. In the R&D on the liquid lead-bismuth target for ADS, we are studying thermal hydraulics properties and materials corrosion behavior with using liquid lead-bismuth test loops, and also developing sensors dedicated to liquid lead-bismuth such as flow meters and oxygen concentration sensors. In the R&D on the proton beam technology, measurement of nuclear reaction cross section with using the J-PARC's GeV-energy proton beam, and development of high-intensity proton beam monitors and superconducting accelerators for ADS are ongoing. In this theme, the researcher will study on one of these topics according to the researcher's specialty.

(This R&D will be implemented under the grant for "R&D on nuclear transmutation system with using a proton beam for reduction of radioactive waste" of the MEXT (Ministry of Education, Culture, Sports, Science and Technology - Japan))

• Division assigned to

Nuclear Transmutation Division, J-PARC Center, Japan Atomic Energy Agency

• Place of employment

Nuclear Science Research Institute, Japan Atomic Energy Agency

2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki , Japan

• Salary, etc…

Commensurate salary with the applicant's work experience, Social Insurance, Commutation allowance, Institute family residence and bachelor's dormitory are available.

• Terms of employment

Contract term: One year

(The contract term can be extended up to five years upon annual review of research achievements on the condition of obtaining the grant for "R&D on nuclear transmutation system with using a proton beam for reduction of radioactive waste" from the MEXT.)

Should you achieve outstanding results during your temporary employment, you could be offered a position as permanent staff.

• Trial employment period

6 months

• Holiday

Weekend (Saturday and Sunday), National holidays, Year-end holidays, Paid holidays

• Qualification requirements
• Having a Ph.D. degree with at least one year of research experience as a full-time researcher such as a postdoctoral fellow after obtaining the Ph. D.
• Preferably having experience in research and development in the fields of thermal-hydraulics, materials development, radiation measurement or accelerator development
• Necessary documents and application procedures
• Curriculum Vitae (using JAEA form) (PDF, WORD)
• Document of the accomplishment on your major field (using JAEA form)(PDF, WORD)
• Research career history (free A4 format), list of publications in which the applicant's names are underlined (free A4 format) and reprints of major papers
• Certificate of Ph. D Degree
• Recommendation letter(s) from 1 or 2 recommender(s) (free format)
• The recommender(s) should be familiar with the applicant's research theme and personality, and must not be JAEA's staff.
• It is preferable to select the applicant's current supervisor for one recommender.
• Please submit the letter directly by the recommender to the e-mail address below. The letter needs to include an autograph signature of the recommender, and in the pdf format.
• Consent form for handling of personal information (PDF, WORD)
• This form is only required for residents of EEA (European Economic Area) member countries, i.e., EU member countries, Iceland, Liechtenstein, Norway or the United Kingdom.
• Deadline for submission of application

January, 9, 2026 (Fri) (Japan Standard Time)

• Address of submission of application
• Subject of e-mail: Application documents for a senior PDF of J-PARC Center (Applicant's Name)
• All documents should be in the pdf format.
• Application documents that do not meet the requirements, such as the absence of the subject, can't be accepted.
• Recommendations should be sent directly by the recommender to the email address listed below.
• E-mail: jinji-saiyogenkaken11[at] (Replace [at] with @)
• Document examination

Examinees will be decided based on the review of application documents. Review result of the document screening and the details of the recruitment examination will be informed to the e-mail address specified in the application documents.

• Recruitment examination
• Examination of research achievement (Oral presentation using PowerPoint file and Q&A)
• Oral examination/Interview
• Date of recruitment examination (planned)

Late January to mid-February 2026

• Place for Recruitment Examination (planned)

Nuclear Science Research Institute,

Japan Atomic Energy Agency,

2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki , Japan

or

via the web meeting system specified by JAEA

• Result of Recruitment Examination

The result will be announced by a letter after the recruitment examination.

• Date of adoption (tentatively)

April 1, 2026

• Travel Expenses

We will pay travel expenses for the recruitment examination according to the JAEA's provision.

• Reference

Marina Aoki

Human Resources Development Department,

Japan Atomic Energy Agency

2-4, Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken,

TEL: FAX:

E-Mail: jinji-saiyogenkaken11[at] (Replace [at] with @ )

(Reference related to the recruitment field)

Fujio Maekawa, Division Head,

Nuclear Transmutation Division, J-PARC Center,

Japan Atomic Energy Agency

TEL:

E-Mail: jinji-saiyogenkaken11[at] (Replace [at] with @ )

• Points to note
• The successful applicant is supposed to submit a medical in English certificate taken within 6 months (including height, weight, eyesight, urinalysis, and chest X-ray).
• Candidates without Japanese Nationality are required to have the certificate of eligibility by the date of adoption in order to obtain a work permit in Japan.
• Treatment of personal information

Submitted personal information will be used for recruitment. Personal information of employee will be used for employment control. Other personal information will be scrapped 1 year later.