Detailed information

Update Now recruiting
Date of update : 2025/07/17 End date of accepting applications : 2025/10/04
Update Now recruiting
Date of update : 2025/07/17
End date of accepting applications : 2025/10/04

Work location : Kanto district - Saitama

Date of publication : 2024/10/07

Seeking a Postdoctoral Researcher (W24187)(Research Instruments Group)

D124100443

National research institute / Independent administrative institute

Research field : Natural Science - Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics

Researcher/Postdoc level : Contract employee - Nontenured - Non-tenure track - Probationary period present

Job description

  • Background of the recruitment and description of the project

    The Research Instruments Group is responsible for the operation, maintenance, management, and enhancement of the core research equipment and related infrastructure at the Radioactive Isotope (RI) Beam Factory, including the BigRIPS in-flight separator. The group produces RI beams using BigRIPS, delivers them to experimental users, and conducts physics research such as the search for undiscovered radioactive isotopes, and improvement of RI beam production methods. Additionally, the group develops technologies necessary to upgrade core experimental instrumentation. Through these activities, the group serves as the driving force for the continuous and efficient development of RI Beam Factory's research endeavors and international competitiveness.

    Keywords: Nuclear physics, Unstable nuclei, RI beam, Ion optics

    For more information, please refer to the following webpage:
    ・Research Instruments Group

    https://www.riken.jp/en/research/labs/rnc/res_instrum/index.html
  • Work content and job description

    The successful candidate will be affiliated with the BigRIPS team and is expected to actively participate in RI-beam production aiming at delivering the beams for user experiments performed with the BigRIPS in-flight separator. Based on expertise cultivated through the RI-beam production experiences, the successful candidate is expected to play a key role in the development of efficient RI-beam production methods at BigRIPS through ion-optics optimization combined with energy degraders, focusing particularly on heavier RIs such as Z > 60. This research area is of increasing importance for future BigRIPS research activities.

    The job description may be changed during the contract period or upon contract renewal to the extent described above.

  • Assigned department

    Existing departments

    Research Instruments Group, RIKEN Nishina Center for Accelerator-Based Science

Job type

  • Researcher/Postdoc level

Research field

  • Natural Science - Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics

Wages

  • Annual Salary : 3 million yen ~

    Salary will be an annual salary based on experience, ability, and performance, and will consist of a base salary and a variable salary. The variable salary will be determined each fiscal year based on experience, ability, and performance. The monthly base salary is 305,100 JPY as of April 1, 2024. The monthly base salary and variable salary are subject to change due to amendments to RIKEN regulations.
    Discretionary work, commuting and housing allowances will be provided. Social insurance will be applied.

    The approximate amount of annual salary at the time of employment:
    The monthly salary including discretionary work allowance at the time of employment will be 342,915 JPY or more.

Working hours

  • Working hours :09:00-17:20

    Break time :12:00-12:50

    Holidays : Days off include public holidays, New Year's holidays (Dec. 29 - Jan 3), and RIKEN Foundation Day.
    Paid leave includes annual paid leave (up to 20 days depending on the month of employment), special paid leave (childcare, family nursing care, etc.), and work life balance holidays (up to 7 days depending on the month of employment).

    Overtime and other explanations : This position falls under the specialized duties discretionary work system; one working day will be calculated as 7 hours and 30 minutes.

Application requirements

Qualifications

  • Education and Degree Requirements

    Ph.D. / Doctor

    The candidate should possess a doctoral degree in relevant fields, or is a prospective PhD candidate who is scheduled to obtain a doctoral degree before the first day of work.

Employment Type

  • Contract employee

    Postdoctoral Researcher

Contract period

  • Nontenured - Non-tenure track

    1.A one-year fixed-term employment contract, renewable based on evaluation, to a maximum of 5 years from the initial date of hire.

    2.RIKEN may adjust the above maximum period of renewability based on a) the employee’s abilities, work load at the time of contract completion, performance and work attitude and b) the continuation of the employee’s center, laboratory or project and RIKEN’s management situation and budget at the time. In principle, employment contracts will not be renewed for individuals older than 70 years.

    3.There will be an interim review on the third year.

    Probationary period present

    In principle, the first two months of employment is considered a trial period.
    There is no change of working conditions.

Work location

  • 351-0198 Saitama 2-1 Hirosawa, Wako, RIKEN Wako

    RIKEN has implemented a work-from-home system. Employees can work from home in accordance with the prescribed procedures.
    RIKEN may order the employee to change work locations, if necessary.

Compensation

  • Various systems

    Pay increase system : Salary will be an annual salary based on experience, ability, and performance, and will consist of a base salary and a variable salary. The variable salary will be determined each fiscal year based on experience, ability, and performance.

    Transportation expenses : available

    Others : Mandatory membership in the RIKEN Mutual Benefit Society (RIKEN Kyosaikai).
    There are also additional leave systems such as maternity leave, childcare leave, and family nursing care leave.

  • Insurance

    Employees' Health Insurance : available

    Employees' Pension Insurance : available

    Worker's accident insurance : available

    Employment insurance : available

    Others : available

  • Measures for preventing passive smoking at the workplace

    Smoking is entirely prohibited on site.

  • Supplementary explanation of compensation

    RIKEN is actively undertaking initiatives to promote gender equality and diversity, and moving forward with the establishment of a diverse and vibrant research environment. If multiple candidates are found to have the same aptitude following a fair assessment, active efforts will be made to recruit female candidates.

    Also, eligible for an exemption from repayment for category 1 scholarship loans provided by the Japan Student Services Organization before fiscal year 2003, and eligible applying for the MEXT Grants-in-Aid for Scientific Research (Kakenhi).

    RIKEN has a work-from-home system, but this position requires attendance at the work location.

    The Wako Campus has an on-site daycare, RIKEN Kids Wako. For details, please send an email to the HR at kids@riken.jp.

Application Considerations

Number of hired

    1 person(s)

  • Description

    Job title, available positions
    Postdoctoral Researcher, one position

  • Job content supplemental explanation

    Start of Employment
    April 1, 2025 (Negotiable)

Application period

  • 2024/10/07~2025/10/04 Deadline for receipt

    Deadline
    Open until the position is filled

Application method

  • Attached documents

    Application Form : Online Submission
    Please refer to "job Posting URL"
    Achievements and Activities : Online Submission
    Please refer to "job Posting URL"

    Other online application forms
    Please refer to "job Posting URL"

  • Return of application documents

    Others

    Application documents will not be returned.
    Submitted documents including personal information will be used only for the purpose of applicant screening.

JREC-IN Portal web application
Not available
E-mail Application
Not available
Recruiting Institution's Web application system
Accept
Please refer to "job Posting URL"

Selection / Notification of result

  • Selection

    Only candidates who pass the initial document screening will be invited for have an interview.

  • Notification of result

    The results will be notified individually by e-mail,etc.

Contact details

RIKEN

Research Instruments Group, RIKEN Nishina Center for Accelerator-Based Science

Director: Nobuhisa Fukunishi

fukunisi(at)ribf.riken.jp

* Please change (at) to @ and send it.

BigRIPS Team, Research Instruments Group
RIKEN Nishina Center for Accelerator-Based Science
Team Leader: Shin'ichiro Michimasa
Email: mitimasa@ribf.riken.jp

For inquiries, please send an email.

Notes

Handling Personal data
Submitted documents are strictly protected under the RIKEN Privacy Policy and will be used only for the purpose of applicant screening at RIKEN. Personal information will not be disclosed, transferred or loaned to a third party under any circumstances without just cause.

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