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Become a User

To conduct your research at MLF, please submit the research proposal during the Call for proposal round. When your proposal is approved you'll receive Approval Notice. Then you will need to complete the following administration procedures.

Research Proposal Submission

Proposal Review

Proposal Approval and Administration Procedures


Post Experiment

1. Proposal Application and Review

The Principal Investigator (PI) can submit proposals using the web-based Proposal Submission System. User registration must be completed prior to the submission.

Submitted proposals are reviewed and evaluated on scientific and industrial value by the Neutron Science/Muon Science Proposal Review Committee.
Only the proposals that are recognized to be of high value get approval.


Contact (J-PARC Users Office)
General use (non-proprietary use)

Proposal Submission

We have two calls for proposal per year, generally in May and November.

Proposal submissions via the Proposal Submission System

Contact (J-PARC Users Office)
Proposal Application

Proposal Review

  • The review results will be emailed to the applicants.

2. Post Approval

After receiving an approval notice, please continue to follow the necessary procedures through the User Support System. User registration must be completed prior to submissions. The User Support System procedures need to be followed by the PI and all experiment team members.

  • Procedures to conduct your research at MLF
  • Procedures to use the User Experiment Preparation Lab and other facilities

After Receiving Approval Notice

Submit the MLF Safety Checklist to the Users Office within one week after receiving the approval notice.

Submission of Safety check list for General use is not required on 2016A and after.

Procedures Prior to Visiting MLF

Submit the required documents two weeks prior to your visit.

Refer to Before You Arrive for details.

  • Beamtime scheduling with your instrument scientist
  • Procedures for experimental equipment safety

Procedures Upon Arrival

  • Check-in procedures and safety training at the Users Office
Office hours 9:00am - 5:00pm weekdays
Contact to TEL: 029-284-3398
Check-in procedure for after office hours and on weekends and holidays

Please contact the Users Office in advance.


3. Procedures Following Experiment

Return your user ID card, OSL glass badge and any borrowed items to the Users Office before you leave J-PARC. Any equipment that you brought on the experiment should be removed from MLF within six months of your experiment's completion.

Departure Procedures

Submit Experimental Report

Via the J-PARC Result Management System within 60 days after the end of the proposal term of your experiment.

Publications Entry

  • Publish your research results to a journal, thesis, or conference presentation
  • Stipulate the MLF instruments you performed the experiments with in a credit line in your publication
  • Register publications to the J-PARC Result Management System