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Call for Proposals

» General Use Proposals (Short term and One-year)
» New User Promotion
» Urgent Access
» General Use Proposals (Long-term)

General Use Proposals (Short term and One-year)

The Call for General Use Proposals (Short-term and One-year) for 2021B at MLF has been CLOSED.

J-PARC and CROSS call for General Use Proposals (Short-term and One-year) twice a year with submission deadlines falling in June and November. Please check back regularly on the latest information about calls for proposals and submission deadlines.


J-PARC Center Users’ Office
For Experiments Non-Proprietary Use :
For Experiments Proprietary Use :
For General Questions :

Former General Use Program

2020B+2021A, 2020A

New User Promotion

CROSS is now accepting proposals and expressions of interest for access to the neutron Public Beamlines at J-PARC MLF under the 2020A New User Promotion. New User Promotion is aimed at assisting novice users of neutron-based techniques gain experience and expertise that will allow them to become independent General Use applicants in the future.

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Urgent Access

The Directors of CROSS and MLF may at any time grant beamtime from their discretionary allocation in order to facilitate research that they believe is worthy of expedited access to MLF. To qualify for Urgent Access beamtime, the proposed experiment must be of major scientific, economic or social significance.

Applications to the Urgent Access mechanism can be made at ANY TIME.

If you wish to apply for Urgent Access beamtime, please contact the director of MLF Division of the J-PARC Center.


Toshiya Otomo
Director of Materials and Life Science Division J-PARC Center Tokai-mura,
Naka-gun, Ibaraki-ken, 319-1195, Japan
Tel.:+81-29-284-4333/Fax: +81-29-284-4899
E-mail: toshiya.otomo[at]
Please replace "[at]" with "@"

General Use Proposals (Long term)

The Call for General Use Proposals (Long term) at MLF is now CLOSED.

Announcement of the next call for proposals (2022L) will be posted on the website after the period of the proposal round is determined.

Former General Use Proposals (Long term)