Materials Research Program Advisory Committee (Mat-PAC)

GSI/FAIR have established a Materials Research Program Advisory Committee (Mat-PAC) that evaluates experiment proposals in the area of materials research. The Mat-PAC members give advice to the GSI/FAIR directorate on selecting experiment proposals that are submitted by individual users or user groups, currently for the FAIR-Phase 0 program. Following periodic calls for proposals, the Mat-PAC meets to evaluate experiment proposals on the basis of scientific merit and technical feasibility and with regard to the GSI/FAIR strategy, and makes recommendations on the amount of beam time to be allotted.

'Call for Proposals' now open

We hereby invite you to submit experiment proposals in the framework of FAIR Phase-0, which offers beamtime for experiments at GSI until the start of FAIR. This includes proposals on technical improvements. Scientific experiment proposals will be evaluated by the Program Advisory Committees. The FAIR Phase-0 program will exploit the facilities of GSI, which have been upgraded to meet the requirements as FAIR injectors, plus the FAIR CRYRING storage ring. Moreover, FAIR Phase-0 will be an opportunity to use detectors developed for FAIR.

The present Call for Proposals for the Mat-PAC is foreseen to offer a total user beamtime (counted as main shifts) in 2023 and 2024 of roughly

  • 120 shifts at UNILAC,
  • 25 shifts at SIS18,
  • 12 shifts at ESR, HITRAP and CRYRING,
  • 11 shifts at CRYRING standalone.

Your proposals must be submitted by the 30th of June 2022.

A list of typically available beam parameters can be found here.

We regret to inform you that currently, participants with Russian or Belarussian affiliation cannot be participants in experiment proposals at GSI/FAIR.

Please note that GSI/FAIR now employs a website-based submission system called GATE. Each participant of a proposal is required to register1 in GATE before submission can take place. Please follow the instructions on the GATE platform and in the short GATE manual carefully. In particular, we urgently ask you to consult the Link Scientist of the experimental site in question as soon as possible to discuss technical details and feasibility of the experiment, and for guidance during the application. The Link Scientist is to be chosen within the GATE forms and can be contacted e.g. via GATE upon a first draft completion of form in the step ”Submit”. A pdf file describing the proposed experiment is to be uploaded; details on its structure and content are given here.

The filling in of the GATE online forms and attachment of a proposal PDF file can be paused and continued at any point before submission, it is hence recommended to begin the process as early as possible. The GATE website is largely self-explanatory, should you yet encounter problems in GATE, please contact


GATE website:


Your submitted proposals will be evaluated by the Mat-PAC. Following the recommendation by the review panel, the Scientific Management Director will grant beamtime2. The applicants will be informed on results in due time. Beamtime granted in this round will expire after 2024.

We are looking forward to an exciting science program in FAIR Phase-0!


Contact persons for the 'Call' are:

Mat-PAC Scientific Secretary: Ina Schubert

For issues with GATE: GATE-Help


(1) All participants of a proposal need to register themselves and allow being searchable for other users. General Data Protection Regulation GDPR apply according to Art. 13 and 14 DSGVO: Staff Management Board GDPR english

(2) Beamtime is granted at no charge within the framework of the Helmholtz Association: "Rahmenrichtlinie über die Nutzung von Forschungsanlagen der Helmholtz-Zentren durch Dritte” (1.3.2000), §II. 1.2. GSI/FAIR need to report to funding agencies on user operation and user communities in form of statistical data.

Please note that GSI does not cover the consumables and investments necessary for running an experiment.

Members of the Mat-PAC

  • William J. Weber (Chair)
    University of Tennessee, USA
  • Thomas Cornelius
    CNRS, IM2NP (UMR 7334), Aix-Marseille Université, Marseille, France
  • Yong Dai
    PSI, Villigen, Switzerland
  • Zuzanna Siwy
    University of California, Irvine, USA
  • N.N.

Mat-PAC Scientific Secretary

Dr. Ina Schubert

GSI, Darmstadt

Phone: +49-6159-71 2033

contact by E-Mail to: I.Schubert(at)


Next Mat-PAC Meeting

Date of the next Mat-PAC05 Meeting: September 20-21, 2022

Recent Mat-PAC Meetings

Mat-PAC04, June 16/17, 2020: Documents of the meeting (for Mat-PAC members only)

Mat-PAC03, September 19/20, 2017: Documents of the meeting (for Mat-PAC members only)

Mat-PAC02, November 15/16, 2010: Agenda Mat-PAC02

Mat-PAC01, March 12/13, 2009

User Services

Information for Users on services and beam time can be found on the Users' Webpages.  

Central point of contact for associated guests and users on campus is the Welcome Office.


General Data Protection Regulation GDPR (according to Art. 13 and 14 DSGVO): Staff Management Board GDPR english