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SwissFEL

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Evaluation

Proposal review committee

  • The proposal review committee (PRC) is an international committee advising the Photon Science Division Head on the distribution of user beamtime.
  • PRC members are appointed by the Photon Science Division Head for a period of 3 years. An additional appointment of 3 years is possible. PSI pays for travel and accommodation expenses of the committee members.
  • All proposals are rated by the PRC. The rating is done in accordance with the IUPAP recommendations for large scale facilities, section 3.2) and is based on
    1. Scientific merit (relevance, impact, innovation, potential of the scientific- and/or technological case and/or relevance and applied importance of instrumental development)
    2. Technical feasibility
    3. Previous record of the proposers
    4. Availability of the resources required
  • Every proposal is rated by a minimum of 2 PRC members.
NEW: THE GRADING SCALE is 1 to 5.5.
  1. 5-5.5 Outstanding Proposal
  2. 4 - 4.9 Excellent Proposal
  3. 3 - 3.9 Good Proposal
  4. 2 - 2,9 Sound Proposal
  5. 1 Rejected Proposal
  • The PRC forms subcommittees to rate proposals belonging to individual beamlines and to similar scientific topics.
  • If a proposer asks for an unreasonable amount of beamtime, the PRC suggests how much beamtime is realistically needed.
  • If the feasibility of a proposal is uncertain, the PRC may change the proposal type to Test and suggest resubmission after successful completion of the test experiment.
  • In cases where the PRC has good reasons to expect synergies, it may suggest merging two proposals. The beamline manager asks the proposers if they agree with such a merger.
  • PRC-members absent themselves from the discussion of proposals in which they are proposers or co-proposers.

Beamtime distribution

  • Following the ranking of the PRC and its recommendations, the BL managers draw up the list of experiments that are to receive beamtime during the next allocation period. Small adjustments of the allocated number of shifts may be necessary for logistic reasons.
  • The PSD laboratory heads check for consistency in proposal acceptance and number of shifts across beamlines.
  • The Photon Science Division Head takes the final decision on proposal acceptance and shift allocation and distributes the reserved director’s time.
  • Proposers are informed about acceptance of their proposal, the rating and the type of proposal (long term, normal, pilot, and test).
  • The BL managers ask proposers for their scheduling preference and draw up the beamtime schedule, taking into account:
    1. facility operation conditions
    2. scheduling preferences by the users
  • If an experiment cannot be performed due to problems caused by the beam-line or the facility, it can be rescheduled using the reserve time (typically about 4 days at the end of the running period). The rescheduling decision is taken by the BL manager.

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Contact

PSI User Office

Paul Scherrer Institut
Room WLGA/018
CH-5232 Villigen PSI
Switzerland

Phone +41 56 310 46 66
Fax +41 56 310 32 94
Email: useroffice@psi.ch

Office hours: Monday-Friday 8:00 to 17:00


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Paul Scherrer Institut

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Téléphone: +41 56 310 21 11
Téléfax: +41 56 310 21 99

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