December 12, 2023 to January 19, 2024
Institute for Rare Isotope Science
Asia/Seoul timezone



The Institute for Rare Isotope Science (IRIS) invites proposals for beam times extended to domestic users in Korea. The primary beams to be provided in 2024 will be Ne-20 and Ar-40 accelerated by the superconducting linac SCL3 at the energies of ~20 MeV/u or less with a maximum current of ~40 μA. Proton beams of 40 and 70 MeV can be provided by a cyclotron up to 10 kW or less. 

The beam times will be provided for non-proprietary experiments based on the scientific merits through the review of proposals by the PAC members. There will be no beam time charge for non-proprietary experiments as long as the results are expected to be published.

The experimental systems such as KoBRA, MMS, and CLS can be used for experiments. Details of the experimental conditions can be discussed with the contact person of each experimental system or check here.

The proposals need to be submitted by January 19, 2024 to allow for scientific and technical reviews of the proposals prior to the PAC meeting, which will take place in early March, 2024. 

Important dates 

  • 12 December, 2023: Call for proposals 
  • 19 January, 2024: Deadline for submission of proposals 
  • Early March, 2024: First PAC Meeting
  • Middle of March, 2024: Notification of approved experiments 
  • May ~ June, 2024: Ne-20 and Ar-40 beams provided from the SCL3
  • Beam times for proton beams/ISOL can be discussed and fixed individually


The contact spokesperson of the experiment must register on the IBS indico page ( and fill in the form to submit the proposal. The content of the proposal should not exceed ten pages including the cover page, references, tables, and figures. Proposals will be kept confidential but will be made available to PAC members and the IRIS staff for technical and safety reviews. 

The proposals are requested to include:

  1. Scientific motivation
  2. Goals of the proposed experiment
  3. Experimental details
  4. Estimation of beam times requested
  5. Experimental conditions such as beam conditions, targets and detectors
  6. Summary of Experiments


Safety measures 

The Safety Management Office of the IRIS will review all proposals for safety issues. 



Please contact the User Support Office, for any inquiries.




Institute for Rare Isotope Science
1, Gukjegwahak-ro, Yuseong-gu, Daejeon, Republic of Korea (34000)
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