Lawrence Livermore National Laboratory

The Jupiter Laser Facility (JLF) User Program is accepting proposals for experiments in calendar year 2019 (shot dates June through November) through December 2, 2018.

The purpose of the call for proposals is to provide opportunities for forefront experimental science in high-energy-density matter, laser–matter interactions, high-pressure materials, and plasma disciplines. JLF encourages student participation in experiments. Jupiter is a multi-platform, intermediate-scale laser user facility located at Lawrence Livermore National Laboratory (LLNL). Proposals will be accepted for the laser platforms Titan, Janus, and COMET.


JLF is the only intermediate-scale laser user facility in the US. In an effort to enhance access to similar facilities with femtosecond-to-picosecond laser capability, the Department of Energy’s Office of Fusion Energy Sciences recently established LaserNetUS, a consortium of laser facilities at universities and laboratories. These facilities will host user experiements. JLF will participate in LaserNetUS: a fraction of 2019 shot time on the Titan and COMET platforms will be reserved for LaserNetUS. Potential JLF users are encouraged to apply to both JLF and LaserNetUS when the call for proposals for LaserNetUS is issued.

Proposal Considerations

Proposals will be accepted for high energy-density experiments from any institution. One experiment slot is reserved for use by NNSA Centers of Excellence; that slot is awarded by LLNL’s High Energy Density Center. As noted above, a fraction of short-pulse time will be reserved for LaserNetUS. Special consideration will be given to JLF proposals that link to experiments, or proposed experiments, at the x-ray free electron laser facility Linear Coherent Light Source (LCLS) located at the SLAC National Accelerator Laboratory. It should be noted that in 2019 JLF will enter the second year of an extensive refurbishment and expects to offer five experiment slots (for each of the three platforms) instead of the customary eight or nine. (This was also the case in 2018. In 2020, JLF is planned to be down the entire year, except for COMET, which will most likely operate.) Because of the intensive maintenance schedule, no there will be no short-pulse 2ω shots in Titan in 2019.

For Titan and Janus, an experimental run cycle is defined as four weeks, including setup and teardown. Proposals will be accepted for experimental runtimes of less than or more than four weeks; however, the proposal should make the reasons for the request very clear. Requests for time on COMET are not required to fit the four-week cycle. The 2019 schedule will be constructed later.

Review process

All proposals will be peer-reviewed by a JLF Proposal Review Committee consisting of LLNL and non-LLNL scientists using a merit-based system assessing scientific and/or programmatic quality, impact, and feasibility. Although not a requirement, it is desired that the majority of experiments performed at JLF result in peer-reviewed publications. Additional technical assessment of proposals may be solicited from external referees. Principal investigators should ensure that the goal of the experiment is clear in the proposal and that the laser time requested is realistic.


While users will not be charged for laser time, they are required to provide resources for their experimental work force, targets, and diagnostics (except for diagnostics that are permanent to JLF). JLF cannot provide funding to experimenters, but can, under some circumstances, help with targets.

Policies and Procedures

Prior to the preparation of proposals, applicants should review the user policies and procedures detailed on the Policies and Procedures page. Experimental teams are not required to have participation by LLNL scientists. However, because JLF staff can provide only minimal assistance and because the safety environment at LLNL is complex, it is recommended that a Laboratory contact—preferably with experience at the facility—be consulted. Students are welcome, although those new to JLF will require oversight by experienced team members. Applicants needing assistance to engage a suitable LLNL researcher should contact the Director.

Proposal templates are available for download on the CY2019 Proposal Submission Instructions page.

The CY2019 proposal submission deadline is December 2, 2018.