The ATLAS User Program

Happy Users
Experimenters in front of Gammasphere at the FMA.

As the Nation's leading low-energy, stable beam accelerator facility, ATLAS has a diverse and vigorous user program. In a typical year, between 200 and 300 users will come to ATLAS to perform experiments. Researchers representing institutions within the U.S. and overseas have used the ATLAS facility.

Users performing basic research experiments at ATLAS are not charged for beam time. The ATLAS facility normally provides isotopic beams at no expense to the User. There is also a state-of-the-art target making facility in the Physics Division. Furthermore, technical assistance with detection equipment and beam line setup may be obtained from the Physics Support Group. Finally, Users are welcome to collaborate with the in-house staff on experiments of mutual interest.

ATLAS User Forms

1. ATLAS facility user data

Before an experiment beam time starts, we ask that the principal investigator makes sure all her/his collaborators in the corresponding proposal fill the ATLAS facility user data form.

  • Prefilled forms can be found here (if you have filled out the form previously)
  • New form? click here (if you have never filled out the form)

Failure to fill the form may cause delays in the ATLAS beam production start time.

2. Critical beam change request

Please fill the form below to request a critical change in the beam conditions with respect to the approved ones:

Critical beam change request

A critical beam change is a change in the beam conditions that requires review by the ATLAS safety committees. A critical beam changes include: increment in maximum beam energy or intensity, use of different end station, use of different beam species, beam time extension/reduction.

User Entries (ATLAS facility user data)

The table below shows the users who have entered their information in the ATLAS facility user data form for the present fiscal year in descending experiment number.