To participate in an approved experiment, a guest number
assignment is required. To obtain one, complete the
Guest Information System form. Non-US citizens should expect at least 60
days for processing.
Complete ATF Awareness Training, given by the ATF
Safety Officer. Additional specialized training may be
necessary depending on your experiment (e.g. laser
training). Please contact the ATF ESH
additional information upon arrival.
In order to use your scheduled beam-time, an Experimental Safety Review (ESR) must be completed.
Submit the experimental details and hazards of your experiment to the ATF ESH
Coordinator, who will populate the ESR form.
The ATF ESH Coordinator will submit the finalized ESR form to the C-A Department for formal review and approval.
The PI or local representative may be asked to give a presentation as part of the review process. The ESR process may take two months or more, so
please start as early as possible. Installation at ATF
may not begin until the ESR is approved.
Any newly approved experiment, or set-up
modification for an existing experiment, must pass an
internal ATF readiness review prior to requesting installation/beam
time. The format of this review will depend upon
experiment complexity. Contacted the ATF User Coordinator to
schedule this review.
Prior to installation, the equipment must be
approved for safety and vacuum compatibility by the ATF ESH
Two days per month will be reserved for unscheduled
Rapid Access, granted by special request to the ATF
director. Such a request shall justify the urgency for
ATF access outside of regular scheduling and should come
directly from the principle investigator.
The ATF provides beam time to users during working
hours (9am - 5pm), Monday through Thursday. Friday is a
maintenance day and experimental hall access day, for
service or installation of experiments. If an experiment
requires time beyond these regular operation times, a
duty operator must be identified and a proper shift
change take place and recorded in the logbook.
The accounting of actual time allocated to each
experiment will be based on the records of the ATF
operations logbook. ATF operators will keep a log of all
unscheduled maintenance that may take place during the
scheduled ATF operation and that time will not be
considered as allocated experimental beam time.
Data Management at ATF
Users of the ATF are responsible for meeting their Data Management obligations to their home institutions and granting agencies. Other than the ATF control computer(s), the ATF does not provide specific resources to manage the data that is generated through user experiments. Since the ATF does not have a data archiving service or staff to manage the data, the user must generally copy data to their own storage systems.
The ATF facility provides IT infrastructure such as networks and computers at the ATF control room. General information about
available computing services can be found
The ATF also has IT staff available at the facility and through the the Brookhaven National Laboratory (BNL) Information Technology (IT) organization to provide assistance regarding specific questions or issues related to computing or data management.
Users should consult ATF staff when formulating data management plans and strategies.
If you have questions, please contact the ATF User Coordinator, at
ATF staff provides expert support to user experiments by operating the linac, lasers, and other facility components, assisting with designing and installing the experiments, maintaining a computer control system
with flexible user interface, and providing safety training and experiment reviews.
The responsibility of constructing and operating the specific
experiment rests with the user. The use of electron beam
diagnostics, optical diagnostics, computer systems, CAMAC crates
etc. is provided at no cost.
It is the user's responsibility to install their experimental
equipment in the beam line. Users must get the approval of the
User Coordinator to break into the beam line vacuum system.
Vacuum systems must be bled to pure nitrogen for such an
operation. Prior to installation, the equipment must be approved for
safety and vacuum compatibility by the ATF ESH
Materials and specialty services, such as surveys, electricians, and vacuum, are
available for a charge. To enable payment for such services, users
are required to establish an account with BNL. Contact the
ATF Group Secretary to
establish an account.
For the duration of each experiment run, users must provide a
short, daily progress report including plans for the following day,
by email to the
User Coordinator and
Many users and experiments share the resources of the Accelerator
Test Facility. One
of the most valuable resources is cable.
Given the very large number of cables installed at the ATF, it is
absolutely necessary that the cable policy be observed.
One of ten national laboratories overseen and primarily funded by the Office of Science of the
U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical,
biomedical, and environmental sciences, as well as in energy technologies and national security.
Brookhaven Lab also builds and operates major scientific facilities available to university, industry
and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven
Science Associates, a limited-liability company founded by the Research Foundation for the State
University of New York on behalf of Stony Brook University, the largest academic user of Laboratory
facilities, and Battelle, a nonprofit applied science and technology organization.