Prior to Arrival at BNL
- 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.
- After you are issued a BNL guest number, complete as
much of the
online ATF training as possible.
- Consult the Experimental
Work Guide (PDF) for important information on planning
experimental work and installations at ATF.
Upon Arriving at BNL
- Report to the RHIC
& AGS Users' Center to receive BNL training,
dosimetry badge and ID card.
- 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.
- See the Visitor Information
Guide for a variety of information to help you make the most of your
experience at Brookhaven.
Starting an Approved Experiment
- 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. Contact 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
> Read the Full Requirements
Beam Time Allocation
- Beam time is allocated according to the requirements
of the experiment and the availability of beam time. To
make a request, complete the
request form and submit via email to the ATF
User Coordinator. See beam time schedule.
- 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 (9.30am - 6pm, with a 30 min lunch break) Tuesday through
Friday and for 4 hours on Monday afternoon (2 pm - 6 pm). Monday morning is
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.
NB: The lead on-site experimenter is expected to send a brief summary of work and next-day plans, by email, to ATF staff at the end of each shift. Upon completion of the run, the PI or lead on-site experimenter is also required to fill out a run completion report that can be found here.