This is a call for
proposals for experiments at ATLAS, for the scheduling period beginning in
August 2008. The ATLAS Program Advisory Committee
(PAC) meeting will be held June 27-28, 2008.
Please remember that, at
the request of the PAC, some specific requirements for proposals have been
implemented (see below). Please
take them into account while preparing your
submissions.
Some of the experiments
that received "Priority II" approval could not be scheduled in the period since
the last PAC meeting because of heavy pressure for beam time. This approval does not carry over
to the next cycle and such proposals must be resubmitted for consideration by
the PAC if beam time is still desired.
During the present PAC
period, Gammasphere was located in front of the FMA as there was no request for
stand-alone operation on the other beam line. However, depending on Users
demand, the array can be moved to its stand-alone location either during the
upcoming PAC period or during the next one. Hence, we welcome proposals for
Gammasphere at both locations. Note that the presence of Gammasphere at the FMA
continues to constrain the intensity of beams allowed for some FMA
experiments.
Format of Proposals:
We encourage the
electronic submission of proposals, although hardcopy submissions will also be
accepted. The instructions for
filling out the web-based forms can be found on our web site at: http://www.phy.anl.gov/atlas/pac/proposals.html.
To request beam time,
please complete either the web-based form(s) or download and complete the
requisite form(s), and write a description of the proposed experiment
summarizing the scientific justification, motivation, feasibility, and relevant
technical and safety information.
The proposals can be sent electronically as an e-mail attachment to zhu@anl.gov in either (I) Portable Document Format
(.pdf), (II) Postscript format (.ps), or (III) in Microsoft Word. The alternative is to print 15
hardcopies and mail them to Barbara Weller.
Contents of the Forms. There are
two forms, the first of which is the proposal fact sheet on the web at http://www.phy.anl.gov/atlas/pac/prop-factsheet.html, which must accompany all proposals. The second form
is specific to Gammasphere experiments and can be found at http://www.phy.anl.gov/atlas/pac/GS-checklist.html. On the proposal fact sheet, please list the maximum beam energy and current you
require. This essential information is needed for
radiation safety calculations.
Also, beam-tuning will be based on these upper limits. An increase in energy above the stated
maximum or a change in beam species requires prior notice. Finally, by signing the hardcopy form or
entering your name in the verification box on the web-based form, you are
certifying that all collaborators listed on your proposal are fully aware of the
proposal and have agreed to participate in the
experiment.
Contents of Proposals.
The proposals should be
self-contained; including a list of
participants, an abstract, the
basic physics goals of the
experiment, a discussion of what exactly
will be done in the measurement and any pertinent references. Sufficient technical details of the
proposed measurement and count-rate estimates should be included, for the PAC to
be able to judge feasibility and the scope of the measurement, and impact on
available ATLAS resources in manpower and hardware. The PAC requests that the proposals
be kept to a reasonable length, 5 pages maximum plus figures and
appendices. It is to be presented
in single-column format (i.e., a full Phys Rev C length article in two-column
format is not acceptable), with fonts no smaller than those in this letter (12
pt).
In your proposal please summarize the results
of previous experiments by the group and indicate the status of the data analysis
and publication. This information
will be taken into account during the PAC assessments.
Background
Information
Beam
Species. The beams that are
routinely available from ATLAS are listed on the ATLAS Web page at http://www.phy.anl.gov/atlas/facility/stable_beams.html.
They range from 7Li to 238U. Other beams may be possible, after some
development, and their feasibility should be discussed with the ATLAS Operations
Group before a proposal is submitted.
The contact person is Richard Pardo (pardo@phy.anl.gov).
Beam
Isotopes. The beam currents for
elements listed in the enclosed table of available beams were obtained using
natural material. Other isotopes
are available with currents generally proportional to their abundance. Any special preparation that may be
needed should be discussed with the Operations Group prior to submission of the
proposal. The practicality of a
beam may be a consideration in the approval of a proposal.
Experimental
Equipment. General information on
experimental equipment can be found in the ATLAS Users Handbook, which can be
accessed from the User Information page (http://www.phy.anl.gov/atlas/handbook.html). Other equipment is also available for
potential users, and there are general-purpose beam lines for additional
scattering chambers or other non-standard equipment. For the current status of a specific
experimental station, please contact any one of the Laboratory staff members or
the user liaison physicist.
Gammasphere
and FMA. Gammasphere and the FMA are complex instruments that may be
used combined or separately in experiments. There are a number of options for their
utilization. To aid the user in
preparing proposals, see http://www.phy.anl.gov/atlas/pac/GS-checklist.html
for some of these options. Details
concerning Gammasphere may be found at http://www.phy.anl.gov/gammasphere/index.html or by contacting M. Carpenter (carpenter@phy.anl.gov); FMA details are
at http://www.phy.anl.gov/fma/index.html or by contacting D. Seweryniak (seweryniak@anl.gov).
Access to Experiments
with Beam. The ARIS system is
designed so that for low-level radiation, where appropriate conditions are
satisfied, access to the experiment is possible during the course of a
measurement. More information can
be found in the ATLAS Users Handbook.
Program Advisory
Committee
PAC
membership. The present PAC membership is: Birger Back (Argonne National
Laboratory), Bogdan Fornal (Institute of Nuclear Physics, Polish Academy of
Sciences, Cracow), Sean Freeman (University of Manchester), John Hardy (Texas
A&M University), David Radford (Chair, Oak Ridge National Laboratory),
Hendrik Schatz (Michigan State University), and Krzysztof Starosta (Michigan
State University) as Chair of the ATLAS Users Group.
Please feel free to
contact the ATLAS user liaison physicist (zhu@anl.gov) with any questions. Web-based submissions must be received
before midnight on May 19, 2008, or
send 15 copies of your proposal and
necessary enclosed forms such that they arrive by May 19, 2008 to:
Mrs. Barbara
Weller
PHY203
Argonne National Laboratory
9700 S. Cass Ave.
Argonne,
IL 60439-4843
Confirmation of the
reception of your proposal should reach you via email by May 23,
2008.
We are looking forward
to exciting proposals for research at ATLAS.
Sincerely,
Robert V. F. Janssens
Physics Division Director
RVFJ:bw