Minutes of the UEC meeting -- November 22, 2003
Present: Bose(GSA), Garcia, Gottschalk, Groer, Hagopian, Clark(GSA), Messier,
Rolli, Sheldon, Tanaka, Trischuk, Tschirhart, White, Zimmerman
Guests: Mike Witherell, Elliott McCrory, Jean Slaughter, Steve Pordes, Judy Jackson
1. Report from BNL Visa Issues meeting - Leslie Groer
The first meeting of the user facility administrators and members of user
executive committees for all DOE scientific user facilities took place at
Brookhaven National Laboratory October 27-28, 2003. The topic of discussion
was foreign visitors and assignments. Representatives from various
Washington, D.C. offices attended and gave presentations: Bill Nay from the
Office of Security in the Office of Science, Edward Ramotowski from the
Department of State, Ramona McGee and Claudia Salem from the Department of
Homeland Security, James Griffin from the Office of Science and Technology
Policy and Irving Lerch from the American Physical Society International
Office. There were representatives from many of the national labs.
Fermilab was represented by members of the Users Executive Committee,
Leslie Groer (Columbia University) and William Trischuk (University of
The main focus of the discussions were the issues in admitting foreign
students and scientists into the US to participate in scientific ventures
at the DOE national laboratories particularly with the new security plans
that all arms of the government are charged with upholding. There is great
concern over the length of time for visa issuances, the security checks
that need to be applied at all levels of foreign visits and what
information the national labs are responsible for collecting and tracking.
These procedures have caused problems for hosting conferences in the US,
allowing foreigners resident in the US to travel abroad, delayed or
prevented foreign scientists and students from coming to the US or getting
on to the national user facility sites. International collaboration is
seriously affected by these issues.
Many of the current procedures that DOE has in place are in response to
directives from the administration. In particular, there is a revised draft
order DOE 142.X which is out for revision and comments that was discussed
extensively at the meeting. The final order is expected early in the new year.
The meeting concluded with a formulation of plans on how to increase the
communication between the user facility administrators and user executive
committees from the various labs and how to help raise these serious issues
within the DOE and in the rest of the US government. Letters to the
department secretaries signed by representatives from all the DOE user
facilities were felt to be very effective in getting the message across and
will be continued in the future. Individual lobbying efforts were also
strongly encouraged. (For a more complete write-up see:
2. Status of the Laboratory - Mike Witherell
Mike reported on the work completed during the shutdown. All work was
done except for installation of large aperture cavities in the booster.
These cavities, designed to reduce losses in the Booster, could not be
installed until additional testing is done. The two cavities will be
installed in a shutdown of 2-3 shifts when they are ready. A decision about
producing more such cavities will be made based on the results seen with
The target date for circulating beam after the shutdown was November
17th. That milestone was met. Work continues on improving luminosity and
lifetimes. Mike commented that all the changes made to the accelerator
complex effectively means that we have several "new machines" which will
require lots of tuning. Mike reported that beam rates in the booster were
not yet up to pre-shutdown levels.
Mike reported that they had approximately 250 people working in the
tunnels during the shutdown, with approximately 80 of these people from
outside beams division, and even included physicists from HEP experiments.
This model worked well and will be repeated as needed. Highlights of work
done during the shutdown are available on the UEC web site:
The biggest success to date resulting from the shutdown is the reduction
in emittance in the recycler (about a factor of 3 lower than before the
shutdown). This reduction was accomplished by improving the vacuum. It is
now thought that vacuum contributions to the emittance are negligible
compared with other effects. This should lead to longer beam lifetimes in
the recycler. Mike commented that there were many other small improvements
seen and that the Tevatron is closer to an "ideal machine" and will be
easier to simulate.
A mini-review of accelerator performance was conducted by DOE on
October 8th. The committee reported that the re-organization was going
well and reported very good progress on Run II work. The next review
will be Feb 24-26. A Director's review will be held December 20-22 and
will include the latest work plan for the recycler. Mike reported that
Dave McGinnis has met with CDF and D0 and will continue to communicate
progress to experimenters on a regular basis.
Mike reported on an internal review of the BTeV experiment. The review
determined that the detector plans are in shape and that the cost estimate
was OK. Design work on the interaction region is moving forward toward a
detailed plan for the IR. It is expected that little money will be
available during FY'04 for BTeV. Construction funding will be required in
FY'05 to keep BTeV on schedule.
A Lehman review of NuMI/MINOS went well with no recommendations on the
technical and civil progress. An ES&H recommendation for increased
supervisor walk-through resulted due to a small number of accidents during
the weeks immediately preceding the review. The committee had high praise
for the integration of NuMI work with Beams Division construction during
the shutdown. NuMI/MINOS target dates were listed as follows:
Dec 28th, 2004 - Near Detector Complete; commissioning startup
Feb 4th, 2005 - Start of Operations
For comparison, the DOE date for start of operations is September, 2005.
Mike reported that the likely funding for Fermilab for FY'04 will be
between 285 and 288 million dollars. This is a disappointing figure and is
tens of millions below desired.
Mike responded to inquires about the facilities report stating that the
results are mixed for HEP. He believes that one purpose in the
high-profile public announcement was to raise awareness for the Office of
Science, hopefully leading to increased funding for Office of Science
projects. The list includes a confusing mix of projects with differing
time scales and readiness. HEP projects listed in the report include SNAP,
BTeV, LC, and a Super Neutrino Beam (a.k.a. Proton Driver). FNAL will push
on R&D for a proton driver and will develop a real cost estimate. For a
proton driver to succeed, it will need a strong physics justification,
which may come following the current round of neutrino experiments. Ray
Orbach has stated that a change in priority is possible in the future.
Mike reported that the LC time scale will be determined internationally and
will be based in part by politics and foreign governments. Mike reiterated
the need for other projects to keep the field active while working
toward a Linear Collider. Overall, he believes that the facilities report
is OK for Fermilab.
3. Monte Carlo Model of the Tevatron - Elliot McCrory
A phenomenological model of Tevatron Collider operations has been
created. Key elements of the operation of the facility have been
randomized in this model to reflect actual Run II performance. In
particular, failures and down times occur randomly, in agreement with the
rates observed in reality. Similarly, performances are randomized, also in
agreement with the range of possibilities in reality. Some of the
performance elements that have been randomized include: PBar transmission
and emittance growth from the Accumulator to Low Beta, Shot Setup time, the
Luminosity Lifetime, etc.
The data used in matching the model to reality is from the Shot Data
Acquisition (SDA) online system and the weekly operations data sheet. The
time between Tevatron failures is well fit by a function with 1/(av. time)
of 0.975/hour, giving a probability of having stores of 1 hour: 0.975 and
10 hours (0.975)^10 = 0.776. Failures are independent of time. They are a
random process! The luminosity lifetime is modeled with an exponential with
a decay function which depends on time and the initial luminosity, and
gives a good fit to real data.
A primary motivation for this model is to guide the Run Coordinator on
how to manage the operation of the Collider. In particular, this model
answers the question of how a particular criterion for ending stores
affects the integrated luminosity. The best simple criteria found so far
to end the store when the ratio of the potential (likely initial)
luminosity, which depends on the stack size, divided by the actual
luminosity is greater than a constant (now at 5.0). Future work includes
improved understanding of the 2003 Tevatron performance, incorporating the
"Recycler Tax", and putting the new End-Store Criteria variables into
(Slides for this talk can be found in the Beams Division Document Data Base
(Public) at http://beamdocs.fnal.gov/ under: Beams-doc-913-v1. Other
related talks by Elliott McCrory on the Tevatron Luminosity MC model can
also be found there.)
4. How Experimenters Can Help Improve Accelerator Performance - Jean Slaughter
Jean Slaughter gave a recruiting talk on how experimenters can help with
improving luminosity and the number of protons. Jean started by
summarizing a number of examples in which university and Fermilab
experimenters have already made substantial contributions to improving the
performance of the complex. She stressed that experimenters have a number
of very valuable skills and bring a fresh perspective to problems. They
are not tied down by day to day operations, so they can tackle projects
that otherwise might not get done in a timely manner. She then gave
examples of projects that people could help with, emphasizing that there
will be a learning curve, so initiative and an appropriate match between
the experimenter's interests and skills to projects are very important.
Jean emphasized that persistence helps, since many Beams Division people
are buried in day to day operations, and expertise is often concentrated
in a few people. Summarizing, Jean reminded people that D0 and CDF both
allow work in the Beams Division to count towards service work, that there
is a variety of interesting projects, and to contact her or Stephen Pordes
for ideas on specific projects.
(Slides for this talk can be found in the Beams Division Document Data Base
(Public) at http://beamdocs.fnal.gov/ under: Beams-doc-927-v1.
5. Fermilab Public Relations - Judy Jackson
Judy reported on Fermilab publications. Fermi News has a circulation of
more than 15,000 and is read all over the world. Among the target audience
are policy makers in Washington, DC. As such, the periodical is written
with this audience in mind. She commented that the classified ads (and
even the Chez Leon menu) were popular in DC and helped put a human face on
activities at Fermilab for DC insiders. Articles are short, focus on
people, and include information that can be used to help promote FNAL. Due
to the roll-out last summer of the daily online newsletter, Fermilab Today,
Fermi News has become a monthly publication.
Fermilab Today is a direct result of internal focus groups that
indicated a need for improved internal communication. All employees are
automatically subscribed, while user subscription is voluntary. LBL has a
similar service and provided a model and contributed valuable experience.
Judy reported that her office possesses excellent software that allows her
staff to assemble each issue in just a few man hours. Judy and her office
are pleased with the new online publication and their ability to rapidly
communicate with the Fermilab community.
Judy also discussed the new interactions.org web site. This site is a
collaborative effort between most of the world's HEP laboratories and is
suppose to be a central clearing house for information, pictures, figures,
talks, and news. Many in DC have already subscribed to receive
interactions.org press releases. This is yet another venue for
communication and information dissemination to decision and policy makers.
The web site can also be used by physicists to obtain images of
laboratories, people, event displays, etc. Judy asked that anyone with a
pretty picture or event display make that image available on the
interactions.org web site for use within the community.
A new US HEP magazine is under development. It has yet to be named. It
will be a joint effort between SLAC and FNAL. The editor will be David
Harris (currently at APS). David will be employed by SLAC but will travel
between the labs. Fermilab will provide graphic design and format
support. The publication will be monthly with the first issue slated for
April 2004. In Judy's words, "This is not your father's physics magazine."
Judy also reported on increased collaboration between the FNAL and SLAC
offices for public affairs. Weekly video conferences are held with the
goal of promoting HEP in general (as opposed to individual laboratories).
She reported that for the first time in a long time, the public as well as
politicians are excited about physics due to the discovery of dark
energy and dark matter. Whereas the Higgs Boson and mass never interested
policy makers, dark energy, dark matter, and neutrinos do interest them.
Judy told us that the HEP community needs to relate what we do with these
issues. She also commented that the HEP community needs to show that HEP
is relevant and can contribute to solving mysteries of the universe. For
example, she commented that the Quarks to the Cosmos report is commonly
held-up as exciting science that needs to be pursued.
Judy told us about the formation of the HEPAP Cosmos sub-Committee which
is charged with determining HEPs role in deciphering the mysteries
associated with Dark Energy and Dark Matter. The committee has met with
DOE, NSF, OMB, and OSTP. The committee will develop the intellectual
framework for this research mapped onto existing and future HEP facilities.
The membership of this committee can be found at:
| The next UEC meeting is scheduled for December 13 |