40Th Anniversary Celebration a Winner Thanks to Staff Efforts

- = 0 A

t-d :;W5;S1Li to! | 40th Anniversary Celebration a SLAC's Electron Winner Thanks to Staff Efforts Beam Gets By Tom Meady:= SLAC staff contributed in many Astrophysical ways, including program planning SLAC markecXY40th anniversary By Miriam Boon last week witt^4blelebration that and implementation, AV, graphics, brought toge re than 1,300 disabled transport system, parties and In 1916, Victor Hess risked his life to people for a of well-orchestrated catering, to mention just a few. There observe cosmic radiation by riding events highliog the Lab's past were over 80 SLAC staff volunteers a balloon up to 17,500 feet without achieve lralding exciting helping on the day of the celebration. oxygen. Since then, scientists have been puzzled as to where high-energy future poss e In his closing speech, Dorfan was cosmic rays come from and how they quick to recognize the many people As SLAC DJit#onnathan Dorfan got accelerated to nearly the speed of that contributed to the event. "This noted in hide speech, "This light. day is dedictf6&tothe SLAC staff as celebration could not have happened a celebration of tiaccomplishments were it not for the super-human effort The mystery recently deepened and contributifis to science made by of a highly motivated group of our when scientists noticed a discrepancy them." staff who organized this extravaganza between the results of leading as volunteers." Pief Panofsky addresses the audience. experiments that use different The count ofthose contributions techniques to study ultra high-energy For the afternoon event, SLAC staff, a standing ovation as he walked would now have to include the event cosmic rays (UHECRs). itself. The affair, which involved government representatives, guests onstage to address the audience. and scientists streamed One of these experimental groups, the months of tireless planning and to a giant Before leading the audience to a white tent erected University of Utah's High Resolution preparations by over 100 people, went on the Green. reception on the "Green," Dorfan Fly's Eye (HiRes), has been working off smoothly and without a major There, in addition to speeches by spoke about SLAC's bright future, hard to determine the source of this hitch. Dorfan, the afternoon included touching on work done across the discrepancy. Their investigations have speeches by Stanford President John Lab. "The achievements of the first 40 "I am so grateful to the SLAC staff most recently led them to collaborate Hennessy, Peter Rosen from the years will be difficult to top," he said, for their support of this event," said with the High Energy Laboratory DOE Office of Science, University of "but the ingredients are already in 40th CommitteeMember Pat Kreitz Astrophysics (HELA) program here Toronto President Robert Birgeneau, place to make the next 40 years just as (TIS). IIWhenever-at member of the at SLAC, a new initiative led by Davidson Institute of Science memorable." Committeewent-to someone for help Pisin Chen (ARD-A) and aimed at Education Chair Haim Harari, and or put out a -ad for vohmteers, people Later in the evening Jack Marburger, simulating astrophysical processes former SLAC Directors Burton Richter pitched right-in<. ltasimspiring to Chief Science Advisor to President in the laboratory so that they can be and Pief Panofsky. In the day's most witness howrmuch everyone cared to Bush and Director, Office of Science studied at closer quarters. poignant help makethis a special celebration." moment, Panofsky received and Technology Policy, delivered the Together, the two groups hope to keynote address at a dinner held at not only shed some light on this Stanford's Alumni Center. new inconsistency, but also to gain a In his remarks, Marburger quoted deeper understanding of how high- from poet T.S. Eliot's Four Quartets to energy cosmic ray air showers behave. illustrate his vision for the future of Unraveling the High-Energy Cosmic fundamental science: Ray Mystery We shall not cease from exploration And the end of all our exploring We know that cosmic rays have a Will be to arrive where we started wide range of energies, beginning at And know the placefor thefirst time. the low end of high-energy physics. UHECRs stand apart from other high- "The truths that poetry evokes are energy cosmic rays because they can within ourselves," Marburger said. in principle be tracked to their origin "Within the experiences that lie in our by observing their trajectories. This memories and are drawn out by their is possible because their momentum resonances with the propositions of is so great that, even if they carry the rhythmic lines. The truth lies in the charges, they are not deflected experiences, the poetry comes later. significantly by the magnetic fields In the final analysis the exploration of they encounter as they travel through the universe is necessary to humanity space. to celebrate SLAC's 40th Anniversaru. because it provides the basis for its A crowdLI catLI (Y$44-Lgathered IL L4 in&1 a"I huge6, LI tentI' LI(2IA & onLI II, the&I&L Green-J ILI LIII LLI LILI 9 tj I vLII IILs % xwt I &L &II z I Unfortunately, they are also very i rare. At an energy of one hundred- were held during the last two billion-billion electron volts-two 29th Annual days of the meeting. billion times greater than the highest SSRL Users' SSRL Director Keith energy particle SLAC's accelerator Hodgson noted, "This was can achieve, and the highest energy Meeting a very successful meeting cosmic ray observed to date-only with over 200 participants one such UHECR can hit a square Features Talks, attending 24 talks, 46 poster kilometer on Earth per century, and Workshops presentations, 26 vendor exhibits, four workshops, two (See COSMIC RAYS, page 2) By Tom Mead evening receptions and one The 29th Annual Stanford Oktoberfest themed dinner Synchrotron Radiation Laboratory during the three-day event." (SSRL) Users' Meeting took place in A poster competition was the Panofsky auditorium and on the also held in which graduate Green October 7-9. students competed for poster The Users' Meeting provides a prizes in several scientific Biomineralization Induced by dynamic forum for the presentation categories, including Materials Dissimilatory Iron Reduction) Science, Environmental Science and and discussion of research activities * Jeffrey Catalano, Stanford Biological Sciences. Four prizes were from SSRL and the synchrotron University (X-ray Spectroscopic awarded to the following graduate community. New data and Investigation of the Distribution students: developments are shared through and Speciation of Uranium in invited talks and poster presentations * Trevor M. Willey, LLNL, UC Davis Contaminated Sediments From the highlighting research activities (Characterization of Ultrathin Organic DOE's Hanford Site) conducted at SSRL over the past year. Films Using NEXAFS) In conjunction with this meeting, four * Weiwei Gu, University of California longer, more intensive workshops * Colleen M. Hansel, Stanford (XAS Study of Ni Enzyme-Story of University (Mechanisms of Fe CODH and ACS)* Cosm i^c Rays AS otn teciiiques nave DecUtme *D|P^ B itf y more aadvanced, v^anced, tethe two experiexperiments f Xr Xtf o* | JI ^C V r I* e r (continued from page 1) have progressively increased their i,,r,.io-c If ^rIc cwh rn rpcentlv that there is no way of predicting where the experiments' resolutions were tby Jonathan Dorfan these rays will hit. High-energy good enough for them to see the cosmic rays do, however, cause discrepancy between their results. The celebration of SLACs 40th Anniversary was something called an 'air shower.' A a wonderful event It gave us theopportunity to single high-energy cosmic ray can Joining Forces, Taking action showcase SLAC's remarkable achievements but result in an air shower that is visible This unsettling discovery spurred also lemonstrated our ability to organize a major to detectors using air fluorescence Chen and Pierre Sokolsky, of the event efficiently and imaginatively Everyone was technique from tens of kilometers University of Utah and HiRes, to impressed by SLAC's spirit and vitality. Senator away. Boxer's field representative said that ours was one join forces. Together, with a team of thebest-organized events s had attended in a Upon entering the atmosphere, an of scientists, they are attempting long time and added, and I do this for a living!" UHECR would initially decay into to confirm or correct the existing hadrons, which shortly thereafter calibrations of air fluorescence I was delighted that such a large fraction of our cascade into leptons, such as electrons. technique by using SLAC's electron staff attended the event. As I made dear in my The air shower's effect is similar to beam to trigger and simulate air sec t successhe of this pr all an avalanche's progress--the more showers. Additionally, they hope to particles there are in the shower, the gain a better understanding of high- more interactions occur and the more energy cosmic ray showers by cross showering particles result. By the checking the results of laboratory time the shower reaches the ground measurements against pre-existing the final particles are much lower in computer simulations. and have been spread wide. energy This improved calibration of the air Detecting the air showers fluorescence will help determine if it is inaccurate calibrations that have led to Our atmosphere contains mostly the mysterious discrepancy between nitrogen molecules. The high-energy HiRes and AGASA's results. leptons in an air shower interact with the electrons that are attached to those Study of the simulations used to nitrogen molecules, imparting energy improve the calibration will also to them. This causes the nitrogen help scientists to better understand electrons to temporarily orbit further air showers. Chen commented, "It from the molecule's nucleus. is a happy coincidence that the total energy of a typical SLAC beam is As the electrons eventually return to roughly equivalent to that of the their normal orbits, they emit photons highest energy cosmic ray observed to in the ultraviolet range. This is what date." scientists called "air fluorescence," the same physical mechanism that makes The information gained will fluorescent light bulbs work (but at benefit not only the existing HiRes different frequencies). Observing this experiment, but also the next fluorescence is useful in determining generation Pierre Auger Observatory, the initial energy of the UHECR, and currently under construction in is used by HiRes to detect high-energy Argentina, as well as the next-next cosmic rays. generation space based observatories such as the joint U.S.-European EUSO Unlike HiRes, another leading and the U.S.-lead OWL projects. Work Safe, Work Smart Statistics experiment called the Akeno Giant Air Shower Array (AGASA) counts the Said Sokolsky, "We're going to be able Injuries involving days away from work were reported on 9/13/02 and 9/16/02. number of shower particles that reach to make a very good measurement at Because the previous injury involving days away from work occurred on the earth. It compensates for the rarity SLAC. This is exciting. SLAC is just 8/20/02, SLAC's record number of calendar days between claims remains at of UHECRs by covering a large area perfect for this." * -Sharon Haynes 184 days. with detectors of a different kind. l I This Month In SLAC History: October 2002 By Jean Deken, SLAC Archivist Republic of China, visits SLAC. 38 years ago, October 2, 1964: 19 years ago, October 31, 1983: SLAC Paleoparadoxia discovered during Linear Collider (SLC) groundbreaking excavation of End Station B. ceremony. 37 years ago, October 1 - 2, 1965: First 14 years ago, October 25, 1988: "Users Conference" held at SLAC, Michael Riordan of SLAC awarded with 150 people in attendance. the 1988 American Institute of Physics Science Writing Award for The 36 years ago, October 17, 1966: Hunting of the Quark (1987: Simon & Interlaced beams of different energies Schuster). are delivered to the beam switchyard, and experiments with the beam begin. 12 years ago, October 4, 1990: SPEAR becomes a dedicated synchrotron 34 years ago, October, 1968: Feynman radiation facility with an independent talk-at gives his first public injector. Stanford-on his parton theory. October 17, 1990: Nobel Prize shared Nobelists Burt Richter, Martin Perl, and Dick Taylor on October 11, 1995 at the 1976: 26 years ago, October 18, by Richard Taylor (SLAC), Jerome SLAC celebration in honor of Martin Perl's Nobel Prize in Physics. Burton Richter (SLAC) and Samuel E. Friedman (MIT), and Henry W. announces that SLAC was the particles, for the first time since it Ting (MIT) awarded the Nobel Prize Kendall (MIT) for their work in the site for the construction began operations in 1991. B-Factory in Physics for discovery of the J/y preferred development of the quark model. of the B Factory, after a prolonged Project completes installation of the particle. High Energy Ring-five 11 years ago, October 7, 1991: DOE analysis comparing SLAC with a site electron 1979: SPEAR early-and Positron Injection 23 years ago, October, "Tiger Team" arrives at SLAC for a at Cornell University. months becomes a 50-50 shared facility System Ready. four-week stay. 7 years ago, October 11, 1995: Nobel between SLAC and SSRL. During Prize in Physics shared by Martin 4 years ago, October 26, 1998: B- the 50 percent time when SPEAR 10 years ago, October, 1992: SSRL Perl (SLAC) (for the discovery of Factory (PEP-II) dedication. operation is dedicated to synchrotron becomes a division of SLAC. the tau lepton) and Frederick Reines radiation, the ring is filled only with For more information on the history of 9 years ago, October 1, 1993: Last (UC Irvine) (for the detection of the electrons, and no colliding-beam work SLAC, see: paper issue of Preprintsin Particles and neutrino). is done. http://www.slac.stanford.edu/history Fields produced. ago, October 27-31, 1997: 21 years ago, October 21, 1981: Fang- 5 years October 4, 1993: President Clinton SLD records more than 10,000 Z-zero Yi, Vice-Premier of the People's Page 2 Interaction Point October 18, 2002 Abandoned Ergonomics Bicycles Find Program New Homes Thrives at SLAC By Miriam Boon By Miriam Boon You may have noticed that the pink- When former Medical Director tagged bicycles around the Lab have Margaret Deanesly called for someone disappeared. They were removed to look into the treatment and for good reason: the Safeguards prevention of Repetitive Stress Injuries and Security Department (SSD) has (RSI), a condition caused by repeated begun an ongoing program in which movements such as typing, nurse abandoned bicycles will be collected Gloria Labrador volunteered to look to be recycled or, where possible, into it. Nine years later, Labrador has refurbished. built a successful ergonomics program at SLAC-from the ground up.

Celebration. Some of the bicycles had of Michigan, Labrador returned to Gloria Labrador (SHA) helps ensure that been left untouched for years. SSD SLAC armed with the knowledge to workstations are ergonomically correct. began collecting the bicycles in late fight RSI. She set up a program that their e-mail correspondences are kept August. Three bikes were claimed pro-actively screens staff for RSI, and on file for future reference. Used bicycles get a new lease on life. by the Transportation Department, helps them set up a work environment Even though computers are more where Alfonso Manuel (SEM) is The remaining ten bikes were passed that is ergonomically correct. pervasive than ever at SLAC, the reconditioning them so that they can on to Alan Conrad (PRC), who is "Since we started the ergonomics instance of RSI has surprisingly not be reused around the Lab. making arrangements to sell the bikes to SLAC staff. program, we have decreased RSI increased over time. "To the contrary," Two of the refurbished bicycles will be claims by 90 percent," Labrador said. Labrador explains, "because people available for use by SLAC employees. "How and when the bikes will be "I think we have a very good program are more aware, at the first sign they To request the use of a reconditioned sold has not been finalized, although over all. The success of the program come to the Medical Department" for bicycle, anyone can fill out a service we're shooting for early November," was the result of the Lab being willing treatment. request form, and if one is available it said Conrad. "Any money raised from to provide the right equipment, and of Labrador is preparing to leave SLAC will be issued at that time. these sales would go to SERA, the employee compliance." SLAC Emergency Relief Association." this month to start a new ergonomics A Service Request form is available O Pro-Active Treatment program at a Bay Area computer chip on the Web at: http://www- In 1997, a form called "Physical firm. Once she leaves, John Turek group.slac.stanford.edu/sem/ Requirement and Exposures (SHA), who has also been doing NonSafety/Default.htm Checklist" was revised to include ergonomic evaluations for the last five ergonomics. If it shows that a new years, will continue in this capacity. employee's job puts her or him in A replacement for Labrador has Sewer Safety danger of RSI, Labrador will contact not yet been chosen, but ergonomic Benefits You and the new hire about making an appointments are still available by ergonomic appointment. request. the Environment r "We have gone pro-active," she says information, call the Medical oI For more Ln emphatically. Approximately fifty By Michael Hug U) Department (Ext. 2281).* percent of the employees who are One of the incidents mentioned in contacted by Labrador respond, and was a 0 the recent Safety Stand Down u blocked sewer line that resulted in the 0 release of sewage into the storm drain ,r Squeaky Clean Sign, New Plants system. 1his sewer backup occurrea In sept. Welcome Visitors and Staff The release occurred on August 2, at 2000 in front of a building at SLAC. site for the new Guest the construction the treatment facilities, the treatment sewer line was House. The sanitary process and the environment. blocked with rocks, paper towels and cloth rags. Sewage spills can be a very noticeable gushing of water from a manhole, or a friendly reminder to folks at This is a slow water leak that may take time SLAC of the environmental damage to be noticed. Don't dismiss wet areas can that non-biodegradable products that cannot be accounted for. cause if flushed away. Look for: The careless disposal of items like cloth shop rags, paper towels, and * Drain backups inside the building block the sanitary rubber gloves can * Wet ground and water leaking sewer and increase SLAC's operation around manhole lids on your street 1_0) and maintenance costs. These a' 0 items complicate the treatment * Seeping water from cleanouts, CO a. of sewage and they can even get outside drains into .0 through wastewater systems * Unusual odorous wet areas: the environment. This costs the 0r sidewalks, external walls, grounds/ and can spoil the beauty 0 environment landscape Q. of our coastline. Please, use the sewer system for what The sign at the Main Gate sports a fresh new look, just in time for the 40th a difference? How can I make is was designed to accommodate. Anniversary Celebration. Jill Knapp (SEM) contracted Harris Construction to Don't flush personal items at all. Having a sewage backup is not a repair the sign. The company cleaned it, put a new coating on top, and then Anything that is not biodegradable pleasant experience. repainted the letters. New landscaping was placed around the sign as well. -Miriam Boon should be put in the trash. Specifically Who can I contact? anything containing plastic, but also latex products, sanitary napkins and To report a sewer backup or related even tissue! problem, please call the SEM service Women's Interchange at SLAC (WIS) is pleased to present: line at ext. 8901. You might be surprised to learn that Wanja Njuguna-Githinji tissue shouldn't be put in your toilet For questions or information, please Editor and writer from Kenya's Nation Media Group because it is not designed to break contact Mike Hug (Ext. 4042). Recipient of the 2000 CNN African Journalist of the Year award down like toilet paper. Also, don't Currently a John S. Knight Journalism Fellow at Stanford For more information about Speaking on: dispose of gasoline, oil, antifreeze Environmental, Health and solvents and or other hazardous Safety at SLAC, see: http:// "Issues that Affect Women in Africa" materials into the sewer system. These www.slac.stanford.edu/esh · Tuesday, October 22, 2002 items can cause serious injuries to 12 Noon - 1 pm Panofsky Auditorium Utility Workers and cause damage to

Interaction Point October 18, 2002 Page 3 Talks Review SLAC POLICIES AND PROCEDURES UPDATE Safeguards, FY 03 Travel Reimbursement Transportation Update Please Check That Your Security Rates For Visitors Coming to Regarding Refueling of GSA Colleagues Have The Correct SLAC Vehicles: SLAC Mailing Address The Panofsky Auditorium was The FY2003 travel per diem rates for The Sand jam-packed for three sessions of Effective immediately, Sharon Hill Road Address Ensures travelers visiting SLAC have been Heights Gas the 1st Annual SLAC Security Station is to be used for Quicker Service released by the Government Services "FUELING PURPOSES ONLY." GSA Briefing, held September 26. These This is a good opportunity to remind Administration (GSA). will no longer authorize repairs or one-hour briefings presented everyone once again to parts purchased from this station. use SLAC's practical information about SLAC's Lodging Rate correct street mailing address: Only regular unleaded fuel is safeguards and security program, The FY2003 lodging rate remains at permitted for use in SLAC gasoline 2575 Sand Hill Road along with helpful tips anyone could $150 maximum per day for Visitors, vehicles. Full Mail Stop XX use both at work and at home. service is to be used only when SLAC is reimbursing the travel by disabled persons. Menlo Park, CA 94025 Presentations included site access, expenses. Fueling Instruction for GSA Vehicles The Stanford Post Office Box property protection, cyber security, Meal & Incidental Rate Address Can Be Used emergency preparedness, and Fueling instructions are available foreign travel tips in a post-9/11 The meals and incidental expense inside each vehicle's plastic credit card SLAC's PO Box number was changed environment. (M&IE) rate has increased from $46 holder next to the credit card. from PO Box 4349 to PO Box 20450 on to $50 maximum per day. The M&IE December 27, 1999. This change was Survey Results Will Influence "Next If you have an attendant manually rate for the travel days to arrive at announced on January 12, 2000 via the Steps" in ISSM charge your GSA credit card, make and depart from SLAC will continue SLAC Bulletin Board. sure the charge states the actual items Attendees were asked to fill out to be reimbursed at 75% of per diem purchased. Do not accept a receipt The Stanford U.S. Post Office Manager surveys asking for their opinion ($37.50). The breakdown for M&IE is for regular unleaded fuel that shows has been forwarding the mail with on the future direction of SLAC's Breakfast 20% ($10), Lunch 20% ($10), on the receipt "premium fuel" or "full the old PO Box address to 20450. Integrated Safeguards and Security Dinner 60% ($30). serve" service. However, at times the mail is not Management (ISSM) program. The The lodging and M&IE forwarded and instead is returned results of the 325 returned surveys Contact: reimbursement is reduced to 55% to the sender. Please alert your will be analyzed by the Directorate ($82.50 per day for lodging and $27.50 Lata I. Fangupo, Transportation colleagues of the correct PO Box as they plan ahead for the "next best per day for M&IE) of the standard rate Department, Ext. 3185, number if you wish to continue to steps" in this area. when the visit to SLAC is longer than lata(@cslac.stanford.edu receive mail through the Stanford Post So far, the survey responses 30 days. The reduction is effective Office. Paula Grenda, Transportation have shown that 96% of SLAC from the first day of the trip. Department, Contact: Ziba Mahdavi (BSD), Ext. staff members felt confident Ext. 2238, Contact: Alison Minard, Travel [email protected] 4458, [email protected] supervisors would take security Reimbursement Office, Ext. 4346, concerns seriously and would take [email protected] appropriate action. IrplrrJlqCCL Iqr----r I·IIll·C--l ·ICI--ICP$re I The "ISSM Expo" tables set up in Don't miss the annual the breezeway as an adjunct to the Flu Shots Available Annual Briefing garnered several positive comments from staff. in the Medical Department CYBER FAIRE (Bldg. 41, Rm. 135) Attendees were given many helpful Wednesday, November 13, 2002 handouts, plus ISSM promotional Tues., Wed., Thurs. 10:00-11:00 a.m., 10 a.m. to 2 p.m., Panofsky items such as calendars and key tags. 1:30-2:30 p.m. Auditorium Lobby & Breezeway Hundreds of free house keys were made on-the-spot. No Appointment Necessary For more information call Ext. 2281 For more information see: For more information on the ISSM http://www2.slac.stanford.edu/comp/edu/cyber_faire. htm program at SLAC, contact: '1 r I L r "I C ·- I

Doug Kreitz, [email protected] j * j R N N du, Ext. 4550 Upcoming Events MILESTO NES The Interaction Point Mon. 21 Oct. 2002 4:15 p.m. Mon. 4 Nov. 2002 4:15 p.m. 5-Year Service Awards Editorial Team Panofsky Auditorium, Panofsky Auditorium, Linebarger, Wayne (ESD), 35 years, Neil Calder (Refreshments at 3:45 p.m.) (Refreshments at 3:45 p.m.) 10/2/02 Nina Adelman Stolar SLAC DEPARTMENTAL SLAC DEPARTMENTAL Quinn, Helen (THP), 25 years, 10/1/02 Katherine Bellevin COLLOQUIUM COLLOQUIUM Gregory, Diana (BAS), 25 years, Contributing Editors Ulrich Wiedner, Uppsala U Yosef Nir, Weizmann Institute 10/10/02 Antrim, Vickee Flynn Hadron Physics with Antiprotons Heavy Quark Physics Ronald (PUR), 15 years, Ziba Mahdavi 10/1/02 Linda DuShane White Tues. 22 Oct. 2002 Noon Wed. 13 Nov. 2002 Jacob, Ardie (WM), 15 years, 10/1/02 Writers Panofsky Auditorium Brenkus, Frank (SEM), 15 years, SLAC WOMEN'S INTERCHANGE Panofsky Auditorium, Lobby/ Tom Mead Breezway, 10 a.m. - 2 p.m. 10/1/02 Miriam Boon SEMINAR O'Connor, Clive (KLY), 15 years, Wanja Njuguna-Githinji, Nation SLAC SCS *SPECIAL* EVENT Photography/Graphics 10/5/02 Media Group, Kenya Staff Members, SLAC Diana Rogers Retired Issues that Affect Women in Africa Cyber Faire: Demonstrations and Michael Hyde Information Walsh, Harry (MFD), 09/30/02 Distribution Tues. 22 Oct. 2002 12:30 pm Ii Mon. 25 Nov. 2002 4:15 p.m. iDeceased Crystal Tilghman Orange Room I Panofsky Auditorium, Lebacqz, Jean Victor, (formerly with Wanda Elliott SLAC EXPERIMENTAL SEMINAR I (Refreshments at 3:45 p.m.) ,KLY), age 91, on 9/30/02 John Womersley, FNAL I The Interaction Pointis published bi- SLAC DEPARTMENTAL i Lundin, Aaron (formerly with EFD ii What's new at D-Zero I monthly every first and third Friday. COLLOQUIUM | and ESD), age 77, on 10/11/02 Submissions are due the second and Wed. 30 Oct. 2002 4:15 pm W.K.H. Panofsky, SLAC I fourth Tuesdays of each month. o submit a Milestone, see: Orange Room, Nuclear Weapons After the Cold War I http://www.slac.stanford.edu/pubs/ i Send submissions to (coffee/cookies 4:00 pm) tip/milestoneindex.html I [email protected], or mail to SLAC ASTROPHYSICS SEMINAR Please send additions to: seminars()slac.stanford.edu TIP Editor, MS 58, Stanford Linear Raoul Viollier, U of Cape Town See Awarlds and Honnors at: I Accelerator Center, 2575 Sand Hill Road, Menlo Park, CA 94025. Sterile Neutrino Dark Matter at the For complete event listings, see: http://www.slac.stanford.edu/slac/ Center and in the Halo of the Galaxy http://www.slac.stanford.edu/grp/ i award/ TIP is available online at: pao/seminar.html http://www2.slac.stanford.edu/tip/ I . . .d ...... L

Page 4 Interaction Point October 18, 2002