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The TRIUMF Newsletter News from ’s National Laboratory for Particle and Nuclear

NSERC presented a 2004 Synergy Award for Innovation to ICFA Meeting at TRIUMF TRIUMF and MDS for their 26 year university-industry partenership for the production of medical . wo meetings of international organizations Trepresenting the fi eld were held at TRIUMF on 10/11 February 2005. The International Committee for Future Accelerators (ICFA) is an organization in which discussions can take place on international aspects of particle

physics, in particular the large accelerators that Studios Limited Photo courtesy of Pirak are at the heart of this fi eld. The Committee’s 16 members are approximately representative of particle physics activities in the different regions of the world. ICFA met on the evening of 10 February and all day 11 February. In addition to Committee members, directors of major world particle physics laboratories were also invited to the meeting. The 15-member International The award was received from NSERC by representatives from TRIUMF Linear Collider Steering Committee (ILCSC) and MDS Nordion at a ceremony in Waterloo, Ontario. (from left to right) J.Porter (MDS), G. Maloske (MDS), T. Brzustowski (NSERC President), is a subcommittee of ICFA whose primary role J.M. Poutissou (TRIUMF), P. Gardner (TRIUMF), A. Shotter (TRIUMF Director), is to promote the construction of an electron- I. Trevena (MDS) and B. Pate (TRIUMF-retired). linear collider through world-wide collaboration; it met on 10 February. The major (although not only) item on the agendas of both meetings was the selection of DIRECTOR’S NOTES a director for the International Linear Collider Global Design Effort; this is the body which n the Federal Government’s March produced the first radioactive beam from an will coordinate the world’s linear collider Ibudget announcement, TRIUMF was ion source based on the resonant ionization design and R&D efforts, at least until a group pleased to learn that the government had method at TRIUMF. This was a major of governments formally take over this task. agreed to renew TRIUMF’s current 5-year achievement since the ion source produced ILCSC had organized a search for a director, (2000-2005) funding for a further 5-year its first beam well ahead of schedule. Jens and an ILCSC subgroup had evaluated and period (2005-2010). The laboratory and the Lassen, the TRILIS groups leader, describes interviewed candidates. On 10 February, ILCSC community it serves are very grateful for in this newsletter how this ion source opens interviewed the leading candidate and then this support and indication of confidence up possibilities for many new radioactive made a recommendation for an offer, which was in the laboratory’s mission. The funds beams at TRIUMF. subsequently approved by ICFA on 11 February. allocated for the 2005-2010 period will not As mandated by the government, On 18 March 2005, it was announced that Barry be enough to cover all the projects identified TRIUMF has the responsibility of Barish of Caltech had accepted the position. in the original plan as submitted, so some transferring its technical expertise to the The Chairs of both ICFA and ILCSC wish prioritization will be needed as well as the benefit of society. Over many years, to thank TRIUMF for its kind and warm pursuit of extra funds for specific projects. TRIUMF has built a highly successful hospitality.• Roy Rubinstein (Fermilab) Congratulations to the ATLAS Canada collaboration with its commercial partner Secretary, ICFA and ILCSC group for having successfully passed a MDS Nordion. This partnership is now major milestone in the construction and responsible for delivering over 2.5 million For more information on ICFA, visit the website at: http://www.fnal.gov/directorate/icfa/icfa_home.html installation of the End Cap calorimeters of patient radiation treatments per year for the ATLAS detector at CERN. The first of either therapy or diagnostic purposes. In WHAT’S INSIDE the two End Caps has been successfully recognition of this outstanding record, the Facility Developments 2-3 tested in its cryostat at liquid Natural Sciences and Engineering Research Laser Ion Source temperature (86K) and is presently being Council presented a 2004 Synergy Award T2K Lab readied for transport to its final location to the partnership (see photo above). The Research Developments 4-5 Lithium 11 Halo in the ATLAS pit. The first End Cap is award money will be used to help support TWIST scheduled to be lowered into the pit during students in the life sciences.• Applied Science 6 the summer, and the second one will be Outreach 7 lowered in November this year. Alan Shotter, TRIUMF Director Back Page 8 Congratulations are also due to the Upcoming Dates For more information on TRIUMF Projects, visit the TUEC News TRILIS team that in December 2004 TRIUMF website at: http://www.triumf.info

VOL 3 NO. 1 APRIL 2005 AVAILABLE ONLINE AT WWW.TRIUMF.INFO/PUBLIC/NEWS/NEWSLETTERS.PHP PAGE 1 Laser Ion Source’s First Radioactive Beam at ISAC TRIUMF’s Contributions

RILIS, “TRIUMF’ “TRIUMF’ss Resonant he Standard Model (SM) of particle TIonization Laser Ion Source” adds Tphysics is such a successful theory several tunable, pulsed lasers to the that a great deal of experiemental effort is surface ionization source, such that all focused on finding results the theory cannot complexity of TRILIS is serviceable and explain. The search for “physics beyond the far removed from the high temperature, Standard Model” has become a crusade-like radiation environment of the quest, and it seems that physicists have seen production target.target. The delivery of their first glimpse of the promised land: 1.5*103 atoms/s of 62Ga (116 ms half- the neutrino, long thought to be massless, life) from the targettarget – r esonant laser actually has a tiny mass. ion source combination demonstrates are fundamental subatomic the new possibilities for beam delivery, particles, which interact with matter only with an intensity enhancement of 2×, Fig. 2. Laser excitation scheme used for beam via the weak-interaction. For example, they delivery in Dec 2004. With only one combined with a 20× suppression of prototype frequency tripling unit a factor of are produced when neutrons or protons the 62Cu isobaric contaminant over pure 2x in 62Ga ion yield and a 20x suppression decay inside a radioactive nucleus. In the surface ionization. of the 62Cu background was achieved over SM there are three types (or flavours) of surface ionization. This marks an important milestone massless neutrinos, which always maintain for the isotope separator and accelerator laser ion sources by our collaborators at the their identity (flavour conservation). facility (ISAC) as this opens up the University of Mainz (Germany). The joint However, if neutrinos have mass, as they availability of a wide range of radioactive laser development continues. travel they can oscillate through quantum isotopes that previously could not be The successful laser ion source operation mechanical interference from one flavour ionized. Figure 1 shows that on top of the shows that LIS beam development can type to another, and back again. Proving alkali metals and alkaline earths, now also proceed for a host of new beams. Schemes the existence of neutrino oscillations would most of the transition metals, lanthanides for TiSa laser based ionization of Sn, Ni, show that neutrinos have mass, and that and actinide elements can be ionized. Thus Ca, Tc, Ga, Ge have been established. One lepton flavour is in fact not conserved. more elements from the isotope production such scheme is shown in Figure 2. With Such convincing evidence recently has of the ISAC targets can be extracted as ion TRILIS operational, ISAC is can develop been obtained in measurements of neutrinos beams for experiments. and produce new radioactive ion beams produced in the sun (solar neutrinos), nuclear The technique of “Resonant Ionization of high intensity and purity, thus allowing reactors, and in the upper atmosphere Mass Spectrometry”, with its high selectivity TRIUMF-ISAC to continue to be one of the (atmospheric neutrinos) by experimental and sensitivity, is key to the new laser ion leading radioactive ion beam facilities.• groups in Japan and at the Sudbury Neutrino source. Unlike conventional ion sources, observatory (SNO) in Ontario. resonant laser ionization uses the optical [email protected] Jens Lassen spectroscopic fingerprint for each element to provide selective ionization. Element- selective ionization, combined with the ISAC mass-separator provides new isotope beams of superior purity – which is essential to many high precision nuclear physics measurements. The opportunity presented by the on-line test for TRILIS beam was seized by the 8π nuclear spectroscopy collaboration to measure the unknown nuclear branching ratios of 62Ga. About one year ahead of schedule TRILIS proves that state of the art, all solid-state laser systems are capable of providing the laser power and reliability needed for on-line ion-source operation. This has been the first time that such an all solid- state laser system has been used for on-line Fig. 1. Elements accessible to TRIUMF’s TiSa laser based resonant production of radioactive beams. The high ionization laser ion source (TRILIS). repetition-rate, tunable, titanium:sapphire (TiSa) lasers are a special development for PAGE 2 VOL 3 NO. 1 APRIL 2005 FACILITY DEVELOPMENTS to the T2K Collaboration in Canada

These experiments gave the first evidence function magnet design. Japanese of physics beyond the SM, and the very T2K scientists visited TRIUMF to light neutrino masses (compared to charged tap our expertise in and leptons) implied by the data indicates new target station design. Neutrinos are physics effects at an extremely high energy produced by a high intensity proton scale, such as grand unification or extra beam, which hits a target, creating dimensions of space-time. , which decay subsequently π→µν Measuring the solar and reactor neutrino producing neutrinos ( ). The Fig.2. Conceptual design of the off-axis near detector (atmospheric) oscillations has provided the target station, where much of the coupling between first and second (second mega-watt beam energy is released,

and third) flavours of neutrinos, θ12(θ23) will require full remote maintenance detector,detector, and for the monitor based on respectively. The next step is an experiment similar to the (much smaller) ISAC target an array of diamond sensors. OTR detectors to determine the remaining parameters station at TRIUMF. Detailed engineering have been used for electron machines and describing (the so-called design of the target station is in progress recently adopted for proton machines at MNSP matrix), including the coupling and TRIUMF is expected to contribute to CERN and FNAL, and are likely the only

between first and third flavour (θ13) and its the remote handling and shielding designs. monitors that would work in the target’s

complex CP-violating phase (∆CP), which Other accelerator components like the extremely high radiation environment. The will help shed light on the unknown very beam damper system in the main ring, the diamond sensor has been tested successfully high energy scale physics. extraction kicker magnet, and radiation at a current neutrino beam line at KEK. The most promising avenue for measuring hard magnets are also being considered as Neutrino oscillations are observed by the MNSP parameters is to study neutrino potential TRIUMF contributions. measuring neutrino flux in the far detector, oscillations using so-called “superbeams” The neutrino source will be monitored at Super-Kamiokande, compared with that in -- high intensity neutrino beams derived three locations (the primary proton beam an off-axis near detector placed in the same from the decays of pions. The Japanese T2K monitor, the muon monitor at the beam direction as the far detector. The off-axis experiment will send a neutrino beam from a dump, and an on-axis neutrino monitor), near detector will consist of fine-grained new 1 megawatt accelerator at JPARC (Japan which are essential to understand and control calorimeters (FGD) and time projection Proton Accelerator Research Complex) in the neutrino beam. The Canadian group is chambers (TPC), and an electromagnetic Tokai to the world largest water Čerenkov responsible for providing a proton beam calorimeter, all placed inside a large dipole detector hundreds of kilometres away at profile monitor in front of the target based magnet formerly at CERN (Fig.2). The Super-Kamiokande (Fig.1). The project has on an optical transition radiation (OTR) Canadian group is in charge of the three 2.4m × 2.4m × 0.9m TPCs, and of a FGD been approved by the Japanese Fig.1. High intensity neutrino beam will be sent from the government and the neutrino new neutrino beamline at J-PARC facility to the Super- based on water-soluble scintillator. The beamline construction started in Kamiokande detector which is located 295 km away. FGD also acts as a neutrino target, with a April 2004. The commissioning granularity of about 1cm × 1cm required of the J-PARC accelerator is to be able to detect recoil protons from scheduled for 2008 and the first the quasi-elastic scattering process, νµn→ T2K neutrino beam is expected in µ- p. Because the far detector is water, the spring of 2009. near-detectornear-detector scintillator with high water The T2K collaboration in content is desired. By adding a surfactant, Canada consists of scientists we have achieved 70% water content with and students at TRIUMF, the water soluble scintillator contained in 1cm Universities of Alberta, UBC, × 1cm corrugated polypropylene panels. Carleton, Montreal, Toronto, The emitted light is read out by wavelength Victoria, and York. Among shifting fibers, perhaps to be read out the earliest collaborators, the with multipixel Geiger-modeGeiger-mode avalanche Canadian group introduced photodiodes. R&D for the scintillator and essential design concepts, such photosensor are underway.underway. Prototypes

idea of the νµ→νe oscillation of both the TPC and the water-soluble analysis and narrow band off- scintillator will be constructed and tested at axis beam, and contributed to TRIUMF this year.• the accelerator beam dynamics Akira Konaka study, dual abort/extraction For more information about the T2K collaboration, kicker design, and the combined visit the website at: http://neutrino.kek.jp/jhfnu/

AVAILABLE ONLINE AT WWW.TRIUMF.INFO/PUBLIC/NEWS/NEWSLETTERS.PHP PAGE 3 First Determination of the 11Li Nuclear Charge Radius TRIUMF’s Testing of the Standard Model in Muon Decay _ + + uclear physicists discovered ormal muon decay (µ → e νe νµ) is Ntwenty years ago that some Nan ideal process to investigate the of the lightest nuclei can have a electroweak interaction in the Standard matter radius as lar largege as those Model. The reaction involves only leptons, found in the heaviest naturally obviating the need for uncertain strong occurring elements [1]. This was interaction corrections, thus making it a clean explained by weakly bound probe of the theory’s purely left-handed (V-A) nucleons that form a dilute cloud structure. A high-precision determination of around a central nuclear core [2]. the parameters describing the muon decay Such a structure is called a neutron spectral shape explores physics possibilities halo. A schematic picture for the beyond the Standard Model, for example structure of the two-neutron halo those involving right-handed interactions. nucleus 11Li is shown in Figure The world’s most precise such determination

1. The wave-function of the halo Fig. 1. Comparison of the size of the stable nucleus has been the goal of the TRIUMF Weak neutrons extends far away from 208Pb with the halo nucleus 11Li which consists Interaction Symmetry Test (TWIST). The the 9Li core, much further than of a compact core and a diffuse cloud of collaboration has recently completed its nucleons. it would be classically allowed. first phase by directly measuring the muon Indeed the neutrons spend more decay parameters ρ and δ, improving on the than half of the time outside the in 109, including the combined effects of accepted Particle Data Group (PDG) values range of the strong nuclear force. These electron correlation, relativity and quantum for the two spectral shape parameters by findings initiated a new field of nuclear electrodynamics [3]. On the experimental physics research. The most prominent side, a method was developed at GSI 11 1 I. Tanihata, H. Hamagaki, O. Hashimoto, Y. Shida, N. representatives of halo nuclei are Li, Darmstadt (Germany) that is both very Yoshikawa, K. Sugimoto, O. Yamakawa, T. Kobayashi, 6,8He, 11Be, and 8B. The halo structure is accurate and extremely sensitive and is able and N. Takahashi, Physical Review Letters, 55 (1985) particularly sensitive to the effective forces to handle the small production rates and 2676-2679. 11 2 P.G. Hansen and B. Jonson, Europhysics Letters, 4 acting between nucleons, and the charge the short lifetime of Li.[4] In June 2004 (1987) 409-414. radius of these nuclei provides important the experiment was installed at TRIUMF 3 Z.-C. Yan and G.W.F. Drake, Physical Review A, 61 information about the influence of the halo in the ISAC experimental hall. After first (2000) 022504. on the nuclear core. However, the charge tests with 8,9Li in September, a 11Li beam of 4 G. Ewald, W. Nörtershäuser, A. Dax, S. Götte, R. radius of the most famous halo nucleus 11Li approximately 35,000 ions/s was delivered Kirchner, H.-J. Kluge, T. Kühl, R. Sanchez, A. Wojtaszek, B.A. Bushaw, G.W.F. Drake, Z.-C. Yan, cannot be measured by the usual method of by the ISAC surface ion source during the and C. Zimmermann, Physical Review Letters, 93 electron scattering because the abundance of beamtime in October 2004. With an overall (2004) 113002. this isotope is too low and its lifetime is too efficiency of 10-4, resonance short (only 8 milliseconds). In a combined signals like that shown in effort of theoretical and experimental atomic Figure 2 were recorded within physics, an international collaboration 15 minutes. Analysis of these with groups from Germany, Canada, and curves will result in the first the US has overcome both theoretical and model-independent value for experimental difficulties. They developed a the charge radius of 11Li. It will sensitive and accurate method to determine provide a critical test of nuclear the charge radius via a measurement of the models that have been proposed isotope shift – the change in an electronic for the effective forces holding transition frequency between isotopes. this fragile halo structure Normally, this method cannot be applied together.together. It is of great interest to radioactive isotopes of elements lighter because the understanding than sodium because the tiny effect of the of effective nuclear forces charge radius on the transition frequency is important to determine, cannot be separated from other mass- for example, the structure of dependent corrections to the electronic neutron stars or the pathways of energy levels. On the theoretical side, stellar nucleo-synthesis to form

the intractable problem had to be solved the elements of which we are Fig. 2. Laser-induced resonance signal of 11Li. to calculate the three-electron energy made.• levels to the required accuracy of 1 part W Wilfriedilfried Nörtershäuser

PAGE 4 VOL 3 NO. 1 APRIL 2005 RESEARCH DEVELOPMENTS

TRIUMF’s Testing of the Standard Model in Muon Decay

factors of 2.5 (ρ) and 2.9 (δ) [1, 2]. The four so-called “Michel parameters” describe the distribution in ener energygy and angle of from polarized muon decay. The spectrum’s isotropic part has a momentum dependence determined by ρ plus an additional small term proportional to a second parameter, η. The asymmetry is proportional to a third parameter ξ multiplied

by the muon polarization, Pµ , while a fourth parameter, δ, determines its momentum dependence. Within the Standard Model, these parameters are predicted to be ρ = ¾¾,, δ = ¾, ξ = 1, and η = 0. Beams of positive are used by TWIST since they can be produced with high polarization and high stopping density. The high intensity TRIUMF proton beam produces π+, some of which decay at rest at the surface of a production targettarget to create a highly polarized “surface” muon beam with momentum 29.6 MeV/c, which is subsequently transported into a 2T superconducting solenoid. A Surface µ decay spectrum Fig. 1. Schematic diagram of TRIUMF’s schematic diagram of the TWIST TWIST muon-decay spectrometer spectrometer is shown in Figure 1. Most of the muon beam stops in a thin target,target, located at the center with 90% c.l. The lower limit 0.9960 < Pµ ξ of a symmetric array of 56 low slightly improves the limit on the mass of mass, high precision planar drift the possible right-handed boson, WR ≥ 420 chambers. Limitations on final GeV/c2. Finally, an upper limit is found for errors are dominated by systematic the muon right-handed coupling probability, µ effects since the statistical precision Q R<0.00184 at 90% c.l. is very high. Muon decay, combined with complement- The measured momentum and ary measurements from experiments at angle distribution of the decay higher energies and in nuclear beta decay, positrons is shown in Figure 2. The help our understanding of the asymmetry drop in acceptance near |cosθ | = in the weak interaction’s handedness and whether symmetry may be restored at higher 0 is due to the poor reconstruction Fig. 2 The observed momentum and angular efficiencyefficiency in that region. TToo extract distribution of the positrons from muon decays energy scales. In the future phases of the the muon decay parameters, a at rest in the TWIST spectrometer. experiment, TWIST aims to produce a direct two-dimensional fit is made to a measurement of Pµ ξ with a precision of few fiducial region where the detector parts in 104 and to increase its sensitivity to TWIST’s new measurement of ρ = 0.75080 acceptance is essentially uniform, utilizing ρ and δ by approximately another factor of ± 0.00032(stat.) ± 0.00097(syst.) ± 0.00023 a blind analysis technique. The results are five.• (last uncertainty due to the current PDG based on 6 × 109 muon decays, spread over Mina Nozar error in η) sets an upper limit on the mixing sixteen data sets. Four sets were analyzed angle of a possible heavier right-handed 1 J.R. Musser et al, Phys. Rev. Lett. 94, 101805 (2005), for both ρ and δ. A fifth set of low polarized partner to the W boson, |ζ| < 0.030 at 90% c.l. hep-ex/0409063. muons from decays in flight was also Combining ρ with the new measurment of δ 2 A. Gaponenko et al, Phys. Rev. D 71, 071101(R) analyzed for ρ. The remaining data sets, (2005), hep-ex/0410045. = 0.74964 ± 0.00066(stat.) ± 0.00112(syst.), combined with further MC simulations, were and the PDG value of P ξ δ /ρ, an indirect used to estimate the sensitivities to various µ For more information about the TWIST experiment, limit is set on P ξ: 0.9960 < P ξ ≤ ξ < 1.0040 systematic effects. µ µ visit the website at: http://twist.triumf.ca

AVAILABLE ONLINE AT WWW.TRIUMF.INFO/PUBLIC/NEWS/NEWSLETTERS.PHP PAGE 5 APPLIED SCIENCE

Phytoplankton Research May Help Battle Global Warming

ith help from TRIUMF’s Positron the last approximately 400,000 years,” she WEmission Tomography (PET) Group, explains. Dr. Maria Maldonado of the University When fossil fuels are consumed in cars of (UBC) is conducting and industrial processes, CO2 and other research that may provide a scientific basis greenhouse gases that contribute to global for emerging strategies aimed at controlling warming are produced. Some believe global warming. Dr. Maldonado holds a that climate change can be mitigated by Canada Research Chair in Phytoplankton actively stimulating greater CO2 uptake in Trace Metal Physiology, and is an Assistant phytoplankton by adding specific nutrients, Professor in UBC’s Earth and Ocean such as iron (Fe), to ocean waters. Sciences department. She is studying how Scientific research has indicated that Fe Annett et al. copper (Cu) affects carbon dioxide (CO ) Higher Cu requirements under Fe-limitation 2 supports phytoplankton growth and efficientefficient uptake in phytoplankton. Phytoplankton are are consistent with the role of Cu in high- CO2 uptake. However,However, Dr.Dr. Maldonado’sMaldonado’s affi nity Fe transport system. microscopic ‘aquatic plants’. Like plants, preliminary research suggests that in waters phytoplankton take in CO and through 2 with very low concentrations of Fe, such Annett, are one of only a handful of teams photosynthesis, convert it into sugars that as in parts of the Subarctic Pacific and studying this phenomenon, and are the first they can consume as food. It is through Southern Oceans, Cu may act as a substitute to demonstrate the important physiological photosynthesis that phytoplankton play for Fe. Furthermore, Cu appears to facilitate role of Cu in Fe uptake in these tiny aquatic an integral role in regulating atmospheric Fe uptake and influence photosynthesis in CO levels. Without phytoplankton, the marine organisms. 2 these conditions. Dr. Maldonado, along with Earth’s atmospheric CO level would be TRIUMF has thus far been providing 2 UBC students Shannon Harris and Amber 64 significantly higher than the 360 parts per the copper radioisotope Cu for this study; million we observe today. however, with cooperation from MDS Cu requirements of oceanic diatoms are Nordion, TRIUMF will soon provide 67Cu, Dr. Maldonado warns that despite CO2 higher than those of coastal diatoms. This is in contrast to Fe requirements. as it has a much longer half-life than 64Cu uptake by phytoplankton, global CO2 levels are rising. “Over the past century, (2.58 days versus 12.4 hours). The longer half-life will enable the UBC researchers industrial emissions of CO2 have resulted in an exponential increase in atmospheric to take the tracer to sea for studies with on-site ocean water. Suzy Lapi, an SFU CO2 to values not seen on earth in at least Ph.D. student working at TRIUMF, and Dr. Tom Ruth, Director of the TRIUMF- UBC PET Program, produce the copper isotopes. Over the course of the year, Dr. Maldonado’s team will use these isotopes Annett et al. to investigate the distribution of Cu in the various cellular compartments of the phytoplankton to determine possible biochemical substitutions of Fe by Cu. Following this, the actual mechanisms of Cu uptake and kinetics of Cu transport in phytoplankton will be examined. The group plans to publish its findings by the end of this year. • Patrick Lee

For more information about Applied Science at TRIUMF, visit the Technology Transfer website at:

64 SFU Ph.D. student Suzy Lapi prepares a sample of Cu for use in Dr. Maria http://www.triumf.info/public/tech_transfer/tech_transfer_5.php Maldonado’s phytoplankton research.

PAGE 6 VOL 3 NO. 1 APRIL 2005 OUTREACH

TRIUMF and the World Year of Physics

his year physicists around the world PhD and music composition student Tare celebrating the 100th anniversary of Aaron Hryciw. Albert Einstein’s annus mirabilis, when as a TRIUMF and the UBC Physics patent clerk working in Bern, Switzerland, department will open their doors to he published 4 papers that revolutionized host an open house on Saturday June physics. To commemorate Albert Einstein’s 4, when the general public is invited extraordinary scientific legacy, the United to come and visit the laboratories and Nations General Assembly proclaimed whet their physics appetites. Planning An audience of adults and students packs the 2005 to be the World (or International) Year is at an early stage so those interested TRIUMF auditorium during one of the Saturday of Physics (WYP2005), when physicists should visit the TRIUMF web page Morning Lectures. world-wide are sharing their periodically for event details. vision and passion for TRIUMF has been involved in of modern science, and physics education. physics with the general organizing and supporting public lectures Next October, the BCAPT will host the public through lectures, designed to popularize the wonders of third teachers’ Professional Development open houses, science Einstein’s scientific legacy. Cosmologist Day at TRIUMF, where teachers from fairs, and other events. The Rocky Kolb of the University of Chicago across the province attend lectures and Canadian Association of Physicists (CAP) gave a lecture Feb. 28 to a packed audience take part in demonstration experiments. At is leading the WYP2005 in Canada, and at the Harbour Centre in downtown this spring’s Greater Regional TRIUMF is playing a central role in event Vancouver. April 16, the TRIUMF- Science Fair April 7-9, and the Canada- planning, with Outreach Coordinator sponsored Vancouver Institute lecture will wide Science Fair, TRIUMF is sponsoring Marcello Pavan on the national WYP2005 be by Barry Barish (a member of the U.S. several awards, including a special organizing committee, and Associate National Science Board) on Einstein’s WYP2005 prize in conjunction with the Director Jean-Michel Poutissou co-chair legacy in gravitational physics. Former CAP for the best physics-related project. of the local organizing committee for the TRIUMF Director will give the And this year, MDS Nordion has joined CAP Congress 2005, to be held June 5-9 at Ovenden Memorial lecture at Vancouver’s TRIUMF and the BC Innovation Council the University of British Columbia (UBC) H.R. MacMillan Space Centre April 18 in sponsoring a second high school student in Vancouver. on Einstein’s role in the development for the summer High School Fellowships. The CAP Congress will be the centrepiece of modern physics. Professor Vogt had About 110 of the very top students in B.C. of Canadian WYP2005 celebrations. It met Einstein personally, and so will be applied for the fellowships, and the two will be launched at UBC’s Chan Centre peppering his talk with personal anecdotes winners will spend a six-week research with the public Herzberg Memorial of their interactions. Professor Vogt will experience at TRIUMF in July and August. Lecture by (Canadian) Clifford Will of preview his talk for the final Saturday Raising public awareness of physics Washington University in St. Louis. An Morning Lecture (SML) series event April is also a key mandate of the WYP2005 expert in general relativity and cosmology, 16 in the TRIUMF auditorium. The SML organizing committee. TRIUMF worked Professor Will’s lecture subsequently will series has focused on the modern legacy with the Vancouver Playhouse on its be repeated in a fall cross-country tour. of Einstein’s famous 1905 papers and has production of the play “Copenhagen” Immediately preceding the Herzberg been very well received. The program will (about Bohr and Heisenberg’s famous Lecture, UBC’s critically acclaimed continue in the fall, not only at TRIUMF Copenhagen meeting in 1941) and is Borealis String Quartet will be premiering but in other B.C. communities as well. consulting on a new play for the Art’s Club a new work specially composed for the Additional public lectures covering theatre July 11-23 entitled “Other Fred’s”. Congress by physics Einstein’s legacy are also planned for the Local and national media outlets, including autumn months. the CBC, have shown considerable Enhancing physics education op- interest in the WYP2005, with a wide portunities is a key goal of the WYP2005, variety of radio, print, and TV projects and TRIUMF is actively involved in either completed or being planned. Those events targeted specifically to high-school interested in WYP2005 should stay tuned students and teachers. The CAP Division to their local news outlets, or periodically of Physics Education, the BC Association check the TRIUMF and CAP websites for of Physics Teachers (BCAPT), and event information.• Marcello Pavan TRIUMF are hosting at the CAP Congress For more information, visit the following websites: a mini-symposium specifically for high TRIUMF WYP: http://www.triumf.info/public/wyp/ school teachers, where they will listen to CAP: http://www.cap.ca/wyp/index.asp talks covering Einstein’s legacy, history The main WYP2005 site: http://www.wyp2005.org

AVAILABLE ONLINE AT WWW.TRIUMF.INFO/PUBLIC/NEWS/NEWSLETTERS.PHP PAGE 7 Contact Information: Important Upcoming Dates * see insert TRIUMF: 4004 Wesbrook Mall, Vancouver, B.C. V6T 2A3 Canada ACOT Advisory Committee on TRIUMF meeting May 6-7 TRIUMF Canadian Association of Physicists Telephone.………………604-222-1047 CAP ‘05 June 5-8 UBC Fax………………………604-222-1074 2005 Annual Congress Website……………….www.triumf.info Open House TRIUMF/UBC Open House June 4 TRIUMF/UBC Director: A.C. Shotter [email protected] BOM TRIUMF Board of Management Meeting June 17 TRIUMF Associate Director/Science: Molecular and Experiments MMSEEC* June 23-24 TRIUMF J-M Poutissou [email protected] Evaluation Committee meeting Subatomic Experiments Evaluation Accelerator Technology: SAPEEC* July 7-8 TRIUMF E. Blackmore [email protected] Committee Meeting

Cyclotron Operations: TSI 05* TRIUMF Summer Institute July 11-22 TRIUMF R.Poirier [email protected]

ISAC Division: operation. The users are represented in the Beam P. Schmor [email protected] TUEC NEWS Development Strategy Group by the TUEC Technology Transfer: chair. This group provides guidance to give P. Gardner [email protected] he TRIUMF Users’ Group (TUG) has priorities for ion source and target development. Administration and HR: T319 registered members from 25 different Moreover, it is consulted on the generation of J. Hanlon [email protected] countries. They are all involved in experimental, the ISAC schedule. Another committee is the theoretical or engineering development projects ISAC Operation Review Committee, where Education Outreach: M.M. Pavan [email protected] at TRIUMF, or at international offsite projects recommendations are made towards optimizing which have a strong TRIUMF component. the scientific output of ISAC. This committee Finance: Each year this group elects the TRIUMF Users’ meets during the scheduled running periods on a S. Reeve fi [email protected] Executive Group, TUEC, to manage the day- quarterly basis. Progress has been made in both Student Program: to-day affairs of the group and organize group committees. For example, an advertisement to D. Giasson [email protected] meetings. Another function of TUEC is to hire a senior accelerator physicist just went out, provide liaison between users and TRIUMF who will provide much needed help for the day- TRIUMF is funded by a contribution management. Currently TUEC has the following to-day operation. However, certain areas still through the National Research membership: require improvements. Council of Canada. As the 2005-2010 budget for TRIUMF Operated as a joint venture by: Chair: Jens Dilling TRIUMF is higher than the previous budget, but still University of Alberta Chair Elect: Paul Garrett U. Guelph significantly below what was asked for in the University of British Columbia Past Chair: Jeff Sonier SFU proposal, decision have to be made as to how Pierre Bricault TRIUMF the money will be spent. TRIUMF management Alison Laird U. York, UK has taken various steps but has also asked for input from the users. Gerald Gwinner U. Manitoba Mina Nozar TRIUMF Please feel free to provide TUEC with some Associate Members: Fred Sarazin Colorado School of Mines feedback on the above topics. • Jens Dilling The ISAC facility is now in its seventh year TUEC Chair McMaster University Université de Montréal of successful operation, but for many aspects Queens University routine operation has not been achieved. While To join TUG or contact TUEC members, please visit the University of Regina for some procedures this will undoubtedly TRIUMF Users’ Group website at: Saint Mary’s University happen, some procedures will continue to http://www.triumf.ca/tug/ be unpredictable. On the one hand this is due to the fact that ISAC is pioneering new beam TRIUMF Beam Schedule The TRIUMF Newsletter is published bi- production methods or is operating in a power annually, and is available online at: regime on their own, and on the other hand it is The current TRIUMF beam schedule is www.triumf.info/public/news/newsletters.php ISAC’s mandate to provide beams that nobody available on the Web at: If you wish to subscribe to this newsletter in else has or can. Therefore it sometimes happens https://admin.triumf.ca/docs/eec/ electronic or printed form, or wish to change that changes are necessary. The flexible and your subscription options, please visit: Users should subscribe to the automated update cooperative response of TRIUMF and the users http://www.triumf.info/subscriptions notifi cation to receive notice of changes which may is clearly the recipe for success at ISAC. be required during the period already scheduled. Send any Newsletter queries or comments to: Among other things, TUEC is presently [email protected] Design/layout by D. Giasson involved in various aspects of the ISAC

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