First, I add my voice to the welcome extended by Paul Schmor. What- ever is your field of expertise within particle-accelerator science and en- gineering, I know that PAC09 will offer you a first rate scientific program. The US PAC provides exhaustive coverage of accelerator topics from ion sources to target stations (and all points between) and from complet- ed facilities to futuristic concepts. With 117 invited orals, 84 contributed orals, and 1710 posters in the span of 5 days, there is a surfeit of riches from which to choose. The flipside is that the PAC can be overwhelming. To increase your satisfaction, the program has been adjusted e.g. there are fewer orals than at PAC07. Every day, a.m. and p.m., there is a half hour free of conflict between orals and posters. Within the main classifi- cations, orals and posters are scheduled on different days; and heavily subscribed classifications have their posters spread over two days so that you have a better chance of getting to posters within your own field. Another adjustment is a scaling of total hours given to a classification according to the contributions at the previous conference, PAC07, while keeping the conference “forward looking”. For example, the increase giv- en to ACCTECH shows the value attached to accelerator engineering.
We continue the tradition begun at EPAC06 and fostered at PAC07 of a student poster session (Sunday 3rd May, starting at 4:00 pm) that provides an opportunity for students to share their work with active pro- fessionals in the field. The quality of student work is high, and I trust you will make time to stop by. Despite recent economic woes, we have a strong showing from the industrial exhibitors who are ceaselessly innova- tive and continue to support the PAC through sponsorships. The oral pro- gram has a counterpart to the exhibits: Thursday a.m. features agency perspectives on environmental and security applications of accelerators. With many projects anticipated or under construction, scientists are often entrusted with project management without formal training; so I hope you will take the opportunity, Thur. am, to hear from true practitioners of this art. In addition to focused satellite meetings (see page 29) there is a special session on accelerators in Asia, also Thursday a.m. And on Sat- urday, during the TRIUMF tour, you will see what TRIUMF does when not hosting an international conference. Since PAC97, also in Vancouver, we have become much more than a cyclotron laboratory.
Finally, I wish to mention process, and thank my scientific program com mittee (SPC). How talks are selected can be mysterious, so let me explain. The ≈ 70 member SPC meets twice, face to face. At the first meeting, >1 year in advance of PAC, the SPC chooses invited orals from hundreds proposed by SPC members on behalf of their labs and regions. Foremost in the selection criteria is scientific merit and interest to the meeting; followed by “re- gional balance”. At the second meeting, 3 months before PAC, the SPC selects contributed orals. Every submitted abstract is considered! PAC09 received 2043 abstracts; and the SPC must be thanked for the time spent evaluating them, and congratulated for the quality of the program de- livered to you. I add my personal thanks: the en- thusiasm and spirit of cooperation shown by the SPC members made my task as chairman easy and enjoyable. Shane Koscielniak Scientific Program, Committee Chair
Vancouver BC, May 4 - 8