XHV 2000 Program (preliminary)

Session 1. Monday, June 5, 2000, 8:30 a.m.

XHV Technologies                                 Session Chair: G. Myneni 8:30 a.m.          Paul Redhead, NRC Canada (Invited)   "The quest for extreme high vacuum"

9:15 a.m.          John C. Helmer, Varian                         "Design of ion and molecular drag pumps for XHV"

9:40 a.m.          Gilles Moulard, CERN                           "Hydrogen adsorption and desorption measurements
                                                                                       on various technical surfaces at cryogenic
                                                                                       temperatures"

10:00 a.m.       Coffee Break

10:30 a.m.         Cristoforo Benvenuti, CERN (Invited)    "Extreme vacuum measurements at CERN"

11:15 a.m.         Yulin Li, Cornell                                        "Pumping characteristics of titanium-
                                                                                          based non-evaporable getter pumps"
11:35 a.m.         Discussions

12:30 p.m.        Lunch
 

 Session 2. Monday, June 5, 2000, 2:00 p.m. Surface Conditioning Session Chair:  J. O’Hanlon
  2:00 p.m.            Yuichi Ishikawa, Hitachi (Invited)           "Outgassing and surfaces of some UHV materials"

2:45 p.m.            Conrad Forester, BNL                           "Measurements of photon simulated desorption from

                                                                                vacuum chamber construction materials used for
                                                                                storage ring accelerators and synchrotron light
                                                                                sources"
  3:25 p.m.             Fred Dylla, JLab                                     "Surface conditioning for XHV"

3:45 p.m.           Tea Break

4:00 p.m.             Rainer Weiss, MIT (Invited)                    "LIGO beam tubes: vacuum performance,
                                                                                            measurements and tricks"

4:40 p.m.             Vincenc Nemanic, ISEO, Slovenia            "Kinetics of hydrogen evolution from stainless
                                                                                           steel - a new possible concept of EXV system
                                                                                           design"

5:00 p.m.             Discussions

                               6:00 Dinner – Cook-out, JLab Atrium/Deck
 
 

Session 3. Tuesday, June 6, 8:30 a.m.

XHV Measurements                                         Session Chair: P. Redhead
  8:30                     Pat Looney, NIST (Invited)                    "An overview of XHV measurement techniques"

9:15 a.m.             Fumio Watanabe, Sukegawa Electric, Japan (Invited)
                                                                                          "Remaining issues in XHV measurement at
                                                                                          Y2K – neutral ESD and outgassing"

10:00                 Coffee Break

10:30 a.m.           Marxen Larin, Vacuum & Cryogenic Systems Co
                                                                                           "Achieving and maintaining extreme high vacuum"

10:50 a.m.           Ganapati Myneni, JLab                            "XHV instrumentation activities at the Jefferson
                                                                                            Lab"

11:25                   Discussions

12:30 p.m.          Lunch

 Session 4. Tuesday, June 6, 2000, 2:00 p.m. Poster Session (L102-104)                     Session Chair: P. Kneisel
  2:00 p.m.             Changkun Dong, Old Dominion University    "Ion pump backed turbo pumps for XHV
                                                                                                application"

                            Reese Puckett, Pfeiffer Vacuum                "A simple UHV/XHV system with extreme
                                                                                                sensitivity leak detection and cross
                                                                                                calibration capability"

                                                          Paul Holloway, University of Florida            "Interaction between residual vacuum gases and
                                                                                                                             cathodoluminescent phosphors"                             (other contributions - TBD after May 5)

3:00-4:30 p.m.       Jefferson Lab Tour
 

 Exhibits - Atrium                                                         6:00 p.m. Workshop Dinner, Mariners Museum

Session 5. (Wednesday, June 7, 2000)

XHV Applications                             Session Chair: P. Holloway
  8:30 a.m.                 Charles Sinclair, JLab (Invited)                "The performance of photoemission
                                                                                                electron sources in XHV environments"

9:15 a.m.                 A.S. Terekhov, Inst. Of Semiconductor Physics, Novosibirsk
                                                                                                "GaAs-Photocathode stability in extreme high
                                                                                                vacuum"

9:40 a.m.                 Paul Rutt, JLab                                          "XHV vacuum system criteria for long
                                                                                                 operational lifetime high current
                                                                                                 photoemission sources"

10:00 a.m.             Coffee Break

10:30 a.m.               Bruce Gnade, Univ. of NorhTexas (Invited) "Vacuum effects on field emitters"

11:15 a.m.               Changkun Dong, Old Dominion University    "The effect of adsorbents on the
                                                                                                   performance of field emitters"

11:40 a.m.                Wrap-up Discussion