May 19-22, 2008

EDM Collaboration Meeting at Duke University

Attendance:  Mohammad Ahmed (Duke), Ricardo Alarcon (Arizona State), Larry Bartoszek (Bartoszek Engineering/Illinois), Doug Beck (Illinois), Betsy Beise (Maryland),Jan Boissevain (Caltech), Matthew Busch (Duke), Vince Cianciolo (ORNL), Steve Clayton (Illinois), Martin Cooper (LANL), Chris Crawford (Kentucky), Karen Dow (MIT), Brad Filippone (Caltech), Haiyan Gao (Duke), Bob Golub (NCSU), Chris Gould (NCSU), David Haase(NCSU), Mike Hayden (Simon Fraser), Paul Huffman (NCSU), Ernie Ihloff (MIT), Takeyasu Ito (LANL), Maciej Karcz (Indiana), David Kendellen (NCSU), Ameja Kolarkar (Boston U), Ekaterina Korobkina (NCSU), Wolfgang Korsch (Kentucky), Tom Langford (Maryland), Chen-Yu Liu (Indiana), Josh Long (Indiana), Michael Mendenhall (Caltech), James Miller (Boston U), Byung (Andrew) Park (Berkeley), Brad Plaster (Caltech/Kentucky), John Ramsey (LANL), Lee Roberts (Boston U), George Seidel (Brown), Walt Sondheim (LANL), Chris Swank (NCSU), Shigeyuki Tajima (LANL), Christopher Vidal (MIT), Steve Williamson (Illinois), Quiang (Alan) Ye (Duke), Jacob Yoder (Illinois), Wangzhi Zheng (Duke), Xiaofeng Zhu (Duke)

 

Subsystem managers’ meeting (Martin Cooper/Kim Selvage)

         1) The reworked WBS

         2) Discussion of interface issues

         3) Preparing for CD-2

3He services/central detector system joint meeting (Steve Williamson/Takeyasu Ito)

3He services meeting (Steve Williamson)

Central detector subsystem meeting (Takeyasu Ito)

 

Welcome (Dan Gauthier, Physics Department Chair and Calvin Howell, TUNL Director)

 

Collaboration Business (Martin Cooper)

      a) Changes at LANL

      b) Highlights of the reworked WBS

      c) Budgetary information

      d) An August agency review?

      e) Preliminary engineering review

      f) The next collaboration meeting

 

R&D Deliverables

3He transport calculations – the standard model (Chris Swank and George Seidel)

Heat flush measurements and measuring dilute 3He concentrations and written version (Steve Lamoreaux)

4He Evaporative Purification (David Haase)

3He relaxation time (Alan (Qiang) Ye)

3He relaxation time (Jacob Yoder)

Relaxation time analysis and written version (Mike Hayden)

3He injection (Xiaofeng Zhu)

Progress report on the dual use cryostat (Shigeyuki Tajima)

High voltage stability and pressurization (Maciej Karcz)

Measurements of the photoelectron statistics (Takeyasu Ito)

Valve progress (Steve Williamson)

Optical properties of measurement cell material (Byung Park)

 

Engineering

Dilution refrigerator and liquefier options (David Haase)

Main cryostat heat shields (Ernie Ihloff)

Pressure-vessel safety calculations (Takeyasu Ito)

Conventional magnetic shield (Jan Boissevain)

FnPB-UCN building update and infrastructure (Walt Sondheim)

Central detector region (John Ramsey)

3He injection (Matthew Busch)

 

Design Optimization

Depolarization in gradient magnetic fields (Steve Clayton)

Length of the measurement cell (Bob Golub)

SQUID placement (Justin Torgerson)

SQUID performance in a HV environment (Chen-Yu Liu)

Magnet development (Brad Plaster)

Central cell simulations A and B (Jim Miller)

Focusing neutrons into the measurement cell (Wolgang Korsch)

                          

CD-2 Deliverable

Specifications for the integrated tests, a second encore (Paul Huffman)

 

Preliminary engineering meeting for the long-lead time items (David Haase)