James T Volk

Things that I am working on

Ground motion studies for the Tevatron and future accelerators 

and

Permanent Magnet R&D at Fermilab

• To better determine the movement of Tevatron dipoles water levels have been installed.
• A list of ACNET devices can be found here. These are water levels, temperature and humidity sensors.
• As part of R&D for  future accelerators a Hydrostatic water level system has been installed in a dolomite mine near Fermilab and in the MINOS near hall at Fermilab. Both are in the Galena Platteville dolomite. A data base has been setup every month data is added. Currently there are data for MINOS from December 1 2005 through February 28, 2009 and data from the Lafrage mine from September 1st 2006 until February 28, 2009.
• In January of 2009 I went to Lead South Dakota to help with installation of a HLS in the Homestake gold mine. The mine is flooded and there is a desire to monitor ground motion as the water is removed in preparation for the Deep Underground Science and Engineering Lab (DUSEL). There are pictures of the installation and data available.
• As part of my water level work I have set up a test of several different sensors. Pictures and data are available.

Other interesting Ground motion work

• A summary of Roll measurements in the Tevatron since 2003.
• I am also working with the Surface Transportation Board to gather data on the effects of the EJ&E railroad that is along the eastern boarder of Fermilab. Data, presentations and meetings minutes are all available.

Talks and papers on Ground motion

• I will be attending the International Workshop on Accelerator Alignment (IWAA-10) in Tsukuba Japan I will present a paper with recent data on ground motion at Fermilab.
• The second week of December 2008 I will be at CERN giving two seminars, one on permanent magnets the other on ground motion studies at Fermilab
• On April 3 and 4 2009 there was a workshop at CERN on HLS and WPS systems I gave a talk on the Fermilab work .
• At the end of April 2009 I will go to Brazil to present two seminars on permanent magntes and ground motion work at Fermilab similar to the CERN talks.

• ---

• Models of radiation damage magnets for ILC test
• Quadrupole magnets for NLC
  • Design of adjustable quadrupole magnets
  • How the quadrupoles are measured
  • A useful list of papers on radiation damage in permanent magnets
  • My summary of Radiation Damage Papers
   
   
• Various magnets for the Very Large Hadron Collider VLHC
  • Lambertson 
  • Dipoles
  • Quadrupoles
• Fermilab
  Recycler Magnets
• In particular the measured fields and harmonics of all the
  • Gradient
  • Quadrupole
  • Lambertson
  • Sextupoles
  • Time dependence of permanent magnets
  • Fixed skew quads to correct the Lambertsons
  • Interaction of NUMI extraction line with the Recycler
  • Also various papers on the Recycler
• A Dipole magnet for MiniBoone design and construction

Links that I find useful

• Dexter Magnetics
• Hitachi Metals
• Magnequench (formally UGIMAG)
• Wonder Magnets Cheap magnets for teachers and others
• Magnet Materials Producers Association
• City of Batavia