From: Hutch Neilson
Sent: Friday, October 29, 2004 1:13 PM
To: Wayne T. Reiersen; Phil Heitzenroeder; Brad Nelson; Michael R.
Kalish; Mike Zarnstorff
Subject: More from Greifswald

Information on planar coil manufacturers:


*	The best source of info was Dr. Thomas Klinger, head of physics, who built a university-scale linear machine 5 years ago. I saw it and it was beautifully engineered. His coils were built by Bruker Analytic. The losing competitors were also good. These are all near major research labs and are in the business of building magnets for science, so these might be good leads:
	

	*	Bruker Analytic, in Karlsruhe. See www.bruker.de.  Contact is Jurgen Bedau, +49-721-95064-57, very good engineer. Good quality and price. Also built coils for a Q-machine at West Virginia Univ., Morgantown. Reference is Mark.Koepke@mail.wvu.edu. Thomas claims that the WVU guys went to Europe due to dissatisfaction with U.S. suppliers. 
	*	Oswald, a spinoff of the old IPP-Garching coil shop, Miltenberg/Main.  Dr. Thorsen Strasser, +49-9371-97-19-41, or the main number +49-9371-97-19-0. 
	*	Danfysik, Jylinge, Denmark.  e-mail danfysik@danfysik.dk.  Lars Anthon, general mgr., physics.  +45-46-78-81-50. 
	*	Outokumpu Poricopper Oy, P.O. Box 60, FIN-28101, Pori, Finland, +358-2-626-6111.  We know them as a copper supplier, but apparently they also build coils, or maybe used to.
		

*	W7-X vendors (Wanner):  They don’t like Tesla and complain that their Quality guy is always in the U.S., presumably at Everson, whenever they want to talk to him. Noll is OK but expensive and they do engineering but don’t have their own production facilities.  Ansaldo is OK. Antonio Cardella used to work for them and will contact Dr. Laurenti for us.   Wanner said ABB-Augsburg is good but even they are not immune to making stupid mistakes, contact is Anton Jeckle.
	

Other topics:


*	I discussed the problem of locating the current center with Michael Endler, one of their physicists who has been converted to a metrologist.  Situation similar to ours: their baseline is to use mechanical measurements. They will locate “pin pads” which are arrays of reference points in 96 locations around the perimeter of each coil. However, they are mounted on the outer surface of the ground wrap, so they have the same uncertainly as we have in knowing the location of the current center.  Their modular coils are built in industry, introducing another element of uncertainty that we don’t have. They are interested in more information about Strickler’s calculations. Could we ask Dennis to send Endler his recent presentation? 
*	Matthaias Otte is responsible for e-beam measurements and has some pretty results from Wega. He favors the rod technique over the screen- more toroidal transits, easier to deploy and withdraw.  I shamelessly pressed him for ideas on how to do it even cheaper, but the gun, camera, and rod combo was his rock-bottom. It was worth a try.  He said he would send me more information.
	


Hutch