Newsgroups: sci.physics.plasma
From news@mo6.rc.tudelft.nl Thu Oct 5 05:29:13 1995
From: koets@dutndo7.tn.tudelft.nl (Erico Koets)
Organization: Delft Univ. of Technology
Subject: 22" Magnet(1 Tesla) + supply available free of charge (repost)

We have a 1 Tesla magnet with power supply and support structure
available free of charge for any institute (manufacturers incl.)
which will do something useful with it. The taker has to arrange
and pay for removal and transport.

The 6 ton magnet was built by Varian (modified version of NMR-magnet;
used here for precision RF-mass spectrometry via cyclotron frequency).
It has 22" diam. poles, ring shaped optically flat pole caps of 22"
outer diam. and 11" inner diam. and a 5" through hole on the axis
perpendicular to the gap. At present the pole gap is 2.2" Shim rings
and current sheets were added to produce a 16" diam. toroidal
volume (>1" * >1") of high homogeneity (1 : >10^5).

The (commercial) power supply (0..160 A, 0..90 V), the (home built)
stabilization amplifiers and the motor-generator local power station
(35 kVA) with switch gear are also available.

This system ran at long term field stabilities of better than 1 : 10^7
and short term stabilities of 1 : 10^11.

In principal each item is also available separately.

Please respond via e-mail only to koets@cpo.tn.tudelft.nl

E. Koets
Charged Particle Optics Group
Appl. Physics Dept.
Delft Univ. of Technology
the Netherlands