NDLI: Pulsed taut-wire measurement of the magnetic alignment of the ITS induction cells

Content Provider	IEEE Xplore Digital Library
Author	Melton, J.G. Burns, M.J. Honaberger, D.J.
Copyright Year	1993
Description	Author affiliation: Los Alamos Nat. Lab., NM, USA (Melton, J.G.; Burns, M.J.; Honaberger, D.J.)
Abstract	The mechanical and magnetic alignment of the first eight induction-cell, solenoid magnets of the Integrated Test Stand (ITS) for the Dual-Axis Radiographic Hydrodynamic Test (DARHT) facility were measured by observing the deflection of a fine, taut wire carrying a pulsed current. To achieve the required alignment (less than 0.25 mm offset and less than 5 mrad tilt), the magnet design uses quadrufilar windings and iron field-smoothing rings. After detailed measurements of each solenoid magnet, the cells are assembled and then mechanically aligned using a laser and an alignment target moved along the cell centerline. After the cells are in final position, the pulsed wire method is used to verify the magnetic alignment. The measurements show an average offset of the magnetic axes from the mechanical axis of 0.15 mm, with a maximum offset of 0.3 mm. The average tilt of the magnetic axes was 0.7 mrad with a maximum tilt of 1.4 mrad. Tilts are corrected to less than 0.3 mrad, using dipole trim magnets assembled into each cell. Correction is limited by power supply resolution and by background noise.
Starting Page	2944
Ending Page	2946
File Size	334433
Page Count	3
File Format	PDF
ISBN	0780312031
DOI	10.1109/PAC.1993.309514
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-05-17
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse measurements Magnets Magnetic field measurement Mechanical variables measurement Solenoids Testing Wire Assembly Radiography Hydrodynamics
Content Type	Text
Resource Type	Article

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