Summary of dipole field angle measurements on 50mm-aperture SSC Collider Dipole Magnet Protoypes
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Fermi National Accelerator Lab., Batavia, IL (United States)
At several stages in the production of the SSC collider dipole magnets and their final installation the magnetic field angle needs to be known. A simple device using a permanent magnet which aligns itself with the magnetic field had been developed at FNAL to survey the direction of the magnetic dipole field with respect to the vertical (as determined by gravity) along the magnet axis. The determination of the dipole field angle was part of the field quality characterization of a series of thirteen full-length 50mm-aperture SSC Collider Dipole Magnet Prototypes which were built for R&D purposes at FNAL. Measurements with the first developed FAP system were performed on a regular basis through several stages of the magnet production process with the intention of fabrication quality control. Part of these included measurements performed before and after cryogenic testing: these data are summarized here. The performance of a second system with an improved probe and data acquisition system was tested on part of the DCA series as well. This paper includes a presentation of time stability, noise and angular resolution data of this second probe. Another alternative instrument to determine the dipole field angle is the ``mole`` rotating coil system developed at BNL used mainly to measure the multipole components of the magnetic field. In the case of magnet DCA320, a comparison is made between the field angle as determined by the mole and those determined by both of the FAPS.
- Research Organization:
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC35-89ER40486
- OSTI ID:
- 10171220
- Report Number(s):
- SSCL-Preprint-316; CONF-930537-80; ON: DE93016887; TRN: 93:017860
- Resource Relation:
- Conference: 5. annual international industrial symposium on the Super Collider and exhibition,San Francisco, CA (United States),6-8 May 1993; Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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