Electrical characteristics of long strings of SSC superconducting dipoles
- Los Alamos National Lab., NM (United States)
- Superconducting Super Collider Lab., Dallas, TX (United States)
Because long strings of series-connected superconducting magnets have no dc resistance and low ac losses, the string behaves like a shorted transmission line. The string is thus resonant at multiple half-wavelengths unless damped by the inclusion of resistors that couple to the LdI/dt voltage across the magnet inductance. Based on the measured ac characteristics of individual magnets, it is possible to predict the electrical properties of long strings of magnets for a variety of damping resistors. These strings can be simulated using an analytic representation in FORTRAN (using complex-number notation) or a discrete-component equivalent-circuit modelling program (e.g., SPICE). Various electrical parameters, including characteristic impedance, signal velocity, induced power-supply ripple current, attenuation lengths, and driving-point impedances, can be predicted, and the damping resistor value can be optimized. Comparisons will be made to measurements on a long string of superconducting Tevatron magnets, and some predictions will be made for the SSC collider magnet system.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10167045
- Report Number(s):
- LA-UR-92-2180; CONF-920706-9; ON: DE92018887
- Resource Relation:
- Conference: International conference on high energy accelerators,Hamburg (Germany),20-24 Jul 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of ac electrical characteristics of SSC dipole magnets at Brookhaven. [Superconducting Super Collider (SSC)]
Measurement of ac electrical characteristics of SSC dipole magnets at Brookhaven
Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTING SUPER COLLIDER
SUPERCONDUCTING WIRES
ELECTRICAL PROPERTIES
ELECTRIC IMPEDANCE
SUPERCONDUCTING MAGNETS
MAGNETIC DIPOLES
DAMPING
430303
665412
EXPERIMENTAL FACILITIES AND EQUIPMENT
SUPERCONDUCTING DEVICES