Study of passive and active protection system for the SSC (Superconducting Super Collider) R D dipole magnet

Technical Report · Fri Jun 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6515936· OSTI ID:6515936

Lopez, G; Snitchler, G

A comparative study of Passive versus Active Protection Systems is made using the computer programs SSC*, designed especially for this proposal. These programs track the quench evolution of each conductor independently, the axial quench velocity is given by a modified expression which correctly fits the experimental data, the phenomenological turn-to-turn transversal quench propagation is considered as an input parameter of the programs. The results of the simulations for a 40 mm dipole indicate that a single dipole is widely self-protected, which suggests that a Cold Diode Passive Protection System is a safe method to protect the magnet (no heaters are needed), and also that two or three magnets (Conceptual Design) will be a safe Active Protection System is the heater-time-delay to cause other quenching is sufficiently brief ({tau}{sub h} < 50 ms). Assuming the same turn-to-turn quench propagation for the 50 mm SSC R D Dipole Magnet, the predictions for this magnet will have much lower axial quench velocity and the above results will be still valid for this new magnet. 10 refs., 30 figs.

• Research Organization: Superconducting Super Collider Lab., Dallas, TX (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC02-89ER40486
• OSTI ID: 6515936
• Report Number(s): SSCL-283; ON: DE91002541
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities &amp; Equipment
COMPUTER ARCHITECTURE
DETECTION
DIPOLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETIC DIPOLES
MAGNETS
MULTIPOLES
QUENCHING
SAFETY
STORAGE RINGS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING SUPER COLLIDER
TEMPERATURE EFFECTS
TEMPERATURE MEASUREMENT