Large high current density superconducting solenoids for use in high energy physics experiments
Very often the study of high energy physics in colliding beam storage-rings requires a large magnetic field volume in order to detect and analyze charged particles which are created from the collision of two particle beams. Large superconducting solenoids which are greater than 1 meter in diameter are required for this kind of physics. In many cases, interesting physics can be done outside the magnet coil, and this often requires that the amount of material in the magnet coil be minimized. As a result, these solenoids should have high current density (up to 10/sup 9/ A m/sup -2/) superconducting windings. The methods commonly used to stabilize large superconducting magnets cannot be employed because of this need to minimize the amount of material in the coils. A description is given of the Lawrence Berkeley Laboratory program for building and testing prototype solenoid magnets which are designed to operate at coil current densities in excess of 10/sup 9/ A m/sup -2/ with magnetic stored energies which are as high as 1.5 Megajoules per meter of solenoid length. The coils use intrinsically stable multifilament Nb--Ti superconductors. Control of the magnetic field quench is achieved by using a low resistance aluminum bore tube which is inductively coupled to the coil. The inner cryostat is replaced by a tubular cooling system which carries two phase liquid helium. The magnet coil, the cooling tubes, and aluminum bore tube are cast in epoxy to form a single unified magnet and cryogenic system which is about 2 centimeters thick. The results of the magnet coil tests are discussed.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7339377
- Report Number(s):
- LBL-4824; CONF-760508-5; TRN: 76-021237
- Resource Relation:
- Conference: 6. ICED meeting, Grenoble, France, 11 May 1976
- Country of Publication:
- United States
- Language:
- English
Similar Records
The design and construction of a gradient solenoid for the high powered RF cavity experiment for the muon collider
Design report for an indirectly cooled 3-m diameter superconducting solenoid for the Fermilab Collider Detector Facility
Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM ANALYZERS
SUPERCONDUCTING MAGNETS
RADIATION DETECTORS
DESIGN
PERFORMANCE TESTING
CONSTRUCTION
CRYOGENICS
CURRENT DENSITY
MATERIALS
QUENCHING
RESEARCH PROGRAMS
SOLENOIDS
STABILIZATION
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
HEAT TREATMENTS
MAGNETS
MEASURING INSTRUMENTS
SUPERCONDUCTING DEVICES
TESTING
430303* - Particle Accelerators- Experimental Facilities & Equipment
420201 - Engineering- Cryogenic Equipment & Devices
440104 - Radiation Instrumentation- High Energy Physics Instrumentation