Design report for an indirectly cooled 3-m diameter superconducting solenoid for the Fermilab Collider Detector Facility

Technical Report · Fri Oct 01 04:00:00 EDT 1982

DOI:https://doi.org/10.2172/6331752· OSTI ID:6331752

Fast, R; Grimson, J; Kephart, R

The Fermilab Collider Detector Facility (CDF) is a large detector system designed to study anti pp collisions at very high center of mass energies. The central detector for the CDF shown employs a large axial magnetic field volume instrumented with a central tracking chamber composed of multiple layers of cylindrical drift chambers and a pair of intermediate tracking chambers. The purpose of this system is to determine the trajectories, sign of electric charge, and momenta of charged particles produced with polar angles between 10 and 170 degrees. The magnetic field volume required for tracking is approximately 3.5 m long an 3 m in diameter. To provide the desired ..delta..p/sub T/p/sub T/ less than or equal to 1.5% at 50 GeV/c using drift chambers with approx. 200..mu.. resolution the field inside this volume should be 1.5 T. The field should be as uniform as is practical to simplify both track finding and the reconstruction of particle trajectories with the drift chambers. Such a field can be produced by a cylindrical current sheet solenoid with a uniform current density of 1.2 x 10/sup 6/ A/m (1200 A/mm) surrounded by an iron return yoke. For practical coils and return yokes, both central electromagnetic and central hadronic calorimetry must be located outside the coil of the magnet. This geometry requires that the coil and the cryostat be thin both in physical thickness and in radiation and absorption lengths. This dual requirement of high linear current density and minimal coil thickness can only be satisfied using superconducting technology. In this report we describe the design for an indirectly cooled superconducting solenoid to meet the requirements of the Fermilab CDF. The components of the magnet system are discussed in the following chapters, with a summary of parameters listed in Appendix A.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (USA)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 6331752
• Report Number(s): FERMILAB/TM-1135; ON: DE83001836
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
BARYON-BARYON INTERACTIONS
BEAMS
COLLIDING BEAMS
CONSTRUCTION
CONTROL EQUIPMENT
CONTROL SYSTEMS
COOLING SYSTEMS
CRYOSTATS
CYCLIC ACCELERATORS
DRIFT CHAMBERS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
FERMILAB ACCELERATOR
HADRON-HADRON INTERACTIONS
INTERACTIONS
MAGNETIC FIELDS
MAGNETS
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PERFORMANCE TESTING
POWER SUPPLIES
PROPORTIONAL COUNTERS
PROTON-ANTIPROTON INTERACTIONS
RADIATION DETECTORS
SOLENOIDS
SPECIFICATIONS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SYNCHROTRONS
TESTING
THERMOSTATS