ELECTROMAGNETIC SHIELDING FEASIBILITY STUDY
Abstract
This report discusses the shielding of personnel against charged particles in space using electric or magnetic fields. The energy distribution and other characteristics of charged particles in space are summarized. The operation and stability of an electrostatic shield (two concentric charged conducting spheres) for protection against 1 -Mev electrons and 500-Mev protons is discussed. Shielded regions for charges in a magnetic dipole field are described. A method is given for calculating trajectories of particles incident on a magnetic dipole in a parallel beam, with sample trajectories illustrated. The vector potential of a cylindrical solenoid is used to get the shielded region for L/R = 1.00, R/Cst = 0.40. The mass of conductors and structure of superconducting solenoids are calculated in terms of the geometry and dipole moment. A non-optimum sample design has a magnetic moment 5. 66 x 1012 gauss cm3, radius and length A meters, weighs 417,000 lb, and protects -50 meters3 from 1-Bev protons. A single-turn magnetic shield could be made 1/10 the mass of a comparable passive shield for 1-Bev protons. Structural considerations and preliminary shielded volume studies indicate that further decrease in mass could be obtained using an optimized cylindrical solenoid. Recommendations for future work emphasize further Studies of cylindrical solenoids and other current configurations.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0410540
Entities
People
- Robert F. Tooper
Organizations
- IIT Research Institute