PowerPedia:Magnetic Shielding Mechanism
From PESWiki
Magnetic Shielding Mechanism are usually a dense material having the properties of interact with magnet, which has the ability to produce a force via iron, steel, nickel, electret copper, niobium titanium, and chrome, and reduces the passage of radiant energy or radioactive materials to the surroundings by absorbing.
Device consisting of a piece of machinery provides a protective barrier. The high voltage electrostatic arrester mu-metal rings form magnetic shields elements in acceleration tube. Plasmas can be classified as electromagnetic or electrostatic according to whether or not there is an oscillating magnetic field.
Under high voltage longitudinal plasma and other high density electrostatic force interact with the Magnetic Shielding Mechanism which forms a "vapor shield" by ablation of wall materials, such as in plasma-drives. Longitudinal electrostatic plane waves, defined as
are found in resonators and other cavities. Magnetic Shielding Mechanism between cavity segments shield the electrons being accelerated from stray static and dynamic magnetic fields. The incoming radiant energy causes surface erosion, but decreasing of the turbulent energy transport through the vapor shield brings down the erosion.
Some Magnetic Shielding Mechanisms form superconducting areas the extends on either side of focus in a magnet coil, in addition with tubular shield materials, surrounding the points. The shield of the joint a distance equal to the inside diameter of the shield. Magnetic Shielding Mechanisms superconductor shields produces a field anomaly that influences the homogeneity of the imaging volume and an acceptable disturbance in the imaging volume while at the same time providing an ambient field condition that allows the superconductive focus to have a sufficiently low resistance to minimize superconducting current capacity degradation.
Papers
- Gilligan, J.G. Bourham, M.A. Hankins, O.E. Eddy, W.H., " Magnetic vapor shielding mechanism in electromagnetic and electrothermal launchers"
- Hoburg, J.F., Principles of quasistatic magnetic shielding with cylindrical and spherical shields
- Bottauscio, O., and M. Chiampi, P.E. Roccato, M. Zucca, 1–100 kHz Magnetic Shielding Efficiency by Metallic Sheets: Modeling and Experiment by a Laboratory Test Bed
Patents
- Low charge density applications
- Insert for dampening acoustic vibration and shielding magnetic flux for use in a disc drive, U.S. Patent 6411463 (http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6411463) (G.patent (http://www.google.com/patents?q=6411463); PDF (http://www.pat2pdf.org/pat2pdf/foo.pl?number=6411463)), Filed Jul 20, 2000 (Seagate Technology LLC)
- X-ray producing device with reduced shielding, U.S. Patent 7140771 (http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7140771) (G.patent (http://www.google.com/patents?q=7140771); PDF (http://www.pat2pdf.org/pat2pdf/foo.pl?number=7140771)), Filed Sep 22, 2004
- High charge density applications
- Ion-stablized electron induction acceleration, U.S. Patent 2929951 (http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=2929951) (G.patent (http://www.google.com/patents?q=2929951); PDF (http://www.pat2pdf.org/pat2pdf/foo.pl?number=2929951)), Filed Apr 28, 1958 (The United States of America)
- Magnetically shielded high voltage electron accelerator, U.S. Patent 5463268 (http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5463268) (G.patent (http://www.google.com/patents?q=5463268); PDF (http://www.pat2pdf.org/pat2pdf/foo.pl?number=5463268)), Filed May 23, 1994 (National Electrostatics Corp.)
See also
- Materials
- iron, steel, nickel, electret copper, niobium titanium, and chrome
- Fields
- Torsion field, axion field, spin field, spinor field, and microlepton field
