Passive radiation shield

Abstract

The Radiation shield comprises one or more passive elements. A material having a high internal electric field is used to intensify the shielding effect. The material internal electric field generates a force that slows and/or diverts the incoming particle. The charged particle transfers kinetic energy into the shielding material. The charged particle slows down/diverts away from the protected direction. The incoming particle also interacts with the material transferring energy through traditional interactions. The path of the particle within the protective material can be lengthen. The shield can be combined with other passive shields that would maximize the electric deceleration effect and absorbs energy from the incoming particle. The shield can take different shapes, textures and colors, can also be included into other materials and its material be used for dual purposes.

Claims

1. A shielding system that comprises at least one layer containing or formed by a polarized dielectric material that posses an electric field that will divert or slow incoming charged particles providing an enhanced passive shielding against ionizing and non ionizing radiation by means of interactions between the incoming radiation and the electric field.

2. The system in claim 1 wherein it is combined with one or more layers of non polarized dielectric material to create a composite.

3. The system in claim 1, wherein it is combined with conductive material to create a composite.

4. The system in claim 2, wherein it is combined with conductive material to create a composite.

5. The system claim in 3 wherein the conductive material is used to repolarise the enhanced material.

6. The system claim in 4 wherein the conductive material is used to repolarise the enhanced material.

7. The system claim in 3 wherein the conductive material is used to eliminate accumulated charges in the material.

8. The system claim in 4 wherein the conductive material is used to eliminate accumulated charges in the material.

9. The system in claim 1 where the material can be polarised in different directions to provide protection against positive or negative charge particles.

10. The system in claim 2 where the material can be polarised in different directions to provide protection against positive or negative charge particles.

11. The system in claim 3 where the material can be polarised in different directions to provide protection against positive or negative charge particles.

12. The system in claim 4 where the material can be polarised in different directions to provide protection against positive or negative charge particles.

13. The system in any one of claims 1-12 wherein said system is to be a constitutive part of a larger shielding system.

Description

EXAMPLE

(1) Protection against incoming radiation directed towards the target. The protection is placed with the electric field parallel to the path of the incoming radiation, therefore no deflection effect is to be considered. No radiation reduction due collisions is considered. The effect of the graphite shielding is not considered. The materials mentioned in this example are among a wide variety of possibilities and are chosen to exemplify the idea.

(2) Layer type 1: Partially Polarized Polymer PVDF, thickness 0.5 mm. Average Internal Electric field 50 kV/mm. Density 1.8 gr/cm3.

(3) Layer type 2: conductive graphite connected to ground, thickness 0.05 mm Density 2.09 gr/cm3

(4) Total Number of pair (layer1, layer2) stack over each other: 100,

(5) Total thickness of polarized material=50 mm,

(6) Total thickness of the protection=55 mm.

(7) Electric force effect:
(Force on the particle)=(particle charge)*(Electric field)=(particle mass)*(particle acceleration.)

(8) IE: Source of Radiation, Galactic Cosmic ray, Nitrogen nuclei: .sup.7.sub.14N.sup.7+ Electric charge: 1.1214 E-18 Coulomb, mass: 2.326 E-26 kg, Electric Field: 5 E7 V/m Force: 1.1214 E-18 Coulomb*5E7 V/m=5.067 E-11N Work done by electric force=energy reduction of particle: 2.8035 E-12 Joule=17.5 MeV

BRIEF DESCRIPTION OF THE DRAWINGS

(9) FIG. 1. Radiation particles moving towards the basic shielding unit.

(10) FIG. 2a. Trajectory in the material, the force acting is stopping the particle.

(11) FIG. 2b. Shield configuration for protection against negatively charged particles.

(12) FIG. 3. Multiple Layers Configuration. Separating Layer(s) shown.

(13) FIG. 4. Re-polarization of the material using the conducting layers.

(14) FIG. 5. Receptacle with protected internal space.

(15) FIG. 6. Composite material form by a matrix containing polarized particles.

(16) FIG. 7. Deflecting shield configuration.