A radiation protection material (10) is arranged between at least two layers (21, 22) of at least one plastic-containing element in order to produce a radiation protection element. At least part of the gas present between the at least two layers (21, 22) is removed. The at least two layers (21, 22) are connected with each other.

A radiation shielding material that is lighter and has lower installation restrictions than conventional methods, and that exhibits excellent shielding efficiency against radiation in the high energy region. The radiation shielding material comprises a complex containing a fibrous nanocarbon material, a primary radiation shielding particle, and a binder, wherein the fibrous nanocarbon material and the primary radiation shielding particle are dispersed in the binder.

A radiation shielding material includes a main body having communication air holes and made of a base member constituting a three-dimensional reticulate skeletal structure, and a metal having radiation shielding capability. The radiation shielding material has moisture permeability through the communication air holes. The base member contains fibers, a foam material, a porous material, or a spongy material. The metal is provided in the form of a film so as to cover the surfaces of the base member of the main body. The radiation shielding material has a degree of moisture permeability of 1 g/m.sup.2 h or higher measured through the A-2 method that is a water method in accordance with JIS L 1099 where the temperature is modified to 20° C. and the humidity is modified to 65% RH.

Radiation shield and methods for manufacturing a radiation shield are provided herein, the method includes identifying a substrate for the radiation shield; identifying at least one material for cold spraying on the substrate; applying by cold spray a coating of the at least one material on the substrate thereby obtaining a radiation shield. The radiation shield is lighter, thinner, and more efficient compared to conventional radiation shields.

A computational method for development of radiation shielding compositions, as described herein, can include selecting at least one polymer and at least one metal for each of a plurality of radiation shielding compositions, selecting a polymer:metal ratio for each composition, performing computational analysis to calculate an attenuation coefficient associated with a given radiation dose for each composition, identifying a best candidate composition for radiation shielding based on the calculated attenuation coefficients, and preparing a radiation shielding material including the at least one polymer, the at least one metal, and the polymer metal ratio associated with the best candidate composition.

A radiation barrier provides adjustable protection against radiation incident from multiple directions simultaneously. First and second radiation shields are pivotally retained by an axis post to form a radiation shield assembly. Each radiation shield is formed from radiation shielding material with a lead equivalence. The radiation shields have a closed configuration where the shields are disposed in a nesting relationship to a single side of the axis post with the first radiation shield disposed interior to the second radiation shield. The first radiation shield pivots in a plane laterally displaced from the center axis of the axis post by a distance D.sub.1 while the second radiation shield pivots in a plane laterally displaced from the center axis by a greater distance D.sub.2. Notches can be disposed in the proximal end portion of the first radiation shield to permit mounting brackets of the second radiation shield to be received therethrough.

[Object] To provide a radiation shielding material that includes a resin composition obtained by filling a matrix formed of resin with a radiation-absorbing substance and is capable of obtaining a structure in which transparency is significantly improved as compared with the conventional radiation shielding material while having a radiation shielding effect similar to that of the conventional radiation shielding material.

[Solving Means] A radiation shielding material includes: a resin composition containing a proportion of 20 to 80 vol % of fluoride powder containing barium as a constituent element. The fluoride powder is favorably barium fluoride or lithium barium fluoride, the resin favorably has a refractive index (n) of 1.4 to 1.6, and particularly, a difference between a refractive index of the resin and a refractive index of the fluoride powder is favorably within ±0.05.

A portable XRF analyzer includes a hand shield to substantially block x-rays from impinging on a hand of a user. The portable XRF analyzer includes a heat sink over an x-ray source and a heat sink over an x-ray detector. The heat sinks are separated from each other by a thermally insulative material.

According to an embodiment, a radiation-scintillated shield which attenuates an incident radiation, includes a shielding part containing an activator-added gadolinium compound as an aggregate. The activator uses the gadolinium compound as a base material and emits light when struck by the radiation. Consequently, it becomes possible to shield a γ-ray and a neutron with a thickness which is about the same as that of a conventional concrete shield of γ-ray shield, and to confirm leakage of radiation.

A tungsten sheet includes a tungsten layer. The tungsten layer includes a binder resin and a plurality of tungsten particles included in the binder resin. A tungsten composition amount of the tungsten layer is at least 70% by mass (wt %). An average particle diameter of the plurality of tungsten particles is more than 1 μm and less than 15 μm.