RADIATION PROTECTION & SHIELDING MATERIALS

Radiation is a form of energy or mass being emitted by an object. The most common forms of radiation that people are familiar with are Electromagnetic (EM) radiation and particle radiation.

EM includes radio waves, microwaves, infrared, visible light, UV, xrays, and gamma rays.

If a photon in the UV to gamma range strikes an atom, it has the energy to ionize it. Ionized atoms basically change chemical state, for example ionized O2 may become two separated O- atoms, or Oxygen radicals. Ionizing radiation at certain levels can damage cells in your body in a way that is known to lead to things like cancer.

Particle radiation refers to extremely small high speed objects that are emitted from nuclear reactions. Common types of particles in order of penetrating power include alpha (helium nuclei), beta, proton, and neutron radiation. Alpha particles can be effectively shielded by thin clothing and are not in general a danger to humans. Beta and proton radiation are both charged, so conductive shielding does a good job of stopping them, although protons have higher penetrating power due to their higher mass. Neutrons are difficult to shield because they are not charged. Neutrons encountering thick layers of lead will slow down or thermalize, but will penetrate much thicker layers than protons or betas. Neutrons can also activate materials they strike, with lead being a notable exception (very little activation occurs compared to other metals).

NEUTRON-BLOCKERS(Patent pending)

Neutron Blocker

Neutron blocker high density borated polyethylene polimer, supplied by Modedoor®, is a lightweight, cost-effective neutron shielding materiel to attenuate and absorb neutron radiation. Our borated polyethylene polimer contains 5-7% boron content (by weight). We also offer low density polyethylene (LDPE) with no boron content. Used in the medical, nuclear, and industrial marketplaces borated polyethylene polimers ideal for medical vaults and doors, particle accelerators, hot cells, nuclear storage and transport containers, and nuclear detection systems.

For easy installation, Modedoor’s borated high density polyethylene polimer(MHDPE) comes in a standard sheet size of 50 x 50 x 4,5,10,cm thick. or interlocking bricks at sizes 20x40x5,10 cm.You can easily cut this polymer material using standard woodworking tools. Also we can make special sizes.

Features

Available in 5% boron content (by weight) or low density polyethylene polimer with no boron content
Durable over a wide temperature range
Easy to install and fabricate
Consistent density and homogeneity