The radiation sites are the most hazardous and can cause unforeseen problems in case the gases mix with the outside atmosphere. In order to block the flow of radiations in the outside environment, the radiation shields in the form of blankets made of lead, as also sometimes tungsten, play a vital role. The blankets can be manufactured as per the configuration required.
Portable high utility radiation shielding blanket
The portable nature of the lead wool blankets make it the best fit for the enclosed areas of radiation. The percentage of shield from gamma, beta energies required can be the best ways to select the blankets. The toughness of the blankets also is complemented with flexibility as these can be rolled in various layers around a pipe, hung on walls, etc. The testing machines are available to test the grommet strength and tensile force to avoid any kind of failures during the process. Breaking with the help of jaws is the best test for the grommets on it. Even filter hosing can be covered with this amazing radiation shielding equipment of high utility. The best part is the weight and the grommets makes the blankets very easy to use as the need for the wires or straps do not arise while installing it.
The expert designing techniques
The lead plates or lead wool are the main components of lead wool blankets. The blankets are less solid than the lead plates themselves, hence light weight and with multi-purpose uses. The lead strands from .005 to .015 inches of diameter and also of different sizes are used in the manufacture as per requirement. The most basic grounds of protection lies in the double encapsulations of this blanket; with the inner covering being lighter than the outer covering. The two coverings prevent any contamination of lead due to cut or wear and tear.
The material used for the coverings are sewn in quilted pattern and have heat sealed seams. These can be either vinyl laminate which are available in yellow or white. The other options being the silicon fibreglass fabric or the urethane laminated nylon. The hanging facilitation is complete with the perforations and eyelets to facilitate ease in hanging and placement at the nuclear sites. The size, spacing of the grommets can be changed or ordered as per requirement from the blanket providers.
The grommets provide good stability to the lead wool inside from moving when hung or draped on nuclear equipment. The colour is gray and this is suggestive of its resistance to high temperatures. The dose rate reduction of the harmful chemicals is directly correlated to the thickness of the blanket and the lead plate and also its density. For example lead wool of 20 lbs/ sq. feet and approximately three fourth inch thickness of blanket and one fourth inch thickness of lead sheet can help a dose reduction of around a huge 31%. The shapes range from rectangular to tapered varieties. The Federal specification of QQC-40 Type 2 Grade C is normally used in nuclear sites of U.S.A.