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Neutron Door Lead Building Process Slide Show

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Some high energy linear accelerator installations require a specially constructed steel door with neutron absorbing borated polyethylene and lead for gamma ray absorption. These very heavy doors (3000 to 15,000 lbs) are fabricated to meet the physicist shielding specification. Our doors are configured with brookfield industries, Inc. motorized door operators, special interlock switches and energy absorbing door stops. brookfield heavy duty hinges selected for the weight of the door are standard. Battery backup units that open the door when power fails are available as an option. a-fabco offers standard design units for new construction or can design custom doors for special shielding requirements and for retrofitting to existing openings.

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13" Thick Neutron Door      Standard Neutron Door


      brookfield W-150HD           Concrete 12" Frame


Finished 12" Frame               Lead Brick in Door


 Installed Door with NB-2000 & W-200HD Hinges


 Special 13-1/4" Thick Neutron Door with Shielding Shelf Above - Retrofit