With low nuclear activation, aluminum has a short neutron activated half-life measured in a scale of hours — significant when compared to stainless steel, which is measured in thousands of years. This offers huge disposal savings and a priceless reduction in potential exposure to staff.

Atlas Neutron Window Features

  • Aluminum to stainless explosion welded (EXW) bimetallic construction
  • UHV Rated to 1x10 -13 Torr
  • Long–life 90° included angle knife-edge design developed at CERN
  • 100% Compatible with industry standard Conflat ® interface
  • 1-1/3 to 16 inch Flange Diameters
  • Standard and reduced stainless steel models available
  • Custom window thicknesses
Specifications
Atlas CF Neutron windows are fully compatible with the industry standard Conflat® flange. Atlas uses CERN’s 20° back-bevel knife-edge design with a long-life 90° encompassed angle geometry. Atlas flanges are quality controlled using material batch monitoring processes.

Materials
Body/Weld Interface—Aluminum 6061-T6
Knife-Edge—Stainless Steel 316L
Reduced Stainless Steel Optional
Commercially pure Titanium Optional

Environmental
Vacuum Leak Tested to < 1x10-9 cc/sec of He
Peak Temperature 300°C (During weld-up)
Operational Temperature -200°C to 250°C

Mechanical (EXW Interface)
Tensile—15,000psi
Shear—10,000psi

Atlas Technologies
305 Glen Cove Road
Port Townsend, WA 98368
Phone: 360-385-3123
Fax: 360-379-5220
E-mail: info@AtlasUHV.com
webmaster@AtlasUHV.com

Atlas Technologies Sales Manager Position
Bimetal Solutions for Neutron Research

Neutron Windows with Bimetallic Atlas CF™ Interface

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In neutron applications like the production of radioisotopes for medical imaging, aluminum vessels fitted with our flanges are replacing all stainless steel UHV systems— because residual, neutron induced, radiation in aluminum has a half-life orders of magnitude shorter than that of stainless steel. Our flanges enable aluminum UHV system use in cyclotrons and nuclear reactors.

Atlas Neutron Windows are an integrated Atlas CF flange with 316L sealing surface with an aluminum window—all in one flange body with no welding or connections. Standard windows are made from 6061 T6 aluminum machined to the thickness that you desire. Atlas offers engineering finite element analysis to assure you of the mechanical strength required. Dual neutron windows can offer an internal cavity that can be differential pumped or filled with a gas and analyzed through an array of optical ports mounted around the rim of the flange. All flanges are vacuum tested to a leak rate of 1x10 -9 cc/sec of He prior to shipping.

Search all Neutron Windows