About ADC
video introduction
~2.50 min. long
ISO Cert
Beryllium Windows

ADC produces beryllium window assemblies that incorporate state-of-the-art bonding of beryllium to OFHC copper. These assemblies typically include TIG-welded lengths of stainless steel pipe and vacuum flanges. Better beryllium foil surface finish and/or customization is available upon request.


-Surface Finish:  Standard Surface Finish: is ~ 1.0 micrometer Ra

-Vacuum Tested:  Better than 5 x 10 –10 torr

-Leak Rate: Less than 2 x 10 –10 mbar-l / Sec


Part Number     

Flange Diameter 

 in (mm) 

A  in (mm) 

B  in (mm) 


2.75 (70)

0.2 (5)

0.99 (25)


4.5 (114)

0.39 (10)

1.58 (40)


6 (150)

0.39 (10)

1.99 (50)


8 (200)

0.59 (15)

2.36 (60)









ADC offers a large assortment of synchrotron and neutron equipment including; High Precision Slits, Optical Tables, Lead Shielded Beam Pipes, Micro Ion Chambers, Split Two Axis Ion Chambers, Mirror Systems, Monochromators, Spectrometers, Insertion Devices (EPU, Wiggler, Planar, In-Vacuum, Apple), ID Measurement System and many other Beamline Components.  Our products are being used at many synchrotron, neutron, and x-ray facilities around the world including; APS, NSLS, ALS, DLS, NSRRC, BESSY, DESY, CHESS, ESRF, BSRF, CAMD, NSRL, PAL, LNLS, CLS, SSRF, ANKA, KEK, SPring-8, ASP, ELETTRA, MAX-LAB.