Ultra-High Vacuum

PSL has the equipment and expertise to build and test ultra-high vacuum chambers and parts. PSL has extensive experience constructing UHV chambers to specific design requirements and space limitations. The typical PSL chamber has a vacuum capability of 10-10 Torr after bakeout.
(Brookhaven U4B SGM vacuum chamber)	(Vacuum chamber for PSII)
(IMS vacuum tank)	(Ames vacuum tank)

PSL can bring the same strong skill sets to HV components as well. In this attachment to the MST, CNC milling at compound angles was followed by welding leak tight compound joints. This weldment and a mirror image were replacement parts to upgrade a previous addition to MST. The 5-sided flange mates at its round boss to a counterbore on the MST's toroidal shell. A principal design consideration was preserving the maximum optical area visible through the rectangular flange, 2 MST toroidal shell ports and the mirror image's rectangular flange while ensuring vacuum tight construction. Circular and elliptical v-grooves with radiused root form a weld preparation around the two intersecting tubes' joint with the flange. Intersecting the v-groove are counterbores for 9 bolts of a 12-bolt hole pattern. (The other 3 bolts would interfere with the light path & vacuum boundary and so are omitted.) The round port provides unobstructed connection to a gate valve and pump. Click a photo below to display at full size.