DP Backing
The backing line from the diffusion pump exhaust to the buffer tank and on to RP1. The diffusion pump requires a backing pressure below ~0.3 mbar to operate; this line carries its exhaust to the roughing side.
Photos
The backing line from the diffusion pump exhaust to the buffer tank and on to RP1. The diffusion pump requires a backing pressure below ~0.3 mbar to operate; this line carries its exhaust to the roughing side.