Vacuum Systems

Vacuum Systems

The three major vacuum systems serving the two-mile accelerator, the optical alignment system light pipe, and the beam switchyard (BSY) transport vacuum chambers are located as shown in Fig. 23-1. The accelerator vacuum system must maintain a very high vacuum in the accelerator to prevent RF electrical breakdown and electron scatter. Thirtytwo subsystems evacuate the accelerator to a design pre...

Prosthetic Limb Vacuum Systems

The Vacuum Assisted Socket System (VASS), developed by Total Environmental Control (TEC), is a specialized device used with artificial limbs to manage residual limb volume fluctuation in amputees. The system consists of a TEC liner, suspension sleeve and air evacuation pump. The device creates an elevated vacuum between the liner and the socket wall. The elevated vacuum promotes natural fluid e...

Vacuum Systems Physics 359e

Performance of Rhic Vacuum Systems*

The Relativistic Heavy Ion Collider (RHIC) has been operational since being commissioned in 1999. The three RHIC vacuum systems have performed well and met the design requirements. A brief description of the vacuum systems is given. The experience obtained over the last three years is summarized with emphasis on the management of helium leaks in the insulating vacuum and on the reduction of bea...

Sizing Vacuum Pumps for Cleaning Milking Systems

Early pipeline milking systems were commonly flooded during cleaning. Flood cleaning is practical for systems with small diameter milklines, short pipelines and few milking units. Flood cleaning becomes impractical as milkline diameter and length and the number of milking units is increased. Excessive water volume is required and the flow velocities and corresponding mechanical cleaning action ...