Outgassing rate of aluminum alloy vacuum chamber for tristan ultra-high vacuum system.

Constructing an Ultra-High Vacuum Chamber and a Radio Frequency Helical Resonator for Trapping Ions

We describe the construction of an ultra-high vacuum (UHV) chamber and a radio frequency helical resonator for use in co-trapping atomic and molecular ions. Cleaning procedures for the in-vacuum components are provided. These procedures give positive results in cleaning copper electrodes. The thesis also provides general UHV construction techniques and design choices for our UHV chamber. For th...

Rolling Contact Fatigue in Ultra High Vacuum

High Productivity Vacuum Blasting System

In order to increase the productivity and economics of an existing (or baseline) vacuum blasting technology, which has been used to remove radioactive contamination, PCBs, and leadbased paint at Department of Energy (DOE) sites, the redevelopment and design of certain components has been initiated. These new components include a new rectangular blast nozzle, a blasthead with a wind curtain and ...

Extruded Aluminum Vacuum Chambers for Insertion Devices

Extruded aluminum vacuum chambers are commonly used in the storage rings of synchrotron facilities. For 18 years the APS has designed and fabricated vacuum chambers made from extruded aluminum for use with insertion devices at the APS and for use at other facilities including BESSY II, the Swiss Light Source (SLS), the Canadian Light Source (CLS), the TESLA Test Facility (TTF), and the European...

The vacuum control system design in ultracentrifuge chamber

The ultracentrifuge rotor usually works at 30,000 r/min or more, so centrifuge chamber must maintain a high vacuum to reduce friction of rotor and air. The paper described the vacuum control system design based on MSP430 microcontroller. The system included the MCU, sensors, measurement and conditioning circuitry, vacuum control circuit, power circuit components and so on. Tests proved that the...