A few nights ago, on May 1st, 2019, I achieved the biggest and most significant milestone yet at Applied Ion Systems since I first started these efforts over a year ago – the first full system qualification test and high … Continued
INTRODUCTION As part of the design and build of the Integrated High Vacuum Test Stand, several custom adapter plates needed to be designed and manufactured to mate the high vacuum diffusion pump and baffle to the chamber. Unfortunately, all of … Continued
INTRODUCTION Calculating the parameters of a high vacuum system can be a tedious and daunting task, involving a significant amount of factors, as well as good estimates and approximations for a variety of parameters. Because a vacuum system involves highly … Continued
I. INTRODUCTION Physics and experimental science equipment are exceptionally complex, and often require a diverse range of engineering disciplines. Whether it is semiconductor fabrication, sputtering, fusion research, ion beam systems, space propulsion, or some other complex process, the system will … Continued
Now that all of the major calculations have been completed, the system V4 design can finally start being pieced together. While the calculations are very enlightening, and required for planning the operational parameters of the system, actually building the system … Continued
FORELINE PARAMETERS AND PUMPDOWN TIME CALCULATION FROM ATMOSPHERE TO ROUGH VACUUM SYSTEM DESIGN V4 From the previous chapters, the major and critical vacuum parameters were explored and calculated for the V4 design. This section will cover the final main calculations for … Continued
MAXIMUM GAS LOADS FOR VARIOUS PROCESS GASES FOR VARIOUS EXPERIMENTS SYSTEM DESIGN V4 From the previous Chapter 5 calculations, it was shown how to calculate the total gas load for the system V4 design during pumpdown, which consists of water vapor due … Continued
TOTAL GAS LOAD DUE TO OUTGASSING AND DETERMINATION OF ULTIMATE PRESSURE SYSTEM DESIGN V4 Now that molecular and transitional flows for various process gases have been calculated for the current system, the total outgassing load for the system during pumpdown … Continued
CALCULATIONS AND COMPARISONS OF SYSTEM CONDUCTANCES AND EFFECTIVE SPEEDS FOR TRANSITIONAL FLOW FOR VARIOUS PROCESS GASES SYSTEM DESIGN V4 SECTION 1 – Design Overview From the previous Chapter 3 posts, the calculations for molecular flow for system iterations V2, V3, … Continued
CALCULATIONS FOR CONDUCTANCES AND EFFECTIVE SPEEDS IN MOLECULAR FLOW FOR VARIOUS PROCESS GASES SYSTEM DESIGN V4 SECTION 1 – Design Overview As of the present time, design V4 is the current design of the Small Scale Multipurpose High Vacuum System … Continued