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Lesker U Live! is series of free webinars spanning many topics taught by leading vacuum experts.

Lesker U provides the following:

  • High-value vacuum expert training
  • A solid base of understanding surrounding vacuum technology
  • Deep dives on specific vacuum technology topics

All Lesker U Live! Webinars

Introduction to Residual Gas Analysis: Characterizing Partial Pressures

The precise characterization of pressure in a vacuum system requires the analysis of the residual gases that are present. This special 1.5 hour introduction to Residual Gas Analysis (RGA) or partial pressure analysis will review the additional data than can be acquired as compared to a simple measure of total pressure. The system uses atomic mass units to distinguish atomic and molecular gases in addition to gas compounds such as CO2, fingerprints, pump fluids, and other hydrocarbons. In this webinar the broad range of useful information, including trends in gas composition, outgassing rate, leak detection, and system cleanliness derived from RGA will be discussed. Principles of operation, pressure limits, sensitivity, mass ranges, spectra interpretation, detector placement, start-up and shutdown will also be discussed.

Duration: 1 Hour(s)

Expert(s): Evan Sawyer

Evan Sawyer is the Global Product Manager for Vacuum Generation and Analysis at the Kurt J Lesker Company, overseeing Pumps and Instrumentation. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Over the past 7 years, Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His goal is to make vacuum and all of the necessary components / processes easy to use and understand so that end-users can focus on what they are most passionate about - which is their process.



Tests & Modeling of Vacuum System Performance

Understanding the performance of a vacuum system can provide insights into the quality and repeatability of processes done in vacuum. There are several factors which can result in large differentials between what a vacuum system was designed to accomplish, on paper, and what can be achieved empirically. In this 1-hour webinar we will discuss a few simple tests that can be used to effectively characterize the performance of a vacuum system. In addition, we will review the basic equations that relate ultimate pressure, gas load, chamber volume, cleanliness, and pumping speed. We will also discuss tactics to optimize vacuum system performance and take questions from participants on their specific vacuum system issues.

Duration: 1 Hour(s)

Expert(s): J.R. Gaines

J.R. Gaines is the Technical Director of Education for the Kurt J. Lesker Company, (Jefferson Hills, PA). The Lesker Company is a global scientific equipment manufacturer supplying materials and tools for vacuum-enabled innovation. Gaines has more than 40 years of experience in the research, development and commercialization of advanced materials technologies including superconductivity, semiconductors, cryogenics, space simulation, energy generation, energy conversion and storage. His experience includes vacuum systems, thin film deposition, inorganic chemistry, nanotechnology, and advanced ceramic processing.



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