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  • Wired 8.08: A Helium Shortage?
    - and therefore helium-3 - before the fusion technology is even developed. Nearly all of the world's helium supply is found within a 250-mile radius of Amarillo, Texas (the Helium Capital of the World). A byproduct of billions of years of decay, helium is distilled from natural gas that has accumulated
  • How to Convert from Helium to Hydrogen as a Carrier Gas in Gas Chromatography (.pdf)
    This How to Guide will take you though the steps necessary to convert from Helium to Hydrogen as a carrier gas for Gas Chromatography. The use of Hydrogen from an inhouse >generator will lead to considerable benefits in cost, safety and convenience in the laboratory
  • Reducing Time Jitter in Time-of-Flight Detectors (.pdf)
    The effects of time jitter on time-of-flight mass spectrometer detectors is examined. Improvements to both microchannel flatness and ion arrival time. Improving TOF Mass Resolution by Reducing Ion Detector Time Jitter - - Chromatography Online. Stay Connected. * Browse Archives. * Application Notes
  • Selecting Makeup Gas for GC with FID (.pdf)
    such as helium. larger than. gas flow rate is in the order of a few mL/min. or nitrogen is delivered to the chromatographic. In contrast, the optimum flow rate for detec-. system between the column and the detector. The. the flow rate. tion of the compounds of interest is typically. makeup gas should
  • Mass Spectroscopy of Metastable Atomic Species in Gas Analysis and Processing Plasmas at High Spectrometer Source Pressures
    data from neutral gases and plasmas in a range of gas mixtures which include helium, krypton or argon are shown. The majority of the. data presented consist of electron impact threshold ionization efficiency curves obtained by scanning the energy of the electrons in the QMS source. The results
  • Evolved Gas Analysis
    . gases from the TGA and offers the. following benefits: Instrumental Setup. The ability to use either Faraday cup or. All of the TGA systems supplied by. secondary electron multiplier (SEM). PerkinElmer (Pyris 1 TGA, STA6000. detectors depending on the sensitivity. and TGA4000) can be easily interfaced
  • Mass Spectroscopy of Metastable Atomic Species in Gas Analysis and Processing Plasmas at High Spectrometer Source Pressures - AVS 2011
    , in particular, from the plasma is improved. The sampling of ion and neutral species from magnetron plasmas is a good example. The. reactor. Typical data from neutral gases and plasmas in a range of gas mixtures which include helium, krypton or argon are shown. The majority of the. particle counter used
  • Improving the Hermetic Seal on Moxtek's AP3 Window
    of low energy X-rays while. maintaining a hermetic seal critical for the X-ray detector's performance. While. Moxtek ensures that all windows meet published limits for leak rates, no material is a. perfect gas barrier and gasses will diffuse through window assemblies over time. As. a continuous