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    • Miniaturized helium photoionization detector 

      Virginia Tech Intellectual Properties, Inc.; Agah, Masoud; Sreedharan Nair, Shree Narayanan (United States Patent and Trademark Office, 2018-08-14)
      The present invention provides an ionization detector having a base having an enclosed chamber. The enclosed chamber has a first end and a second end. The detector also includes a first outlet which is a source of an ...