A Miniaturized Helium Photoionization Detector

This is a technique to miniaturize a Helium Photo-ionization Detector using silicon micromachining resulting in a dimension less that 2cm x 1cm x 2mm. This is suitable for universal, sensitive yet non-destructive gas sensing. Unlike its universal counterpart, the Thermal Conductivity Detector, this consumes less power (just 1.4mW) and is more stable to ambient temperature, making it well-suited for portable systems.

Patent Information:

App Type	Country	Serial No.	Patent No.	File Date	Issued Date	Patent Status
US Utility	*United States	14/529,760	10,048,222	10/31/2014	8/14/2018	Issued

Category(s):

Devices

Chemicals

Environment

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For Information, Contact:

Rozzy Finn

Licensing Officer

Virginia Tech Intellectual Properties, Inc.

Rozzy@vt.edu

Inventors:

Shree Narayanan Sreedharan Nair

Masoud Agah