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1. (WO2018086058) PHOTOIONIZATION DETECTOR ULTRAVIOLET LAMP

Pub. No.:    WO/2018/086058    International Application No.:    PCT/CN2016/105430
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Sat Nov 12 00:59:59 CET 2016
IPC: G01N 27/66
Applicants: HONEYWELL INTERNATIONAL INC.
SU, Aimin
CAO, Zhongxing
CHEN, Bing
LIANG, Feng
Inventors: SU, Aimin
CAO, Zhongxing
CHEN, Bing
LIANG, Feng
Title: PHOTOIONIZATION DETECTOR ULTRAVIOLET LAMP
Abstract:
Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102). Additional embodiments include a method of forming an ultraviolet lamp (100) for use with a photoionization detector, the method comprising applying at least one layer of a coating (120) onto an inner surface (110) of a sealed tube (102); sealing a crystal window (112) onto the sealed tube (102); filling the sealed tube (102) with at least one gas; sealing the sealed tube (102) containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (102); and directing the generated ultraviolet radiation through the crystal window (112) toward a sample gas in the photoionization detector.