Photoionization detector ultraviolet lamp
US10739310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2016 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Nov 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.