| 摘要 |
A device is provided for irradiating a fluid containing molecules subject to photolytic fission within a conduit, wherein the conduit includes a first opening and a longitudinal axis, the device comprising a valve fluidically connected to the first opening, the valve having a passageway leading to a second opening; a first optical member sealing the second opening; and an electromagnetic radiation (EMR) source positioned relative to the first optical member such that the EMR is directed, preferably along the longitudinal axis, through the first optical member and the passageway and into the conduit when the valve is an open position; wherein the first optical member is constructed from a material which is permeable to the EMR. The EMR source is preferably adapted to emit EMR at a wavelength sufficient to cause photolytic fission of the selected molecules in the fluid, and more preferably adapted to emit EMR at a wavelength sufficient to cause photolytic fission of nitrogen trichloride, diatomic chlorine, or both. Also, an air purging device is optionally provided near the valve so that fluid may be purged from the vicinity of the first optical member when the valve is being closed. Additional optical members, such as a filter, may be optionally disposed between the first optical member and the EMR source.
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