Medium Pressure Mercury Lamp Wavelength

Mercury lamps emit sufficient energy above 300 nm at only certain wavelengths which are very useful for monochromatic irradiation and so the spectrum can also be used as a point light source providing uniform irradiation.

Medium pressure mercury lamp wavelength.

In medium pressure mercury lamps a plasma that emits uv light is generated by applying electrical voltage. Vapourtec offer a range of 9 wavelength filters for use with the mercury pressure mercury lamp. High pressure mercury vapor lamps are commonly used for general lighting purposes. Medium pressure mercury arc ushio produces standard and custom uv emitters.

In medium pressure mercury vapor lamps the lines from 200 600 nm are present. Unlike most other uv sources the medium pressure lamp mpl has a polychromatic spectral distribution from 190 nm up to the infrared spectrum. For this reason vapourtec offers a range of 9 wavelength filters for use with the medium pressure mercury lamp. These allow the selection of desired wavelengths in addition to eliminating unwanted wavelengths that cause side reactions or the.

The uv lamps for water treatment consist of specialized low pressure mercury vapor lamps that produce ultraviolet radiation at 254 nm or medium pressure uv lamps that produce a polychromatic output from 200 nm to visible and infrared energy. It is either housed in a quartz glass sleeve inside the water. Medium pressure mercury lamps produce characteristic bands at 313 and 365 nm. Medium pressure lamps produce the greatest uv output per unit length of lamp of the 3 lamp types.

The distribution of energy over the wavelength ranges is depicted on the left. New high power amalgam lamps are significantly more powerful than low pressure lamps. The lamps can be constructed to emit primarily in the uv a around 400 nm or uv c around 250 nm. The high intensity medium pressure mercury lamp has a broad radiant output providing wavelengths from 220 nm to 600 nm.

They emit primarily in the blue and green. The uv lamp never contacts the water.