Medium Pressure Mercury Lamp Wavelength

Medium pressure mercury arc ushio produces standard and custom uv emitters.

Medium pressure mercury lamp wavelength.

For this reason vapourtec offers a range of 9 wavelength filters for use with the medium pressure mercury lamp. Even though more cleaning may be required for medium and amalgam lamp based systems because they have a smaller number of lamps in the uv unit these systems can. In medium pressure mercury vapor lamps the lines from 200 600 nm are present. Medium pressure mercury lamps produce characteristic bands at 313 and 365 nm.

High pressure mercury vapor lamps are commonly used for general lighting purposes. The uv lamp never contacts the water. They emit primarily in the blue and green. It is either housed in a quartz glass sleeve inside the water.

The distribution of energy over the wavelength ranges is depicted on the left. Medium pressure lamps produce the greatest uv output per unit length of lamp of the 3 lamp types. Unlike most other uv sources the medium pressure lamp mpl has a polychromatic spectral distribution from 190 nm up to the infrared spectrum. These allow the selection of desired wavelengths in addition to eliminating unwanted wavelengths that cause side reactions or the.

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

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. The unfiltered medium pressure mercury lamp provides a broad radiant output of wavelengths between 220 nm and 600 nm.