Deuterium lamps are sources of high intensity ultraviolet radiation down to 160 nm (for some models). Visible and infrared emission is negligible. This makes deuterium lamps ideal sources for UV spectroscopy, and as UV spectral irradiance standards.
Lamp Choices
63161 High Uniformity, Ozone Free
- Output down to 180 nm
- Very uniform beam distribution
63162 High Uniformity, Full Spectrum
- Output down to 160 nm
- Very uniform beam distribution
63163 High Irradiance, Full Spectrum
- Output down to 160 nm
- Very small arc, high intensity output
63164 High Irradiance, Ozone Free
- Output down to 180 nm
- Very small arc, high intensity output
63165 High Irradiance/Stability, Ozone Free
- Output down to 180 nm
- Uniform beam distribution and small arc
63945 Calibrated Lamp
- Output down to 180 nm
- Calibration data provided for 200 - 400 nm ranges
63946 Non Calibrated Lamp
- Output down to 180 nm
- Used to produce your own calibration standard
Complete Systems
We offer complete D2 Systems, which use the Series Q Lamp Housing and our Apex Illuminator. You can also build your own system by selecting the components listed below.
Power Supply
The 68942 is a simple, low cost supply that runs any of these deuterium lamps, at the rated 300 mA. The 68840 is a current adjustable, fully featured model.
Lamp Housings or Rod Mounts
You can run a deuterium lamp in an open-air rod mount or in an enclosed lamp housing. We describe the options below:
This housing has a condensing lens assembly that collects and collimates the lamp’s radiation. Output is a 1.3 inch (33 mm) diameter beam (Series Q Lamp Housings).
- Dual Source Monochromator Illuminators
The 7340 Series of Illuminators hold two sources simultaneously; output is from one source at a time. The output is a focused spot matched to our monochromators (7340 Series Monochromator Illuminators).
- Single Source Monochromator Illuminators
The Apex family of Monochromator Illuminators are fully integrated packages (power supply is built into lamp housing) matched to our monochromators (Monochromator Illuminators).
The 66145 is an inexpensive rod mounted holder. It runs the lamp in open air. Because of the dangerous UV radiation emitted by these lamps, we suggest that you use the 66145 as part of an enclosed system.
Fig. 1 Spectral irradiance of Deuterium Lamps.
Which Model Do I Choose
Choose a lamp first by the shortest wavelength you need. If you aren't working below 180 nm, choose an ozone free lamp. (Please note, “ozone free” means reduced ozone.) The high irradiance lamps have a very small, 0.5 mm, arc; they produce both the highest irradiance and highest radiance, but are also more expensive than the high uniformity lamps.
Construction
Deuterium lamps are arc lamps filled with deuterium, at low pressure. Deuterium lamps emit only from one side and in one direction, unlike arc lamps, which radiate in all directions. Collection is therefore easy and efficient. The window material determines the DUV output of the lamp. Ozone free models use UV Glass, which does not transmit below 180 nm.
Safety Considerations
Deuterium lamps emit high intensity ultraviolet radiation. Always use Ultraviolet Safety Equipment like protective eyewear, clothing, and gloves when working in the vicinity of these lamps.
