 ~200-1100 nm Spectral Range
The DT-MINI-2 (top) and DT-MINI-2-GS Deuterium Tungsten Halogen Light Sources combine the continuous spectrum of an RF-excited deuterium UV light source and a tungsten halogen VIS-NIR light source in a single optical path. The combined-spectrum sources produce stable spectral output from ~200-2000 nm in a compact package.
0.5 mm Aperture: More Powerful Output
The original DT-MINI was our first foray into a compact and versatile UV-NIR light source, and is still a great choice for a range of applications and measurements. The advantage of the newer DT-MINI-2 and DT-MINI-2-GS is that they use a bulb with a 0.5 mm diameter aperture, which results in more focused, uniform beam coupling to our optical fibers.
DT-Mini-2 Spectral Output
The DT-MINI-2-GS Deuterium Tungsten Halogen Light Source also utilizes the bulb with the 0.5-mm diameter aperture. Its added feature is a shutter for blocking the light path, which can be controlled via a manual switch or TTL. There is also a switch for turning the deuterium source on and off, and one for turning the tungsten halogen source on and off; each switch can be used independently of the other.
Rack-mount versions of DT-MINI-series lamps are available. These sources can be hard-wired to a spectrometer channel and racked into a Dual Box, Rack Box or Desktop Box with other accessories.
| Specification |
DT-MINI-2 |
DT-MINI-2-GS |
| Dimensions: |
153.4 mm x 104.9 mm x 40.9 mm |
140 mm x 50 mm x 125 mm |
| Weight: |
330 g |
475 g |
| Wavelength range: |
200-410 nm (deuterium); 360-2000 nm (tungsten halogen) |
200-410 nm (deuterium); 360-2000 nm (tungsten halogen) |
| Power consumption: |
350 mA @ 12 VDC |
350 mA @ 12 VDC |
| Output: |
3.8 watts (deuterium); 1.2 watts (tungsten halogen) |
3.8 watts (deuterium); 1.2 watts (tungsten halogen) |
| Stability: |
~1.0% peak-to-peak (over 4 hours) after 30-minute warm-up |
~1.0% peak-to-peak (over 4 hours) after 30-minute warm-up |
| Time to stable output: |
10 minutes (deuterium); 1 minute (tungsten halogen) |
10 minutes (deuterium); 1 minute (tungsten halogen) |
| Bulb life: |
~1500 hours (deuterium); 1500 hours (tungsten halogen) |
~1500 hours (deuterium); 1500 hours (tungsten halogen) |
| Ignition delay: |
<2.0 seconds (delay for cold start-up may be longer) |
<2.0 seconds (delay for cold start-up may be longer) |
| Connector: |
SMA 905 |
SMA 905 |
| Item |
Description |
|
| DT-MINI-2 |
Miniature combination deuterium and tungsten halogen light source (~200-2000 nm) |
|
| DT-MINI-2-GS |
Miniature combination deuterium and tungsten halogen light source with shutter option and function control switches |
|
| DT-MINI |
Miniature combination deuterium and tungsten halogen light source (~200-2000 nm) |
|
| DT-MINI-2-B* |
Spare bulb for DT-MINI-2 and DT-MINI-2-GS |
|
| DT-MINI-B* |
Spare bulb for DT-MINI and DT-MINI-GS |
|
* The DT-MINI-2-B Bulb can only be used in the DT-MINI-2 and DT-MINI-2-GS sources. Likewise, the DT-MINI-B Bulb can only be used in the DT-MINI and DT-MINI-GS.
Note: The overall power output across the combined spectrum is very stable -- with drift about 1.0% per hour. The tungsten source is very stable at <1.0% per hour. As a plasma emitter, the deuterium source is less stable. Changes within the plasma lead to changes in the light coupled in the fiber and drive can vary by wavelength. |
