The Hamamatsu X2D2® deuterium lamps (high brightness & long lifetime deuterium lamps) deliver unparalleled brightness twice that of L2D2 lamps, while still maintaining the high stability and long lifetime offered by the conventional deuterium lamp (0.5 mm aperture type). These characteristics will enhance sensitivity and throughput in various photometric instruments.
Parameter |
L9518 |
L9519 |
L10904 |
L9840 |
Unit |
|||
Type |
|
Standard |
Standard |
See-through |
Standard |
- |
||
Window material |
UV glass |
Synthetic silica |
MgF2 |
- |
||||
Spectral distribution |
185 to 400 |
160 to 400 |
115 to 400 E |
nm |
||||
Aperture diameter |
0.5 |
mm |
||||||
Output stability at 230 nm |
Drift (Max.) |
±0.3 |
%/h |
|||||
Fluctuation (p-p) Typ. |
0.005 |
% |
||||||
Guaranteed life at 230 nm A |
|
2000 |
h |
|||||
Discharge starting voltage (Max.) B |
400 |
V dc |
||||||
Anode current |
300 ± 30 |
mA dc |
||||||
Tube voltage (Typ.) |
90 |
85 |
V dc |
|||||
Filament ratings |
Warm-up |
Voltage |
2.5 ± 0.25 |
V dc |
||||
Current (Typ.) |
4 |
A dc |
||||||
Operating |
Voltage |
1.7 ± 0.2 |
V dc |
|||||
Current (Typ.) |
3.3 |
A dc |
||||||
Filament warm-up time (Typ.) |
|
20 |
s |
|||||
Power supply C |
C9559, M9521 |
- |
||||||
Lamp House |
E9522-50, E9558-50 |
- |
||||||
Recommended operating temperature D |
245 to 290 |
°C |
A. Lamp life end is defined as the point when light output at 230 nm falls to 50 % of its initial value or when output fluctuations exceed 0.05 % (p-p).
B. A trigger voltage must be applied to the anode and auxiliary electrode.
C. The power supply for the L2D2 cannot be used to operate X2D2 lamps.
D. Recommended temperature for operating a lamp in the lamp housing. Consult us on how to measure the temperature.
E. Does not support vacuum evacuation and so should be used in nitrogen atmosphere. * Custom lamps not listed above will be available on request. Please feel free to contact us.
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