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Cryogenic Solutions and IR Instruments for Research +1 (520) 622-7074 | infrared@irlabs.com ND Series Dewars |
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ND Series
The
ND line of nitrogen dewars contain a single cryogenic vessel. A vapor
cooled
radiation shield surrounds the vessel and the cold work surface. The
guard
vacuum of the dewar is enhanced by a molecular sieve “getter” which is
mounted
to the cold work surface.
Standard work surface diameters are 3, 5, 8,
10, 12,
and 14 inches. Larger sizes, including rectangular extensions, are
available upon
special request.
Applications
ND
systems are frequently used for near-infrared detector and camera
systems,
including CCD, HgCdTe, and InSb. Applications include materials and
electronic
component testing.
Features
- Operating
- Vapor cooled radiation shield
- Molecular sieve “Getter”
- Designed to customer specifications
| Inches | ND-3 | ND-5 |
ND-8 | ND-10 |
ND-12 |
ND-14 |
| Dewar Outside Diameter (in) |
4.95 |
6.95 |
9.95 |
11.95 |
13.70 |
15.95 |
| Dewar Height |
11.38 | 11.00 | 10.16 | 11.00 | 11.25 | 11.25 |
| Cold Plate Diameter |
3.12 | 5.12 | 8.12 | 10.18 | 12.00 | 14.18 |
| Work Area Height ("B" Dimension) |
1.50 | 1.50 | 1.50 | 2.00 | 2.00 | 2.00 |
| Weight Without Cryogens (lbs) |
7.50 | 10.75 | 22.00 | 36.00 | 48.00 | 61.00 |
| LN2/LHe Capacity (l) |
0.5 | 1.2 | 2.6 | 4.4 | 6.4 | 8.7 |
| LN2/LHE Hold Time (Standard Supports) (hrs) |
24/6 | 72/18 | 90/24 | 115/30 | -- | -- |
| LN2/LHE Hold Time (Rigid Supports) (hrs) |
-- | 70/6 | 80/10 | 106/12 | 120/14 | 143/16 |
| Centimeters | ND-3 | ND-5 |
ND-8 | ND-10 |
ND-12 |
ND-14 |
| Dewar Outside Diameter (cm) |
12.57 |
17.65 |
25.27 |
30.35 |
34.80 |
40.51 |
| Dewar Height |
28.91 | 27.94 | 25.81 | 27.94 | 28.58 | 28.58 |
| Cold Plate Diameter |
7.92 | 13.00 | 20.62 | 25.86 | 30.48 | 36.02 |
| Work Area Height ("B" Dimension) |
3.81 | 3.81 | 3.81 | 5.08 | 5.08 | 5.08 |
| Weight Without Cryogens (kg) |
3.41 | 6.18 | 10.00 | 16.36 | 21.82 | 27.73 |
| LN2/LHe Capacity (l) |
0.5 | 1.2 | 2.6 | 4.4 | 6.4 | 8.7 |
| LN2/LHE Hold Time (Standard Supports) (hrs) |
24/6 | 72/18 | 90/24 | 115/30 | -- | -- |
| LN2/LHE Hold Time (Rigid Supports) (hrs) |
-- | 70/6 | 80/10 | 106/12 | 120/14 | 143/16 |