Cryogenic Solutions and IR Instruments for Research
 
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HDL Series Dewars
HDL Series helium dewars with 2 cryogenic vesselsHDL Series
The helium dewars in the HDL line contain two cryogenic vessels. The LN2 vessel directly cools a radiation shield that surrounds the LHe vessel and the cold work surface. All interior dewar surfaces are lined with metal foil in order to provide additional shielding.

Standard work surface diameters are 5, 8, 10, 12, and 14 inches. Larger sizes, including rectangular extensions, are available upon special request.


Applications

HDL
Systems are frequently used for mid- and far-infrared detector and camera systems, including bolometers, photo detectors, and InSb. Applications also include materials testing, electronic component testing, and the cooling of entire stand alone instruments. 

Features

  • Operating temperature range: 2K to 4.2K (with low temperature modification)
  • Liquid cooled radiation shield
  • Multiple layers of shielding foil
  • Completely customizable configuration 
Specifications for HDL Series Dewars
 Inches  HDL-5  HDL-8  HDL-10  HDL-12  HDL-14
 Dewar Outside Diameter (in)
 6.95 9.95
 11.95 13.70
 15.95
 Dewar Height
 12.50  12.31  13.50  13.75  13.75
 Cold Plate Diameter
 5.12  8.12  10.18  12.00  14.18
 Work Area Height ("B" Dimension
 1.50  1.50  2.00  2.00  2.00
 Weight Without Cryogens (lbs)
 15.75  26.00  42.00  54.00  68.00
 LN2 Capacity (L)
 0.8  2.3  4.2  6.1  8.4
 LN2 Hold Time (Standard Supports) (hrs)  30  30  35  --  --
 LN2 Hold Time (Rigid Supports) (hrs)  20  27  32  48  60
 LHe Capacity  1.2  2.6  4.4  6.6  8.7
 LHe Hold TIme (Standard Supports) (hrs)  90  100  135  --  --
 LHe Hold Time (Rigid Supports) (hrs)  25  30  47  55  78

 Centimeters
 HDL-5  HDL-8  HDL-10  HDL-12  HDL-14
 Dewar Outside Diameter (cm)
 17.65 25.27
 30.35 34.80
 40.51
 Dewar Height
 31.75 31.27 34.29  34.92  34.93
 Cold Plate Diameter
 13.00  20.62  25.86  30.48 36.02
 Work Area Height ("B" Dimension)
 3.81  3.81  5.08  5.08  5.08
 Weight Without Cryogens (kg)
 7.16  11.82 19.02  24.55  30.91
 LN2 Capacity (L)
 0.8  2.3  4.2  6.1  8.4
 LN2 Hold Time (Standard Supports) (hrs)  30  30  35  --  --
 LN2 Hold Time (Rigid Supports) (hrs)  20  27  32  48  60
 LHe Capacity  1.2  2.6  4.4  6.6  8.7
 LHe Hold TIme (Standard Supports) (hrs)  90  100  135  --  --
 LHe Hold Time (Rigid Supports) (hrs)  25  30  47  55  78