The Janis 13” (model CNDT) is a general purpose liquid helium 4 dewar used with the DC Field resistive 32 mm bore and 50 mm bore magnets. The useful liquid helium volume is approximately 13 liters. This volume is surrounded by a liquid nitrogen jacket. Both of these reservoirs share the same isolation vacuum space.The top inlet fitting is a 3-inch nominal ladish flange and the helium bath pump port uses a NW 50 flange. The inner tail diameter of the helium space is 0.861” +/- .005”. Helium 3 cryostats and helium 4 vacuum cans are available for use with the Janis 13” dewar.
Details
Resistive Magnets
- Temperature Range: 0.5 mK - 40 K
Images
Click on an image for more details.
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4He vacuum can.
4He vacuum can.
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4He cryostat in vacuum can.
4He cryostat in vacuum can.
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13-inch Janis dewar.
13-inch Janis dewar.
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Dewar from above.
Dewar from above.
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Top of dewar.
Top of dewar.
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Rotater probe.
Rotater probe.
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Rotater probe sample holder.
Rotater probe sample holder.
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Rotater probe in place.
Rotater probe in place.
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Straight probe.
Straight probe.
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Straight probe in dewar.
Straight probe in dewar.
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Straight probe head.
Straight probe head.
View the embedded image gallery online at:
https://nationalmaglab.org/user-facilities/dc-field/instruments-dcfield/sample-environments/janis-bath-cryostat-13#sigProIdc8df64805a
https://nationalmaglab.org/user-facilities/dc-field/instruments-dcfield/sample-environments/janis-bath-cryostat-13#sigProIdc8df64805a