Products

CNDT LHe Research Dewars with detachable bottom flanges

Overview

Click button below to enlarge view of 8CNDT liquid helium research dewar with detachable bottom flange from Janis Research

Designed with SuperVariTemp inserts or immersion inserts in mind, these dewars have demountable bottom flanges allowing easy installation of the desired tail set. They have a completely enclosed liquid nitrogen reservoir for increased cryogen efficiency, and are available in sizes ranging from those suitable for small variable temperature inserts up to those accommodating large diameter superconducting magnets.

 

 

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Standard Configuration

These dewars have detachable bottom flanges, such that various tail designs can be attached to the same dewar body. The Janis "SuperVariTemp," "VariTemp" or simple immersion tails are usually supplied with this series. Optical or non-optical experiments at low temperatures can be performed with these dewars.

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mechanical drawing of 8CNDT liquid helium research dewar with detachable bottom flange from Janis Research
Model L A B C Nominal
Helium Capacity
Nominal
Nitrogen Capacity
8CNDT 18 5 8 1.75 3 Liters 3 Liters
*8CNDT 24 5 8 1.75 5 Liters 4.5 Liters
8CNDT 30 5 8 1.75 7 Liters 6 Liters
NOTES: *Available from stock for fast delivery.

10CNDT

mechanical drawing of 10CNDT liquid helium research dewar with detachable bottom flange from Janis Research
Model L Nominal
Helium Capacity
Nominal
Nitrogen Capacity
*10CNDT 24 6 Liters 7 Liters
10CNDT 30 9 Liters 9.5 Liters
NOTES: *Available from stock for fast delivery.

Other Configurations

These larger CNDT dewars are designed for experiments requiring greater cryogen capacities or dimensional access. They are often used to accommodate superconducting magnets.  UHV or NMR designs are also available. 

 

mechanical drawing of larger CNDT liquid helium research dewars with detachable bottom flange from Janis Research
Model A B Nominal
Helium Capacity
Nominal
Nitrogen Capacity
*12CNDT 9 12 20 Liters 11 Liters
14CNDT 10 14 26 Liters 14 Liters
15CNDT 11 15 31 Liters 18 Liters
16CNDT 12 16 37 Liters 22 Liters
17CNDT 13 17 43 Liters 26 Liters
NOTES: *Available from stock for fast delivery.
NOTES: *Other sizes available.
Click image to enlarge view of special 16CNDT ultra high stability variable temperature cryostat, reference 7265, Janis Research, cryogenic equipment.

Special Model 16CNDT Ultra High Stability Variable Temperature Cryostat
The photo on the right shows a special model 16CNDT ultra high stability variable temperature cryostat offering variable temperatures between 5 K and 325 K, with controllable stable temperatures that maintain a better than 1 mK stability over a ten minute period. The sample may be located either in vacuum or in a cold gas environment (top loading) depending on the application. It is also available with a high field (6 to 17 tesla) superconducting magnet, with or without optical access to the sample. Contact Janis today for more information.

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