LT4 Helium Flow Cryostat
The LT4-DMX-1AL is our lowest cost liquid flow cryostat for optical and electrical experiments.
The LT4 works with either liquid helium or liquid nitrogen. The LT4 utilizes a standard transfer line and cold tip. If you need lower vibrations, take a look at the high performance LT3-WMX-1.
Applications
Optical: UV, VIS, IR
Electro-optical
Magneto-optical
Resistivity/Hall effect
High frequency electrical
Diamond anvil cell
DIP
Liquid samples
Non-optical
Thermal
Electrical
Magnetic susceptibility
Matrix isolation
Mossbauer
Typical Configuration
Cold head (LT4-DMX-1AL)
Liquid helium transfer line
Bolt on aluminum instrumentation skirt
Dewar adapter
Low cost aluminum vacuum shroud for optical and electrical experiments (DMX-1AL)
Aluminum radiation shield
2 high purity quartz windows
Instrumentation for temperature measurement and control:
10 pin feedthrough
36 ohm thermofoil heater
Silicon diode sensor curve matched to (± 0.5 K) for control
Silicon diode sensor curve matched to (± 0.5 K) with 4 inch free length for accurate sample measurement
Wiring for electrical experiments:
10 pin feedthrough
4 copper wires
Sample holder for optical and electrical experiments
Temperature controller
Features
Liquid helium flow
Low cost aluminum construction
Large, clear-view optical windows (1.25 in)
Large sample viewing angle for optical collection (F/1)
4.2 K liquid helium operation
0.75 LL/hr liquid helium consumption at 4.2 K
Liquid nitrogen comparable (77 K operation)
Fully customizable
Options & Upgrades
High flow transfer line
Custom temperature sensor configuration (please contact our sales staff)
Custom wiring configurations (please contact our sales staff)
Sample holder upgrades (custom sample holders available)
Window material upgrades (custom materials available)