Janis Research Co
Desc – Magnetic Cryostat
Model – HE3TLOSL

Used / Sold as is / Condition unknown / Could be used for parts

Core Components
• Charcoal sorption pump (with heater & thermometer) — for controlling He 3 condensation
• 1 K pot (with thermometer) — precooling stage
• He 3 pot (also known as the sample chamber)
• High-efficiency liquid helium cryostat — provides main cooling reservoir
• Top-loading load-lock — enabling sample exchange at low temperatures
• Sample probe — includes thermal anchoring, thermometer, and heater
• Optical windows — facilitating optical measurements
• Low-eddy-current cold finger — for fast thermal response
• Rotating sample holder — improves sample orientation control
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System Infrastructure & Extras
• External gas handling system — with He 3 gas reservoir
• External sorption cryo-pump — auxiliary vacuum/refrigeration
• 1 K pot cryogenic needle valve — motorized for flow control
• Helium level sensor — with readout capability
• Liquid helium transfer line
• 1 K pot pumping station — to maintain vacuum
• Turbo pumping station — for high vacuum in the inner vacuum chamber (IVC)
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Optional Add-ons
• Superconducting or resistive wiring feeds — for electrical experiments
• Coaxial cables — for signal routing
• Computer-controlled automatic temperature controller — for precise regulation
• Superconducting magnet — with support frame and high-current leads
• Magnet power supply — integrated into system setup
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This configuration allows:
• Ultra-low temperatures (typically below 400 mK) with He 3
• Optical and sample manipulation capabilities within vacuum
• Magnet integrations and electrical feedthroughs for versatile experiments

Primary Purpose
It enables researchers to study material properties at millikelvin temperatures (below 0.4 K) under controlled conditions. This is crucial for observing quantum phenomena that only appear at very low temperatures.
It’s a specialized tool for condensed matter physics and quantum research, where extreme low temperatures and magnetic fields reveal unique behaviors in materials.