Cryostat Model 105 Annapurna

Large, cylindrical, pulse tube, dry,
dilution-refrigerator cryostat

Features:

• Cryomech PT415 Pulse Tube Cooler
• Remote Rotary Valve Motor
• Vibration Isolation Bellows
• Electronically controlled motorized heat switch
• Captive screws on vacuum jacket and thermal shield
• Nickel plated aluminum thermal shields (50 K, 4 K)
• Optimized for versatility and flexibility
• 12X 3" ports on top flange
• 1X NW50 ports on vacuum jacket side
• 1X Ø6" port on vacuum jacket bottom
• Robust internal construction
• Custom Service Stand (option)
• Allows for transport & servicing
• Allows for inverting of cryostat

Specifications:

• Large Experimental Space: 22.9" Diameter X 42.7" Height
• Cool down from 300 K in 24 hours (to be confirmed)
• Pulse tube stage temperatures of 50 K and 2.7 K
• 1.5 W cooling power at 4.2 K
• DR stage temperatures of 1.2 K, 0.6 K, 0.1 K, 0.03 K
• 100 mW cooling @ 100 mK

Section view of 105 Annapurna DR cryostat showing pulse-tube head, dilution refrigerator, sub-Kelvin stage plates, low-thermal structural supports, thermal shielding.

Outside view of Model 105 Annapurna dry DR cryostat

Inside view of Model 105 DR cryostat showing pulse-tube cooler and stage plates at 50 K, 3 K, 1.2 K, 600 mK, 80 mK, 10 mK

Cross section view of Model 105 Annapurna showing pulse-tube cooler, DR insert, pump line and heat exchanger.

Side view of 105 Annapurna DR cryostat vacuum jacket and pulse-tube head.

Cross-section of 105 Annapurna cryostat showing pulse-tube cooler, DR (dilution refrigerator) insert, millikelvin stage plates, and thermal shields.

Top view of 105 Annapurna DR cryostat showing pulse-tube cooler and feedthrough flanges.

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