The DC (formerly HPD) Model 107 K2 ADR Cryostat
Mid-Sized, Cryogen-Free, He3-Backed ADR Cryostat
The Danaher Cryo (formerly HPD) Model 107 K2 adiabatic demagnetization refrigerator (ADR) is specially designed for experiments needing high cooling power. By employing a Helium-3 cooler that offers a low 300 mK intercept, more of the ADR cooling power can go towards your experiment. This mid-sized research cryostat features an experimental volume of 34 cm in diameter and 20 cm tall. If your cooling needs exceed standard ADR capabilities, but require operational simplicity, the Model 107 K2 may be just the ticket.
Model 107 K2 Deep Dive
The Model 107 K2 adiabatic demagnetization refrigerator (ADR) cryostat includes a He-3 sorption cooler to provide more power than other models. It aims to support ultra-low temperature research by providing quick and affordable access to mK temperatures. Many customizable options make it easy to reconfigure to fit your needs.
This system uses a single-stage ADR to reach temperatures as low as 25 mK. An ADR operates by subjecting a salt crystal to strong magnetic fields. In these different states, the salt crystal will either absorb or dump thermal energy. This is used to shuttle heat away from the sample stage achieving mK temperatures. Because of the nature of this process, only a certain amount of heat can be absorbed before the crystal must be warmed up and regenerated.
With a He-3 sorption cooler backing the ADR, the Model 107 K2 can maintain a temperature of 100 mK for 75 hours under a 1 µW load. The sorption cooler also maintains a high power 300 mK intercept stage for experiments that don’t need to be as cold. It is a robust “turn-key” mK alternative to dilution refrigerators.
Applications: Astronomy, Spin QC, Photonic QC, Material Characterization, Condensed Matter Physics
Key Features
Danaher Cryo Helium-3 backed, single stage ADR cryostat with high-powered 300 mK intercept
More Features
Kevlar Suspension
30 mK stages
Cryomech PT410 Pulse Tube Cryocooler
Optimized for versatility & flexibility
Port Options
2X NW50 user ports on top flange
2X NW40 user ports on top flange
1X NW25 user ports on top flange
1X Ø150 mm user port on vacuum jacket bottom flange
Remote rotary valve motor
Circular cross-section
Quick release vacuum jacket flanges
Nickel plated aluminum thermal shields (50 K, 4 K)
Electronically controlled motorized heat switches
Captive screws on shield flanges
Vibration minimizing design
CryoBoss Software integration
About CryoBoss
CryoBoss® enabled cryostat control systems provide plug-and-play control and automation of your cryostat. DC provides a variety of systems that are adaptable to your needs. Consider things such as temperature range, stability, and additional sensors that you may be interested in.
System Specs
Large cooling capacity (~15 Joules) with 40 L He-3 Charge
Pulse Tube stage temperatures of 50 K and 2.7 K
ADR base temperature of 25 mK
Large capacity FAA salt pill ~70 cc capacity
0.9 W cooling power at 4.2 K
250 hour no load regulation at 100 mK
6 J of cooling capacity at 300 mK
Feature & System Specs Gallery
Helium-3 backed, single stage ADR
Stainless steel vacuum jacket
Electronically controlled motorized heat switches
Cryoboss Control Software
Pulse-tube stage temperatures of 50 K and 2.7 K
Accessory Add-Ons
Custom Service Stand
The top plate of the cryostat has mounting provisions that allow the cryostat to be attached to the service stand. This mount consists of a plate and ball attached to rods extending from the top plate of the vacuum jacket. The Service Stand attaches to the ball for lifting. Three jack screws on the top plate of the Service Stand allow for tilt adjustment and for locking the cryostat. The ball allows for rotating, and some slight swinging, of the cryostat. The service stand has casters to allow it to be rolled into position for attaching the cryostat.
The Service Stand has a vertical height adjustment capability that allows for placing the cryostat on a bench or other support structure. The vertical travel is approximately 76 cm.
Experimental Wiring
DC (twisted pairs) and RF (coax) wiring is available as an option.
Kevlar Suspension
Safely supports large masses for experiments.
Experimental Magnet
Magnet Specs
5T solenoid superconducting magnet
Compatible with ADR cryostats
Provides out-of-plane magnetic field for a sample at < 50 mK temperatures
0.3T Helmholtz coil
Second coil can be added to the front and back facing aluminum frames
Compatible with Model 12X probe stations
Accommodates the use of nanopositioners
