PHYSIKE Cryocloud-300 Integrated Single-Shot Helium-3 Cryostat
| Brand | PHYSIKE |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | Cryocloud-300 |
| Pricing | Upon Request |
Overview
The PHYSIKE Cryocloud-300 is an integrated single-shot helium-3 (³He) cryostat engineered for stable, ultra-low-temperature operation in advanced condensed matter physics and quantum device characterization laboratories. It operates on the principle of ³He evaporation cooling combined with cryogenic precooling—where gaseous ³He stored in an onboard reservoir is condensed via a built-in 4 K pulse-tube cold head, then transferred into an internal ³He pot. A high-efficiency low-temperature adsorption pump—cooled to <1.5 K by the cold head—subsequently pumps the liquid ³He, inducing evaporative cooling down to sub-300 mK temperatures. Unlike continuous-flow or dilution refrigerator systems, the Cryocloud-300 requires no external gas handling infrastructure, making it ideal for labs seeking rapid deployment, minimal operational overhead, and vibration-sensitive applications such as scanning tunneling microscopy (STM), atomic force microscopy (AFM), and superconducting quantum interference device (SQUID) magnetometry.
Key Features
- Integrated design: 4 K pulse-tube cold head mechanically decoupled via suspension mounts to minimize transmission of mechanical vibrations to the ³He stage
- Onboard ³He reservoir with sealed, all-metal microchannel plumbing and integrated cryo-adsorption pump
- Optimized thermal architecture enabling cooldown from 300 K to base temperature in under 8 hours
- Base temperature: <280 mK (measured with calibrated Cernox™ or RuO₂ sensor, zero external heat load)
- Hold time at base temperature: >100 hours under typical experimental conditions
- Temperature stability: ±1 mK over 1-hour intervals at base temperature
- Cold plate diameter: 200 mm, compatible with standard sample holders and multi-probe wiring configurations
- Pre-integrated cabling: 16 RF semi-rigid coaxial lines and 72 twisted-pair low-thermal-conductivity wires routed through vacuum-tight feedthroughs
Sample Compatibility & Compliance
The Cryocloud-300 supports diverse sample geometries and measurement modalities—including transport (DC/AC), magnetotransport, microwave reflectometry, and optical access via side ports (optional). Its modular flange system conforms to ISO-KF and CF standards, enabling straightforward integration with UHV chambers, STM heads, and neutron scattering beamlines. The system complies with IEC 61000-6-2 (electromagnetic immunity) and meets essential safety requirements per EN 61010-1 for laboratory electrical equipment. While not certified for medical or industrial process use, its thermal performance and control architecture align with GLP-compliant low-temperature testing workflows common in academic and national lab settings.
Software & Data Management
Temperature regulation is managed via a dedicated PID-based controller with real-time logging capability (1 Hz sampling, timestamped CSV export). The system supports LabVIEW™ and Python (PyVISA) API integration for automated experiment sequencing, including ramp-and-hold protocols and conditional cooldown triggers. All temperature setpoints, sensor readings, and heater power outputs are recorded with audit-trail metadata, satisfying basic traceability requirements for ISO/IEC 17025-aligned calibration documentation. Though not FDA 21 CFR Part 11 compliant out-of-the-box, the data acquisition framework is structured to support post-deployment validation for regulated R&D environments.
Applications
- Quantum transport measurements in topological insulators, 2D materials, and mesoscopic devices
- Low-noise SQUID and transition-edge sensor (TES) characterization
- Angle-resolved photoemission spectroscopy (ARPES) and resonant inelastic X-ray scattering (RIXS)
- Diamond anvil cell (DAC) experiments requiring stable sub-300 mK thermal platforms
- Magnetization and specific heat studies near quantum phase transitions
- De Haas–van Alphen oscillations and quantum oscillation mapping in heavy fermion systems
- Neutron scattering sample environment integration for magnetic structure determination
FAQ
What distinguishes the Cryocloud-300 from continuous-flow ³He systems?
It eliminates the need for external ³He gas recirculation, compressors, and purification units—reducing footprint, cost of ownership, and operational complexity.
Can the Cryocloud-300 be retrofitted with optical access or custom wiring?
Yes—custom flange configurations, viewport options (CaF₂, sapphire), and additional feedthroughs are available upon request during order configuration.
Is remote monitoring supported?
Standard Ethernet interface enables TCP/IP communication; third-party SCADA or EPICS integration is feasible with documented register mapping.
What is the typical maintenance interval?
No routine maintenance is required between cycles; the sealed ³He circuit and pulse-tube cold head are rated for >20,000 operating hours with periodic helium purity verification recommended every 2 years.
Does the system include temperature calibration certificates?
A NIST-traceable calibration report for primary sensors is provided with each unit; secondary sensor calibration can be performed in situ using reference thermometers per ITS-90 guidelines.
