Ultra-Compact LD
Dilution Refrigerator Measurement System
The Ultra-Compact LD System is an all-in-one, ultra-compact cryogenic measurement system based on our LD systems.
The Ultra-Compact LD System is an all-in-one, ultra-compact cryogenic measurement system based on our LD systems.
The new, compact, cryogenic measurement system is ideal for laboratory environments with limited space, or as a solution for high-performance computing (HPC) data centers where multiple units need to be installed in the same space. It is built to operate silently with low vibration, making it perfect for noise-sensitive environments.
The layout integrates the cryostat, gas handling system, and pulse tube compressor into a single unit, and adds generous rack space for measurement electronics to create a tidy, easy-to-access, compact system – without compromising performance.
Product Highlights
1.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Compact. Flexible. Accessible.
As an all-in-one system, the Ultra-Compact LD gives you the freedom to place the system wherever you need it in your lab. And when it comes to operating and carrying out experiments, the system includes an integrated 19” rack with 10U space for additional measurement electronics.
Designed with accessibility in mind, doors provide easy access to the Gas Handling System, measurement electronics and the pulse tube compressor.
The cryostat vacuum cans are available in two configurations, a 2-section version offering 237 mm experimental space, or a 3-section version offering a vast 510 mm experimental space.
Enhanced Cooling
We have developed a solution to optimize the integration of pulse tube cryocoolers in our dilution refrigerators to increase their cooling performance. This redesigned integration results in a significant increase in cooling power at the 4K flange. The improved pulse tube cryocooler integration also makes it possible to operate the 4K flange at a higher temperature without affecting the dilution unit. Elevated 4K flange temperatures generate a significant increase in available cooling power.
Learn more about enhanced cooling
Extensive Capabilities for Experimental Wiring
The system features a variety of access ports for experimental wiring between the Room Temperature and the Mixing Chamber Flange. There are two different port configurations for the Ultra-Compact LD System, the classic ISO-K63 configuration for the UC-LD250 and UC-LD400 systems, and the new UC-LD400sl with two side-loading ports.
The side-loading ports in the UC-LD400sl also make it possible to install our High-Density Flex Wiring (FPC) and High-Density Wiring options in the Ultra-Compact LD. The side-loading feature is particularly beneficial for complex experiments with higher payloads, or quantum applications with a large number of qubits in a compact cryostat. There is also an increased number of heat switches to optimize and speed up the cooldown process of the loaded system.
Our side-loading measurement infrastructure options are also 100% compatible with our XLD systems, making the UC-LD400sl the ultimate testing system with interchangeable wiring across LD and XLD systems. The side-loading feature makes it easy to assemble and maintain large wiring infrastructures. Assembly can be prepared on a workbench while the system is running, and immediately exchanged when the system reaches room temperature.
ISO-K63 Configuration
- 2 x ISO-K63 slotted in all flanges
- 5 x KF40 including central port
Side-loading Configuration
- 2 x LOS side-loading ports slotted in all flanges
- 4 x KF40 ports
Silent Operation
The sound level is 8-14 dB lower compared to the standard LD system in a frame. The silent operation is ideal for labs where the measurement system is installed in the same space as users’ workstations.
Integrated Mounting Rack
A 19” mounting rack with 10U free space for measurement equipment is integrated into the Ultra-Compact LD frame, with the possibility to route wiring neatly through the frame for a clean installation.
Vibration Dampening
The system utilizes multiple dampening solutions, to deliver low-vibration operation. The pulse tube ballast tanks and remote motor have their own vibration isolation. The pulse tube compressor is installed on a vibration isolation platform, and the frame has been made extra rigid by the use of diagonal frame supports.
Same Versatility as LD Systems
Bluefors offers a vast catalog of performance-optimized measurement infrastructure, and a selection of superconducting magnets (with less than 3 Tesla z-axis field available for the UC-LD).
Additional options include a Long-Life Cold Trap that allows the system to remain cold for up to 3 years, additional radiation and magnetic shielding, a Helium battery, and other options available for our LD systems.
Gas Handling System Generation 2
The Ultra-Compact LD system utilizes the recently released Gas Handling System Generation 2, featuring a new multi-stage roots main circulation pump for reliable, silent, maintenance-free operation.
The new Generation 2 Control Software offers unmatched ease-of-use with automation, a best-in-class data viewer with system logs, and cryogenic state awareness.
Services
Total System Care
Total System Care enables you to focus on your work—carrying out research, operating quantum computers, and driving innovation—now, and over the full lifetime of your system.
Tailored to your specific needs, you’ll benefit from a package with an agreed service level and accompanying set of field services that ensure your systems operate at the best possible performance level.
Technical Specifications
2.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Gas Handling System & Control Software Generation 2
Pulse Tube Cryocooler Configurations
3.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Options
4.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Performance Graphs
5.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Above are cooldown curves for three different configurations of LD systems measured with calibrated resistance thermometers.
- System 1: basic LD with LN2 pre-cool
- System 2: basic LD
- System 3: LD with 100 mm extra sample space, Mixing Chamber shield, additional sample mounting plate, and large amount of DC and RF cabling.
The Pulse Pre-Cooling sequence is one of the key points in reducing the cooldown time (see spots 2 and 3). Because we do not use exchange gas, some parts of the dilution refrigerator unit stay ‘hot’ on cool down, which prevents condensation of the helium3 –helium-4 mixture. To cool down these hot spots effectively, the mixture is repeatedly admitted from the tanks to the Still side of the dilution refrigerator to operate as an exchange gas and then pumped out again.
Services
Customer Care
We support our customers throughout the lifetime of their system, providing dedicated care to find solutions for any issues. Our technicians and engineers are ready to help you wherever you are located, with prompt service delivered either remotely or on-site.
Related Products
Layout and Facility Requirements
6.0
Ultra-Compact LD
Dilution Refrigerator Measurement System
Layout Overview
The Ultra-Compact LD System is designed with a pre-determined lab layout.
Facility Requirements
The basic requirements are 3-phase electricity, cooling water, and compressed air. The full list of requirements and specification details can be found in the Pre-Installation Guide, please contact our sales team for a copy.
See Also
Ultra-Compact LD System: A Silent, Space-Saving and Powerful Cryogenic Measurement System
Ultra-Compact LD System – Now Available
Gas Handling System Gen. 2 – Designed for Performance
Control Software Generation 2 – Cool Power at Your Fingertips
First Generation 2 Systems Installed at the University of Copenhagen
Cryomech PT310-RM Integrated Into Bluefors Dilution Refrigerators
Quantum Applications in the Bluefors Measurement System
1000th Bluefors system has been installed
How Does a Dilution Refrigerator Work?
