Ultra-Compact LD System
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-LD350 and UC-LD450 systems, and the new UC-LD450sl with two side-loading ports.
The side-loading ports in the UC-LD450sl 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-LD450sl 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 11-17 dBA 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.
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
Dilution Refrigerator Model
LDsl System 3D Interactive Model
This interactive 3D model of our LDsl System lets you explore our dilution refrigerators. Step inside the system, examine its components, and see how each one plays a role in the cooling process.
From stage to stage, you can follow how the system is engineered to reach and maintain ultra-low temperatures.
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.
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.
LD Systems Empowering Research
Quantum Magnonics: Toward Interconnected Quantum Systems
Building the Foundations of the Quantum Internet
Utilizing Synthetic Quantum Materials to Study Many-Body Systems
Exploring Quantum Materials with Scanning SQUID Microscopy
QTran Lab – Pushing the Boundaries of Quantum Device Technology
Detecting Dark Matter: The HAYSTAC experiment at Yale University
Aalto University: The First Bluefors Systems Still Cooling
See Also
Introducing Preconfigured LD Systems: Ready for Results in Just 4 Months
Increased Cooling Power Specifications for Bluefors Dilution Refrigerators
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?
Explore Our Services
Total System Care
Total System Care is tailored to your specific needs, with the features and services that are designed to best support your systems.
Customer Care
We support our customers throughout the lifetime of their system, providing dedicated care to find solutions for any issues.
Bluefors Lab
Bluefors Lab provides easy and convenient access to a cryogenic measurement system for startups, research groups, and other organizations.
Gas Handling System Upgrade
Bring all the advantages of our new Gas Handling System to older systems by upgrading to Gas Handling System Generation 2.
Pulse Tube Cryocooler Upgrade and Refurbishment
Our pulse tube cryocooler upgrade and refurbishment service helps you to maximize the performance of your systems and extend their lifetime.
Health Check
Health Check help you assess the health of your cryogenic measurement system, ensuring it operates at its best performance.
Training
We offer a training program to support users in operating and maintaining their systems throughout the lifetime of their Bluefors systems.
Relocation
Relocation service helps your when you need to move your lab and its cryogenic measurement systems to a new facility.
Spare Parts
Our spare part stock helps you to access genuine Bluefors parts quickly to maximize the uptime of your systems.
