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XLDsl-4K

Measurement System

The XLDsl-4K Measurement System provides a large experimental space and is designed for the most demanding 4 K experiments.

Highlights
Technical Specifications
Options
Layout and Facility Requirements
Contact Sales

The XLDsl-4K system is built for the most demanding experiments at 4 K. Based on the Bluefors XLDsl Dilution Refrigerator Measurement System, with the same extensive wiring capabilities and large experimental space, the system can be cooled from room temperature to base temperature simply by starting the pulse tube compressors.

The side-loading design facilitates extensive experimental wiring opportunities, and superconducting magnets can also be easily integrated into the measurement system. The XLDsl-4K can also be upgraded to a Bluefors Dilution Refrigerator Measurement System at a later stage.

Product Highlights

1.0

XLDsl-4K

Measurement System

Side-loading Enables the Fast Exchange of Wiring 

The side-loading feature allows wiring assembly work for the installation set flanges to be performed on a workbench away from the cryostat. Consequently, the preparation of a wiring assembly or a full experiment can be performed while the system is running. When the system is warmed up to room temperature, the assembly can be immediately exchanged, greatly reducing the room temperature idle time.

Preparing and exchanging the installation set assembly is carried out using a dedicated installation tool that provides the mechanical stability and maintains correct spacing between flanges when the assembly is not mounted into the cryostat.

Extensive Experimental Wiring Capabilities

The XLDsl-4K System offers a variety of access ports between the Room Temperature and the Mixing Chamber Flanges, the primary ports being the six side-loading line-of-sight (LOS) ports for experimental wiring.

  • 6 x Side-loading ports (LOS)
  • 4 x KF40 (LOS)
  • 4x KF40

The side-loading system is compatible with our High-Density Wiring options. High-Density Wiring is a modular option for the XLDsl-4K dilution refrigerator measurement system that enables high scalability for the experimental wiring, especially for high-frequency signals.

Read more about High-Density Wiring here

Vast Experimental Space 

Base Flange diameter: 556mm 

High Cooling Power with Three Pulse Tube Cryocoolers 

The standard configuration of the XLDsl-4K Measurement System includes two Pulse Tube Cryocoolers. It is possible to upgrade the system to have three Pulse Tubes for even higher cooling power. The third Pulse Tube will reduce the amount of available side-loading ports to 5. 

Upgradeable to a Dilution Refrigerator Measurement System

The XLDsl-4K Measurement System gives you the possibility to upgrade to a dilution refrigerator measurement system at a later stage. The XLDsl-4K system is an XLDsl system without the dilution unit and the Gas Handling System. Upgrading only requires 3–4 days of on-site installation.

Temperature Controller

The Bluefors Temperature Controller enhances the user experience of our cryogenic systems. With a modern and intuitive user interface, you gain direct control and overview of the temperature status of the system.

Read more about the Bluefors Temperature Controller

Technical Specifications

2.0

XLDsl-4K

Measurement System

Note: Base flange diameter is measured with a standard experimental space and shield set. The cooldown time to base temperature is measured on an empty system with standard experimental space and shield set. Cooling power specifications are for the standard system with two Pulse Tube Cryocoolers.

XLDsl-4KPT415-ENHPT425-ENHPT310-ENH & PT425-ENH
Base temperature < 3.2 K< 3.2 K< 3.0 K
Cooling power at 2nd stage at 4.2 K1.35 W2.35 W
Cooling power at 2nd stage at 3 K0.9 W
Cooling power at 4K Flange at 3 K without experimental load~100 mW~600 mW~700 mW
Cooling power at 4K Flange at 4.5 K without experimental load~1800 mW~2000 mW~1800 mW
Cooling time< 10 hrs< 9 hrs< 9 hrs
Base flange diameter556 mm556 mm556 mm

Options

3.0

XLDsl-4K

Measurement System

Note: XLDsl-4K has configurations with two or three Pulse Tube Cryocoolers. The Additional 4K Flange option requires the third Pulse Tube Cryocooler integration.

Faster turnaround options

4K Heater

4K Heater

The 4K Heater is a fully automated fast warm-up option, which decreases the warm-up time for our cryogenic measurement systems.

Frame Options

Additional Vibration Isolation

Additional Vibration Isolation

We offer improved vibration isolation for experiments that are particularly sensitive to low frequency vibrations (< 1 kHz).
Sound Isolation

Sound Isolation

Improved sound isolation for systems situated in spaces that require quieter work environments.

Shield options

Magnetic Shielding

Magnetic Shielding

Magnetic shielding provides protection for samples from interference caused by magnetic fields.

Other options

Additional Sensors

Additional Sensors

Additional temperature sensors can be integrated into the system for comprehensive diagnostics and measurements.
Additional 4K Flange

Additional 4K Flange

An additional 4K Flange can be used to dissipate large amounts of heat on XLDsl Systems.
Optical Access Ports

Optical Access Ports

Optical Access Ports offer direct line-of-sight access to the experimental space.

Related Products

Layout and Facility Requirements

4.0

XLDsl-4K

Measurement System

Layout Overview

Each of our systems is designed to be installed to a specific location defined in advance. A separate layout drawing is made for each Bluefors system, which should always be referred to for exact dimensions.

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

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