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Diacell® CF-DAC System

Optical spectroscopy, Cryostat with integrated DAC, Pmax = 20 GPa , Tmin = 4 K
  • The Diacell® CF-DAC enables experiments at pressures up to 20 GPa and temperatures down to about 4 K
  • The system combines and fully integrates the Diacell® CryoDAC-LT to the easyLab® CF cryostat
  • The continuous flow cryostat can be used with either liquid helium or liquid nitrogen and the samples can be changed with the cryostat being cold
  • Five sets of windows (four radial and one axial at the bottom) are supplied as standard. All windows are demountable and may be exchanged at any time
  • Cooling down time is about 40 mins with liquid helium consumption of ~ 1.5 L
  • Options: an integrated Optiprexx system automated for Ruby fluorescence and a temperature controller


SKU: A90000

For more info, quotation or call: Contact us


Continuous flow cryostat with integrated Diacell® CryoDAC-LT diamond anvil cell.

This low temperature and high pressure system combines Almax easyLab’s continuous flow cryostat capable of reaching temperatures as low as 4 K and a miniature diamond anvil cell, the Diacell® CryoDAC-LT which is ideal for work up to about 20 GPa.

A continuous flow cryostat works on the principle that liquid cryogen (this can be helium or nitrogen) is transferred from a separate vessel and circulated through a transfer tube to the heat exchanger of the cryostat. The cryogen flow is regulated by a needle valve on the transfer tube.

Precise temperature control is achieved by using a temperature controller to drive a heater located near the sample. The temperature close to the sample is measured by employing a standard rhodium iron sensor, also connected to the controller.

The CF-DAC system has excellent optical access. Five sets of windows (four radial and one axial at the bottom) are supplied as standard. Each window set includes three windows (inner, radiation and outer). All windows are demountable and may be exchanged at any time. The standard system is supplied with fused silica windows.

Cooldown time is of the order of 40 mins and the liquid helium consumption is about 1.5 litres. Samples can be changed with the cryostat cold enabling rapid sample exchanges.  The typical helium consumption of the system at 4.2 K is approximately 500 cc/hr.


Cryostat type Continuous Flow
Temperature Range (Helium) 3.4 K to 300 K with GF pump  or 2.5 K to 300 K with rotary
Temperature Range (Nitrogen) 77 K to 300 K
Cool down time ~40 min
Sample access Five sets of windows (four radial and one axial at the bottom)
Standard Window Fused silica
Electrical feedthrough 2
Safety Evacuation valve and safety pressure relief
Integrated Diamond Anvil Cell Diacell® CryoDAC-LT
DAC Pressure Mechanism Hydraulic ram
Maximum Pressure 20 GPa

Maximum pressure is dependent upon the culet size of the anvils. Almax easyLab is committed to its policy of continuous improvement. Specifications may change without notice. easyLab and Diacell are registered trademarks of Almax easyLab.


We have compiled a series of technical documents (brochures, articles, technical drawings, …) which you might find useful to help you understand this product better.

Technical documentation

Brochure CF-DAC

Technical Drawing

Please contact us for further details on the engineering drawings.

Spares, Accessories and Options

Our products are tested before leaving our factory on their way to your laboratory.

They also come supplied with the required basic tooling, including gasket blanks, to use them. All is contained in the transportation casing to move around laboratories easily.

Below you can find some of the accessories and spares you might also consider. If you cannot find what you need, please do not hesitate to contact our team.

Temperature controller
Temperature controller, Model 335 from Lakeshore (or equivalent) with cable to connect to cryostat
Product code: [P01491]
Pumping System
Turbo pump with its controller
Product code: [A95050]
Hydraulic Ram
Hollow Ram and the associated oil pump. Maximum oil pressure 200bar.
Product code: [P00473]
Diamond anvil fitted in ring Diamond Anvil
2.5 mm Diacell® design diamond anvils, fitted in BeCu rings for easy fitting in the CryoDAC-LT
Product code : [P00131], [M50011]
Piano Wires
2 mm stainless steel tension wires used in the CryoDAC-LT Drive Unit .
Product code: [M70025]


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