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Diacell® µScopeDAC-HT(G) Plus

Raman and FTIR µSpectroscopy,  Pmax = 50 GPa, Tmax = 900 K, WD = 12 mm, A = 100°

Diacell μScopeDAC Series

  • The Diacell® μScopeDAC-HT(G) Plus is fitted with asymmetrical Boehler-Almax diamond anvils design which enable a dual large aperture for X-ray and optical measurements
  • Maximum pressures of up to above 50 GPa are obtained with the Diacell® μScopeDAC-HT(G) Plus
  • Fitted with type IIas ultra-low fluorescence & ultra-low birefringence diamond anvils the cell is ideal for Infrared and Raman microscopic sample analysis
  • The DAC is equipped with an internal compact gasket heater that enables research up to 900 K
  • The gas membrane is particularly suitable for high-temperature operation as it is easy to compensate for any pressure change due to heating

SKU: A63200

For more info, quotation or call: Contact us


The Diacell® μScopeDAC-HT(G) Plus, gas membrane driven, high-temperature, diamond anvil cell, meets the growing need to reach very high pressures and be compatible with the optical and physical constraints of microscopes. It is suitable for optical work under FTIR and Raman microscopes and has an internal gasket heater that operates to 900 K. The cell is supplied fitted with a K-type thermocouple and is suitable for water cooling.

The μScopeDAC-HT(G) Plus is only 23 mm in height and with a 12 mm working distance. Fitted with asymmetrical Boehler-Almax design diamond anvils this DAC provides the user with large opening angles. By using a 4.2 mm diameter anvil the top opening is 95° for both Optical and X-ray experiments. The bottom part is fitted with a 2.5 mm diameter anvil, that will still keep the advantage of a large optical aperture (100°) but is narrowing the X-ray aperture to 41°.

Due to its small physical dimensions, the Diacell® μScopeDAC-HT(G) Plus is compatible with most, if not all, commercial Raman and FTIR systems.


A large and increasing percentage of optical and spectroscopic observations is now made using microscopes. In particular, Raman instruments are commonly sold with integral microscopes to enable efficient scattered light collection, as well as to permit Raman mapping of complex samples. Similarly, FTIR spectrometers are often supplied with reflecting (Cassegrain) microscopes. The Diacell® μScopeDAC-HT(G) Plus is particularly suited for such applications.


Cell Material AISI 440C
Anvil Support Plate Tungsten Carbide
Pressure Mechanism Gas Membrane
Maximum Pressure 50 GPa
Temperature Range 900 K
Top Angle Conical 95º
Bottom Angle Conical 100º (Optical), 41° (X-ray)
Lateral Access N/A
Heating Internal gasket heater
Cooling Water cooled
DAC Diameter 60 mm
DAC Height 23 mm
Working Distance to Sample 12 mm
Numerical Aperture 0.74
DAC Weight TBC

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 uScopeDAC-HT(G) Plus

Technical Drawing

Please contact us for further details on the engineering drawings.

Spares, Accessories and Options

Our diamond anvil cells are aligned and mechanically 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.

Diamond Anvils
2.5 mm Boehler Almax design diamond anvil
Product code: [P01207]
Diamond Anvils
4.2 mm Boehler Almax design diamond anvils
Product code: [P01202]
Anvil Support Plate
Tungsten carbide (H10F) Conical 100°, 14mm
Product code: [P01212]
Anvil Support Plate
Tungsten carbide (H10F) Conical 95°, 14mm
Product code: [P01211]
Gasket Heater
Gasket heater suitable for the μScopeDAC-HT(G) Plus
Product code: [TBC]
Gas Membrane
Gas membrane suitable for the Diacell® μScopeDAC-HT(G) Plus
Product code: [A76040]
Programmable Power Supply
PS-03- Keithley/Temperature Reader including Labview based program
Product code: [A75060]
Gasket Blanks
10 mm diameter / 0.26 mm thick Inconel gasket blanks
Product code: [P02214]


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