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Diacell® µScopeDAC-HT(S)

Raman and FTIR µSpectroscopy,  Pmax = 50 GPa, Tmax = 900 K, WD = 12 mm, A = 51°

Diacell μScopeDAC Series

  • The Diacell® μScopeDAC-HT(S) is compatible with commercially available spectroscopic microscopes
  • Maximum pressures of up to above 50 GPa are obtained with the Diacell® μScopeDAC-HT(S)
  • The DAC is equipped with an internal compact gasket heater that enables research up to 900 K
  • A combination of left - and right - handed screws makes sure that there in no net torque on the cell as pressure is applied
  • Fitted with type IIas ultra-low fluorescence & ultra-low birefringence diamond anvils the cell is ideal for Infrared and Raman microscopic sample analysis

SKU: A62000

For more info, quotation or call: Contact us


The Diacell® μScopeDAC-HT(S), manually-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. Temperatures up to above 900 K and pressures up to above 50 GPa are achievable.

The Diacell® μScopeDAC-HT(S) is just 25 mm thick along the optical axis and is symmetrical about the sample. Thus, the physical distance from the objective to the sample between the diamond anvils is just 12 mm. This makes the Diacell® μScopeDAC-HT(S) 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(S) is ideal for such applications.


Cell Material AISI 440C
Anvil Support Plate Tungsten Carbide
Pressure Mechanism Screw driven (RH and LH bolts)
Maximum Pressure 50 GPa
Temperature Range 900 K
Top Angle Conical 51º
Bottom Angle Conical 51º
Lateral Access N/A
Heating Internal gasket heater
Cooling Water cooled
DAC Diameter 60 mm (without any connections)
DAC Height 25 mm
Working Distance to Sample 12 mm
Numerical Aperture 0.44
DAC Weight 400 g

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-HTS

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 Diacell® design diamond anvils
Product code: [P00131]
Diamond anvils rings
Anvils rings suitable for the μScopeDAC-HT(G)
Product code: [M50004], [M50012]
Anvil Support Plate
Tungsten carbide seat with 52° opening angle
Product code: [P00126]
Gasket Heater
Gasket heater suitable for the μScopeDAC-HT(G)
Product code: [A63101]
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]


What is the maximum pressure I can achieve with the μScopeDAC-HT(S) and a given culet size?

Culet size (µm) 200 300 400 500 600 800 1000
Pmax (GPa) (*) N/A 74 48 31 21 12 8

(*) The Pmax values are only indicative. The maximum pressure achievable with a DAC is influenced by many others experimental parameters, like the gasket characteristics (material, thickness and hole size) or the pressure transmitting medium.


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