Diacell®Bragg-LT(G) Plus (B-Grade)
X-ray Spectroscopy, Pmax = 100 GPa, Tmin = 4 K, WD = 14 mm, A = 85°
Diacell® Bragg Series
- The Diacell® Bragg-LT(G) Plus uses conical Boehler-Almax anvils, making this cell the true benchmark for high pressure X-ray studies at low temperatures
- The large angle apertures enable diffraction work with high transmission factor and very low background
- The Diacell® Bragg-LT(G) Plus also lends itself to optical experiments at high pressures
- Being a gas membrane driven means that pressure within the cell can be changed whilst the sample is mounted on the X-ray stage, saving considerable time
- Maximum pressures of up to above 100 GPa may be obtained with the Diacell® Bragg-LT(G) Plus
- The DAC can be supplied already integrated to a cryostat
- This is a B-Grade item. -15% discount on the price list. Consult us for more details.
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Specifications
Cell Material | Beryllium Copper Alloy |
Anvil Design | Boehler-Almax |
Anvil Support Plate | Tungsten Carbide |
Pressure Mechanism | Gas Membrane |
Maximum Pressure | > 100 GPa |
Temperature Range | < 10 K |
Top Angle | X-Ray: conical 85º |
Bottom Angle | X-Ray: conical 85º |
Lateral Access | 24° of 2θ is accessible |
Heating | N/A |
Cooling | In Cryostat |
DAC Diameter | 53 mm |
DAC Height | 32 mm |
Working Distance to Sample | 14 mm |
Numerical Aperture | 0.67 |
DAC Weight | 300 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.
Documents
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
Technical Drawing
Please contact us for further details on the engineering drawings.
FAQs
What is the maximum pressure I can achieve with the Bragg-LT(G) Plus and a given culet size?
Culet size (µm) | 200 | 300 | 400 | 500 | 600 | 800 | 1000 |
Bragg-LT(G) Plus Pmax (GPa) (*) | 114 | 98 | 63 | 41 | 28 | 16 | 10 |
(*) 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.
Why can’t I vary the pressure at low temperatures with large culet anvils?
Using large culet anvils might increase pressure at room temperature but often fails at cryogenic temperatures due to friction and restricted piston movement, which prevents meaningful pressure changes. Moreover, at low temperatures, gasket materials like copper become harder and less ductile, inhibiting pressure variation. We recommend using diamond anvils with smaller culet sizes, such as 1.00 or 1.20 mm, for more consistent results at low temperatures. Additionally, frequently varying the pressure, especially in cold conditions, is risky and can damage the anvils, as seen when alternating pressure between 140 bar and 80 bar without significant changes.
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