BETSA — Nangis, France

Wave Fit — High Pressure Toolbox

Calculators and reference tools for diamond anvil cell experiments. A practical companion for technicians, researchers, engineers and students — and for anyone learning about diamond anvil cells.

▶ Open Wave Fit

Tools & calculators

R1 fluorescence → P (Ruby2020)

Deviatoric stress from R1–R2 splitting

F_2g shift → P to 410 GPa

BM3 EOS & standards Au, Pt, NaCl…

λ ↔ eV ↔ cm⁻¹ ↔ keV

Converter K / °C / eV / cm⁻¹

2D & 3D pressure mapping in the chamber

T-insensitive LH-DAC pressure gauge

Bragg 2θ ↔ d, all crystal systems

Gaskets & Hardness

HV / HRC / HRB / HBW / HK (ASTM E140)

LH-DAC power density & spectroradiometry

Interactive IR → X-ray spectrum for DAC

Types, geometries, IR transmission & P limits

Culet parallelism by interference fringes

Uncertainty σ(P)

Combined error propagation across the 4 gauge families

Background & reference — standalone pages

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Step-by-step diamond anvil cell protocol — experiment notebook

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P-T Phase Diagrams

Pressure–temperature phase diagrams of common materials

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High-Pressure History

A worldwide scientific adventure since 1905 — timeline & milestones