The current massive targets are made from sintering a layer of Tungsten-Rhenium (WRe) on a massive TZM body (Titanium, Zirconium, Molybdenum). A graphite disk brazed to the backside allows efficient heat dissipation.

ACERDE performs a Tungsten-Rhenium deposition straight on graphite or C-C composite (only the insert part is TZM).

 The high temperature chemical vapor deposition (HTCVD)

The light rotating anodes' key innovation is the thin Tungsten-Rhenium (WRe) deposition using the CVD deposition method.

ACERDE perfectly controls the CVD technology on both graphite and composite substrates, allowing the Tungsten-Rhenium interface to be stable.

Thanks to the CVD technology, the ACERDE targets have a heat capacity than usual massive TZM targets (Titanium, Zirconium, Molybdenum).

Thermodynamics

With T > 400°C, WF₆ + 3H₂ → W + 6HF

Kinetics

Rate = constant . e^-Ea/KT . [P_WF6]⁰ . [P_H2]^1/2

Rate = d_thickness / d_time

Patented specific insert

To better meet the global X-Ray tubes key players' requirements, ACERDE patented a specific insert method to mount its targets with every existing tube stem configuration.