BARS apparatus

BARS (or "split sphere") is a high-pressure high-temperature apparatus usually used for growing or processing minerals, especially diamond. The name is a transliteration of a Russian abbreviation БАРС = Беспрессовая Аппаратура высокого давления "Разрезная Сфера" (press-free high-pressure setup "split sphere"). Typical pressures and temperatures achievable with BARS are 10 GPa and 2500°C.