Author/Authors :
Ardashev، نويسنده , , E.N. and Boguslavsky، نويسنده , , I.V. and Gramenitsky، نويسنده , , I.M. and Kamkin، نويسنده , , E.D. and Khmelnikov، نويسنده , , V.A. and Khrenov، نويسنده , , Yu.V. and Kireev، نويسنده , , V.I. and Kotova، نويسنده , , A.I. and Kravtsov، نويسنده , , V.D. and Levitsky، نويسنده , , M.S. and Malyaev، نويسنده , , V.Kh. and Mitrofanov، نويسنده , , G.Ja. and Moiseev، نويسنده , , A.M. and Parshin، نويسنده , , E.A. and Popov، نويسنده , , A.I. and Pleskatch، نويسنده , , A.V. and Samsonov، نويسنده , , V.A. and Selivanov، نويسنده , , G.I. and Solomko، نويسنده , , V.N. and Tolmachev، نويسنده , , V.T. and Shirokov، نويسنده , , A.A. and Ustenko، نويسنده , , E.P. and Vishniakov، نويسنده , , I.A.، نويسنده ,
Abstract :
A precision liquid hydrogen bubble chamber with rapid cycling capability and a photographed volume of 150 × 70 × 50 mm3 has been constructed to study short-living elementary particles. Its refrigeration system is operated with liquid helium. The chamber body, manufactured from the polycarbonate Lexan®, is almost free of vibrations due to the innovative expansion system with two pistons operating in opposite directions. The chamber operates with 5 ms cycle time and a rate up to 30 s−1. The chamber has already been cycled 6.7 million times and about 0.3 million pictures have been taken. At the hydrogen temperature of 29.8 K a track density of 150 bubbles/cm has been achieved with bubble diameters of 25 μm.
