“…The samples of dimethyl selenium (6-20 Torr)-SF 6 (6-24 Torr) and of dimethyl selenium (10 Torr)-SF 6 (30 Torr)-D 2 (20 Torr) were irradiated in a reactor [18] (volume: 140 ml) which was equipped with a sleeve with rubber septum and PTFE valve, and consisted of two orthogonal positioned Pyrex tubes (both 3 cm in diameter, one 9 cm and the other 13 cm long) fitted with KBr windows.…”