| 摘要 |
A gas laser, in particular an ion laser, with a discharge tube arranged between a cathode and an anode, in which the tube is supported with the aid of several discs in a gas-filled support tube (3). The support tube is surrounded by an outer tube (8) and through the outer space formed thereby flows a cooling means. To achieve effective cooling of the discharge tube, the outer space (10) is split into several sectors running in an axial direction, and the support discs (4, 18, 19) contain channels (11) for the passage of the cooling means, the input and output openings of which (9, 12) each open into a corresponding sector of the outer space. During operation of the laser, the cooling means flows simultaneously and parallel through all of the support discs spread over the entire discharge tube and thus effects a rapid and effective cooling of the discharge tube. The cooling means circulates advantageously in a closed coolant circuit, which comprises a thermostat for adjusting the temperature of the cooling means. |
