In this paper, the relationships between the thickness and the optical absorption of photocathode and the escape depth of photoelectron are discussed.

Not only is the escape shaft ready, but the special capsule that was sent down to rescue the men has been tested to a depth of 610 metres, and the Mining Minister Laurence Golborne says all went well.

Objective to investigate the effects of great depth air breathing fast buoyancy ascent on the human body, to develop and verify the submarine escape profile and medical support measures.