ANALYTICAL AND LIMITED EXPERIMENTAL STUDY OF THE MECHANISMS OF PENETRATION AND LIGHT EMISSION FOR MICROMETEORITE IMPACT OF AN ALUMINUM-COATED PHOTOMULTIPLIER. QUARTERLY PROGRESS REPORT NO. 3, FOR THE PERIOD APRIL 1, 1961 THROUGH JUNE 30, 1961
Penetration and light emission for micrometeorite impact of an aluminum-coated photomultiplier