Accession Number : AD0659375

Title :   A COUNTER FOR THE MEASUREMENT OF THE ATMOSPHERIC AND EARTH LEAKAGE FLUX OF SECONDARY COSMIC RAY NEUTRONS,

Corporate Author : MILAN UNIV (ITALY) ISTITUTO DI SCIENZE FISICHE

Personal Author(s) : Ballerini,R. ; Boella,G. ; Igiuni,A. ; Inzani,P. ; Scarsi,L.

Report Date : 15 MAY 1967

Pagination or Media Count : 43

Abstract : A detailed description is given of a neutron counter employed in a combined balloon and rocket experiment, in which the integrated flux of neutrons of energy up to about 20 MeV has been measured as a function of atmospheric depth from 0.1 to 800 gr/sq cm residual pressure. The construction of the Boron-plastic scintillator detector and its operation in phoswich with a plastic scintillator, which suppresses charged-particle background, are discussed. Complete circuit diagrams of the counter electronics and telemetry transmission are given, and the mechanical solutions of the environmental problems involved in the rocket launch are fully described. (Author)

Descriptors :   (*COSMIC RAYS, NEUTRONS), (*NEUTRON COUNTERS, COSMIC RAYS), (*ATMOSPHERIC SOUNDING, NEUTRON COUNTERS), UPPER ATMOSPHERE, SOUNDING ROCKETS, BALLOONS, WIRING DIAGRAMS, EXPERIMENTAL DESIGN, SCINTILLATION COUNTERS

Subject Categories : Atmospheric Physics
      Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE