Accession Number : AD0616890

Title :   NEUTRON FLUX MEASUREMENTS DURING JANUARY AND FEBRUARY 1964,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

Personal Author(s) : Gauger,Joleroy

Report Date : MAR 1965

Pagination or Media Count : 106

Abstract : Data relating to the secondary cosmic ray rates measured at aircraft altitudes over an extended geophysical area are presented in detail. Data gathered on two flights (20 January 1964 and 12 February 1964) yielded determinations of the position of the cosmic ray equator along the 40 degrees N and 69 degrees W longitude lines at 1/2 degree = 1N and 10 degrees = 2S respectively. The experimental values compare favorably with the predictions of Shea and Smart. On 27 and 29 January 1964 extended range flights to 73 degrees S latitude provided data pertinent to an evaluation of the position of the south latitude polar plateau. An anomalous neutron flux increase on 21 January 1964 accompanied by an increase in night air glow intensity (5577 A) is related. The summed data over northern and southern hemispheres allow a comparison of several rigidity models. From the comparison it is apparent that the Makino treatment defines the latitude effects noted better than do the models of Quenby-Webber, Quenby-Wenk, or a rigidity model based on the McIlwain L parameter. (Author)

Descriptors :   (*COSMIC RAYS, NEUTRON FLUX), (*NEUTRON FLUX, COSMIC RAYS), (*ATMOSPHERIC SOUNDING, NEUTRON FLUX), GEOPHYSICS, SOUTH AMERICA, AIRCRAFT, RADIATION MEASURING INSTRUMENTS, NUCLEAR PHYSICS, GRAPHICS, TABLES(DATA)

Distribution Statement : APPROVED FOR PUBLIC RELEASE