Accession Number : AD0619508

Title :   A STUDY OF THE ATMOSPHERIC EFFECTS ON COSMIC RAY RECORDS FROM PLASTIC SCINTILLATION MONITORS AT UPPSALA.

Descriptive Note : Scientific rept.,

Corporate Author : UPPSALA UNIV (SWEDEN)

Personal Author(s) : Ekstrom,L.

Report Date : 15 APR 1965

Pagination or Media Count : 17

Abstract : Atmospheric effects on cosmic ray records from the new plastic scintillation monitors at Uppsala have been studied according to modified Duperier (A. Duperier. The meson intensity at the surface of the earth and the temperature at the production level. Proc. Phys. Soc. A62:684 (1949)) and Dorman (L. I. Dorman. Cosmic ray variations. Translation prepared by Technical Documents Liaison Office, Wright-Patterson AFB, 1957) models. Pressure coefficients are found for the vertical as well as the inclined directions. The two models are investigated partly by an 'ordinary' or 'direct' method and partly by a 'successive difference' method. A significant difference between the results from the two methods is found specially in the Dorman case. The serial correlation of the residuals has been tested with a statistic d introduced by Durban and Watson, 1951. This test seems to point out that the 'difference' method is more favourable and gives more reliable results from a statistical point of view. (Author)

Descriptors :   (*COSMIC RAYS, RADIATION MEASURING INSTRUMENTS), (*SCINTILLATION COUNTERS, COSMIC RAYS), BAROMETRIC PRESSURE, TEMPERATURE, STATISTICAL ANALYSIS, GEOPHYSICS, SWEDEN

Distribution Statement : APPROVED FOR PUBLIC RELEASE