I. TIME VARIATIONS IN COSMIC RAYS. II. CHARACTERISTICS OF EXTENSIVE AIR SHOWERS. Final Progress Report

Technical Report · Fri Jan 01 00:00:00 EST 1960

OSTI ID:4819585

Escobar, I V

Cosmic-ray variations prior to the onset of the Forbush event, during the main phase of the decrease,' and while the intensity was recovering were studied. The different methods and equipment in operation at Chacaltaya for studying the cosmic-ray intensity are described. Unusual phenomena in association with Forbush decreases is discussed, Studies of some exceptional cases of Forbush decreases which showed a difference in onset times are presented. Eleven detectors used to study extensive air showers and their operation at El Aito are descrlbed. The density spectrum of showers detected at El Alto and experimental results concerning the lateral distribution, slze, spectrum, and the celestlal arrival directions of showers are given. (M.C.G.)

• Research Organization: Universidad Mayor de "San Andres," La Paz, Bolivia. Laboratoria de Fisica Cosmica de Chacaltaya
• DOE Contract Number: AF49(638)-290
• NSA Number: NSA-16-018291
• OSTI ID: 4819585
• Report Number(s): AFOSR-1545
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: United States
• Language: English

Related Subjects

PHYSICS
ANGULAR DISTRIBUTION
ATMOSPHERE
CHACALTAYA
COSMIC RADIATION
COUNTERS
DETECTION
DISTRIBUTION
ENERGY
EXTENSIVE AIR SHOWERS
FORBUSH DEPRESSION
INSTRUMENTS
LABORATORY EQUIPMENT
LATTICES
MEASURED VALUES
MODULATION
SCATTERING
SUN
VARIATIONS