Measurements on extensive air showers at mountain altitudes at the geomagnetic equator

Journal Article · Tue Jan 01 04:00:00 EST 1957 · Physica

DOI:https://doi.org/10.1016/S0031-8914(57)95665-3· OSTI ID:4324428

Jongejans, B.; Schurink, F.

Counter measurements on extensive air showers were performed at an atmospheric depth of 600 g cm/sup -2/ and 700 g cm/sup -2/ the Peruvian Andes, corresponding to respectively 4540 and 3250 meter altitude. Three and sixfold coincidences obtained from courter arrays with different sensitive area were compared. The coefficient g of the inverse power law differential spectrum relating the relative occurrence of a shower to its density was determined. A deviation from the generally accepted theory is found, the constant g varying from 2.27 plus or minus 0.04 to 2.48 plus or minus 0.03 depending on its method of determination. The extension of the setup used for obtaining these values of g varied from 1.6 to 3 m. Results obtained with a different setup (distances up to 100 m) are also given, g increasing from 2.5 plus or minus 0.1 to 3.2 plus or minus 0.2 when the extension of the setup was increased from 5 to 98 m. The absorption lengths obtained from these experiments show a decrease from 138 plus or minus 5 g cm/sup -2/ to 45 plus or minus 3 g cm/sup -2/ with increasing shower size.

• Research Organization: Originating Research Org. not identified
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-002989
• OSTI ID: 4324428
• Journal Information: Physica, Journal Name: Physica Journal Issue: 6-10 Vol. 23; ISSN 0031-8914
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
COINCIDENCE METHODS
CONFIGURATION
COSMIC RADIATION
COUNTERS
EARTH
EXTENSIVE AIR SHOWERS
GEOMAGNETIC EQUATOR
LEVELS
MAGNETIC FIELDS
MEASURED VALUES
PHYSICS
SCATTERING
SPECTRA
VARIATIONS