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DPG

München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 97: Kosmische Strahlung 5

T 97.3: Vortrag

Mittwoch, 11. März 2009, 17:15–17:30, M118

Primary energy spectrum from the S(500) observable recorded with KASCADE-Grande — •Gabriel Toma — IFIN-HH, Str. Atomistilor no.407, P.O.BOX MG-6, Bucharest - Magurele, ROMANIA

Studies have shown that for a particular EAS detector array the charged particle density at a given distance from shower core becomes independent of the primary mass and thus it can be used as a primary energy estimator. The particular distance for which this effect takes place is a characteristic of the array and in the case of the KASCADE- Grande it was shown to be 500 m. A Linsley parameterization has been used to describe the lateral particle density distribution of de- tected showers and to estimate the charged particle density at 500 m distance from shower core - S(500). The Constant Intensity Cut (CIC) method was applied to correct S(500) for attenuation. A calibration of S(500) with primary energy has been derived from simulated studies and used to construct a preliminary primary energy spectrum from the S(500) spectrum.

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