Preliminary results of the CAKE experiment

S. Cecchini, G. GiacomelliPhysics Dept. , INAS and INFN Sez. Bologna, Italy

Russian-Italian Cooperation Workshop on CR and Astroparticle Physics

Moscow, Oct 17-20, 2005

FIP Vol

1 part/m2h

1 part/m2 day

High charge resolutionHigh statistics: large collecting area + long exposure

CRSources

?

CAKE is a prototype for demonstrating the feasibility of the full analysis chain

The CAKE experiment : A~ 2 m2sr for Fe nuclei

~1500 km

38 km plafond altitudeResidual atmosphere 3.2g/cm2

Flight duration 18h

Relativistic charged particle

Low-energy stopping particle

Top layer

Middle

Bottom

Tracking algorithmAlignment referenceholes

Charge spectrum of 1409 events from the measurements of 15% areaData (black dots) with statistical errors are compared to a MonteCarlo Simulation (histogram)

Preliminary - 2051 events

• Recovery• Large area• Long exposure

LDB15-40days

3 months