Author/Authors :
Arefiev، نويسنده , , A and Bencze، نويسنده , , Gy.L and Bizzeti، نويسنده , , A and Choumilov، نويسنده , , E and Civinini، نويسنده , , C and Dalla Santa، نويسنده , , F and DʹAlessandro، نويسنده , , R and Ferrando، نويسنده , , A and Fouz، نويسنده , , M.C and Herve، نويسنده , , A and Iglesias، نويسنده , , A and Ivochkin، نويسنده , , V and Josa، نويسنده , , M.I and Maggi، نويسنده , , F and Malinin، نويسنده , , A and Meschini، نويسنده , , M and Pojidaev، نويسنده , , V and Radermancher، نويسنده , , E and Salicio، نويسنده , , J.M، نويسنده ,
Abstract :
The baseline option for the very forward calorimetry in the CMS experiment is an iron/gas calorimeter based on parallel plate chambers. A small prototype module of such a calorimeter, has been tested using electrons of 5 to 100 GeV/c momentum with various high voltages and two gases: CO2 (100%) and CF4CO2 (8020), at atmospheric pressure. The collected charge has been measured as a function of the high voltage and of the electron energy. The energy resolution has also been measured. Comparisons have been made with Monte-Carlo predictions. Agreement between data and simulation allows to make an estimation of the expected performance of a full size calorimeter.
