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A fast ionization chamber for the study of fusion reactions induced by low-intensity radioactive ion beams.

Colucci G., Stefanini A.M., Montagnoli G., Corradi L., Fioretto E., Galtarossa F., Goasduff A., Mazzocco M., vColovi'c P., Scarlassara F., Strano E., Szilner S.
  Venerdì 15/09   15:30 - 18:30   Aula A208   I - Fisica nucleare e subnucleare
The detection of evaporation residues produced with low-intensity radioactive ion beams requires detection systems with efficiency close to 100%. In this perspective the set-up in LNL employed for fusion measurements has been upgraded by using a new ionization chamber, which ensures a high count rate particle identification for fusion studies involving low-intensity exotic beams. The new detector reduces the response time by adopting a series of tilted electrodes so that it can withstand rates up to hundreds of kHz. A first test with stable beams has been performed successfully and further tests are programmed to optimize the performances.