Tracking the CERN-SPS high intensity heavy ion beam with silicon microstrips operated at cryogenic temperatures

by Luca Casagrande (CERN)

Friday 29 Jun 2001, 11:00 → 12:00 Europe/Zurich

13/2-005 (CERN)

The RD39 Collaboration has shown that standard silicon detectors operated at cryogenic temperatures are fully operational up to radiation doses, which are more than ten times higher than is possible at or close to room temperature. Based on these results, we have developed a new heavy ion beam hodoscope, named Beamscope, consisting of four planes of silicon microstrip detectors operated at 130K. The Beamscope design has been optimised for use in the NA60 experiment, where it will significantly improve the capability of measuring charm production in heavy ion collisions. After having described the novel aspects in the detector design, I will present results from tests with the CERN-SPS high intensity Pb beam. The beam profile was measured on-line with 50 micron resolution. We were able to measure the transverse coordinates of each incoming ions with 20 micron precision up to a beam intensity of 10^7 ions per second. The detector was successfully operated up to a total dose of about 90 Grad.

Organiser(s): Ariella Cattai / EP Division

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