Dr Sergey Senyukov - "Design of the ALICE Inner Tracking System then and now: technological evolution"

par Dr Serhiy Senyukov (CERN)

vendredi 11 mars 2016, 14:00 → 16:00 Europe/Paris

Mondrian (IPHC, bât 25)

23 years ago on the 1st March 1993, a "Letter of Intent for A Large Ion Collider Experiment" was published at CERN. The experiment has been conceived to study the strongly-interacting matter at extreme energy densities leading to the formation of a new phase of matter, the Quark-Gluon Plasma. Such a study relies on multiple observables. Therefore it requires a sophisticated and complex detector apparatus to measure them. One of the main tasks of the Inner Tracking System (ITS) of the ALICE detector is to locate the decay vertices of heavy particles created in the collision. This task requires reconstructing particle tracks with an excellent spatial precision. Thus it calls for the use of the state of the art silicon detectors. The detector design should make the best use of the detector technologies available to satisfy the physics performance requirements taking in consideration experimental conditions: event rates, radiation levels; and optimizing the overall construction cost.

The aim of the seminar is to review and compare the designs of the ITS and ITS Upgrade from the prospective of the technological evolution in silicon detector technologies in the past 20 years.

Transparents Design_of_the_ALICE_ITS_then_and_now.pdf