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AMS-01 & - 02 Investigating charged cosmic rays outside the atmosphere

Particle Physics in Space.

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AMS-01 & - 02 Investigating charged cosmic rays outside the atmosphere

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  1. ParticlePhysics in Space • AMS is a very complex particle physics detector installed at the ISS. Its goal is to investigate the components of the charged cosmic ray with unprecedented precision. AMS-01 was a prototype detector flying in Space Shuttle mission STS-91 (1998) as a proof of concept. After long delay of the ISS, a highly improved AMS-02 was installed at the ISS in 2011 and is successfully taking data since then. It is planned that AMS-02 will take data as long as the ISS is operational. • 1998 & since 2011 • UNIGE and ETHZ contributed significantly to the tracker system and also to the magnet. • The tracker consists of several layers of • double-sided Si microstrip detectors. The • majority of the ladders for AMS-01 and • AMS-02 were produced by UNIGE and ETHZ. • ETHZ also contributed the high precision support structure for the • AMS-01 tracker. This was later modified by UNIGE for AMS-02. • The exact field of the permanent magnet • for AMS-01 was measured by ETHZ. • For AMS-02, a superconducting magnet • was constructed. ETHZ contributed the • superconducting cables and worked • on the cryocooler electronics. • When it was decided to significantly extend the AMS-02 operation • time, it was necessary to switch back to the permanent magnet. • Assembly of the full AMS-01 • was done at ETHZ … • … and for AMS-02 at CERN • CERN is also hosting the main • operation center for AMS-02. AMS-01 & -02Investigatingchargedcosmic raysoutside the atmosphere Alpha Magnetic Spectrometer (AMS) for the International Space Station (ISS) Tracker Magnet Assembly

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