The DArk Matter Particle Explorer (DAMPE) is a high energy astroparticle satellite mission designed to detect electron, photon and cosmic rays with high precision for Dark Matter search, cosmic ray flux and composition measurement and gamma-ray astronomy. One of the key components of the DAMPE payload is the Silicon-Tungsten Tracker (STK), consisting of 6 tracking planes, each plane is made of 2 orthogonal layers of single-sided silicon micro-strip detectors. Three layers of 1 mm thick tungsten plates are interleaved with the tracking planes to serve as photon converter. Besides precise track reconstruction for charge particles and converted photons, the STK will also measure the charge of the incoming cosmic ray, and provide pre-shower information to improve particle identification. After intensive design, prototyping, test and production efforts by the STK collaboration, the construction of the STK has been completed. An Engineering and Qualification Model (EQM) has been produced in April 2014 and passed space qualification tests, as well as extensively tested at with particle beams at CERN. The Flight Model (FM) has been produced in April 2015 and successfully integrated into the DAMPE payload in June 2015, after passing the environmental acceptance test. The DAMPE satellite is scheduled to be launched at the end of 2015.
The silicon-tungsten tracker of the DAMPE mission
Bernardini P.;De Mitri I.;Marsella G.;
2015-01-01
Abstract
The DArk Matter Particle Explorer (DAMPE) is a high energy astroparticle satellite mission designed to detect electron, photon and cosmic rays with high precision for Dark Matter search, cosmic ray flux and composition measurement and gamma-ray astronomy. One of the key components of the DAMPE payload is the Silicon-Tungsten Tracker (STK), consisting of 6 tracking planes, each plane is made of 2 orthogonal layers of single-sided silicon micro-strip detectors. Three layers of 1 mm thick tungsten plates are interleaved with the tracking planes to serve as photon converter. Besides precise track reconstruction for charge particles and converted photons, the STK will also measure the charge of the incoming cosmic ray, and provide pre-shower information to improve particle identification. After intensive design, prototyping, test and production efforts by the STK collaboration, the construction of the STK has been completed. An Engineering and Qualification Model (EQM) has been produced in April 2014 and passed space qualification tests, as well as extensively tested at with particle beams at CERN. The Flight Model (FM) has been produced in April 2015 and successfully integrated into the DAMPE payload in June 2015, after passing the environmental acceptance test. The DAMPE satellite is scheduled to be launched at the end of 2015.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
