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Highlights of space sensor developments in Spain

Highlights of space sensor developments in Spain. 1st SPACERAD meeting Brussels, 12 November 2002. The Astroparticle Physics Project at CIEMAT takes over the activities that few members of the HEP group started in 1997 through the participation in the precursor flight for the AMS Experiment

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Highlights of space sensor developments in Spain

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  1. Highlights of space sensor developments in Spain 1st SPACERAD meeting Brussels, 12 November 2002

  2. The Astroparticle Physics Project at CIEMAT takes over the activities that few members of the HEP group started in 1997 through the participation in the precursor flight for the AMS Experiment Since year 2000, CIEMAT is participating in the Construction of the AMS-02 Detector The purpose of the AMS Experiment is to perform accurate and high precision primary cosmic ray measurements in the space. A particle detector will be placed for a 3-year period on the International Space Station (ISS). • The detector will have capabilities to identify the cosmic ray nuclei with Z  20 and to measure their energy spectrum up to the TeV region. • The International Space Station (ISS) is a unique platform for accurate measurements of cosmic rays (low background, infrastructure capabilities) • AMS on the ISS • Orbit altitude 400 km • Power 2 kW • Weight ~ 7 T • Exposure time > 3 years 1st SPACERAD meeting in Brussels, 12 November 2002

  3. Sub-Detector AMS-02 Magnet BL2 0.78 Tm2 Tracker Planes 8 (p) / p 1.5 % TRD & EMC e/p g < 10-6 RICH () /  0.1 % AMS02 Detector Geometrical Acceptance = 0.45 m2 sr Weight ~ 7 T Power 2 kW 1st SPACERAD meeting in Brussels, 12 November 2002

  4. CIEMAT ACTIVITIES • Software development and Analysis • Participation in the AMS02 Construction • Superconducting Magnet Electronics • Cerenkov Counter Detector (RICH) 1st SPACERAD meeting in Brussels, 12 November 2002

  5. HEP Group • Electronics and Automation Laboratory • Superconductivity Group (CEDEX) • Infrastructure • Mechanical Workshops and Electronics Lab. • Characterisation of materials (optics, aging,…) • Assembly room IAC CRISA NTE,sa SPACE FLIGHT ENGINEERING SPANISH COMPANIES SPACE FLIGHT ELECTRONICS SPANISH COMPANIES 1st SPACERAD meeting in Brussels, 12 November 2002

  6. RICH Requirements AMS RICH Collaboration: CIEMAT (Madrid), INFN (Bologna), ISN (Grenoble), LIP (Lisbon), UNAM (Mexico) Cerenkov Radiation Detector Independent measurement of the velocity ( ) of charged particles () /  10-3@  = 1 (protons) • Mass Measurement (resolution  1%) • Measurement of charge for ions with Z < 20 • e+/p separation up to energies 10 GeV • Measurement of light isotope abundance (H/H2/H3, He3/He4, Be10/Be9) 1st SPACERAD meeting in Brussels, 12 November 2002

  7. Radiator • 3 cm of Aerogel (n  1.05) • Np.e. 20 (for Z=1; =1) • thershold 0.953 Reflector • Reduce photon losses • Multilayer Structure deposited on a Carbon Fiber Reinforced Composite (CFRC) Substrate • Photon Detection ~ 700 photomultipliers (Hamamatsu 7600-00-M16) • 4 x 4 mm2 effective area/pixel • Gain ~ 106 @ 800 V • Quantum Efficiency  20 % in the range 250-600 nm • B Field  50 % Effective area • Shielding • Light guides AMS RICH Description • Size: 50 cm height • 160 cm diameter • Weight < 200 Kg • Power ~ 80 Watt 1st SPACERAD meeting in Brussels, 12 November 2002

  8. AMS RICH Assembly Clean Room (CIEMAT) PMT Assembly Unit RICH Prototype HV Power supply prototype (NTE-CAEN) Read-Out design and prototyping (CIEMAT) 1st SPACERAD meeting in Brussels, 12 November 2002

  9. AMS Magnet Electronics MIT CRISA Laboratory Breadboard of Cryomagnet Current Source (CRISA) Lab BB Current Source Modules

  10. CIEMAT Department of Fusion and Particle Physics Electronics and Automation Laboratory Activities: • Electronics within R&D projects • R&D line on radiation detectors • The development of equipment and technologies based on conventional detectors • Applied research on novel detectors, particularly on room temperature semiconductor detectors. 1st SPACERAD meeting in Brussels, 12 November 2002

  11. Radiation Detection Room Temp. Semiconductor Detectors • (1990-1998) CdTe/HgI2 HgI2 • Thick HgI2 detectors. Signal treatment and analysis • Imaging. Gamma camera for industrial application • Experiment in Minisat-I • (1998-2000) CZT • Digital studies on thin (1-2 mm) CZT detectors. • Signal processing (wavelets). • (2000-2002) CZT status: planar devices revealed intrinsic limitations. New designs for large volume high resolution spectrometers. • From Frish grids: coplanar devices • Pixel detectors: 3D sensing 1st SPACERAD meeting in Brussels, 12 November 2002

  12. Radiation Detection Room Temp. Semiconductor Detectors 1st SPACERAD meeting in Brussels, 12 November 2002

  13. Radiation Detection Room Temp. Semiconductor Detectors • Coplanar devices • Spectrometric Characterization • Electrode design • Electrical studies • Monte Carlo simulation • Pixel detectors • Electrical studies · J.M. Pérez, Z. He, D.K. Wehe, Y.F. Du. “Estimate of large CZT detectors absolute efficiency”. To be published at IEEE Transactions on Nuclear Science Vol. August 2002. · J.M. Pérez, Z. He, D.K. Wehe. “Stability and characteristics of large CZT coplanar electrode detectors”. IEEE Transactions on Nuclear Science, Vol. 48, No 3, pp 272-277 , June 2001. . “Current transport in Large Coplanar and Pixel Au-CdZnTe detectors”. J.M. Pérez. Sent to publication at Nuclear Instruments and Methods in Phisics Research A on May 2002 1st SPACERAD meeting in Brussels, 12 November 2002

  14. Radiation Detection Room Temp. Semiconductor Detectors On going proposals: 1. Development of epitaxial structures of compound semiconductors formed by elements with high atomic number • Collaboration agreement contract with Microelectronics National Center (CSIC) • Research focused to Nuclear Medicine • Funding pending 2. Characterization and design of new generation sensors based on CZT for environmental applications • Applied research on coplanar detectors • Collaboration with the University of Michigan • Research focused for Environmental and Decommissioning Industries • Funded by MCYT-Spain (TIC2002-02367) 1st SPACERAD meeting in Brussels, 12 November 2002

  15. Radiation Detection Room Temp. Semiconductor Detectors 3. EuroMedIm. Expression of Interest for the 6th EC Framework Programme • A large number of European institutions aimed at developing prototype diagnosis instrumentation for medical to be transferred toi the European Industry 1st SPACERAD meeting in Brussels, 12 November 2002

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