4 Conferences false [["minutes", "Minutes"], ["1", "More information about the venue"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] ICN-UNAM 1482bc95ee34f0461176da21871284c8 3 icrc2007@icrc2007.unam.mx The 30th International Cosmic Ray Conference will be held from July 3, 2007 to July 11, 2007 in Merida, Yucatan, Mexico. True Merida, Mexico

2007-07-03T08:00:00 2007-07-11T19:00:00 2005-09-26T05:04:53 2024-04-12T17:46:55 Mexico/General IGeof-UNAM 40af9343b8bb9d18708b4f0252d5f53c 1122 false [["minutes", "Minutes"], ["1", "More information about the venue"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]] 071 (4A) HE.2.5 1 Poster Institute for Nuclear Research of the Russian Academy of Sciences 7c7bd199074b8d9a6d56d11aec28efa5 Institute for Nuclear Research of the Russian Academy of Sciences 7c7bd199074b8d9a6d56d11aec28efa5 D.V. Skobeltsyn Institute of Nuclear Physics, Moscow State University d19229809e964149bebac46c1e0dee8e Joint Institute of Nuclear Research, Dubna, Moscow region d6064172187e26cc3feeedbc2b41c9bc Joint Institute of Nuclear Research, Dubna, Moscow region 4223d358be043764939f84496097ffa3 "Zecotek" Company, Singapore a988ae0875469e936e0f849a090ee3fd Merida, Mexico

Regency (Hyatt) 2007-07-09T14:45:00 2007-07-09T14:45:00 In 80th a new type of APDs with negative local feedback which significantly reduces the excess noise factor introduced by the avalanche process - the metal-resistive layer-semiconductor (MRS) APDs - were developed in INR (Moscow) by Sadygov et al. in the frameworks of the Soviet DUMAND program led by M.A. Markov. In 90th and during a few last years some new kinds of the Micro-pixel Avalanche PhotoDiodes (MAPDs), which have high signal gain (up to 10^6), were developed in INR and JINR (Dubna, Moscow region). The novel MAPDs with high photon detection efficiency and very good single electron resolution which were produced and tested by "Dubna APD" collaboration (JINR - INR - IP AZ - "Zecotek" Company - "Mikron" factory) are described. Sensitive area of a MAPD-------------------------- 1 mm^2, 4 mm^2 and 9 mm^2; Spectral range of sensitivity --------------------- 250-650 nm; Photon detection efficiency (max.) ------------- 20-30 %; Operating voltage ----------------------------------- ~100 V. The excellent parameters of MAPDs are achieved due to forming an electric field with a specific geometry in the multilayer silicon structure, which ensures the localization of the avalanche processes and limits them to the micro regions (micro-pixels) with a diameter of 3 - 30 micron depending of the design. The multi channel modules of a mosaic type on the basis of MAPDs with the above mentioned (and improved!) parameters have a high potential for using as key elements for light detection in fields of Astronomy, Cosmic Ray Physics and Astroparticle Physics. Application of MAPDs in space imaging detectors observing the UV flashes in the atmosphere caused by ultra high energy cosmic ray particles (and other phenomena) is of special interest. paper doc http://indico.nucleares.unam.mx/images/word.png word file ppt http://indico.nucleares.unam.mx/images/powerpoint.png powerpoint file pdf http://indico.nucleares.unam.mx/images/pdf_small.png pdf file odt http://indico.nucleares.unam.mx/images/writer.png writer file odp http://indico.nucleares.unam.mx/images/impress.png presentation file ods http://indico.nucleares.unam.mx/images/calc.png spreadsheet file other http://indico.nucleares.unam.mx/images/file_small.png unknown type file link http://indico.nucleares.unam.mx/images/link.png link 1 http://www.icrc2007.unam.mx/ link http://www.icrc2007.unam.mx/ doc http://indico.nucleares.unam.mx/images/word.png word file ppt http://indico.nucleares.unam.mx/images/powerpoint.png powerpoint file pdf http://indico.nucleares.unam.mx/images/pdf_small.png pdf file odt http://indico.nucleares.unam.mx/images/writer.png writer file odp http://indico.nucleares.unam.mx/images/impress.png presentation file ods http://indico.nucleares.unam.mx/images/calc.png spreadsheet file other http://indico.nucleares.unam.mx/images/file_small.png unknown type file link http://indico.nucleares.unam.mx/images/link.png link