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작성일 :      2017-08-28
이메일 :     physicsbk@knu.ac.kr 조회수 :     66
홈페이지 :      아이피 :     ***.***.***.***
글제목 :     JEM-EUSO prototypes for the detection of ultra-high-energy cosmic rays (UHECRs): from the electronic
 
p 제목: JEM-EUSO prototypes for the detection of ultra-high-energy cosmic rays (UHECRs): from the electronics of the photo-detection module (PDM) to the operation and data analysis of two pathfinders

p 연사: 정애라 박사

         (Université Paris Diderot, France & Tsinghua University, China)

p 일시: 2017년 8월 30일 (수) 오후 4:30

p 장소: 제1과학관 119호

p 요약:

The JEM-EUSO (Extreme Universe Space Observatory on-board the Japanese Experiment Module) international space mission is designed to observe UHECRs by detecting the UV fluorescence light emitted by the so-called Extensive Air Shower (EAS) which develop when UHECRs interact with the Earth's atmosphere. While this "fluorescence technique" is routinely used from the ground, by operating from space, JEM-EUSO will, for the first time, provide high-statistics on these events.  In preparation for JEM-EUSO is a set of pathfinder experiments with a common set of electronics, consisting of one Photo-detection Modules (PDMs) identical to the 137 that will be present on the JEM-EUSO focal surface. In this presentation, I will describe each instrument, present the details of the design and the fabrication of the PDM and PDM control board, as well as the EUSO-TA and EUSO-Balloon integration tests. I will report on the EUSO-Balloon campaign and results, including a specific analysis developed to search for global variations of the ground UV emissivity, and apply a similar analysis to data collected at the site of Telescope Array. Finally, I will present the implementation and testing of the first-level trigger (L1) within the FPGA of the PDM control board. 

학생들의 많은 참여 바랍니다.
 
 
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