<<<<<<<<<<<<<<<<<<< CRC News No.1794:2011年 11月 19日 >>>>>>>>>>>>>>>>>>>>> CRC会員 各位 CRC事務局 宇宙線研支部 *******************< 11/24 KEK測定器開発室セミナー >******************** 関連分野の皆様 *ご案内が重複した場合はお許しください。 KEK測定器開発室では高エネルギー・原子核およびその関連分野の測定器技術・ 応用に関する知見を深めるため、不定期でセミナーを開催しております。 11月24日午後2時より、上海交通大学のKarl Giboni氏によるセミナーを開催しま す。多数のご参加をお待ちしております。 TV会議システム等での中継も可能です。 ご希望の方は担当者までお問い合わせください。                       KEK測定器開発室 ******************** KEK DTP Seminar ************************** Title : Panda - X The Next Step in Dark Matter Search with Liquid Xenon Speaker : Prof. Karl Giboni (Shanghai Jiao Tong University) Date : November 24, 14:00~ Location : Meeting room 2 in 3rd floor, bldg. 4 (4号館3階輪講室2) Abstract : The design of Panda - X, the first liquid xenon detector for Dark Matter Search in the JinPing lab in Szechuan Province, China is completed. A test set up will be filled aboveground for the first time before year end. The detector will then be installed in the underground location in early spring. This detector will initially have a modest size of about 25 kg fiducial. Independent of the results a more thorough search with a detector on the 1 ton scale is planned. A simple scale up of the standard liquid xenon double phase design requires too many compromises in the design. Besides the larger mass also a higher light collection efficiency, lower radio-active background, lower HV, less electronic channels and a lower maximum drift time are on the wish list for such a detector. At reasonable cost, it is impossible to improve all this parameters simultaneously with the same structure which was so successful in the XENON10 and XENON100 experiments. Some R&D for a new principle is needed. Once completed, the larger detector can be installed in the same environment as Panda-X, since outer cryostat vessel, the passive shield and the cryogenic system are already prepared for the larger size. 担当 (contact person):春山(tomiyoshi.haruyama [at] kek.jp) 測定器開発室セミナー情報WEB:http://rd.kek.jp/seminar_01.html =====================================