Contribution Poster (WITHDRAWN)

HE.1.2.A

Posters 1 + Coffee

The arrival time distribution near to EAS core at Taro

Speakers

Masaaki FUKUOKA

Primary authors

Noriko SUZUKI (Meisei University)

Co-authors

Masaaki FUKUOKA (Meisei University)
Hiroshi KURAMOCHI (ADOC International co.,Ltd)
Hiroshi SAKUYAMA (Meisei University)
Noboru SUZUKI (Meisei University)

Abstract content

Ｔｈｅ　ａｒｒｉｖａｌ　ｔｉｍｅ　ｄｉｓｔｒｉｂｕｔｉｏｎ　ｏｆ　ＥＡＳ　ｈａｓ　ｂｅｅｎ　ｏｂｓｅｒｖｅｄ　ｂｙ　ｕｓｉｎｇ　Ｕｌｔｒａ　Ｆａｓｔ　Ｃｅｒｅｎｋｏｖ　ｄｅｔｅｃｔｏｒｓ（ＵＦＣ）ａｎｄ　ｎｅｗ　Ｆａｓｔ　Ｓｃｉｎｔｉｌｌａｔｉｏｎ（ＦＳ）ｄｅｔｅｃｔｏｒｓ　ａｔ　Ｔａｒｏ（２００ｍ　ａ．ｓ．ｌ．）．Ｔｈｅ　ｍａｉｎ　ＥＡＳ　ａｒｒａｙ　ｃｏｎsists　ｏｆ　１６９　０．２５㎡　ａｎｄ　１００　０．０２２５㎡　ｓｃｉｎｔｉｌｌａｔｉｏｎ　ｄｅｔｅｃｔｏｒｓ　ｉｎ　ａ　ｌａｔｔｉｃｅ　ｃｏｎｆｉｇｕｒａｔｉｏｎ．Ｔｈｅ　ｏｔｈｅｒ　４０　１㎡　ａｎｄ　０．２５㎡　ｓｃｉｎｔｉｌｌａｔｉｏｎ　ｄｅｔｅｃｔｏｒｓ　ａｒｅ　ａｒｒａｎｇｅｄ　ｕｐ　ｔｏ　１００ｍ　ｆｒｏｍ　ｔｈｅ　ｃｅｎｔｅｒ　ｏｆ　ｔｈｅ　ａｒｒａｙ．ＦＳ　ｄｅｔｅｃｔｏｒｓ　ａｒｅ　ｐｌａｃｅｄ　ａｔ　１１～１４ｍ　ｆｒｏｍ　ｔｈｅ　ｃｅｎｔｅｒ　ｏｆ　ｔｈｅｌａｔｔｉｃｅ　ａｒｒａｙ．Ｔｈｅ　ＥＡＳ　ａｒｒａｙ　ｗａｓ　ｔｒｉｇｇｅｒｅｄ　ｂｙ　ｔｈｒｅｅ　ｆｏｌｄ　ｃｏｉｎｃｉｄｅｎｃｅ　ｏｆ　ｔｈｒｅｅ　ｆａｓｔ　ｓｃｉｎｔｉｌｌａｔｉｏｎ　ｄｅｔｅｃｔｏｒｓ　ｐｌａｃｅｄ　ａｔ　ｔｈｅ　ｃｅｎｔｒａｌ　ｐａｒｔ　ｏｆ　ｔｈｅ　ｌａｔｔｉｃｅ　ａｒｒａｙ．Ｔｈｅ　ａｃｃｕｒａｃｙ　ｏｆ　ｔｈｅ　ｍｅａｓｕｒｅｄ　ｄｉｓｔａｎｃｅ　ｂｅｔｗｅｅｎ　ｃｏｒｅ　ａｘｉｓ　ａｎｄ　ｔｈｅ　ＦＳ　ｄｅｔｅｃｔｏｒｓ　ｗａｓ　ｅｓｔｉｍａｔｅｄ　ａｓ　ｐｒｅｃｉｓｅｌｙ．Ｗｅ　ｒｅｐｏｒｔ　ｔｈｅ　ｒｅｓｕｌｔｓ　ｏｆ　ｒｉｓｅ　ｔｉｍｅ，ＦＷＨＭ　ａｎｄ　ｆａｌｌ　ｔｉｍｅ　ｎｅａｒ　ｔｈｅ　ＥＡＳ　ｃｏｒｅ　ｉｎ　ａ　ｖａｒｉｏｕｓＥＡＳ　ｓｉｚｅｒａｎｇｅ．　　

30th International Cosmic Ray Conference