25 July 2007 to 1 August 2007
Karlsruhe University
Europe/Zurich timezone

Reflection of Microwave from Energy Deposit by X-ray Irradiation in Rock Salt: Implying Salt Ultra High Energy Neutrino Detector to act like a Radio Bubble Chamber

26 Jul 2007, 15:00
20m
Lehmann-Auditorium (Karlsruhe University)

Lehmann-Auditorium

Karlsruhe University

Wolfgang-Gaede-Str. 1 76131 Karlsruhe Germany
Parallel Talk Cosmology and Astrophysics Cosmology 1

Speaker

Dr Masami Chiba (Tokyo Metropolitan University)

Description

We found microwave reflection from a small rock salt samples irradiated by X-ray. The reflection rate was consistent with number of ionized electrons by the irradiation. Coherent reflection was indicated by time dependence of the reflection rate. It means the irradiated size could be scaled up to ultra-high energy electromagnetic shower using longer wavelength while the reflection rate is kept. Information from antennae would be utilized to 3D reconstruction of the electromagnetic shower like as a radio bubble chamber. Pulse radar emission power could be as large as MW then radio wave can travel 10 attenuation length (2-3km) to be detected. The construction cost could be reduced much if the radar method is applicable, since number of boreholes can be reduced in which detection antennae are installed.

Author

Dr Masami Chiba (Tokyo Metropolitan University)

Co-authors

Mr Akio Amano (Seikei University) Dr Fumiaki Yabuki (Tokyo Metropolitan University) Mr Keisuke Ibe (Seikei University) Prof. Masatoshi Fujii (Shimane University) Prof. Michiaki Utsumi (Tokai University) Prof. Osamu Yasuda (Tokyo Metropolitan University) Mr Shunsuke Nakamura (Tokyo Metropolitan University) Sosuke Ninomiya (Seikei University) Prof. Tadashi Kon (Seikei University) Mr Toshio Kamijo (Tokyo Metropolitan University) Dr Yasuhiro Takayama (Tokyo Metropolitan University) Mr Yasuyuki Taniuchi (Tokai University) Ms Yoko Arakawa (Tokyo Metropolitan University) Yoshito Takeoka (Seikei University) Prof. Yuichi Chikashige (Seikei University) Mr Yuji Shibasaki (Tokyo Metropolitan University) Mr Yusuke Watanabe (Tokyo Metropolitan University) Dr Yutaka Shimizu (Seikei University)

Presentation materials