1/8-10/2007
M.A. Huang
Cosmic Ray Tau Neutrino (CRTNT) Experiment
Introduction
Two prototype telescopes
Test run on ARGO-YBJ site, Tibet
Full scale experiment: 2008
Updates in Physics
Summary
Huihai He
Institute of High Energy Physics, CAS
Introduction
1/8-10/2007
M.A. Huang
CRTNT
CRTNT : Cosmic Ray Tau Neutrino Telescope
Detect shower from , which comes from Earth-skimming
CRTNT feasibility study
Z. Cao, M.A. Huang, P. Sokolsky, Y. Hu, J. Phys. G, 31, 571-582, (2005)
Highlight of the year 2005 of JPG
The total detection efficiency of tau neutrinos from AGN is 1.4x10-5
The expected event number per year is
8~10 events
A duty cycle of 15% & 4 sites are assumed considering a possibility of running with moon partially
Prototype
1/8-10/2007
M.A. Huang
Focal plane camera:
256 PMT's cluster
5.0m2 Spherical mirror
UV filter
(un-installed)
Back plane of PMT cluster
20 mirror sections
(back)
Each photo/digi-pulse convertor. contains PMT, shaping, dual-chann-VGA, FADC &FPGA trigger
1/8-10/2007
All-in-one design
Only processed data are transmitted to central computer via TCP/IP network.
Modularized design of photon-digitized-pulse converter 4x4 pixels.

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