Author/Authors :
Pham Ngoc Dinh، نويسنده , , Nguyen Tien Dung، نويسنده , , Bui Duc Hieu، نويسنده , , Nguyen Phuc Cam Tu، نويسنده , , Pham Trung Phuong، نويسنده , , Pierre Darriulat، نويسنده , , Dang Quang Thieu، نويسنده , , Vo Van Thuan، نويسنده ,
Abstract :
The VATLY is a new laboratory in Hanoi dedicated to research in the field of comic ray physics. Its various activities are briefly reviewed. The vertical cosmic muon flux has been measured using a segmented scintillator hodoscope and the results have been published in Ref. [1]. An orientable scintillation telescope has been constructed for measurement of the zenith angle dependence of the muon flux, of which preliminary results are reported here. They are in good agreement with the predictions of air shower model.