In this work, we recorded the alpha spectra of radium-226 and amrecium-241 sources using a semiconductor detector and Rutherford scattering chamber. We also measured the energy loss of alpha particles in gold foil (target) and in aluminum foil as a f
unction of alpha energy and as a function atomic number Z of the target. Comparison between experimental and theoretical results show a good agreemen.
In this paper, an oblique side weir was studied by nine models installed at the entrance of
side channel at an angles (300,450,600,750 and 900) respected to side channel wall and installed at
two directions, with flow direction and opposite it. The
models were tested by five different flows
passing over them so, the number of runs is 45.
The hydraulic characteristics of flow over vertical and oblique side weir were studied, and
the results show increasing of discharge over side weir when installed at an oblique direction
and the average increases when their inclination at left direction was greater (6%) than that
right direction.
Equations were predicted for calculation of discharge coefficient (Cd) and coefficient of
energy loss (k) for two directions and the water surface profile for vertical and oblique side weir
in two directions is plotted.
