astar=2*math.pi/3.95
cstar=2*math.pi/12.06556
eps=0.0011
Q=Numeric.array( [ [astar*0.01*i+eps,-astar*0.01*i+eps,0] for i in range(1,100)]    )
debyerange=[8,8,2]
debye=astar/4
SMcellrange=[2,2,2]
cellrange= [-1,-1,-1]
Kcellrange=[8,8,2]
sigmacellrange=[4,4,6]
sigmacharge=3
IS_IT_SCREENED=0
selectors=[(1.0,1.0,0.0), (1.0,-1.0,0.0), (1.0,0.0,1.0), (-1.0,1.0,0.0)]
