Calculation of Theoretical Total Number of Reflections

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Calculation of Theoretical Total Number of Reflections (ignoring symmetry)

The theoretical number of reflections to a given resolution limit is given by:

N = [(4/3)*pi*2³ / lambda³] * V * (sin(theta_max))³, but sin(theta_max) = lambda/(2*d), so

N = [(4/3)*pi*2³ / lambda³] * V * (lambda/2*d)³],

N = [(4/3)*pi*2³ * V /(2*d)³]

    N = the expected number of reflections
    V = unitcell volume,
    d = high resolution limit for the data collection

a		b		c		alpha		beta		gamma

High resolution limit	Å


Volume of the cell:	Å**3
Number of expected reflections:

To Do Additional Calculations: Change the appropriate values above and press CALCULATE again.

Last revised: Thursday, 25-Apr-2002 13:21:24 EDT