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[ccp4bb] [Fwd: Re: [ccp4bb] question about redundancy] |
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CCP4bb navigationCCP4bb <-- 2007 <-- March 2007 <-- 20 March 2007Subject: [Fwd: Re: question about redundancy] From: Bart Hazes bart {- dot -} hazes {- at -} UALBERTA {- dot -} CA Date: 2007-03-20 is indeed 4 because, as you say, each reflection intersects the Ewald sphere twice, once through the top and once through the bottom (redundancy will actually be a bit less due to the missing cusp region). Bart yang li wrote: > Hi: > I am confused by a idea for a long time, and it maybe an easy question. > That is, if a cryst with p1 spacegroup, after 360 degree data collection, > what the redundancy should be? I was told that it is 2, and the 2 are > F(h,k,l) and F(-h,-k,-l), but I think if the reciprocal lattice rotated 360 > degree, it must intersect with the ewald sphere 2 times--for example, > go into the sphere and go out--then F(h,k,l) should be collected twice. > I donnot know what is wrong with my option. Anyone can tell me the > reason? Thanks! > > Li Yang > > -- ============================================================================== Bart Hazes (Assistant Professor) Dept. of Medical Microbiology & Immunology University of Alberta 1-15 Medical Sciences Building Edmonton, Alberta Canada, T6G 2H7 phone: 1-780-492-0042 fax: 1-780-492-7521 ============================================================================== -- ============================================================================== Bart Hazes (Assistant Professor) Dept. of Medical Microbiology & Immunology University of Alberta 1-15 Medical Sciences Building Edmonton, Alberta Canada, T6G 2H7 phone: 1-780-492-0042 fax: 1-780-492-7521 ============================================================================== CCP4bb navigationCCP4bb <-- 2007 <-- March 2007 <-- 20 March 2007 |
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