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Article: Evaluation of reflection intensities for the components of multiple Laue diffraction spots. II. Using the wavelength-normalization curve

TitleEvaluation of reflection intensities for the components of multiple Laue diffraction spots. II. Using the wavelength-normalization curve
Authors
Issue Date1993
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0108-7673&site=1
Citation
Acta Crystallographica Section A, 1993, v. 49, p. 889-893 How to Cite?
AbstractIn a Laue diffraction pattern, 10-20% of the spots result from the exact superposition of two or more reflections that are 'harmonics', e.g. hkl, 2h,2k,2l etc. The use of only the 80-90% of the reflections measurable as singles may not always be sufficient and evaluation of the intensities of the components of the multiple spots is therefore important. A procedure for this deconvolution is given, based on the varying nature of the wavelength-normalization curve. A feasibility trial has been carried out using a single Laue diffraction image of tetragonal hen egg white lysozyme (HEWL) recorded on an image plate. This allowed the intensities of 103 reflections to be evaluated from multiple spots. For these reflections, their agreement with monochromatic diffractometer data gave an R factor of 0.157 for 96 common reflections. An earlier paper described another procedure based on direct methods, which addressed the same problem.
Persistent Identifierhttp://hdl.handle.net/10722/138627
ISSN
2014 Impact Factor: 2.325
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCampbell, JWen_US
dc.contributor.authorHao, Qen_US
dc.date.accessioned2011-09-02T06:49:28Z-
dc.date.available2011-09-02T06:49:28Z-
dc.date.issued1993en_US
dc.identifier.citationActa Crystallographica Section A, 1993, v. 49, p. 889-893en_US
dc.identifier.issn0108-7673en_US
dc.identifier.urihttp://hdl.handle.net/10722/138627-
dc.description.abstractIn a Laue diffraction pattern, 10-20% of the spots result from the exact superposition of two or more reflections that are 'harmonics', e.g. hkl, 2h,2k,2l etc. The use of only the 80-90% of the reflections measurable as singles may not always be sufficient and evaluation of the intensities of the components of the multiple spots is therefore important. A procedure for this deconvolution is given, based on the varying nature of the wavelength-normalization curve. A feasibility trial has been carried out using a single Laue diffraction image of tetragonal hen egg white lysozyme (HEWL) recorded on an image plate. This allowed the intensities of 103 reflections to be evaluated from multiple spots. For these reflections, their agreement with monochromatic diffractometer data gave an R factor of 0.157 for 96 common reflections. An earlier paper described another procedure based on direct methods, which addressed the same problem.en_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0108-7673&site=1en_US
dc.relation.ispartofActa Crystallographica Section Aen_US
dc.titleEvaluation of reflection intensities for the components of multiple Laue diffraction spots. II. Using the wavelength-normalization curveen_US
dc.typeArticleen_US
dc.identifier.emailHao, Q: qhao@hku.hken_US
dc.identifier.authorityHao, Q=rp01332en_US
dc.identifier.doi10.1107/s0108767393007251en_US
dc.identifier.volume49en_US
dc.identifier.spage889en_US
dc.identifier.epage893en_US
dc.identifier.isiWOS:A1993MJ51200012-

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