Matches in SemOpenAlex for { <https://semopenalex.org/work/W1985803003> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W1985803003 endingPage "370" @default.
- W1985803003 startingPage "363" @default.
- W1985803003 abstract "Neutron scattering instruments, including powder diffractometers, are affected by out-of-scattering-plane (“vertical”) divergence in the beams which increases count rates but worsens resolution. Such divergence may arise incidentally from the beam height or be deliberately enhanced by using vertically curved monochromators and very high detectors. The formula usually used to describe the resolution effect on powder diffractometers is invalid for modern instruments with large vertical beam divergence both before and after the sample and a corrected formula is presented. That formula is used to combine the resolution effect due to vertical divergence with that due to in-plane angular divergences. A nonlinear least squares optimisation process for this combined resolution is described which permits calculation of the optimum vertical divergence for typical powder diffractometers—high resolution, high intensity and strain scanning machines. The optimum out-of-plane divergence is found to be proportional to the square root of the in-plane divergence but is surprisingly small. Optimising vertical divergence is shown to have a surprisingly significant effect on instrument performance—measurement quality decreases by approximately the same amount as the fractional deviation from optimal vertical divergence even when all other variables are adjusted to maximise performance. The methods used here should also apply to vertical divergence on powder diffractometers using other radiation such as X-rays and could be extended to apply to other instrument types." @default.
- W1985803003 created "2016-06-24" @default.
- W1985803003 creator A5024822450 @default.
- W1985803003 date "2008-03-01" @default.
- W1985803003 modified "2023-09-27" @default.
- W1985803003 title "Vertical focusing on neutron powder diffractometers—How much is useful?" @default.
- W1985803003 cites W1969900357 @default.
- W1985803003 cites W2001356820 @default.
- W1985803003 cites W2048678506 @default.
- W1985803003 cites W2085362717 @default.
- W1985803003 cites W2793345261 @default.
- W1985803003 doi "https://doi.org/10.1016/j.nima.2008.01.086" @default.
- W1985803003 hasPublicationYear "2008" @default.
- W1985803003 type Work @default.
- W1985803003 sameAs 1985803003 @default.
- W1985803003 citedByCount "2" @default.
- W1985803003 countsByYear W19858030032016 @default.
- W1985803003 crossrefType "journal-article" @default.
- W1985803003 hasAuthorship W1985803003A5024822450 @default.
- W1985803003 hasConcept C119440689 @default.
- W1985803003 hasConcept C120665830 @default.
- W1985803003 hasConcept C121332964 @default.
- W1985803003 hasConcept C138268822 @default.
- W1985803003 hasConcept C138885662 @default.
- W1985803003 hasConcept C152568617 @default.
- W1985803003 hasConcept C154945302 @default.
- W1985803003 hasConcept C168834538 @default.
- W1985803003 hasConcept C17825722 @default.
- W1985803003 hasConcept C185544564 @default.
- W1985803003 hasConcept C191486275 @default.
- W1985803003 hasConcept C192562407 @default.
- W1985803003 hasConcept C207390915 @default.
- W1985803003 hasConcept C2524010 @default.
- W1985803003 hasConcept C2779530757 @default.
- W1985803003 hasConcept C2984025587 @default.
- W1985803003 hasConcept C33923547 @default.
- W1985803003 hasConcept C41008148 @default.
- W1985803003 hasConcept C41895202 @default.
- W1985803003 hasConcept C520434653 @default.
- W1985803003 hasConcept C62172962 @default.
- W1985803003 hasConcept C62520636 @default.
- W1985803003 hasConceptScore W1985803003C119440689 @default.
- W1985803003 hasConceptScore W1985803003C120665830 @default.
- W1985803003 hasConceptScore W1985803003C121332964 @default.
- W1985803003 hasConceptScore W1985803003C138268822 @default.
- W1985803003 hasConceptScore W1985803003C138885662 @default.
- W1985803003 hasConceptScore W1985803003C152568617 @default.
- W1985803003 hasConceptScore W1985803003C154945302 @default.
- W1985803003 hasConceptScore W1985803003C168834538 @default.
- W1985803003 hasConceptScore W1985803003C17825722 @default.
- W1985803003 hasConceptScore W1985803003C185544564 @default.
- W1985803003 hasConceptScore W1985803003C191486275 @default.
- W1985803003 hasConceptScore W1985803003C192562407 @default.
- W1985803003 hasConceptScore W1985803003C207390915 @default.
- W1985803003 hasConceptScore W1985803003C2524010 @default.
- W1985803003 hasConceptScore W1985803003C2779530757 @default.
- W1985803003 hasConceptScore W1985803003C2984025587 @default.
- W1985803003 hasConceptScore W1985803003C33923547 @default.
- W1985803003 hasConceptScore W1985803003C41008148 @default.
- W1985803003 hasConceptScore W1985803003C41895202 @default.
- W1985803003 hasConceptScore W1985803003C520434653 @default.
- W1985803003 hasConceptScore W1985803003C62172962 @default.
- W1985803003 hasConceptScore W1985803003C62520636 @default.
- W1985803003 hasIssue "2-3" @default.
- W1985803003 hasLocation W19858030031 @default.
- W1985803003 hasOpenAccess W1985803003 @default.
- W1985803003 hasPrimaryLocation W19858030031 @default.
- W1985803003 hasRelatedWork W2015973620 @default.
- W1985803003 hasRelatedWork W2016380325 @default.
- W1985803003 hasRelatedWork W2024642665 @default.
- W1985803003 hasRelatedWork W2048557172 @default.
- W1985803003 hasRelatedWork W2062728192 @default.
- W1985803003 hasRelatedWork W2154191539 @default.
- W1985803003 hasRelatedWork W2160294585 @default.
- W1985803003 hasRelatedWork W2290864281 @default.
- W1985803003 hasRelatedWork W4315706438 @default.
- W1985803003 hasRelatedWork W4366605384 @default.
- W1985803003 hasVolume "587" @default.
- W1985803003 isParatext "false" @default.
- W1985803003 isRetracted "false" @default.
- W1985803003 magId "1985803003" @default.
- W1985803003 workType "article" @default.