{"title":"A computer-linked cathode-ray tube microdensitometer for x-ray crystallography.","authors":"U W Arndt, R A Crowther, J F Mallett","doi":"10.1088/0022-3735/1/5/303","DOIUrl":null,"url":null,"abstract":"A versatile double-beam microdensitometer has been constructed in which the source of light is the spot of a high resolution cathode-ray tube. The spot position is under computer control and the optical density, digitized by a novel analogue-to-digital converter circuit, is read directly into the computer. The instrument is capable of making an integrated intensity measurement in about 02 s with an accuracy to about 3%.","PeriodicalId":16983,"journal":{"name":"Journal of Scientific Instruments","volume":"1 5","pages":"510-6"},"PeriodicalIF":0.0000,"publicationDate":"1968-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1088/0022-3735/1/5/303","citationCount":"85","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Scientific Instruments","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/0022-3735/1/5/303","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 85
Abstract
A versatile double-beam microdensitometer has been constructed in which the source of light is the spot of a high resolution cathode-ray tube. The spot position is under computer control and the optical density, digitized by a novel analogue-to-digital converter circuit, is read directly into the computer. The instrument is capable of making an integrated intensity measurement in about 02 s with an accuracy to about 3%.
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