<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">170727s1968    oncd    ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="a">eng</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">M38-8/65E-PDF</marc:subfield>
      <marc:subfield code="z">M38-8/65</marc:subfield>
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    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Reed, Dorothy J.</marc:subfield>
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    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Dead time correction in x-ray spectrography </marc:subfield>
      <marc:subfield code="h">[electronic resource] / </marc:subfield>
      <marc:subfield code="c">Dorothy J. Reed and A.H. Gillieson, Mineral Sciences Division.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="260" ind1=" " ind2=" ">
      <marc:subfield code="a">Ottawa : </marc:subfield>
      <marc:subfield code="b">Queen's Printer, </marc:subfield>
      <marc:subfield code="c">1968.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">[1], p. 67-[71] : </marc:subfield>
      <marc:subfield code="b">chart</marc:subfield>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">Reprint series ; </marc:subfield>
      <marc:subfield code="v">RS 65</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Cover title.</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"Reprinted from the Canadian Spectroscopy, Vol. 13, Issue No. 3, May 1968."</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Includes erratum.</marc:subfield>
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      <marc:subfield code="a">Historical publication digitized from print 2017 [by Natural Resources Canada].</marc:subfield>
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    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"The customary dead time correction applied to X-ray counting rates has been found unsatisfactory for the counting equipment used in the Mineral Sciences Division of the Mines Branch. Using a range of wavelengths from CrKα to BaKα and foils of several materials, an amended formulation for calculating- dead time and the true counting rate has been developed by the multifoil technique. Results obtained by a single foil and a two source method agree well with the multifoil ones using the amended formula"--Abstract, p. 67.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Includes abstract in French.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Minerals</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Chemistry</marc:subfield>
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      <marc:subfield code="a">Gillieson, A. H.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Natural Resources Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Department of Energy, Mines and Resources.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Mines Branch.</marc:subfield>
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      <marc:subfield code="a">Reprint series - Dept. of Energy, Mines and Resources, Mines Branch ;</marc:subfield>
      <marc:subfield code="v">RS 65</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.834843</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">1.53 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-65-eng.pdf</marc:subfield>
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      <marc:subfield code="a">300144</marc:subfield>
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