@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t10-43>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "10-43" ;
  skosxl:prefLabel "particle fluence"@en ;
  skosxl:altLabel "ii(Phi)"@en ;
  skos:definition "differential quotient of stem:[N] with respect to stem:[a], where stem:[N] is the number of particles incident on a sphere of cross-sectional area stem:[a] (<<t10-38.1>>):\n\n[stem%unnumbered]\n++++\nii(Phi) = (\"d\"N)/(\"d\"a)\n++++\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-10> ;
  isq:hasUnit [
    skos:notation "m^(-2)" ;
    skosxl:prefLabel "per square metre"@en
  ] ;
  skos:note "The word \"particle\" is usually replaced by the name of a specific particle, for example _proton_ fluence.\n\nIf a flat area of size stem:[\"d\"A] is passed perpendicularly by a number of stem:[\"d\"N] particles, the corresponding particle fluence is: stem:[ii(Phi) = (\"d\"N)/(\"d\"A)]\n\nA plane area of size stem:[\"d\"A] crossed at an angle stem:[alpha] with respect to the surface normal by a number of stem:[\"d\"N] particles results in the particle fluence:\n\n[stem%unnumbered]\n++++\nii(Phi) = (\"d\"N)/(\"cos\"(alpha)\"d\"A)\n++++\n\nIn report 85a of the ICRU a definition with an equivalent meaning is given as:\n\nThe fluence, stem:[ii(Phi)], is the quotient of stem:[\"d\"N] and stem:[\"d\"a], where stem:[\"d\"N] is the number of particles incident on a sphere of cross-sectional area stem:[\"d\"a]:\n\n[stem%unnumbered]\n++++\nii(Phi) = (\"d\"N)/(\"d\"a)\n++++\n\nSee also <<cls-0.3>>.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-10:ed-2:en:item:10-43> .