@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:t10-48>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "10-48" ;
  skosxl:prefLabel "particle current density"@en ;
  skosxl:altLabel "bb(ii(J))"@en ;
  skosxl:altLabel "bb(ii(S))"@en ;
  skos:definition "vector whose component in direction of an area normal is given by:\n\n[stem%unnumbered]\n++++\nbb(ii(J))_n = int ii(Phi)_(ii(Omega)) (theta,alpha) \"cos\" (ii(theta)) \"d\"ii(Omega)\n++++\n\nwhere\n\nstem:[ii(Phi)_(ii(Omega)) (ii(theta),alpha)]:: is the directional distribution of the particle fluence rate (<<t10-44>>), and\nstem:[ii(theta)] and stem:[alpha]:: are polar and azimuthal angles, respectively\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-10> ;
  isq:hasUnit [
    skos:notation "m^(-2)*s^(-1)" ;
    skosxl:prefLabel "per square metre second"@en
  ] ;
  skos:note "Usually the word \"particle\" is replaced by the name of a specific particle, for example proton current.\n\nSymbol stem:[bb(ii(S))] is recommended when there is a possibility of confusion with the symbol stem:[bb(ii(J))] for electric current density. For neutron current, the symbol stem:[bb(ii(J))] is generally used. The distribution functions expressed in terms of speed and energy, stem:[bb(ii(J))_nu] and stem:[bb(ii(J))_\"E\"], are related to stem:[bb(ii(J))] by:\n\n[stem%unnumbered]\n++++\nbb(ii(J)) = int bb(ii(J))_nu \"d\"nu = int bb(ii(J))_\"E\" \"d\"E.\n++++\n\nThe directional distribution of the particle fluence rate is also denoted as particle radiance.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-10:ed-2:en:item:10-48> .