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| {{Infobox isotope
| | Boat Builder and Repairer Truman Hyslop from Bedford, likes interior design, property developers in singapore and aromatherapy. Finished a cruise ship experience that included passing by León Cathedral.<br><br>Here is my webpage; [http://bakoblog.com/groups/govt-condominium/ Http://Bakoblog.Com/] |
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| | alternate_names =
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| | symbol =N
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| | mass_number =13
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| | mass =
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| | num_neutrons =6
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| | num_protons =7
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| | abundance =
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| | halflife = 9.97 min
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| | error_halflife =
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| | text_color =
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| | image =
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| | decay_product = [[Carbon-13]]
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| | decay_symbol =
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| | decay_mass =
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| | decay_mode1 = [[Electron capture]]
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| | decay_energy1 =
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| | decay_mode2 =
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| | decay_energy2 =
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| | decay_mode3 =
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| | decay_energy3 =
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| | decay_mode4 =
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| | decay_energy4 =
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| | parent = Oxygen-13
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| | parent_symbol = O
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| | parent_mass = 13
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| | parent_decay = [[Electron capture]]
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| | parent2 =
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| | parent2_symbol =
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| | parent2_mass =
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| | parent2_decay =
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| | spin =
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| | excess_energy =
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| | error1 =
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| | binding_energy =
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| | error2 =
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| }}
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| '''Nitrogen-13''' is a [[radioisotope]] of [[nitrogen]] used in [[positron emission tomography]] (PET). It has a [[half life]] of a little under ten minutes, so it must be made at the PET site. A [[cyclotron]] may be used for this purpose.
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| Nitrogen-13 is used to tag [[ammonia]] molecules for PET myocardial perfusion imaging.
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| ==Production==
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| :H<sup>1</sup> + O<sup>16</sup> → N<sup>13</sup> + He<sup>4</sup>
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| The proton must be accelerated to a [[kinetic energy]] of about 5.55 Mev or a little more.
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| The reaction is [[endothermic]] (i.e. the mass of the products is greater than the reactants, so energy needs to be supplied which is converted to mass).This is one reason why the proton needs to carry extra [[energy]] to produce the [[nuclear reaction]].
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| The energy difference is actually 5.22 MeV, but if the proton only supplied this energy the reactants would be formed with no kinetic energy. As [[momentum]] must be [[conservation laws|conserved]], the true energy that needs to be supplied by the proton is given by:
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| :<math>K =(1+m/M) |E|</math>
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| ==Role in stellar fusion==
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| [[Image:CNO Cycle.svg|300px|right|thumbnail|The N-13 role in the CNO Cycle.]]
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| Nitrogen-13 plays a significant role in the [[CNO cycle]], which is the dominant source of energy in stars heavier than the [[sun]].<ref>{{cite book|author=Phillips, A.C. |title=The Physics of Stars |publisher=John Wiley & Sons |year=1994|isbn=0-471-94057-7}}
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| </ref>
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| :{| border="0"
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| |- style="height:2em;"
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| |{{Nuclide|Link|carbon|12}} ||+ ||{{Nuclide2|hydrogen|1}} ||→ ||{{Nuclide2|nitrogen|13}} ||+ ||{{SubatomicParticle|link=yes|Gamma}} || || ||+ ||1.95 [[electron volt|MeV]]
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| |- style="height:2em;"
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| |{{Nuclide|Link|nitrogen|13}} || || ||→ ||{{Nuclide2|carbon|13}} ||+ ||{{SubatomicParticle|link=yes|Positron}} ||+ ||{{SubatomicParticle|link=yes|Electron Neutrino}} ||+ ||1.20 [[electron volt|MeV]]
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| |- style="height:2em;"
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| |{{Nuclide|Link|carbon|13}} ||+ ||{{Nuclide|Link|hydrogen|1}} ||→ ||{{Nuclide|Link|nitrogen|14}} ||+ ||{{SubatomicParticle|link=yes|Gamma}} || || ||+ ||7.54 [[electron volt|MeV]]
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| |- style="height:2em;"
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| |{{Nuclide|Link|nitrogen|14}} ||+ ||{{Nuclide|Link|hydrogen|1}} ||→ ||{{Nuclide|Link|oxygen|15}} ||+ ||{{SubatomicParticle|link=yes|Gamma}} || || ||+ ||7.35 [[electron volt|MeV]]
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| |- style="height:2em;"
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| |{{Nuclide|Link|oxygen|15}} || || ||→ ||{{Nuclide|Link|nitrogen|15}} ||+ ||{{SubatomicParticle|link=yes|Positron}} ||+ ||{{SubatomicParticle|link=yes|Electron Neutrino}} ||+ ||2.75 [[electron volt|MeV]]
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| |- style="height:2em;"
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| |{{Nuclide|Link|nitrogen|15}} ||+ ||{{Nuclide|Link|hydrogen|1}} ||→ ||{{Nuclide|Link|carbon|12}} ||+ ||{{Nuclide|Link|helium|4}} || || ||+ ||4.96 [[electron volt|MeV]]
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| |}
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| ==External links==
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| *[http://www.petnm.unimelb.edu.au/pet/index.html PET site] of the [[University of Melbourne]]
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| ==References==
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| <!--See http://en.wikipedia.org/wiki/Wikipedia:Footnotes for an explanation of how to generate
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| footnotes using the <ref(erences/)> tags-->
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| {{Reflist}}
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| {{Isotope|element=nitrogen
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| |lighter=[[nitrogen-12]]
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| |heavier=[[nitrogen-14]]
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| |before=[[oxygen-13]] '''([[electron capture]])
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| |after=[[carbon-13]] '''(EC)
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| }}
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| [[Category:Isotopes of nitrogen]]
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Boat Builder and Repairer Truman Hyslop from Bedford, likes interior design, property developers in singapore and aromatherapy. Finished a cruise ship experience that included passing by León Cathedral.
Here is my webpage; Http://Bakoblog.Com/