Positron Emission of Carbon-11

11C → 11B + e+ + νe

Visão geral

Carbon-11 undergoes positron emission to become boron-11 with a short half-life of 20.4 minutes. C-11 can be incorporated into virtually any organic molecule for PET imaging because carbon is present in all organic compounds. Its short half-life limits use to facilities with on-site cyclotrons.

Participantes

Papel Substância Coeficiente Estado
Reagente Carbon C 1 (s)
Produto Boron B 1 (s)

Exemplo do cotidiano

C-11 labeled methionine PET scans help distinguish brain tumor recurrence from radiation necrosis after cancer treatment.

Importância industrial

Os traçadores PET com C-11 são utilizados em investigação neurológica, oncologia e cardiologia. A produção em ciclotrão requer instalações especializadas de radiofarmácia.

Propriedades

Tipo
Nuclear
Reversível
Não
Energia
Exotérmico
ΔH
-96000000,0 kJ/mol

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Frequently Asked Questions

What is the equation for Positron Emission of Carbon-11?
The balanced equation is: ¹¹C → ¹¹B + e⁺ + νₑ.
What type of reaction is Positron Emission of Carbon-11?
Positron Emission of Carbon-11 is a nuclear reaction.
Is Positron Emission of Carbon-11 exothermic or endothermic?
Positron Emission of Carbon-11 is exothermic (releases energy). The enthalpy change (ΔH) is -96000000.0 kJ/mol.