Positron Emission of Carbon-11

11C → 11B + e+ + νe

Обзор

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.

Участники

Роль Вещество Коэффициент Состояние
Реагент Carbon C 1 (s)
Продукт Boron B 1 (s)

Пример из жизни

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

Промышленное значение

C-11 PET tracers are used in neurological research, oncology, and cardiology. Cyclotron production requires specialized radiopharmacy facilities.

Свойства

Тип
Nuclear
Обратимая
Нет
Энергия
Экзотермическая
ΔH
-96000000,0 kJ/mol

Связанные реакции

Alpha Decay of Radon-222 Neutron Capture by Uranium-238 Beta Decay of Strontium-90 Beta Decay of Cobalt-60 Beta Decay of Carbon-14 Proton-Proton Chain (Solar Fusion) Uranium-235 Fission Positron Emission of Fluorine-18 (PET Scan) Technetium-99m Gamma Decay Alpha Decay of Radium-226

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.