Positron Emission of Carbon-11

¹¹C → ¹¹B + e⁺ + ν_e

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Carbon C	1	(s)
Sản phẩm	Boron B	1	(s)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

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

Tính chất

Loại: Nuclear
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -96000000,0 kJ/mol

Phản ứng liên quan

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Electron Capture by Beryllium-7

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.