Positron Emission of Carbon-11

11C → 11B + e+ + νe

概要

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.

参加者

役割 物質 係数 状態
反応物 Carbon C 1 (s)
生成物 Boron B 1 (s)

日常の例

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

産業上の重要性

C-11 PETトレーサーは神経学研究、腫瘍学、心臓病学に使用される。サイクロトロン製造には専門的な放射性医薬品施設が必要である。

特性

タイプ
Nuclear
可逆的
いいえ
エネルギー
発熱性
ΔH
-96000000.0 kJ/mol

関連する反応

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.