Technetium-99m Gamma Decay
99mTc → 99Tc + γ
Tổng quan
Technetium-99m (metastable) releases a 140 keV gamma ray to reach the ground state Tc-99 with a half-life of 6.01 hours. This isomeric transition emits no particulate radiation. The 140 keV gamma energy is ideal for gamma camera detection, and the 6-hour half-life allows sufficient imaging time with rapid decay.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Technetium Tc | 1 | (s) |
Ví dụ thực tế
Tc-99m is used in about 30 million medical diagnostic scans worldwide each year, making it the most widely used medical radioisotope.
Tầm quan trọng công nghiệp
Tc-99m accounts for over 80% of all nuclear medicine procedures globally, used for bone, heart, brain, lung, and kidney imaging.
Tính chất
- Loại
- Nuclear
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -14000000,0 kJ/mol
Phản ứng liên quan
Frequently Asked Questions
What is the equation for Technetium-99m Gamma Decay?
The balanced equation is: ⁹⁹ᵐTc → ⁹⁹Tc + γ.
What type of reaction is Technetium-99m Gamma Decay?
Technetium-99m Gamma Decay is a nuclear reaction.
Is Technetium-99m Gamma Decay exothermic or endothermic?
Technetium-99m Gamma Decay is exothermic (releases energy). The enthalpy change (ΔH) is -14000000.0 kJ/mol.