13 N is a radioisotope of the element nitrogen with a half-life of just under 10 minutes. The atomic nucleus of the nulide is composed of 6 neutrons and the 7 element-specific protons.

Nitrogen-13 (13 N) is a radioisotope of nitrogen used in positron emission tomography (PET). It has a half-life of a little under ten minutes, so it must be made at the PET site. A cyclotron may be used for this purpose. Nitrogen-13 is used to tag ammonia molecules for PET myocardial perfusion imaging.

Natural nitrogen (7 N) consists of two stable isotopes: the vast majority (99.6%) of naturally occurring nitrogen is nitrogen-14, with the remainder being nitrogen-15. Thirteen radioisotopes are also known, with atomic masses ranging from 9 to 23, along with three nuclear isomers.

氮-13 是氮的人造放射性同位素之一， 半衰期 很短，具有高度放射性。 氮-13和 氧-15 可以由伽马射线 (例如从闪电产生)将氮-14和氧-16的一个中子轰出去而形成： 14N + γ → 13N + n. 16O + γ → 15O + n. 氮-13会衰变成 碳-13，并发射一个正电子，半衰期10分钟。 这个正电子很快就和一个电子湮灭，放出两个511keV的光子。 在一个闪电过后，这些伽马射线照理来说可以持续10分钟，不过这些低能量伽马射线只能传播90米，所以只能探测到1分钟。 13N和15O组成的“云”会被风 …

2014年4月1日 · 13N is produced in yields of 32mCi/μA(t∞) with a proton beam of 27 MeV striking H2O which circulates through a flow-chamber as a target for internal cyclotron irradiation.

Nitrogen-13:13N (half-life 9.96 min), can be produced by proton bombardment of water through the 16O (p, α)13N nuclear reaction. The decay of 13N is also purely β+, the mean energy of the positrons is 492 keV, and the endpoint energy (the maximum energy) is 1.19 MeV which corresponds to a range in water of about 5.4 mm.

1975年6月15日 · The 13N is produced, nearly free of other radioactivities, in the 13C(p, n)13N reaction, using 17 mg amorphous carbon targets enriched to about 97% 13C and a proton bombarding energy of 11 MeV. The irradiated material is …

13n氨水是一种有效的医疗诊断工具，由于其短正电子范围、高灵敏度和心肌中的高首过拔出性和保留特性，可准确检测冠状动脉疾病（cad）从而改善患者管理，同时用于心脏pet显像。

Detailed decay information for the isotope nitrogen-13 including decay chains and daughter products.

氮[13N]氨: 一种PET imaging药物，由The Feinstein Institutes for Medical Research (The Feinstein Institutes for Medical Research)公司最早进行研发，目前全球最高研发状态为批准上市，作用机制: PET imaging(正电子发射断层成像术增强剂)，治疗领域: 心血管疾病，在研适应症: 冠心病，在研 ...