摘要
利用近代物理实验中的磁谱仪测量了90Sr-90 Y放射源的β衰变能谱.得到的能谱和普遍的β衰变能谱相似;得到的β射线最大能量与平均能量比值和文献中给出的一些放射源的比值接近,这些都说明了该实验测量数据的可靠性.运用库里厄(Kurie)图,研究了此放射源的β衰变能谱,得到的跃迁性质和能级自旋宇称与此放射源已有的数据相吻合,说明在近代物理实验中能够利用磁谱仪测量原子核的β衰变能谱、研究原子核的跃迁性质和能级自旋宇称.
The energy spectra of βdecay for 90Sr-90Y radioactive source were measured by using the magnetic spectrometer in the modern physics experiment. The measured energy spectra are similar to the general energy spectra of β decay. The ratio of the maximum value to the mean value is close to that of some radioactive sources which are from the references. It is shown that the ex tive source are stu perimental data are reliable. The energy spectra of β decay for the radioac- died by using Kurie plot. The obtained transition character, spin and parity of energy level are agreeable with data of the radioactive source. It is shown that in the mo- dern physics experiments the magnetic spectrometer can he used to measure the energy spectra of β decay, to study the transition character, spin and parity of energy level for nuclei.
出处
《物理与工程》
2011年第5期10-12,16,共4页
Physics and Engineering
关键词
磁谱仪
Β衰变
能谱
库里厄图
magnetic spectrometer
β decay
energy spectra
Kurie plot
