Method of producing excited states of atomic nuclei
    2.
    发明授权
    Method of producing excited states of atomic nuclei 失效
    产生原子核激发态的方法

    公开(公告)号:US3974390A

    公开(公告)日:1976-08-10

    申请号:US433911

    申请日:1974-01-09

    摘要: A method of producing excited states of atomic nuclei which comprises bombarding atoms with X rays or electrons, characterized in that (1) in the atoms selected to be produced in the excited state of their nuclei, (a) the difference between the nuclear excitation energy and the difference between the binding energies of adequately selected two electron orbits is small enough to introduce the nuclear excitation by electron transition, and (b) the system of the nucleus and the electrons in the case of ionizing an orbital electron in said atoms should satisfy the spin and parity conservation laws, and (2) the energy of the bombarding X rays or electrons should be larger than the binding energy of one of the said two electron orbits which is located at shorter distance from the atomic nucleus. According to the present invention, atomic nuclei can be excited in a relatively simple manner without requiring the use of large scale apparatus, equipment and production facilities, e.g., factories. It is also possible to produce radioactive substances or separate a particular isotope with an extremely high purity from a mixture of isotopes by utilizing nuclear excitation.

    摘要翻译: 一种产生原子核的激发态的方法,其包括用X射线或电子轰击原子,其特征在于:(1)选择在其核的激发态产生的原子,(a)核激发能 并且充分选择的两个电子轨道的结合能之间的差异足够小以通过电子跃迁引入核激发,和(b)在电离所述原子中的轨道电子的情况下,核和电子的系统应满足 自旋和奇偶保守定律,以及(2)轰击X射线或电子的能量应大于位于离原子核较短距离的所述两个电子轨道之一的结合能。 根据本发明,可以以相对简单的方式激发原子核,而不需要使用大规模的设备,设备和生产设备,例如工厂。 也可以通过利用核激发从同位素混合物中产生放射性物质或分离出具有极高纯度的特定同位素。

    Method for the analysis of isotopes
    4.
    发明授权
    Method for the analysis of isotopes 失效
    同位素分析方法

    公开(公告)号:US4031388A

    公开(公告)日:1977-06-21

    申请号:US503693

    申请日:1974-09-06

    摘要: A method for the qualitative or quantitative analysis of isotopes, characterized by bombarding a substance with X rays or electrons of a previously determined dose and energy for analyzing an isotope in the substance to be detected or measured, to produce an excited state of atomic nuclei of the isotope and thereafter detecting the existence or measuring the dose of the gamma rays or internal conversion electrons emitted in the course of the deexcitation process of the atomic nuclei in the excited state to the ground state. According to the present invention, a particular isotope or element in a substance can qualitatively or quantitatively by analyzed in a simple and precise manner within an extremely short period of time without the necessity of using a large scale apparatus.

    摘要翻译: 一种用于定性或定量分析同位素的方法,其特征在于用预先测定的剂量和能量的X射线或电子轰击物质以分析待检测或测量的物质中的同位素,以产生原子核的激发态 然后检测存在或测量在激发态的原子核的去激发过程中发射的γ射线或内部转换电子的剂量到基态。 根据本发明,物质中的特定同位素或元素可以通过在极短的时间内以简单且精确的方式进行分析,而不需要使用大规模装置来定性或定量。