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delayed particle
相关语句
  相似匹配句对
     MAGNETIC PARTICLE DETECTION OF DELAYED CRACK
     延迟裂纹的磁粉探伤
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     Delayed Discitis
     迟发性椎间盘炎
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     DELAYED VISBREAKING
     延迟减粘
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     The Energy of the H-particle
     H粒子的能量
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     particle irradiation.
     α粒子照射细胞诱发的基因突变存在旁效应;
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  delayed particle
The presence of Chol facilitated the removal of emulsion particles from plasma, whereas SM delayed particle removal.
      
The β-decay of 117Ba was investigated by means of the total absorption γ-ray spectrometer and a telescope for β-delayed particle detection.
      
A search for beta-delayed particle emission was made and an upper limit of 10-6 for this decay branch obtained.
      
Emphasis is put on beta-delayed particle emission, in particular processes with emission of several particles.
      


The calculation about absolute efficiency of particle telescope used in helium-jet system,which is employed usually in the study of beta-delayed particle spectroscopy,for detecting ra-dioactive moving source is described.The radioactive distribution of area source is considered.The influence of collimators and source deviation from center position on the detection efficiency isalso evaluated.The calculation is translated to computer program. With the program,the experi-mental data are processed and the...

The calculation about absolute efficiency of particle telescope used in helium-jet system,which is employed usually in the study of beta-delayed particle spectroscopy,for detecting ra-dioactive moving source is described.The radioactive distribution of area source is considered.The influence of collimators and source deviation from center position on the detection efficiency isalso evaluated.The calculation is translated to computer program. With the program,the experi-mental data are processed and the good results are obtained.

文章描述了在延迟粒子谱学研究中所常用的氦喷咀系统的粒子望远镜,并对运动的放射源的绝对探测效率进行计算。考虑具有一定分布的放射性面源,计算光栏和放射源偏离中心位置对探测效率的影响。将计算过程编制成计算机程序以处理实验数据。

A method of in bean measurement of β delay particle decay is reported. The radioactive ion 20 Na was identified in beam through TOF Δ E method on the Radioactive Ion Beam Line in Lanzhou (RIBLL). The procedure of data acquisition was divided in two stages, i.e., on beam and off beam stage, to record the Radioactive Ion Beam (RIB) and β +delay particles respectively. The half life of 20 Na is determined by using a time scaler combined with a pulse generator.

报道了一种在束测量β+ 延发粒子的方法。由新建成的兰州放射性次级束流线 (RIBLL )提供的2 0 Na次级束 ,利用飞行时间 (TOF)和能损 (ΔE)符合的方法实现 2 0 Na次级束流的在束鉴别与调制。将数据获取过程分为有束和停束两个获取时段 ,分别完成对次级束流和β+ 延发粒子的记录。同时利用脉冲发生器和计数器实现2 0 Na延发粒子衰变半衰期的测量

 
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