第一个5.26年衰减50%,余下50% 第二个5.26年衰减余下的50%中的50%,相对于原始总量衰减了25%,余下原始总量的25% 第二个5.26年衰减余下的25%中的50%,相对于原始总量衰减了12.5%,余下原始总量的12.5% 所以经过3*5.26=15...
The gamma spectrum from Cobalt 60 decay has been investigated with a 40 cc Ge(Li) detector. A peak at 822 keV is shown to be not a gamma transition but a single escape peak and an upper limit of 10 is given to the branching ratio of the 2158 keV level....
The photonuclear reaction 2D(γ,n) was utilized to measure the intensity of the weak 2,505 keV γ-ray in the decay of 60Co. A point-like source was used to cause the reaction in heavy water, and the neutrons generated were detected with a BF3 counter. The observed intensity per decay...
第一个5.26年衰减50%，余下50 第二个5.26年衰减余下的50%中的50%，相对于原始总量衰减了25%，余下原始总量的25 第二个5.26年衰减余下的25%中的50%，相对于原始总量衰减了12.5%，余下原始总量的12.5 所以经过3*5.26=15.78年，衰减87.5 可以根据公式N=N0*(1/2)^(t/T) 计算，其...
Two such examples are given, one concerning the incorrect application of the decay of the radioactive cobalt-60, which resulted in serious over dose to hundreds of patients, the other concerning the incorrect disposal of the radioactive source. Of great importance is the use of cobalt-60 as ...
Work by Verser on the angular correlation of gamma rays from Co/sup 60/ decay gave a correlation curve in disagreement with the theoreticai curve. A rerun of the cobalt-60 experiment was made to confirm the results obtained in the previous work. A comparison of the previous work confirms ...
百度试题 结果1 题目What is generated as the elements, such as radium, uranium, and cobalt 60, decompose or decay? A. high energy X-rays B. α ray C. β ray D. Gamma ray 相关知识点: 试题来源: 解析 D 反馈 收藏
Temperature can govern morphologies, structures and properties of products from synthesis in solution. A reaction in solution at low temperature may result in different materials than at higher temperature due to thermodynamics and kinetics of nuclei for
Measurement of the fission yields of selected prompt and decay fission product gamma-rays of spontaneously fissioning 252Cf and 244Cm Gamma-ray spectrometry measurements have been made of the fission yields of selected ?-rays emitted by the spontaneously fissioning isotopes 252Cf and 244C... EL ...
ParameterValue Decay Modesβ-,γ Approx.60 000 Massic Activity (Bq/g) ChemicalCoCl2 Form NRC License orX Equivalent Required* Product Message: 12345 Content:* Contact:*2~20个字符 Phone:*Malformed Email:*EmailMalformed Company: Address: