The intensity of the 283.4-keV γ line in the decay of137Cs has been measured. The value obtained is used to determine the probability of the unique second-forbidden β transition of the 7/2+→ 1/2+type: (8.7 ± 2.0) × 104% of the number of decays; this value corresponds to log...
1. DECAY OF ENVIRONMENTAL ~(137)Cs [J] . Joel I. Cehn Health Physics: Official Journal of the Health Physics Society . 2007,第4期 机译:〜(137)Cs的环境衰减 2. Cs-135/Cs-137 isotopic composition of environmental samples across Europe: Environmental transport and source term emission ...
Modeofdecay:Betaandgammaradiation Chemicalproperties:Liquidatroomtemperature, butreadilybondswithchloridestoformapowder. Whatisitusedfor? Cs-137isusedinsmallamountsforcalibrationof radiation-detectionequipment,suchasGeiger-Mueller counters.Inlargeramounts,Cs-137isusedinmedical ...
(ASPAMARD) are presented and discussed. Cs-137 levels in surface seawater have been declining to its present median value of about 3 Bq/m(3) due mainly to radioactive decay, transport processes, and the absence of new significant inputs. Pu239+141 levels in surface seawater are much lower...
[5] 任赞,王选,牛亚州,等.通过测量137Cs 的β衰变和内转换电子能谱研究其衰变特性[J].大学物理,2017,36(2): 61-65. REN Z, WANG X, NIU Y Z, et al. Study of the decay characteristic by the measurement of energy spectrum...
We also obtained a reconstructed decay-corrected cumulative Cs-GFO dataset from the fallout observatories as the initial Cs-GFO. The cumulative Cs-GFO of fallout observatories averaged 2.47 卤 0.95 kBq m (n = 39) as of Oct. 1, 2008 and displayed spatial variation similar to that in forest ...
The 134Cs/137Cs concentration ratio was calculated from the data decay corrected on 11 March 2011 Full size image Table 8.1 Concentrations of 131I, 134Cs and 137Cs in sardine and Japanese anchovy Full size table The previous report showed the summed concentration of 134Cs and 137Cs in raw ...
the remaining fraction of the surface enrichment layer (F R), the thickness of the surface enrichment layer (H s), the depth of the plough layer (H p), input fraction of the total 137Cs fallout deposition during a given year t (F t ), radioactive decay of 137Cs (k), sampling year...
aDetectable (filled black circles)137Cs in honey on a map with 20thcentury137Cs deposition to soils determined at the county scale27,28decay corrected to 2019.bCircles scaled logarithmically showing the relative magnitude of137Cs in honey on a map in Bq/kg (becquerel=nuclear disintegration per ...
In the North Pacific, the concentration of 137Cs in surface water ranged from 1.5 to 2.0 Bq m−3, decay-corrected in 2011, and displayed a horizontally homogeneous distribution (Hirose and Aoyama 2003). Southward transport of 137Cs from the sub- arctic region (north of KE) to subtropical...