Czochralski Growth of Iron-59 Doped Calcium Tungstate Crystals and the Determination of Iron Retention by Radiochemical Analysis

1965 ◽  
Vol 112 (12) ◽  
pp. 1243 ◽  
Author(s):  
V. J. Cobb ◽  
J. R. Coleman
Keyword(s):  
Radiochemical Analysis ◽  
Czochralski Growth ◽  
Calcium Tungstate ◽  
Iron Retention

scholarly journals Alpha spectrometry in radiochemical analysis and its application in the study of the natural environment

2016 ◽  
Vol 71 (1) ◽  
pp. 151 ◽  
Author(s):  
Bogdan Skwarzec ◽  
Alicja Boryło ◽  
Dagmara Strumińska-Parulska
Keyword(s):  
Baltic Sea ◽  
Natural Environment ◽  
Alpha Spectrometry ◽  
Radiochemical Analysis ◽  
Natural Ecosystems ◽  
Highly Sensitive ◽  
Environmental Materials ◽  
The Impact ◽  
Radiological Studies

<p>Alpha spectrometry is a highly sensitive and modern measurement technique which can be used to radiochemical and radiological studies of the natural environment. In the paper were presented the results on application of alpha spectrometry in the study for determination of natural (<sup>210</sup>Po, <sup>210</sup>Pb, <sup>234</sup>U, <sup>238</sup>U) and artificial (<sup>238</sup>Pu, <sup>239+240</sup>Pu and <sup>241</sup>Pu) alpha and beta radionuclides in environment of Poland and Baltic Sea. Amongst the radionuclides, alpha particle emitters play the most important role as they are highly radiotoxic to organisms. The concentrations of alpha radionuclides in the environmental samples of Poland are characterized based on the environmental materials collected between 1998 and 2009. Biogeochemistry of polonium, uranium and plutonium in the southern Baltic Sea ecosystem combined with the use of radioactive disequilibrium <sup>210</sup>Po/<sup>210</sup>Pb, <sup>234</sup>U/<sup>238</sup>U and <sup>238</sup>Pu/<sup>239+240</sup>Pu and <sup>241</sup>Pu/<sup>239+240</sup>Pu allows you to identify the sources of these radionuclides in natural ecosystems. It also allows to determine their circulation in the environment (e. g. to assess the impact of the Chernobyl nuclear accident on the radioactive contamination of Poland).</p><p class="APodstawowy"> </p>

scholarly journals Intercomparison exercise on difficult to measure radionuclides in activated concrete—statistical analysis and comparison with activation calculations

2021 ◽  
Author(s):  
Anumaija Leskinen ◽  
Celine Gautier ◽  
Antti Räty ◽  
Tommi Kekki ◽  
Elodie Laporte ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Calculation Result ◽  
Nuclear Safety ◽  
Performance Assessments ◽  
Radiochemical Analysis ◽  
Intercomparison Exercise ◽  
Safety Research ◽  
Z Scores ◽  
Difficult To Measure Radionuclides

AbstractThis paper reports the results obtained in a Nordic Nuclear Safety Research project during the second intercomparison exercise for the determination of difficult to measure radionuclides in decommissioning waste. Eight laboratories participated by carrying out radiochemical analysis of 3H, 14C, 36Cl, 41Ca, 55Fe and 63Ni in an activated concrete. In addition, gamma emitters, namely 152Eu and 60Co, were analysed. The assigned values were derived from the submitted results according to ISO 13,528 standard and the performance assessments were determined using z scores. The measured results were compared with activation calculation result showing varying degree of comparability.

Calcium Tungstate: Czochralski Growth, Perfection, and Substitution

1962 ◽  
Vol 33 (10) ◽  
pp. 3064-3073 ◽  
Author(s):  
K. Nassau ◽  
A. M. Broyer
Keyword(s):  
Czochralski Growth ◽  
Calcium Tungstate

Calcium tungstate coprecipitation for removal of Sr interference with determination of Rb by ID-ICP-MS

Talanta ◽  
2008 ◽  
Vol 77 (2) ◽  
pp. 897-900 ◽  
Author(s):  
Y ZHU ◽  
K INAGAKI ◽  
T YARITA ◽  
K CHIBA
Keyword(s):  
Calcium Tungstate ◽  
Icp Ms

Optimization of the Czochralski Growth Process for Calcium Tungstate Detector Crystals

2009 ◽  
Vol 36 ◽  
pp. 269-270 ◽  
Author(s):  
Ch. Ciemniak ◽  
C. Coppi ◽  
A. Erb ◽  
F. von Feilitzsch ◽  
A. Gütlein ◽  
...  
Keyword(s):  
Growth Process ◽  
Czochralski Growth ◽  
Calcium Tungstate
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