Determination of the radionuclide inventory in accelerator waste using calculation and radiochemical analysis

2007 ◽  
Vol 264 (1) ◽  
pp. 83-95 ◽  
Author(s):  
D. Schumann ◽  
J. Neuhausen ◽  
R. Weinreich ◽  
F. Atchison ◽  
P. Kubik ◽  
...  
Keyword(s):  
Radiochemical Analysis ◽  
Radionuclide Inventory

Determination of Bandwidths of PWR-UO2Spent Fuel Radionuclide Inventory Based on Real Operational History Data

2016 ◽  
Vol 63 (4) ◽  
pp. 2331-2335 ◽  
Author(s):  
Ivan Fast ◽  
Yuliya Aksyutina ◽  
Holger Tietze-Jaensch ◽  
Dirk Bosbach
Keyword(s):  
History Data ◽  
Radionuclide Inventory

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.

scholarly journals Analysis of long-lived radionuclides produced by proton irradiation in lead targets – γ -measurements

2013 ◽  
Vol 101 (10) ◽  
pp. 661-666 ◽  
Author(s):  
T. Lorenz ◽  
Y. Dai ◽  
D. Schumann
Keyword(s):  
Proton Beam ◽  
Radial Distribution ◽  
Proton Irradiation ◽  
Paul Scherrer Institute ◽  
Lead Target ◽  
Radiochemical Analysis ◽  
Incoming Beam ◽  
Radionuclide Inventory ◽  
Neutron Facility ◽  
Paul Scherrer

Summary The presented work aims at a radiochemical analysis of the radionuclide inventory of a solid lead target irradiated with high energetic protons in the spallation neutron facility SINQ at Paul Scherrer Institute. Lead samples from the vicinity of the beam entry have been extracted. A detailed γ-analysis shows the radial distribution of selected radionuclides relative to the incoming beam. The concentrations of these nuclides are evaluated in dependence on the proton beam profile.

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