Imperial College London
Dr Julia K Sedgbeer

Dr Julia K Sedgbeer

Faculty of Natural Sciences, Department of Physics

Distinguished Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 7811j.sedgbeer

 
 
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Location

 

526Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rakhimov:2020:10.1515/ract-2019-3129,
author = {Rakhimov, A and Barabash, AS and Basharina-Freshville, A and Blot, S and Bongrand, M and Bourgeois, C and Breton, D and Breier, R and Birdsall, E and Brudanin, VB and Buresova, H and Busto, J and Calvez, S and Cascella, M and Cerna, C and Cesar, JP and Chauveau, E and Chopra, A and Claverie, G and De, Capua S and Delalee, F and Duchesneau, D and Egorov, VG and Eurin, G and Evans, JJ and Fajt, L and Filosofov, D and Flack, R and Garrido, X and Gomez, H and Guillon, B and Guzowski, P and Hodak, R and Holy, K and Huber, A and Hugon, C and Jeremie, A and Jullian, S and Karaivanov, D and Kauer, M and Klimenko, AA and Kochetov, O and Konovalov, S and Kovalenko, V and Lang, K and Lemiere, Y and Le, Noblet T and Liptak, Z and Liu, XR and Loaiza, P and Lutter, G and Maalmi, J and Macko, M and Mamedov, F and Marquet, C and Mauger, F and Minotti, A and Mirsagatova, AA and Mirzayev, NA and Moreau, I and Morgan, B and Mott, J and Nemchenok, IB and Nomachi, M and Nova, F and Ohsumi, H and Oliviero, },
doi = {10.1515/ract-2019-3129},
journal = {Radiochimica Acta},
title = {Development of methods for the preparation of radiopure 82Se sources for the SuperNEMO neutrinoless double-beta decay experiment},
url = {http://dx.doi.org/10.1515/ract-2019-3129},
volume = {108},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A radiochemical method for producing 82Se sources with an ultra-low level of contamination of natural radionuclides (40K, decay products of 232Th and 238U) has been developed based on cation-exchange chromatographic purification with reverse removal of impurities. It includes chromatographic separation (purification), reduction, conditioning (which includes decantation, centrifugation, washing, grinding, and drying), and 82Se foil production. The conditioning stage, during which highly dispersed elemental selenium is obtained by the reduction of purified selenious acid (H2SeO3) with sulfur dioxide (SO2) represents the crucial step in the preparation of radiopure 82Se samples. The natural selenium (600 g) was first produced in this procedure in order to refine the method. The technique developed was then used to produce 2.5 kg of radiopure enriched selenium (82Se). The produced 82Se samples were wrapped in polyethylene (12 μm thick) and radionuclides present in the sample were analyzed with the BiPo-3 detector. The radiopurity of the plastic materials (chromatographic column material and polypropylene chemical vessels), which were used at all stages, was determined by instrumental neutron activation analysis. The radiopurity of the 82Se foils was checked by measurements with the BiPo-3 spectrometer, which confirmed the high purity of the final product. The measured contamination level for 208Tl was 8–54 μBq/kg, and for 214Bi the detection limit of 600 μBq/kg has been reached.
AU  - Rakhimov,A
AU  - Barabash,AS
AU  - Basharina-Freshville,A
AU  - Blot,S
AU  - Bongrand,M
AU  - Bourgeois,C
AU  - Breton,D
AU  - Breier,R
AU  - Birdsall,E
AU  - Brudanin,VB
AU  - Buresova,H
AU  - Busto,J
AU  - Calvez,S
AU  - Cascella,M
AU  - Cerna,C
AU  - Cesar,JP
AU  - Chauveau,E
AU  - Chopra,A
AU  - Claverie,G
AU  - De,Capua S
AU  - Delalee,F
AU  - Duchesneau,D
AU  - Egorov,VG
AU  - Eurin,G
AU  - Evans,JJ
AU  - Fajt,L
AU  - Filosofov,D
AU  - Flack,R
AU  - Garrido,X
AU  - Gomez,H
AU  - Guillon,B
AU  - Guzowski,P
AU  - Hodak,R
AU  - Holy,K
AU  - Huber,A
AU  - Hugon,C
AU  - Jeremie,A
AU  - Jullian,S
AU  - Karaivanov,D
AU  - Kauer,M
AU  - Klimenko,AA
AU  - Kochetov,O
AU  - Konovalov,S
AU  - Kovalenko,V
AU  - Lang,K
AU  - Lemiere,Y
AU  - Le,Noblet T
AU  - Liptak,Z
AU  - Liu,XR
AU  - Loaiza,P
AU  - Lutter,G
AU  - Maalmi,J
AU  - Macko,M
AU  - Mamedov,F
AU  - Marquet,C
AU  - Mauger,F
AU  - Minotti,A
AU  - Mirsagatova,AA
AU  - Mirzayev,NA
AU  - Moreau,I
AU  - Morgan,B
AU  - Mott,J
AU  - Nemchenok,IB
AU  - Nomachi,M
AU  - Nova,F
AU  - Ohsumi,H
AU  - Oliviero,G
AU  - Pahlka,RB
AU  - Pater,JR
AU  - Palusova,V
AU  - Perrot,F
AU  - Piquemal,F
AU  - Povinec,P
AU  - Pridal,P
AU  - Ramachers,YA
AU  - Rebii,A
AU  - Remoto,A
AU  - Richards,B
AU  - Ricol,JS
AU  - Rukhadze,E
AU  - Rukhadze,N
AU  - Saakyan,R
AU  - Sadikov,II
AU  - Salazar,R
AU  - Sarazin,X
AU  - Sedgbeer,J
AU  - Shitov,YA
AU  - Simkovic,F
AU  - Simard,L
AU  - Smetana,A
AU  - Smolek,K
AU  - Smolnikov,AA
AU  - Snow,S
AU  - Soldner-Rembold,S
AU  - Soule,B
AU  - Spavorova,M
AU  - Stekl,I
AU  - Tashimova,FA
AU  - Thomas,J
AU  - Timkin,V
AU  - Torre,S
AU  - Tretyak,V
AU  - Tretyak,V
AU  - Umatov,V
AU  - Vilela,C
AU  - Vorobel,V
AU  - Warot,G
AU  - Waters,D
AU  - Zampaolo,M
AU  - Zukauskas,A
DO  - 10.1515/ract-2019-3129
PY  - 2020///
SN  - 0033-8230
TI  - Development of methods for the preparation of radiopure 82Se sources for the SuperNEMO neutrinoless double-beta decay experiment
T2  - Radiochimica Acta
UR  - http://dx.doi.org/10.1515/ract-2019-3129
UR  - http://hdl.handle.net/10044/1/76700
VL  - 108
ER  -
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