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AbstractAbstract
[en] The masses of the neutron-rich radon isotopes 223-229Rn have been determined for the first time, using the ISOLTRAP setup at CERN ISOLDE. In addition, this experiment marks the first discovery of a new nuclide, 229Rn, by Penning-trap mass measurement. The new, high-accuracy data allow a fine examination of the mass surface, via the valence-nucleon interaction δVpn. The results reveal intriguing behavior, possibly reflecting either a N=134 subshell closure or an octupolar deformation in this region
Primary Subject
Source
(c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
ALKALINE EARTH ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, EQUIPMENT, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, HOURS LIVING RADIOISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, RADIOISOTOPES, RADON ISOTOPES, SECONDS LIVING RADIOISOTOPES, SEPARATION EQUIPMENT
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The use of Solid State Nuclear Track detectors (SSNTD), LR-115 type II-Quick, is one of the convenient technique to assess the average radiation levels of alpha activities in the environment. This technique has been used to assess the Radon concentration in some areas of San Jose, Costa Rica. Exposed SSNTD films are chemically etched in an alkaline solution and the density of alpha tracks are given as concentration (pCi/L) of Radon. The only known health effect associated with exposure to elevated levels of Radon is an increased risk of developing lung cancer. (authors). 10 refs, 4 figs, 3 tabs
Original Title
Estudio preliminar de la contaminacion por gas radon en recintos habitacionales en Costa Rica
Primary Subject
Source
Available from Biblioteca Luis Demetrio Tinoco, Universidad de Costa Rica
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Tecnologia en Marcha; ISSN 0379-3982;
; v.12(4); p. 19-27

Country of publication
ALPHA DECAY RADIOISOTOPES, CENTRAL AMERICA, DATA, DAYS LIVING RADIOISOTOPES, DEVELOPING COUNTRIES, ELEMENTS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, INFORMATION, ISOTOPES, LATIN AMERICA, MEASURING INSTRUMENTS, NONMETALS, NUCLEI, RADIOISOTOPES, RADON ISOTOPES, RARE GASES, SECONDS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Borchers, W.; Arnold, E.; Neu, W.; Neugart, R.; Ulm, G.; Wendt, K.
ISOLDE Collaboration1988
ISOLDE Collaboration1988
AbstractAbstract
[en] Published in summary form only
Primary Subject
Source
Spring meeting of the Fachausschuss Kern- und Mittelenergiephysik of the Deutsche Physikalische Gesellschaft e.V; Fruehjahrstagung des Fachausschusses Kern- und Mittelenergiephysik der Deutschen Physikalischen Gesellschaft e.V; Berlin (Germany, F.R.); 21-25 Mar 1988
Record Type
Journal Article
Literature Type
Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195;
; CODEN VDPEA; v. 23(6); p. G10.3

Country of publication
ANGULAR MOMENTUM, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DIPOLE MOMENTS, ELEMENTS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, HOURS LIVING RADIOISOTOPES, ISOTOPES, MAGNETIC MOMENTS, MINUTES LIVING RADIOISOTOPES, NONMETALS, NUCLEAR PROPERTIES, NUCLEI, PARTICLE PROPERTIES, RADIOISOTOPES, RARE GASES, SPECTROSCOPY
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Holy, Karol; Moravcsik, Attila; Muellerova, Monika, E-mail: karol.holy@fmph.uniba.sk, E-mail: attila.moravcsik00@gmail.com, E-mail: monika.mullerova@fmph.uniba.sk2015
AbstractAbstract
[en] Radon and thoron in air were measured during 1 year in 30 houses at a high soil radon risk site. Unlike thoron, radon concentrations exhibited seasonal variations – they were lowest in summer and highest in winter. The mean radon-to-thoron volume activity ratio was approximately 2.8. Although the majority of the homes were built on high-radon subsoil, mean annual radon activity levels higher than the indicative 400 Bq/m3 were observed in one house only. The effect of the subsoil on the radon concentration in the houses was highest in older built before 2000. (orig.)
Original Title
Štúdium ročných variácií radónu a torónu v pobytových priestoroch v lokalite s vysokým pôdnym radónovým rizikom
Primary Subject
Secondary Subject
Source
36. radiation protection days; 36. Dni radiačnej ochrany; Poprad (Slovakia); 10-14 Nov 2014; 7 figs., 10 refs.; This record replaces 46024789
Record Type
Journal Article
Literature Type
Conference
Journal
Bezpecnost Jaderne Energie; ISSN 1210-7085;
; v. 23(1-2); p. 18-21

Country of publication
Reference NumberReference Number
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Roettger, Annette; Honig, Anja; Dersch, Rainer; Ott, Oliver; Arnold, Dirk, E-mail: Annette.roettger@ptb.de2010
AbstractAbstract
[en] Due to the short half-life of Rn-220, a primary standard for activity concentration of Rn-220 (thoron) in air (i.e. a homogeneous reference atmosphere consisting of a certified activity in a certified volume) has been considered unachievable in the past. Traceability of Rn-222 reference atmospheres is achievable using radon gas activity standards (; ) and standard volumes, and is an established method. For the short-lived radionuclide Rn-220 this procedure is not feasible, since no Rn-220 gas activity standard with a reasonable activity can be produced. This leads to a lack of traceability for measurements of Rn-220 activity concentration: only atmospheres monitored by reference instruments (i.e. secondary standards) are available. The new primary standard for the activity concentration of 220Rn developed by PTB now closes this gap in radon metrology.
Primary Subject
Source
ICRM 2009: 17. international conference on radionuclide metrology and its applications; Bratislava (Slovakia); 7-11 Sep 2009; S0969-8043(10)00020-5; Available from http://dx.doi.org/10.1016/j.apradiso.2010.01.004; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Ottawa is the capital city of Canada. In the previous cross Canada radon survey, Ottawa was not included. There is great interest to know radon level as well as thoron concentration in Ottawa homes. Therefore, radon/ thoron discrimination detectors developed at the National Inst. of Radiological Sciences in Japan were deployed in 93 houses for a period of 3 months. As expected, thoron is present in Ottawa homes. Radon concentrations ranged from 8 to 1525 Bq m-3 while thoron concentrations varied from 5 to 924 Bq m-3. The arithmetic mean of radon and thoron concentrations were found to be 110 ± 168 and 56 ± 123 Bq m-3, respectively. (authors)
Primary Subject
Secondary Subject
Source
Available from doi: http://dx.doi.org/10.1093/rpd/ncm503; Country of input: France; 24 refs
Record Type
Journal Article
Journal
Radiation Protection Dosimetry; ISSN 0144-8420;
; v. 130(2); p. 253-256

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
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External URLExternal URL
AbstractAbstract
[en] Measurements of 220Rn and 222Rn levels at Wairakei have been studied in relation to a model which considers the times taken for two separate processes, desorption of gases from the rock and fluid movement to a well. The relatively high 220Rn levels are indicative of fluid movement through porous aquifer rock. (author)
Primary Subject
Secondary Subject
Source
Simmons, S.F. (ed.); Morgan, O.E. (ed.); Dunstall, M.G. (ed.); Auckland Univ. (New Zealand). Centre for Continuing Education Auckland Univ. (New Zealand). Geothermal Institute; 320 p; ISBN 0 86869 038 4;
; 1997; p. 111-115; University of Auckland, Centre for Continuing Education; Auckland (New Zealand); 19. New Zealand Geothermal Workshop; Auckland (New Zealand); Nov 1997; Also known as Institute of Geological and nuclear Sciences contribution; 1306.

Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Sorimachi, Atsuyuki; Tokonami, Shinji; Ishikawa, Tetsuo; Takahashi, Hiroyuki; Miyahara, Nobuyuki
Proceedings of the 8. International symposium on the natural radiation environment (NRE - VIII). Book of abstracts2007
Proceedings of the 8. International symposium on the natural radiation environment (NRE - VIII). Book of abstracts2007
AbstractAbstract
No abstract available
Primary Subject
Source
Natural Radiation Environment Association (NREA), Buzios, RJ (Brazil); [239 p.]; 2007; p. 206; NRE-VIII: 8. International symposium on the natural radiation environment; Buzios, RJ (Brazil); 7-12 Oct 2007; Available from the Library of the Brazilian National Nuclear Energy Commission, Rio de Janeiro
Record Type
Miscellaneous
Literature Type
Conference
Country of publication
ALPHA DECAY RADIOISOTOPES, ASIA, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DEVELOPED COUNTRIES, ELEMENTS, EVEN-EVEN NUCLEI, FLUIDS, GASES, HEAVY NUCLEI, INTERNATIONAL ORGANIZATIONS, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NONMETALS, NUCLEI, RADIOISOTOPES, RADON ISOTOPES, RARE GASES, SECONDS LIVING RADIOISOTOPES
Reference NumberReference Number
Related RecordRelated Record
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AbstractAbstract
[en] An alpha-chamber for detection of radon in carrier gas mixtures is described. The first daughter nuclides of radon (polonium) is removed from the sensitive volume of the chamber. Consequently, the influence of these nuclides on the radon counting is decreased significantly. (author)
Source
Wand, U.; Strauch, G. (eds.); Akademie der Wissenschaften der DDR, Leipzig. Zentralinstitut fuer Isotopen- und Strahlenforschung; 688 p; 1987; p. 253-258; 4. working meeting isotopes in nature; Leipzig (German Democratic Republic); 22-26 Sep 1986; Available from Central Institute of Isotope and Radiation Research, DDR-7050 Leipzig
Record Type
Miscellaneous
Literature Type
Conference
Country of publication
ALPHA DECAY RADIOISOTOPES, CHARGED PARTICLE DETECTION, DAYS LIVING RADIOISOTOPES, DETECTION, ELEMENTS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, FLUIDS, GASES, HEAVY NUCLEI, ISOTOPES, NONMETALS, NUCLEI, RADIATION DETECTION, RADIOACTIVITY, RADIOISOTOPES, RADON ISOTOPES, RARE GASES, SECONDS LIVING RADIOISOTOPES
Reference NumberReference Number
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AbstractAbstract
[en] A radon exposure chamber was constructed. Both 222Rn and 220Rn can be injected independently or simultaneously into the chamber from separate dry sources. The airflow in the chamber can be adjusted manually in a 100% flow-through mode, 100% recirculate mode or flow-through/recirculate mode. Water vapour and aerosol particles of variable sizes are injected into the chamber through computer-controlled mechanism. The continuous radon and radon progeny concentration and working level, and aerosol concentration are constantly monitored by the microcomputer. (author)
Primary Subject
Secondary Subject
Source
International Radiation Protection Association, Montreal, Quebec (Canada); 2 v; ISBN 1-55048-657-8;
; 1992; (v.1) p. 624-627; 8. international congress of the International Radiation Protection Association (IRPA8); Montreal, Quebec (Canada); 17-22 May 1992; 4 refs., 2 figs.

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Book
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Conference
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