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Finck, R.; Mattsson, S.
Lund Univ. (Sweden). Radiofysiska Institutionen1975
Lund Univ. (Sweden). Radiofysiska Institutionen1975
AbstractAbstract
[en] he activity-concentrations of several long-lived gamma-emitting radionuclides present in technetium generators and in eluates from these generators have been determined by means of Ge(Li) gamma-spectrometry. The principal contaminants of the eluates were: 192Ir(T sub (1/2) = 74.3 d), 134Cs (2.05 a), 131I (8.05 d), 110Ag sup (m) (255 d), 103Ru (39.5 d), 99Mo (66.7 h) and 60Co (5.26 a). Thhe impurity-concentrations were found to vary considerably from generator to generator. Changes in the impurity-concentrations in eluates from the same generator have also been recorded during an elution-period of one week. In accord with their ability to be eluted from the generators, the long-lived radionuclide-impurities may be arranged in the following sequence 134Cs > 103Ru greater than or equal to 110Ag sup (m) > 192Ir > 60Co. (author)
Source
Apr 1975; 23 p
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Report
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Mattsson, S.; Liden, K.
Lunds Lasarett (Sweden)1974
Lunds Lasarett (Sweden)1974
AbstractAbstract
[en] The accumulation, retention and internal cycling of the fallout radionuclide 137Cs (physical half-life = 30.2 a) has been studied in forest moss (Pleurozium schreberi) collected in southern Sweden (56.4 deg N, 14.3 deg E) during the period 1961-1973. The highest 137Cs-concentrations have been found in the green top parts of the living plants. The study shows that a dominating part of the deposited 137Cs is available for transport from dying to growing parts of the plants. The elimination of 137Cs from living moss-plants as well as from dead modd during the period 1968-1973 can be characterized by the same mean residence time, (4 +- 1)a. The radionuclide 137Cs and the naturally occurring stable element potassium show different behaviour in the moss vegetation, so that the 137Cs/K-ratio is higher by a factor of approximately 2 in the dead parts of the moss than in the living parts. The vertical distribution of 137Cs in the moss-covered ground has been studied down to a dry-mass depth of about 100 kg m-2 and can theoretically be described by a model which was earlier empirically deduced for lichen-covered ground (Mattsson, 1972). The relative penetration of 137Cs is around five times higher in the ground covered by moss-carpets than in the ground covered by lichen-carpets. During the period 1969-1973, the total amount of 137Cs retained in the moss-carpet was found to be 64.2 +- 2.2 nCi m-2. (author)
Primary Subject
Source
Nov 1974; 22 p
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Report
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Zakaria, M.; Raaf, C.L.; Mattsson, S.
Proceedings of the International conference on radioecology and environmental radioactivity2008
Proceedings of the International conference on radioecology and environmental radioactivity2008
AbstractAbstract
[en] The activity concentration of 137Cs, 131I, 65Zn, 60Co, 58Co, 54Mn, and 40K were determined in samples of brown seaweed (Fucus) and some other marine plants using low background high-resolution gamma-spectrometry. The algae were mainly sampled in the bay just north of the Barsebaeck NPP (55.4 N, 12.6 E) in the south of Sweden to study the contamination levels in the nearest shallow waters. One aim of the study was to investigate whether the levels were high enough to expect environmental effects. Some samples were also taken at longer distances up to 130 km from the Barsebaeck NPP. Measurable levels of the neutron activation products 65Zn (up to 17 Bq/kg dw), 60Co (100-600 Bq/kg dw), 58Co (1-160 Bq/kg dw) and 54Mn (12-90 Bq/kg dw) were found in the algae samples within a distance of 5 km from the plant. The decrease in activity concentration with distance from the plant could be described by a power function with an exponent ranging from 1.4 to 2.4. This was in fair agreement with the value for a true two-dimensional dispersion model. The present-day concentrations were found to be considerably lower than in earlier studies made in the late 1970s, especially for 65Zn and 58Co. The activity concentration of gamma emitting radio-nuclides in Fucus vesiculosus from the bay just north of Barsebaeck is today dominated by (in order of decreasing concentration): natural 40K, 60Co from the plant, 137Cs mainly from the Chernobyl debris, 54Mn and 58Co from the plant. It is not likely that any effects from the very marginal absorbed dose contribution from the Barsebaeck NPP releases can be found even in the nearest environment. The study has also shown that the eelgrass Zostera marina may be a bioindicator to use in further studies of the radiation environment in shallow water, especially for 60Co and 54Mn. (author)(tk)
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Secondary Subject
Source
Norwegian Radiation Protection Authority, Oesteraas (Norway); 341 p; ISBN 978-82-90362-26-8;
; 2008; p. 221-225; International conference on radioecology and environmental radioactivity; Bergen (Norway); 15-20 Jun 2008; Available from: Norwegian Radiation Protection Authority, Po.box 55, 1332 Oe; Posters presentations. Proceedings. Part 1. 11 refs

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Report
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Conference
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AQUATIC ECOSYSTEMS, CESIUM 137, COBALT, COMPARATIVE EVALUATIONS, ENVIRONMENTAL EFFECTS, ISOTOPES, MANGANESE 54, NUCLEAR POWER PLANTS, POLLUTION ABATEMENT, POTASSIUM 40, RADIATION DETECTION, RADIOCHEMICAL ANALYSIS, RADIOECOLOGY, RADIONUCLIDE MIGRATION, SWEDEN, WASTE MANAGEMENT, WATER CHEMISTRY, ZINC 65
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, CESIUM ISOTOPES, CHEMICAL ANALYSIS, CHEMISTRY, DAYS LIVING RADIOISOTOPES, DETECTION, DEVELOPED COUNTRIES, ECOLOGY, ECOSYSTEMS, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, ENVIRONMENTAL TRANSPORT, EUROPE, EVALUATION, EVEN-ODD NUCLEI, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LIGHT NUCLEI, MANAGEMENT, MANGANESE ISOTOPES, MASS TRANSFER, METALS, NANOSECONDS LIVING RADIOISOTOPES, NUCLEAR FACILITIES, NUCLEI, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, POTASSIUM ISOTOPES, POWER PLANTS, QUANTITATIVE CHEMICAL ANALYSIS, RADIOISOTOPES, SCANDINAVIA, THERMAL POWER PLANTS, TRANSITION ELEMENTS, WESTERN EUROPE, YEARS LIVING RADIOISOTOPES, ZINC ISOTOPES
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AbstractAbstract
[en] The work is aimed at studying the possibility of direct radionuclide concentration measurements in gaseous reactor release with a semiconducting detector (SCD) on the basis of high-frequency high-resolution germanium, as well as at applying the results of such measurements to estimate parameters of the model used and to calculate maximum permissible release. The method of identification and determination of the power of radioactive noble gas release is described. The results of calculations are compared with the experimental data. The minimum detected release power is estimated.The conclusion is made that the above detectors are applicable to measure radioactive releases both in the case of normal reactor operation and in emergencies as they can be used to estimate concentration of separate radionuclides. The application of germanium SCD enables one to obtain information on the time of release transfer in data on such short-lived daughter radionuclides as 88Rb
Original Title
Vysokochuvstvitel'nyj metod izmereniya γ-izluchayushchikh radionuklidov v gazoobraznykh vybrosakh reaktora
Source
Abridged translation from Engl. Nucl. Instrum. and Meth. Phys. Research, 1987, v. A256, N 3, p. 544-552.
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Country of publication
CALIBRATION, CESIUM 138, EFFICIENCY, EXPERIMENTAL DATA, GASEOUS WASTES, HIGH-PURITY GE DETECTORS, INTERNAL CONVERSION RADIOISOTO, IODINE 130, IODINE 131, ISOMERIC NUCLEI, KRYPTON 85, KRYPTON 87, KRYPTON 88, LIMITING VALUES, NEUTRON FLUENCE, NUCLEAR POWER PLANTS, RADIOACTIVITY, RUBIDIUM 88, RUBIDIUM 89, SENSITIVITY, XENON 131, XENON 133, XENON 138
BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CESIUM ISOTOPES, DATA, DAYS LIVING RADIOISOTOPES, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, GE SEMICONDUCTOR DETECTORS, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, IODINE ISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, KRYPTON ISOTOPES, MEASURING INSTRUMENTS, MINUTES LIVING RADIOISOTOPES, NUCLEAR FACILITIES, NUCLEI, NUMERICAL DATA, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, POWER PLANTS, RADIATION DETECTORS, RADIOISOTOPES, RUBIDIUM ISOTOPES, SEMICONDUCTOR DETECTORS, STABLE ISOTOPES, THERMAL POWER PLANTS, WASTES, XENON ISOTOPES, YEARS LIVING RADIOISOTOPES
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Nilsson, B.; Vesanen, R.; Mattsson, S.
Goeteborg Univ. (Sweden). Dept. of Radiation Physics1985
Goeteborg Univ. (Sweden). Dept. of Radiation Physics1985
AbstractAbstract
[en] The paper deals with the use of conventional liquid scintillators for the detection of the 14C level in the environment of the Swedish Ringhals nuclear power plant. As 14C is discharged through the ventilation, mainly in the form of CO2, tree's growth rings (annual rings) have been utilized as bioindicators for 14C discharge. The results precented demonstrate that it is feasible to measure an increase of some 10 per cent beyond the natural occuring 14C level in vegetation material. Any measurable increase in the 14C level in the environment of the Ringhals plant has not been demonstrated
Original Title
Analyser av C-14 i omgivningen till kaernkraftverket i Ringhals; Sweden
Primary Subject
Secondary Subject
Source
1985; 8 p; 4. Nordic seminar on radioecology; Gol (Norway); 27 Feb - 1 Mar 1985
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Miscellaneous
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Conference
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AbstractAbstract
[en] The possible ways to optimise the relation between diagnostic information and patient absorbed dose differ between nuclear medicine and X ray imaging. In nuclear medicine, very little has been done to find an optimal dosage of radiopharmaceuticals. Current nuclear medicine methods are discussed in the light of the recent ICRP Publications and the new EU Patient Directive. The paper also discusses how reference levels for administered activity may be derived from patient studies. In order to eliminate the most inappropriate choices (too low or too high activities), knowledge of the current statistical distribution of administered activities may be helpful. Different methods to estimate the amount of activity that should be administered to children of various body sizes to guarantee the same image quality as for adults are also discussed. Examples of current activity levels for common nuclear medicine procedures, indicating the state of the practice, are given. (author)
Primary Subject
Source
Workshop on reference doses and quality in medical imaging; Luxembourg (Luxembourg); 23-25 Oct 1997; Country of input: Kazakhstan
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Journal Article
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Conference
Journal
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AbstractAbstract
No abstract available
Original Title
Radiant environment
Primary Subject
Source
Miljoekunskap; 1971; 83 p; CWK Gleerup; Lund; Textbook for a survey course in pollution control at Lund Univ. and Lund Institute of Technology. 23 refs.
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Book
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Bibliography
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Ahlgren, L.; Bjurman, B.; Mattsson, S.
Statens Straalskyddsinstitut, Stockholm (Sweden)1983
Statens Straalskyddsinstitut, Stockholm (Sweden)1983
AbstractAbstract
[en] The absorbed whole-body dose to the personnel working full time with nuclear medicine investigations in vivo is found to be 1-4 m Gy/a, as measured on the film badge and corresponding to a dose equivalent of 0.7 to 2.8 m Sv. The patient is contributing 1 to 2 m Gy. The absorbed dose to the fingers of the personnel easily exceeds 500 m Sv/a emanating from the syringes and bottles. The injection of patients renders the highest exposures. If rubber gloves were not used the contamination from 1 kBq 99Tc(sub)m will be 0.5 Gy/h-1 to the skin. Latex rubber gloves will provide sufficient protection when used less than for 30 minutes. (G.B.)
Original Title
Personaldoser vid hantering av 99Tc(sup)m paa sjukhus
Primary Subject
Source
Dec 1983; 40 p; 19 refs.
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Report
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BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BODY, BUILDINGS, CLOTHING, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MEDICAL ESTABLISHMENTS, MEDICINE, NUCLEI, ODD-EVEN NUCLEI, ORGANS, PROTECTIVE CLOTHING, RADIOISOTOPES, TECHNETIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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Nilsson, M.; Mattsson, S.
Proceedings of the third NEA seminar on marine radioecology. Tokyo, 1-5 October 19791980
Proceedings of the third NEA seminar on marine radioecology. Tokyo, 1-5 October 19791980
AbstractAbstract
[en] The macroalgae Fucus vesiculosus has been used as a bioindicator for mapping the release of radionuclides from a nuclear power station into the marine environment. Both the time variation of radionuclide concentration in Fucus and its variation by distance from the power plant have been studied. The uptake and retention of different activation products in Fucus are compared. The concentration of 60Co in Idothea viridis, Idothea baltica and Gammarus oceanicus living in the Fucus plants is also given
Primary Subject
Source
Nuclear Energy Agency, 75 - Paris (France); 409 p; ISBN 92-64-02053-5;
; 1980; p. 373-380; OECD; Paris, France; Symposium on marine radioecology; Tokyo, Japan; 1 - 5 Oct 1979

Record Type
Book
Literature Type
Conference; Numerical Data
Country of publication
ALGAE, ANIMALS, AQUATIC ORGANISMS, ARTHROPODS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, COBALT ISOTOPES, DATA, DAYS LIVING RADIOISOTOPES, ECOLOGICAL CONCENTRATION, ECOLOGY, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, INVERTEBRATES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MANAGEMENT, MANGANESE ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, NUMERICAL DATA, ODD-ODD NUCLEI, PLANTS, RADIOACTIVE MATERIALS, RADIOACTIVE WASTES, RADIOISOTOPES, SEAWEEDS, SECONDS LIVING RADIOISOTOPES, SILVER ISOTOPES, SURFACE WATERS, WASTE DISPOSAL, WASTE MANAGEMENT, WASTES, YEARS LIVING RADIOISOTOPES, ZINC ISOTOPES
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Ingemansson, T.; Erlandsson, B.; Mattsson, S.
Lund Univ. (Sweden). Radiofysiska Institutionen1982
Lund Univ. (Sweden). Radiofysiska Institutionen1982
AbstractAbstract
[en] Samples of sewage sludge, lichen (Cladonia alpestris), soil and ground level air have been analysed for activation products released to the atmosphere from the three Swedish nuclear power stations at Simpevarp near Oskarshamn, Ringhals and Barsebaeck. The activity concentration of the activation products in the sludge can be arranged in the following sequence: 60Co > 65Zn > 58Co 54Mn. There is agreement between the time variation of the activity concentration in the sludge and the reported releases to the air from the power stations. The measured activity ratio 58Co/60Co in sludge does not significantly differ from that reported in the releases to the air. The activity concentration in sludge sedimented from incoming waste water has been used to get better time resolution than using only digested sludge from the final step of the plant. These studies have shown that the activity concentration of 60Co increases substantially with the first rain run-off that reaches the sewage plant and then falls off rapidly. Measurements on samples of lichen and underlying soil show that the radioactive cobalt isotopes (58Co and 60Co) have a short mean residence time in the lichen carpet compared to most fission products present in global fall-out. (author)
Primary Subject
Source
Jan 1982; 27 p; LUMEDW/MERI--3031; LUNFD6/NFFR--3042
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
AIR, ALGAE, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BIOLOGICAL MATERIALS, BIOLOGICAL WASTES, COBALT ISOTOPES, DATA, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EUROPE, EVEN-ODD NUCLEI, FLUIDS, FUNGI, GASES, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MANGANESE ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEAR FACILITIES, NUCLEI, NUMERICAL DATA, ODD-ODD NUCLEI, PLANTS, POWER PLANTS, RADIOISOTOPES, SCANDINAVIA, THERMAL POWER PLANTS, WASTES, YEARS LIVING RADIOISOTOPES, ZINC ISOTOPES
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