18 results on '"Bečková, V."'
Search Results
2. Low level air radioactivity measurements in Prague, Czech Republic
- Author
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Rulík, P., Malá, H., Bečková, V., Hölgye, Z., Schlesingerová, E., Světlík, I., and Škrkal, J.
- Published
- 2009
- Full Text
- View/download PDF
3. Americium
- Author
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Malátová, I., primary and Bečková, V., additional
- Published
- 2014
- Full Text
- View/download PDF
4. Validation of an extraction chromatographic method with SrResin® for determination of 210Pb in various matrices
- Author
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Bartusková, M., Bečková, V., and John, J.
- Published
- 2006
- Full Text
- View/download PDF
5. Extraction of Pb2+ with sodium dicarbollylcobaltate in the presence of 15-crown-5
- Author
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Makrlík, E., Vaňura, P., and Bečková, V.
- Published
- 2001
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- View/download PDF
6. Extraction of lead with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5
- Author
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Makrlík, E., Vańura, P., and Bečková, V.
- Published
- 1999
- Full Text
- View/download PDF
7. Doses from Cs-137 and Sr-90 to Czech population due to milk consumption
- Author
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Bartusková, M., primary, Škrkal, J., additional, Schlesingerová, E., additional, Bečková, V., additional, and Malátová, I., additional
- Published
- 2017
- Full Text
- View/download PDF
8. List of Contributors
- Author
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Abdolahi, A., Abdolghaffari, A.H., Abdollahi, M., Achanzar, W.E., Acquisto, N.M., Adatsi, F.K., Adekola, F.A., Agarwal, D., Aizawa, H., Akbar Malekirad, A., Allen, J.A., Allison, B., Alonso Blazquez, N., Altkorn, R., Amanlou, M., Amini, M., Anand, S.S., Andres, S.A., Angelini, D.J., Angelo, G., Api, A.M., Apte, U., Armendáriz, C.R., Asha, S., Atlason, P., Attene-Ramos, M.S., Austin, C.P., Babich, M.A., Badanthadka, M., Baeeri, M., Baer, K.N., Baghaei, A., Bahadar, H., Balali-Mood, B., Balali-Mood, M., Bale, A.S., Ballantyne, B., Banasik, M., Banks, C.N., Banton, M., Baran, K.P., Barata, C., Barefoot, A.C., Barlow, S.M., Barr, D.B., Barrueto, F., Barton, C., Barton, N., Battalora, M., Bayrami, Z., Bazl, R., Beckett, R.D., Bečková, V., Beedanagari, S., Behboudi, A.F., Beilke, L.D., Beltrán, E.M., Benson, A., Bergamo, L., Bergueiro, J., Berman, F.W., Betharia, S., Bhattacharya, S., Biglar, M., Biswas, S., Black, A.T., Bloomhuff, A.B., Bloomquist, J.R., Bolduc, D.L., Bolger, P.M., Bolt, H.M., Bonventre, J.A., Borek, H.A., Borghoff, S.J., Borzelleca, J.F., Botelho, M.C., Boxall, A.B.A., Bradford, H., Brady, P.M., Broderick, M., Brown, D.A., Brown, J., Bruce, R.D., Brugge, D., Brugger, K.E., Bryant, M.A., Bucklin, M.H., Burns-Naas, L.A., Burr, S.A., Caballero, J.M., Cai, Z., Calabrese, E.J., Calvo, M., Cammack, J., Campbell, A., Canedy, T., Cantrell, F.L., Caquet, T., Carbonell, G., Carlson-Lynch, H., Carmichael, N., Carmo, H., Carr, D., Carrington, C.D., Carvalho, F., Carvalho, M., Casa-Resino, I. de la, Cash, L.J., Castranova, V., Cesnaitis, R., Chadwick, K.D., Chakraborty, P., Chan, P.P.K., Chang, S., Chapin, R.E., Chateauvieux, S., Chattopadhyay, A., Chaumot, A., Chen, G., Chen, X., Chesser, R.K., Chilakapati, J., Chojnacka, K., Chou, K., Christoforidis, J., Clark, A.K., Clewell, H.J., Clough, S.R., Coelho, P.C.S., Coggins, C.R.E., Cohen, S.M., Cole, S.D., Corcoran, G.B., Cornu, C., Corsini, E., Cory-Slechta, D.A., Costa, C., Costa, L.G., Costa, S., Covaci, A., Cowden, J., Cumpston, K.L., Curfman, E., Czerczak, S., Daam, M.A., Dahlstrom, D.L., Darracq, M.A., Darwich, A.S., Das, S.R., Davis, J.A., de la Casa Resino, I., de la Torre, A.H., de Lourdes Bastos, M., del Río, E., de Marcellus, S., Demers, P.A., de Peyster, A., Derakhshani, M., Desai, S.N., de San Andrés Larrea, M.I., Descotes, J., Devi, S.S., Devlin, J.J., de Voogt, P., Devriese, L., DeWoskin, R.S., de Zwart, D., Diederich, M., Dieter, H.H., Di Guardo, A., Đikić, D., Dincer, I., Dissanayake, V., DiZio, S.M., Dodd-Butera, T., Doke, D., Dorsey, R.M., Dougherty, M.M., Dourson, M.L., Drake, V.J., Duffus, J.H., Dumancas, G.G., Dumbacher, J.P., DuTeaux, S.B., Dydek, S.T., Dykens, J.A., Eagle, S.R., Eastmond, D.A., Easton, J.D., Eidemiller, B.J., Eisen, E.A., Emami, A., Emami, S., Embry, M.R., Emswiler, M.P., Erraguntla, N.K., Escribano, M., Espín, S., Estevan, C., Estévez, J., Etemad, L., Everson, G.W., Ewers, L.M., Fain, J.H., Fan, A.M., Farris, F.F., Farshchi, A., Fatoki, O.S., Feakes, D., Feasel, M., Fedoruk, M.J., Feitshans, I.L., Fent, G.M., Fernández-Tajes, J., Fernández, Á.J.G., Fernández, C., Fernández Rodríguez, M.D., Ferrari, B., Fidalgo, J., Fields, A., Finch, G.L., Finizio, A., Finnveden, G., Fitzgerald, L., Foroumadi, A., Fuentes, D., Gad, K., Gad, S.C., Gad, S.E., Gadagbui, B., Gammon, D.W., García-Fernández, A.J., García Gómez, M.C., Gardner, D.E., Garrard, A., Garric, J., Gautam, G., Geffard, O., Genter, M.B., Gevaart-Durkin, A., Ghafouri, N., Ghazali, A.R., Ghoreishi, K., Ghosh, B., Gilbert, S.G., Giordano, G., Giouleme, O., Gironés, M.C.L.R., Gobba, F., Goel, S., Gohari, A.R., Gohlke, J.M., Golbabaei, S., Gold, S.C., Gómez-López, V.M., Gómez-Ramírez, P., González-Canga, A., González, G.L., Goodman, J.E., Gordon, E., Gordon, T., Gorodetsky, R., Gray, J.P., Green, M.D., Greim, H., Griffiths, J.C., Groth, C.M., Guedes de Pinho, P., Gupta, N., Gupta, R.C., Gutiérrez, A.J., Guy, R.C., Haber, L.T., Hacatoglu, K., Hahn, K., Haines, J.A., Hakkinen, P.J., Hall, E.J., Hall, G.J., Hall, V.R., Hambright, K.D., Handler, J.A., Hansen, D.K., Hanson, K.M., Hanson, M., Hardison, L.S., Hardisson, A., Harper, S.L., Hartmann, A.C., Hartung, T., Hartwig, A., Hassani, S., Hatlelid, K.M., Hayes, A.W., Hayes, A.N., Heidari, M.R., Henderson, J., Henriksen, B., Hernández-Moreno, D., Hertzberg, R.C., Hesterberg, T., Heyndrickx, M., Hicks, D., Hikkaduwa Koralege, R.S., Hilburn, M.E., Hinderliter, P., Hines, E.P., Hirakawa, B., Hirata, C.M., Ho, S., Hobson, D.W., Hoffmann, S., Holloway, A.C., Holstege, C.P., Holstege, E., Hon, S.L., Honeycutt, M., Hong, S., Hoover, M.D., Hopf, N.B., Hopp, A.G., Horiguchi, H., Hosseini-Tabatabaei, A., Hosseini, A., Hostetler, M.A., Hsu, C.H., Huang, F.X., Hulla, J.E., Hultén, P., Hultin, M.L., Hurst, H.E., Iannucci, A., Inayat-Hussain, S.H., Inselman, A.L., Iskander, J., Jabbour, R.E., Jaberidoost, M., Jacobs, M., Jamei, M., Jamison, K.P., Janes, M., Janz, D.M., Jazayeri, S.B., Jenkins, A., Jiang, M., Jin, N., John, K., Jones, L., Jones, P.D., Jordan, S.A., Jurado, A.S., Kalapos, M.P., Kamrin, M.A., Kapp, R.W., Karami-Mohajeri, S., Karanth, S., Karimi, G., Katz, S.A., Kem, W.R., Kempegowda, P., Kennedy, G.L., Kester, J.E., Khaksar, M.R., Kharabaf, S., Khoobi, M., Kiersma, M.E., Kilpinen, J.M., Kim, D.H., Kim, S.T., Kimbrough, R.D., Klein, S.J., Knechtges, P.L., Knuckles, T.L., Knudsen, T.B., Korrapati, M.C., Koshlukova, S.E., Kovacic, P., Kraft, A., Krafts, K., Krishnan, P., Kruger, C.L., Kubic, A., Kulkarni, S., Kwok, E.S.C., Laffon, B., Lagadic, L., Lambert, C.E., Landolph, J.R., Lange, R.W., Lank, P., Lari, P., Lasley, W., Lawana, V., Lazo, C.R., Ledrich, M.-L., Le Goff, F., Lein, P.J., Leung, H.-W., Leung, Y.L., Lewandowski, T.A., Li, X., Liesivuori, J., Lim, L., Limaye, P., Lin, H.H., Lin, S.C., Litovitz, T., Liu, F., Liu, J., Lloyd-Smith, M., Lo, J.C.Y., Loccisano, A.E., Logan, P., López, S., Lord-Garcia, J., Lotti, M., Luschützky, E., Mahdaviani, P., Maier, A., Makhaeva, G.F., Malátová, I., Malekirad, A.A., Manayi, A., Mangas, I., Mangino, M., Mangipudy, R.S., Maples, R.D., Marcel, B.J., Marigómez, I., Marraffa, J.M., Martínez-López, E., Mathews, S.M., Maxim, L.D., Maxwell-Stuart, P.G., Mayor, A., McClane, B.A., McCoole, M.D., McCormick, D.B., McGregor, D., McKee, J.M., McMartin, K., Meek, B., Megharaj, M., Mehendale, H.M., Mehrpour, O., Mendes, A., Méndez, J., Menn, F.-M., Meyer, S.A., Michalak, I., Míguez-Santiyán, M.P., Mikulewicz, M., Milanez, S., Mileson, B.E., Miller, G.W., Miller, S.J., Miller, S.M., Millner, G.C., Minarchick, V.C., Miracle, A.L., Mirajkar, N.S., Mirkes, P.E., Mitra, M.S., Mody, V., Mogl, S., Mohammadirad, A., Mojica, E.-R.E., Molander, L., Molina López, A.M., Momen-Heravi, F., Montague, P., Monteiro, J.P., Monticelli, F., Morceau, F., Moreno, M., Morgan, B.W., Mortensen, S.R., Moser, V.C., Moshiri, M., Mostafalou, S., Moyer, R.A., Mumy, K.L., Munday, R., Murdianti, B.S., Murray, A., Murray, T.M., Murta, T.L., Nadri, H., Naidu, R., Naile, J.E., Naistat, D.M., Nakajima, T., Nalliah, R.E., Nance, P., Nathan, S., Navarro, L., Navas, I.M., Nelson, L.S., Nerin, C., Newsted, J., Nikfar, S., Nili-Ahmadabadi, A., Nobay, F., Nony, P., Nurkiewicz, T.R., Oi, M., Okoro, H.K., Oliveira, P.A., Olsen, L.R., Oropesa Jiménez, A.L., Othumpangat, S., Pablos, M.V., Pakulska, D., Pakzad, M., Pallasch, E.M., Pamies, D., Parihar, H.S., Parmar, M.S., Parod, R.J., Paschos, P., Patterson, J., Patterson, T.J., Patterson, T.A., Paulo Teixeira, J., Pawlaczyk, A., Pearson, M.A., Pellerano, M.B., Pellizzato, F., Perales, C.M., Peredy, T., Pereira, J., Pérez-López, M., Peri, R., Persad, A.S., Persson, H., Perwaiz, S., Peterson, M.K., Pham, P.J., Pham, T., Philip, B.K., Pichery, C., Pickett, A.J., Piña, B., Pinkerton, K.E., Pleus, R.C., Podder, S., Poirier, M.C., Pomerleau, A.C., Pope, C., Posthuma, L., Potting, J., Pournourmohammadi, S., Pravasi, S.D., Preston, R.J., Prusakov, P.A., Punja, M., Puran, A.C., Purcell, M.M., Qian, L., Qozi, M., Quintana, P.J.E., Rabiei, M., Radulovic, L.L., Rahmani, N., Rajabi, M., Raman, P., Ramasahayam, S., Ramos-Peralonso, M.J., Rankin, G.O., Rao, C.V., Rao, P.S., Rashedinia, M., Rath, A.D., Ray, D.E., Ray, S.D., Reed, N.R., Remião, F., Rezaee, R., Rezvanfar, M.A., Rezvani, N., Rhomberg, L.R., Riar, N.K., Rice, G., Richardson, J.R., Richardson, R.J., Richter, P., Rider, G., Rivera, H.L., Robbens, J., Roberts, D.J., Roberts, L.G., Robinson, P.J., Robles, H., Rodgers, B.E., Rodgers, K., Rodriguez, Y.R., Rodriguez Fernández, C., Roede, J.R., Rogawski, M.A., Rojo, L., Romano, J.A., Rose, S.R., Rosen, M.A., Rossol, M., Rostami–Hodjegan, A., Rourke, J.L., Roy, R., Roy, S.S., Rozman, K.K., Rubin, A.L., Rubio, C., Ruch, R.J., Rumbeiha, W.K., Rushton, W., Sabzevari, O., Saeedi, M., Saeid, A., Saeidnia, S., Saghir, S.A., Saili, K.S., Salem, H., Salvago, M.R. Moyano, Salvatore, J.R., San Andrés Larrea, M.D., San Andrés Larrea, M.I., Sarazan, R.D., Sardari, S., Sasaki, T., Sawant, S.P., Schaeffer, V., Schep, L.J., Schlesinger, R.B., Schneider, S.M., Schreffler, S.M., Schultz, M.M., Schwartz, M., Schwela, D., Scott, A.L., Scott, B.R., Scribner, K., Seabury, R.W., Seco, B., Seeley, M., Seifert, J., Sellamuthu, R., Serex, T.L., Sexton, K., Shadnia, S., Shafiee, A., Shah, I., Shankar, K., Sheets, L.P., Sheppard, L., Shiotsuka, R.N., Shirley, S., Shojaei Saadi, H.A., Sibbald, K.N., Sidell, F.R., Siegrist, M., Simmons, J.E., Sinal, C.J., Singh, P., Skoglund, R., Skonberg, C., Slaughter, R.J., Sledge, C.L., Slothower, J.D., Smith, M., Smith, M.T., Snider, D.B., Snyman, R.G., Sobanska, M., Sogorb, M.Á., Soler-Rodríguez, F., Solgi, R., Solomon, K.R., Somanathan, R., Sonawane, B.R., Song, X., Soni, M.G., Sorensen, J., Soucy, N.V., Southard, R.J., Spainhour, C.B., Spencer, P.S., Spiller, H.A., Spoelhof, B., Stanard, B., Stanek, L.W., Stapleton, P.A., Stedeford, T., Steidl-Nichols, J., Stephens, M., Steyn, N.P., Stickney, J., Stohs, S.J., Stone, D., Stool, D., Stork, C.M., Strohm, B., Stromberg, P.E., Sullivan, D.W., Sullivan, M.R., Sultatos, L.G., Suryanarayanan, A., Syed, I., Szabo, D.T., Szynkowska, M.I., Takacs, Z., Talaska, G., Talbot, P., Tanguay, R.L., Tarazona, J.V., Teixeira, J.P., Temple, N.J., Temple, W.A., Tena, A., Teuschler, L.K., Thackaberry, E.A., Thakore, K.N., Theodorakis, C., Thompson, R.E., Thornton, S.L., Ting, D., Tirmenstein, M.A., Touwaide, A., Towne, T.G., Traven, S.A., Tritscher, A., Troendle, M., Trosko, J.E., Tsai, W.-T., Tsai-Turton, M., Tsatsakis, A., Tsitsimpikou, C., Tsubura, A., Tsuda, T., Tyl, R.W., Udarbe Zamora, E.M., Utell, M.J., Vahabzadeh, M., Vaidya, V.S., Valdiglesias, V., Valentovic, M.A., Valerio, L.G., Vales, T., Vandenberg, L.N., van den Brink, P.J., van der Kolk, J., Van Vleet, T.R., van Vliet, E., Varga, J., Venkateswarlu, K., Verslycke, T., Versonnen, B., Verstraete, K., Vighi, M., Vilanova, E., Vincent, L., Vincent, M., Visser, R., Volger, B., von Stackelberg, K., Vulimiri, S.V., Wahl, M., Walker, N.J., Walker, T.D., Wallace, D.R., Wang, C., Wang, G.S., Wanna-Nakamura, S.C., Watson, R.E., Wattenberg, E.V., Wax, P.M., Weaver, J.A., Webber, N.R., Weber, J.A., Weber, L.P., Weinrich, A.J., Weiss, B., Wennberg, A., Wernke, M.J., Weston, A., Wexler, P., White, L.D., Whittaker, M.H., Wiedenfeld, H., Wiegand, T.J., Wikoff, D.S., Wild, C.P., Will, Y., Willett, C., Willhite, C.C., Willis, A., Willis, K., Wills, B.K., Wilson, B.W., Wittliff, J.L., Wojcinski, Z.W., Wolfe, M.S., Wood, C.S., Woodall, G.M., Woolley, A., Xia, M., Ximba, B.J., Yan, B., Yanagiba, Y., Yang, D., Yang, N., Yoon, M., Yorifuji, T., Yoshizawa, K., Young, R.A., Zamor, R.M., and Zhao, Q.J.
- Published
- 2014
- Full Text
- View/download PDF
9. A case of occupational internal contamination with 241Am.
- Author
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Fojtík, P., Malátová, I., Bečková, V., and Pfeiferová, V.
- Subjects
RESPIRATORY infections ,FIRE detectors ,NEUTRONS ,FECAL analysis ,URINALYSIS ,BIOLOGICAL assay ,PREDICTION models - Abstract
An internal contamination with 241Am was detected in a worker during a routine monitoring of workers from a company producing Am sources for smoke detectors and Am–Be neutron sources. During the 4-year period after the exposure, the number of urine and faecal samples from the worker were analysed; in vivo measurements were also performed. Specific values for absorption parameters of the human respiratory tract model and particle transport values were applied to improve the model fit to the measurement data. A good agreement of the bioassay data with the so-modified model predictions was obtained. [ABSTRACT FROM PUBLISHER]
- Published
- 2013
- Full Text
- View/download PDF
10. Reassessment of individual dosimetry of long-lived alpha radionuclides of uranium miners through experimental determination of urinary excretion of uranium.
- Author
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Malátová, I., Bečková, V., Tomášek, L., Slezáková-Marušiaková, M., and Hůlka, J.
- Subjects
RADIATION dosimetry ,RADIOISOTOPES ,URANIUM miners ,URINALYSIS ,INDUCTIVELY coupled plasma mass spectrometry ,COMPARATIVE studies - Abstract
Urinary excretion of uranium of 40 uranium miners was determined by the high-resolution inductively coupled mass spectrometry method. The concentration of uranium in the urine of the miners was converted to daily excretion of 238U either under the assumption that the daily urinary excretion is 1.6 l or daily urinary excretion of creatinine is 1.7 g and compared with the excretion of 238U calculated with a biokinetic model. Input data to the excretion model were derived from personal three- component ALGADE dosemeters, using the component for the estimation of inhalation of long-lived alpha radionuclides. Experimentally found contents of uranium in the urine of uranium miners are generally lower than the modelled ones, which means that the dosimetric approach is conservative. The uncertainty of inhalation intakes, derived from the measurements of filters from personal dosemeters, and the uncertainty of the concentration of uranium in the urine are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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11. Content of uranium in urine of uranium miners as a tool for estimation of intakes of long-lived alpha radionuclides.
- Author
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Malátová, I., Bečková, V., Tomášek, L., and Hůlka, J.
- Subjects
URANIUM miners ,URANIUM mining ,RADIOISOTOPES ,RADIATION dosimetry ,URINE - Abstract
Uranium in the urine of 10 uranium miners (hewers), 27 members of general population and 11 family members of miners was determined by the High-Resolution ICP-MS method. Concentration of uranium in urine of the miners was converted to daily excretion of 238U under the assumption that the daily excretion of urine is 2 l and compared with the modelled excretion of 238U. Daily excretion of 238U was modelled using input data from personal dosemeters from a component for measurement of intake of long-lived alpha radionuclides. A reasonable agreement between evaluated and measured values was found. The uncertainty of inhalation intakes, derived from measurements of filters from personal dosemeters, and uncertainty of concentration of uranium in urine are discussed. [ABSTRACT FROM PUBLISHER]
- Published
- 2011
- Full Text
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12. EVALUATION OF COMMITTED EFFECTIVE DOSES FROM INTERNAL CONTAMINATION OF 241AM USING EXPERIMENTALLY DETERMINED PARAMETERS OF THE CONTAMINANT.
- Author
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Malátová, I., Bečková, V., and Vrba, T.
- Subjects
RADIATION doses ,AMERICIUM ,WORK environment ,AEROSOLS ,LUNG diseases ,OCCUPATIONAL diseases ,RADIATION injuries - Abstract
Internal contamination of workers with
241 Am has occurred a few times since the beginning of the 1970s, mainly in the workplace where radionuclide sources were produced, and later on, also during liquidation of radioactive waste. Contamination in workers was measured in vivo and bioassay was performed. Solubility of aerosol in lungs was studied by in vitro dissolution test with a simulant solution of the extracellular airway lining fluids. Model calculation for the estimation of intakes was done with the experimentally obtained parameters of aerosol, with modified times of intake, with scattering factors, including Types A and B errors, and with corrections on skull size for in vivo measurements. For most cases, an acceptable fit to the experimental data was obtained; for two cases with intakes taking place long time ago (~30 y), some changes in the model are necessary. [ABSTRACT FROM AUTHOR]- Published
- 2007
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13. Validation of an extraction chromatographic method with SrResin® for determination of 210Pb in various matrices.
- Author
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Bartusková, M., Bečková, V., and John, J.
- Subjects
- *
LEAD analysis , *CHICKEN as food , *CABBAGE , *RADIOCHEMICAL analysis , *CHROMATOGRAPHIC analysis - Abstract
A radiochemical method for the determination of 210Pb in various types of samples was validated. An extraction chromatographic material Eichrom SrResin® was used for Pb separation. From the resin, Pb was eluted with 6 M HCl. The method was tested for water, inorganic and organic matrices. As a main result of the study, activity concentrations of 210Pb in 19 food samples of the main Czech food-basket items were determined. Results ranged from 0.03 ± 0.01 Bq kg−1 to 1.54 ± 0.40 Bq kg−1, fresh mass. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
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14. NEUTRON DOSE ASSESSMENT USING SAMPLES OF HUMAN BLOOD AND HAIR.
- Author
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Ekendahl D, Rubovič P, Žlebčík P, Hupka I, Huml O, Bečková V, and Malá H
- Subjects
- Czech Republic, Gamma Rays, Humans, Radiation Dosage, Radioactive Hazard Release, Radioactivity, Sodium Radioisotopes, Blood radiation effects, Hair radiation effects, Neutrons, Phosphorus Radioisotopes analysis, Radiometry methods, Sodium analysis, Sulfur analysis
- Abstract
The unique feature of nuclear accidents with neutron exposure is the induced radioactivity in body tissues. For dosimetry purposes, the most important stable isotopes occurring in human body, which can be activated by neutrons, are 23 Na and 32 S. The respective activation reactions are as follows:23Na(n,γ)24Na and32S(n,p)32P. While sodium occurs in human blood, sulfur is present in human hair. In order to verify the practical feasibility of this dosimetry technique in conditions of our laboratory, samples of human blood and hair were irradiated in a channel of a training reactor VR-1.24Na activity was measured by gamma-ray spectrometry.32P activity in hair was measured by means of a proportional counter. Based on neutron-spectrum calculation, relationships between neutron dose and induced activity were derived for both blood and hair., (© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2019
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15. EMERGENCY PREPAREDNESS OF GAMMA SPECTROMETRY LABORATORIES.
- Author
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Sloboda M, Malá H, Rulík P, and Bečková V
- Subjects
- Czech Republic, Germanium, Humans, Spectrometry, Gamma instrumentation, Civil Defense standards, Disaster Planning organization & administration, Emergencies, Laboratories standards, Radiation Monitoring standards, Spectrometry, Gamma methods
- Abstract
Currently, the territorial Radiation Monitoring Network (RMN) of the Czech Republic consists of seven laboratories equipped with gamma spectrometry High Purity Germanium (HPGe) detectors. From 2007 to 2018, five emergency exercises were carried out to test the sample throughput of these facilities and their staff. The main objective was to identify weaknesses and problem areas in the whole process from the moment of obtaining the samples to logging the results into the central RMN database. The long-term aim of these exercises is to optimize emergency response procedures. The most important factor limiting laboratory capacity is the lack of qualified personnel. The exercises showed that in the current state, these laboratories would be able to operate in 12-hour shifts for 14 days and analyze 1700 samples per day. Emergency exercises have highlighted the fact that this type of exercise should be repeated periodically in order to monitor the performance and analytical capabilities of RMN., (© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2019
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16. Urinary excretion of uranium in adult inhabitants of the Czech Republic.
- Author
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Malátová I, Bečková V, and Kotík L
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Czech Republic, Female, Humans, Male, Middle Aged, Radiation Dosage, Young Adult, Radiation Exposure, Radiation Monitoring, Uranium urine, Water Pollutants, Radioactive urine
- Abstract
The main aim of this study was to determine and evaluate urinary excretion of uranium in the general public of the Czech Republic. This value should serve as a baseline for distinguishing possible increase in uranium content in population living near legacy sites of mining and processing uranium ores and also to help to distinguish the proportion of the uranium content in urine among uranium miners resulting from inhaled dust. The geometric mean of the uranium concentration in urine of 74 inhabitants of the Czech Republic was 0.091 mBq/L (7.4 ng/L) with the 95% confidence interval 0.071-0.12 mBq/L (5.7-9.6 ng/L) respectively. The geometric mean of the daily excretion was 0.15 mBq/d (12.4 ng/d) with the 95% confidence interval 0.12-0.20 mBq/d (9.5-16.1 ng/d) respectively. Despite the legacy of uranium mines and plants processing uranium ore in the Czech Republic, the levels of uranium in urine and therefore, also human body content of uranium, is similar to other countries, esp. Germany, Slovenia and USA. Significant difference in the daily urinary excretion of uranium was found between individuals using public supply and private water wells as a source of drinking water. Age dependence of daily urinary excretion of uranium was not found. Mean values and their range are comparable to other countries, esp. Germany, Slovenia and USA., (Copyright © 2015 Elsevier Ltd. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
17. Monitoring radionuclides in the atmosphere over the Czech Republic after the Fukushima Nuclear Power Plant accident.
- Author
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Rulík P, Hýža M, Bečková V, Borecký Z, Havránek J, Hölgye Z, Lušňák J, Malá H, Matzner J, Pilátová H, Rada J, Schlesingerová E, Šindelková E, Dragounová L, and Vlček J
- Subjects
- Air Pollution, Radioactive analysis, Body Burden, Czech Republic, Environmental Exposure analysis, Half-Life, Humans, Radiation Monitoring methods, Risk Assessment, Air Pollution, Radioactive statistics & numerical data, Atmosphere chemistry, Environmental Exposure statistics & numerical data, Fukushima Nuclear Accident, Radiation Monitoring statistics & numerical data, Radioisotopes analysis
- Abstract
This paper presents the results of atmospheric radioactivity monitoring over the Czech Republic, as obtained by the Radiation Monitoring Network, following the Fukushima Dai-Ichi Nuclear Power Plant accident. Maximum values for (131)I were 5.6 mBq m(-3) in aerosol form and 13 mBq m(-3) in gaseous form. The maximum values for (134)Cs and (137)Cs were 0.64 and 0.72 mBq m(-3), respectively. The estimated effective half-time for removing the activity from the atmosphere was 6-7 d and 3.5 d for caesium and iodine, respectively. The gaseous-to-total activity ratios of (131)I ranged between 0.3 and 0.9, with an arithmetic mean value of 0.77. The mean value for the (134)Cs/(137)Cs ratios was close to 1.0. The effective inhalation dose due to the accident for an adult living in the Czech Republic was estimated at <4 × 10(-5) mSv, out of which the proportion of (131)I was 88%., (© The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2015
- Full Text
- View/download PDF
18. Particle size distribution of radioactive aerosols after the Fukushima and the Chernobyl accidents.
- Author
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Malá H, Rulík P, Bečková V, Mihalík J, and Slezáková M
- Subjects
- Cesium Radioisotopes analysis, Iodine Radioisotopes analysis, Ruthenium analysis, Zirconium analysis, Air Pollutants, Radioactive analysis, Chernobyl Nuclear Accident, Fukushima Nuclear Accident, Particle Size, Radiation Monitoring methods, Radioisotopes analysis
- Abstract
Following the Fukushima accident, a series of aerosol samples were taken between 24th March and 13th April 2011 by cascade impactors in the Czech Republic to obtain the size distribution of (131)I, (134)Cs, (137)Cs, and (7)Be aerosols. All distributions could be considered monomodal. The arithmetic means of the activity median aerodynamic diameters (AMADs) for artificial radionuclides and for (7)Be were 0.43 and 0.41 μm with GDSs 3.6 and 3.0, respectively. The time course of the AMADs of (134)Cs, (137)Cs and (7)Be in the sampled period showed a slight decrease at a significance level of 0.05, whereas the AMAD pertaining to (131)I increased at a significance level of 0.1. Results obtained after the Fukushima accident were compared with results obtained after the Chernobyl accident. The radionuclides released during the Chernobyl accident for which we determined the AMAD fell into two categories: refractory radionuclides ((140)Ba, (140)La (141)Ce, (144)Ce, (95)Zr and (95)Nb) and volatile radionuclides ((134)Cs, (137)Cs, (103)Ru, (106)Ru, (131)I, and (132)Te). The AMAD of the refractory radionuclides was approximately 3 times higher than the AMAD of the volatile radionuclides; nevertheless, the size distributions for volatile radionuclides having a mean AMAD value of 0.51 μm were very close to the distributions after the Fukushima accident., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
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