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Sample records for yadra tezisy dokladov

  1. Abstracts of papers of international meeting `Ecological status of territories contaminated by radionuclides`; Tezisy dokladov mezhdunarodnogo rabochego soveshchaniya `Ehkologicheskij status zagryaznennykh radionuklidami territorij`

    Energy Technology Data Exchange (ETDEWEB)

    Konoplya, E F [ed.; Natsyyanal` naya akadehmiya navuk Belarusi, Minsk (Belarus)

    1995-04-01

    The collection contains the results of investigations implemented on the territories of Belarus, Ukraine and Russia within the realization of the Chernobyl Ecological Science Network: dynamics of radionuclides migration in the environment, state of phytocenosis, metabolic and genetic effects of the Chernobyl catastrophe.

  2. International conference. The problems of radiation genetics at the turn of the century. Abstracts; Mezhdunarodnaya konferentsiya. Problemy radiatsionnoj genetiki na rubezhe vekov. Tezisy dokladov

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Information concerning International conference: The problems of radiation genetics at the turn of the century - held in Moscow, November, 2000, is presented. The conference is dedicated to the memory of Timofeev-Resovsky (centenary of birth). Analysis of the development of concepts of the radiation genetics founder concerning study of genetic radiation effects on plants, animals and man is given. Molecular-genetic mechanisms of radiation mutagenesis are considered. Problems related to the analysis of delayed genetic radiation effects on the different types. Populations and regularities in radiation-induced mutagenesis at cellular, tissue and body levels are discussed. Great attention is paid to the genetic consequences for population, flora and fauna of Chernobyl and Kyshtym accidents, nuclear explosions at Semipalatinsk test site and other emergency radiation situations.

  3. Book of abstracts of the 3rd International conference and the 3rd International School for young scientists Interaction of hydrogen isotopes with structural materials. IHISM-07; Tezisy dokladov Tret'ej mezhdunarodnoj konferentsii i Tret'ej mezhdunarodnoj Shkoly molodykh uchenykh i spetsialistov Vzaimodejstvie izotopov vodoroda s konstruktsionnymi materialami. IHISM-07

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    NONE

    2007-07-01

    The book involves abstracts of presentations at the 3rd International Conference and the 3rd International School for Young Scientists Interaction of Hydrogen Isotopes with Structural Materials (IHISM-07). The activities of Russian and foreign scientific centers associated with the use of hydrogen isotopes in power engineering, national economy and basic research are considered. The presentations cover the following areas: kinetics and interaction between hydrogen isotopes and solids including effects of radiogenic helium accumulation, hydrides and hydride transformations; structural transformations and mechanical properties; equipment and research techniques.

  4. Bibliography of Soviet Laser Developments, Number 72, July - August 1984.

    Science.gov (United States)

    1985-11-01

    automating experiments at the Institute of Atmospheric Physics of the USSR Academy of Sciences. CVSLAZAt, 8th. Tezisy dokladov. Part 2. IOF. Tomsk, 1984, 341...8217 4 w ~ ~ 1016. Vlokh , O.G. (LvGU). Electrodynamics in nonlinear optics . Elektrodinamika v nelineynoy optike. LvGU. L’vov, 1983, 83 p...Fizicheskiy institut im Lebedeva AN SSSR Physics Institute imeni Lebedev, Academy of Sciences USSR, Moscow FIANKuy Kuybyshevskiy filial Fizicheskogo instituta

  5. Translations on USSR Science and Technology, Biomedical and Behavioral Sciences, Number 39

    Science.gov (United States)

    1978-07-28

    hereditary impairment of repair processes in cells of the human body leads to such serious diseases as xeroderma pigmentosum , which is due to the...inability of skin fibroblasts to repair DNA lesions induced by ultraviolet light or x-rays. In addition to xeroderma pigmentosum , Bloom’s syndrome...in "Vsesoyuznyy simpozium po lyuminestsentnym priemnikam i preobrazovatelyam rentgenovskogo izlucheniya. 2-y. Tezisy dokladov" (Ail-Union Symposium

  6. The multiplicity of nucleus-projectile fragments in collisions of {sup 132}Xe nucleus in photoemulsion at {approx} 1 A GeV; Mnozhestvennost` fragmentov yadra-snaryada v soudareniyakh yadra {sup 132}Xe v fotoehmulsii pri {approx} 1 A GehV

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    Basova, E S; Lunkina, E E; Nasyrov, Sh Z; Petrov, N V; Sadykov, N S; Trofimova, T P; Tursunov, B P

    1992-12-01

    The experimental data for multiplicity and fragmentation cross sections for the {sup 132}Xe nucleus in photoemulsion are presented. The results are considered in the framework of various models, namely, the cascade-evaporation and cold-breakdown models taking into account a factorization principle for the fragmentation cross section. (author). 19 refs., 5 figs., 5 tabs.

  7. Book of abstracts of the VIII scientific and technical conference Young people in science; Sbornik annotatsij dokladov Vos'moj nauchno-tekhnicheskoj konferentsii Molodezh' v nauke

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    The book includes abstracts of reports made young scientists and specialists from FGOU RFYaTs-VNIIEhF (Sarov), FGOU RFYaTs-VNIITF (Snezhinsk), VNIIA (Moscow), FGOU NIIIT (Moscow), FGOU FNPTs NIIIS (Nizhnij Novgorod), OKBM (Nizhnij Novgorod), VNIINM (Moscow), TulGU (Tula). At the conference, young scientists presented reports on the following topics: Theoretical and mathematical physics; Experimental physics; Engineering; Information systems and technologies; Industrial, radiation and ecological safety

  8. Mass and energy distribution of fragments of sup 232 Th nucleus fission by 21-26. 4 MeV. alpha. -particles. Massovye i ehnergeticheskie raspredeleniya oskolkov deleniya yadra sup 232 Th. alpha. -chastitsami s ehnergiyami 21-26,4 MehV

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    Zaika, N I; Kibkalo, Yu V; Parlag, O A; Sikora, D I; Tokarev, V P; Shityuk, V A [AN Ukrainskoj SSR, Kiev (Ukrainian SSR). Inst. Yadernykh Issledovanij

    1989-04-01

    Two-parameter measurements of the mass and energy distributions of fission products in the fission of {sup 232}Th by 21.0-26.4 MeV {alpha}-particles (h=1 MeV) are conducted using the correlation method. The obtained results show that in the region under investigation the average total kinetic energies of the fission products E-bar{sub k} have no noticeable variations within the experimental error of {plus minus} 1.5 MeV and the dispersion {sigma}{sup 2}E{sub k} slowly increases. For the E-bar{sub k} mass dependence of heavy fraction the maximum is observed at A=132, that confirms a hypothesis on the influence of the closed-shell effects at the magic numbers of Z=50 and N=82. Assuming the existence of different barrier values for two models of the fission the ratio of symmetric and asymmetric fission yields are analyzed in the statistical model. It is shown that the barrier difference for two modes of fission is 1.3-1.4 MeV, which is in good agreement with the model of two fission modes.

  9. Improved method for lifetime measurements; Methode perfectionnee de mesure de la duree de vie; Usovershenstvovannyj metod izmereniya vremeni zhizni; Metodo perfeccionado para medir la vida media de los estados de excitacion

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    Weinzierl, P; Bartl, W [Oesterreichische Studiengesellschaft fuer Atomenergie, Seibersdorf (Austria)

    1962-04-15

    entre los dos detectores. El espectro de impulsos del dispositivo sumador se hace incidir sobre un analizador de un solo canal para la seleccion de la energia deseada. El rayo {gamma} (I) se detecta en otro cristal organico. Los impulsos rapidos de ambos detectores organicos pasan a un convertidor tiempo-altura de impulsos y a un analizador multicanal. Este analizador se hace actuar como puerta mediante una coincidencia lenta entre los discriminadores de alturas de impulsos. (author) [Russian] Izmerenie vremeni zhizni yadra v vozbuzhdennom sostoyanii obychno osnovano na izmerenii otstavaniya odnogo gamma-lucha (II) po otnosheniyu k drugomu gamma-luchu (I) ili k beta-chastitse. Organicheskie stsintillyatory dayut nailuchshuyu razreshayushchuyu sposobnost' po vremeni dlya izmereniya vremeni takogo raspada, no dlya slozhnykh protsessov raspada opredelenie gamma-ehnergii predstavlyaet bol'shoe znachenie i mozhet byt' luchshe vsego dostignuto stsintillyatorami s kristallom NaI(Tl). Dlya sovmestnogo ispol'zovaniya preimushchestv detektorov togo i drugogo tipa gamma-luch (II) prezhde vsego rasseivaetsya v organicheskom kristalle (stil'ben), a rasseyannyj kvant detektiruetsya kristallom Nal(Tl). Dlya osushchestvleniya bol'shikh uglov priemki mezhdu dvumya stsintillyatorami izmerenie gamma-ehnergii dostigaetsya posle slozheniya amplitudy oboikh stsintillyatsionnykh impul'sov. Dlya obespecheniya nadezhnogo dejstviya ustanovki dlya slozheniya postupayushchie iz organicheskogo kristalla impul'sy prokhodyat prezhde vsego cherez strobiruyushchuyu skhemu, kotoraya initsiiruetsya sovpadeniem mezhdu dvumya stsintillyatorami. Spektr impul'sov, postupayushchij iz ustanovki dlya slozheniya, napravlyaetsya v odnokanal'nyj analizator dlya otbora po ehnergii. Gamma-luch (I) detektiruetsya v drugom organicheskom kristalle. Bystrye impul'sy oboikh organicheskikh stsintillyatorov napravlyayutsya v amplitudno-vremennoj preobrazovatel' impul'sov i v mnogokanal'nyj analizator. EHtot analizator

  10. Resonance absorption of nuclear gamma radiation; Absorption par resonance des rayons gamma; Rezonansnaya absorbtsiya i rasseyanie yadernogo gamma-izlucheniya; Absorcion por resonancia de las radiaciones gamma en los nucleos

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    Hanna, S S; Perlow, G J [Argonne National Laboratory, Argonne, IL (United States)

    1962-01-15

    radiacion do resonancia con y sin polarizacion. Estos estudios les han conducido a una interpretacion de la estructura hiperfina en funcion de las propiedades de los estados nucleares y de la interaccion hiperfina en el hierro. Tambien han investigado los efectos de un campo magnetico externo sobre la estructura hiperfina. Por otra parte, la absorcion por resonancia en el {sup 57}Fe permitio estudiar la relacion entre la cronologia de la desintegracion de im estado nuclear y el espectro de la radiacion observada. Se realizaron observaciones detalladas sobre el espectro de las radiaciones de resonancia filtradas, en funcion del tiempo, en condiciones muy diversas. (author) [Russian] Kak pokazal Messbauehr, ispuskanie i pogloshchenie yadernogo izlucheniya bez otdachi yadra obespechivaet prostoj metod izucheniya vzaimodejstviya yader s ehlektromagnitnym izlucheniem i, chto ochen' vazhno, yavlyaetsya chrezvychajno chuvstvitel'nym sredstvom issledovaniya bol'shogo kolichestva fizicheskikh zadach. V sluchae yader zheleza-57 sozdaetsya ves'ma blagopriyatnoe polozhenie, tak kak v ehtom sluchae rezonansnoe pogloshchenie mozhet ispol'zovat'sya v kachestve ochen' chuvstvitel'nogo detektora izmeneniya chastoty ehlektromagnitnogo izlucheniya. Detal'no izuchalos' rezonansnoe pogloshchenie v zheleze-57. Intensivnost' pogloshcheniya, forma i liniya sdviga nablyudalis' v zavisimosti ot temperatury. Polyarizatsiya radioaktivnogo izlucheniya nablyudalas' posredstvom ehksperimentov s namagnichennymi istochnikami i poglotitelyami. Sverkhtonkij spektr rezonansnoj radiatsii analizirovalsya s polyarizatsiej i bez nee. EHti issledovaniya priveli k tolkovaniyu sverkhtonkoj struktury v otnoshenii svojstv yadernykh sostoyanij i sverkhtonkogo vzaimodejstviya v zheleze. Bylo rassmotreno takzhe vliyanie vneshnego magnitnogo polya na sverkhtonkuyu strukturu. Rezonansnoe pogloshchenie v zheleze-57 bylo ispol'zovano dlya izucheniya svyazi mezhdu razvitiem raspada yadernogo sostoyaniya vo vremeni i spektrom

  11. Experiments on multi-stage light intensification by electro-luminescence; Experiences sur l'intensification de la lumiere en cascade par electroluminescence; Opyty po mnogokaskadnomu svetousileniyu (fotoumnozheniyu) posredstvom ehlektrosvecheniya; Experimentos sobre intensificacion en cascada de la luminosidad por electroluminiscencia

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    Owaki, K; Nakamura, T [Kobe Kogyo Corporation, Okubo, Akashi, Hyogo (Japan)

    1962-04-15

    S fotosensible en polvo, aglomerado con plastico y moldeado. Basandose en los resultados obtenidos con un solo elemento intensificador, se construyeron intensificadores de dos y tres etapas y se efectuaron experimentos para estudiar sus caracteristicas con diferentes resistencias montadas en paralelo. Con el intensificador de tres etapas se obtuvo una amplificacion del orden de 400, para una radiacion de entrada igual a 0,3 rdlux. Estos resultados sugieren la posibilidad de obtener un mayor aumento para una radiacion de entrada menor. Los autores estiman posible aplicar estos resultados experimentales a los intensificadores solidos de imagenes disenando un dispositivo adecuado. (author) [Russian] Za poslednie gody, v kachestve odnogo iz vazhnykh primenenij ehlektroniki tverdykh tel, byl opublikovan tselyj ryad dokladov otnositel'no povysheniya yarkosti izobrazhenij s pomoshch'yu kristallicheskogo usilitelya. Predstavlyaetsya udobnym i vazhnym ispol'zovat' kristallicheskij usilitel' dlya svetousileniya (fotoumnozheniya). TSel'yu nastoyashchej ehksperimental'noj raboty yavlyaetsya povyshenie stepeni usileniya posredstvom mnogostupenchatogo kaskadirovaniya usilitelya. V nastoyashchem doklade snachala razbirayutsya ehlektricheskie i opticheskie kharakteristiki monokaskadnogo usilitelya, a zatem s tsel'yu uluchsheniya ego parametrov kratko izlagayutsya preimushchestva ispol'zovaniya parallel'nogo soprotivleniya s ehlektro- svetyashchejsya panel'yu. Bylo ispol'zovano dva tipa fotoprovodyashchej yachejki, odna iz kotorykh byla uplotnennaya yachejka iz Cds, a drugaya byla sdelana iz fotochuvstvitel'nogo poroshka Cds, sformovannogo vmeste s plasticheskim svyazyvayushchim veshchestvom. Na osnovanii rezul'tatov, poluchennykh na monokaskadnom usilitele, byli postroeny dvukhkaskadnye i trekhkaskadnye usiliteli, i ikh kharakterisgiki byli provereny dlya razlichnykh parallel'no vklyuchennykh soprotivlenij. Pri pomoshchi trekhkaskadnogo usilitelya bylo polucheno pri vkhodyashchej radiatsii v 0

  12. Transmutation doping and recoil effects in semiconductors exposed to thermal neutrons; Transmutations provoquees et effets de recul dans les semi-conducteurs exposes aux neutrons thermiques; Prisadka i sdacha v rezul'tate prevrashcheniya poluprovodnikov pod dejstviem teplovykh nejtronov; Impurificacion por transmutacion y efectos de retroceso en los semiconductores expuestos a neutrones termicos

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    Crawford, Jr, J H; Cleland, J W [Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1962-01-15

    ,2, 39 chasov. Poehtomu okolo 3 aktseptorov (Ca{sup 71}) vvodyatsya na kazhdyj donor (As{sup 75} i Se{sup 77}), i putem vybora prodolzhitel'nosti oblucheniya mozhno sokratit' kontsentratsiyu ehlektronov Se tipa ''n'' do ves'ma malykh znachenij ili prevratit' Se tipa ''n'' v tip ''p''. Period poluraspada, vedushchij k obrazovaniyu Ga71, dostatochno prodolzhitelen, tak chto podrobnaya ''radioaktivnaya titratsiya'' mozhet soprovozhdat'sya opredeleniem koehffitsienta KHolla i ehlektroprovodnosti. Opyty pokazyvayut takzhe, chto priblizitel'no odin ehlektron na kazhdyj zakhvat nejtrona udalyaetsya defektom reshetki, sozdannym otdachej yadra pri zakhvate ispuskaemykh gamma-luchej. EHti vytesnennye atomy mogut byt' vozvrashcheny obratno na svoe mesto v normal'noj reshetke putem otzhiga pri 450 Degree-Sign C. Byli proizvedeny takzhe nablyudeniya nad dejstviem otdachi v kremnie, prichem bylo ustanovleno, chto na kazhdyj zakhvat ustranyaetsya priblizitel'no 2 nositelya zaryada. Posledstviya ehtikh rezul'tatov, a takzhe rezul'taty v otnoshenii germaniya obsuzhdayutsya v funktsii ot zakhvata spektra gamma-luchej. V sur'myanistom indii zakhvat gamma-luchej iz In{sup 115} nedostatochen dlya togo, chtoby vytesnit' bol'shoe chislo yader, tak chto glavnym vozdejstviem yavlyaetsya obrazovanie Sn{sup 116}, kotoryj stanovitsya donorom pri zamene mesta v reshetke indiya. YAdernaya prisadka predstavlyaetsya perspektivnoj dlya izucheniya mnogochislennykh slozhnykh poluprovodnikov, vvedenie v kotorye primesej khimicheskim sposobom predstavlyaetsya zatrudnitel'nym. (author)