1,721,037 research outputs found
Progress report on nuclear data research in the Federal Republic of Germany: for the period April 1, 1996 to March 31, 1997
No full textAs in previous years, this report has been prepared to promote the exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from the research centres at Karlsruhe and Jülich, the universities of Dresden, Hannover, Köln, Mainz, Marburg, München as well as from the PTB Braunschweig. The emphasis in the work reported here is on measurement, compilation and evaluation of nuclear data for pure and applied science programmes, such as those relevant to fission- and fusion-reactor technology, accelerator shielding and development, astrophysics research, cosmogenic and meteoritic investigations, radiation therapy, production of medically important radioisotopes, etc. The coordination of nuclear data activities at the international level is done by two committees: the NEA-Nuclear Science Committee (NEA-NSC) and thc IAEA-International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report should therefore serve also as a background informationto some areas of work of those committees. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. When the work is relevant to the World Request List for Nuclear Data, WRENDA 93/94 (INDC(SEC)-104/U+G), the corresponding identification numbers are given
Progress report on nuclear data research in the Federal Republic of Germany : for the period April 1, 1998 to March 31, 1999
No full textAs in previous years, this report has been prepared to promote exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECDINEA and IAEA. It covers progress reports from the research centres at Karlsruhe and Jiilich, the universities of Dresden, Hannover, Koln, Mainz, Miinchen as well as from the PTB Braunschweig. The emphasis in the work reported here is on measurement, calculation, compilation and evaluation of nuclear data for applied science programmes, such as those relevant to reactor technology, transmutation concepts, accelerator shielding and development, astrophysics research, cosmogenic and meteoritic investigations, radiation therapy, production of medically important radioisotopes, etc. The coordination of nuclear data activities at the international level is done by two committees: the NEA-Nuclear Science Committee (NEA-NSC) and the IAEA-Intemational Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report should therefore also serve as a background information to some areas of work of those committees. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. When the work.is relevant to the World Request List for Nuclear Data, WRENDA 93/94 (INDC(SEC)-1041U+G), the corresponding identification numbers are given
Progress report on nuclear data research in the Federal Republic of Germany: for the period April 1, 1997 to March 31, 1998
No full textAs in previous years, this report has beeil prepared to promote the exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. lt covers progress reports from the research centres at Karlsruhe and Jülich, the universities of Dresden, Hannover, Köln, Mainz, Marburg, München as well as from. the PTB Braunschweig . The emphasis in the work reported here is an measurement, compilation and evaluation of nuclear data for pure and applied science programmes, such as those relevant to fission- and fusion-reactor technology, accelerator shielding and development, astrophysics research, cosmogenic and meteoritic investigations, radiation therapy, production of medically important radioisotopes, etc. The coordination of nuclear data activities at the international level is done by two committees: the NEA-Nuclear Science Committee (NEA-NSC) and the IAEA-International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report should therefore also serve as a background information to some areas of work of those committees. Bach contribution is presented under the laboratory heading from here the work is reported. The names of other participating laboratories are also mentioned. When the work is relevant to the World Request List for Nuclear Data, WRENDA 93/94 (INDC(SEC)-104/U+G), the corresponding identification numbers are given
Progress report on nuclear data research in the Federal Republic of Germany 1992/93 : for the period April 1, 1992 to March 31, 1993
No full textThis report has been prepared to promote the exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from KFK Karlsruhe, KFA Jülich, the universities of Dresden, Hannover, Köln, Mainz, Marburg as well as from PTB Braunschweig and FIZ Karlsruhe. The emphasis in the work reported here is on measurement, compilation and evaluation of nuclear data for pure and applied science programmes, such as those relevant to fission- and fusion-reactor technology, radioactive waste management, accelerator shielding and development, astrophysics research, cosmogenic and meteoritic investigations, production of medically important radioisotopes, etc. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. When the work is relevant to the World Request List for Nuclear Data, WRENDA 87/88 (INDC(SEC)-095/URSF), the corresponding identification numbers are given
Progress report on nuclear data research in the Federal Republic of Germany : for the period April 1, 2002 to March 31, 2003
No full textNEA/NSC/DOC(03)07 und INDC-(Ger)-049 Abstract:As in previous years, this report has been prepared to promote exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from the research centres at Karlsruhe and Jülich, the universities of Dresden, Hannover and Köln, as well as from the PTB Braunschweig. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. The emphasis in the work reported here is on nuclear data for applied science programmes, such as those relevant to reactor technology and safety, transmutation concepts, accelerator shielding and development, astrophysics research, cosmogenic and meteoritic investigations, production ofmedically important radioisotopes, etc. The coordination of nuclear data activities at the international level is done by two committees : the NEA-Nuclear Science Committee (NEANSC) and the IAEA-International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report therefore also serves as a background information to some areas of work of those committees
Progress report on nuclear data research in the Federal Republic of Germany : for the period April 1, 2003 to March 31, 2004
No full textdata research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from the research centres at Karlsruhe and Rilich, and the universities of Dresden, Hannover and Köln. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. The emphasis in the work reported here is on nuclear data for applied science programmes, such as those relevant to reactor technology and safety, transmutation concepts, accelerator shielding and development, astrophysical research, production of medically important radioisotopes, radiation therapy, etc. The coordination of nuclear data activities at the international level is done by two committees : the NEA-Nuclear Science Committee (NEA-NSC) and the IAEA-International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report therefore also serves as a background information to some areas of work of those committees. Due to certain unforeseen circumstances the report is rather delayed this year. Nonetheless, it is hoped that it will still be of interest to the readers
Progress report on nuclear data research in the Federal Republic of Germany : for the Period April 1, 1995 to March 31, 1996
No full textAs in previous years, this report has been prepared to promote the exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from the research centres at Karlsruhe and Jülich, the universities of Dresden, Hannover, Köln, Mainz, München, Stuttgart as well as from PTB Braunschweig. The emphasis in the work reported here is on measurement, compilation and evaluation of nucIear data for pure and applied science programmes, such as those relevant to fission- and fusion-reactor technology, accelerator shielding and development, astrophysics research,cosmogenic and meteoritic investigations, production of medically important radioisotopes, etc. The coordination of nucIear data activities at the international level is done by two committees: the NEA-Nuclear Science Committee (NEA-NSC) and the IAEA-International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report thus serves also as a background information to those committees. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participating laboratories are also mentioned. When the work is relevant to the World Request List for Nuclear Data, WRENDA 93/94 (INDC(SEC)-104/U+G), the corresponding identification numbers are given
Progress Report on nuclear data research in the Federal Republic of Germany - for the Period April 1, 2004 to September 30, 2005
No full textAs in previous years, this report has been prepared to promote exchange of nuclear data research information between the Federal Republic of Germany and other member states of OECD/NEA and IAEA. It covers progress reports from the researchcentres at Karlsruhe and Jülich, the universities of Dresden, Hannover and Köln, as well as from the PTB Braunschweig. Each contribution is presented under the laboratory heading from where the work is reported. The names of other participatinglaboratories are also mentioned. The emphasis in the work reported here is an nuclear data for applied science programmes, such as those relevant to reactor technology and safety, transmutation concepts, accelerator shielding and development, astrophysical research, production of medically important radioisotopes, radiation therapy, etc.The coordination of nuclear data activities at the international level is done by two committees: the NEA-Nuclear Science Committee (NEA-NSC) and the IAEA International Nuclear Data Committee (INDC). The present Editor has the privilege and the responsibility of representing Germany in both the committees. This report therefore also serves as a background information to some areas of work of those committees
Partial Neutron Capture Cross Sections of Actinides using Cold Neutron Prompt Gamma Activation Analysis
Full text linkNuclear waste needs to be characterized for its safe handling and storage. In particular long-lived actinides render the waste characterization challenging. The results described in this thesis demonstrate that Prompt Gamma Neutron Activation Analysis (PGAA) with cold neutrons is a reliable tool for the non-destructive analysis of actinides. Nuclear data required for an accurate identification and quantification of actinides was acquired. Therefore, a sample design suitable for accurate and precise measurements of prompt -ray energies and partial cross sections of long-lived actinides at existing PGAA facilities was presented. Using the developed sample design the fundamental prompt -ray data on Np, Am and Pu were measured. The data were validated by repetitive analysis of different samples at two individual irradiation and counting facilities – the BRR in Budapest and the FRM II in Garching near Munich. Employing cold neutrons, resonance neutron capture by low energetic resonances was avoided during the experiments. This is an improvement over older neutron activation based works at thermal reactor neutron energies. 152 prompt -rays of Np were identified, as well as 19 of Am, and 127 prompt -rays of Pu. In all cases, both high and lower energetic prompt -rays were identified. The most intense line of Np was observed at an energy of E = 182.82(10) keV associated with a partial capture cross section of = 22.06(39) b. The most intense prompt -ray lines of Am and of Pu were observed at E = 154.72(7) keV with = 72.80(252) b and E = 287.69(8) keV with = 7.07(12) b, respectively. The measurements described in this thesis provide the first reported quantifications on partial radiative capture cross sections for Np, Am and Pu measured simultaneously over the large energy range from 45 keV to 12 MeV. Detailed uncertainty assessments were performed and the validity of the given uncertainties was demonstrated. Compared to existing literature data on prompt -ray energies and emission probabilities the uncertainties of the data were improved. In addition to the basic nuclear data necessary for PGAA, the thermal radiative neutroncapture cross sections of Np and of Am were determined from decay measurements after neutron irradiation. The thermal radiative neutron capture cross section of Np was determined as = 176.3(47) b. The thermal radiative neutron capture cross sectionof Am was determined as = 667.7(312) b. The thermal radiative neutron capture cross section of Pu was calculated as = 21.9(15) b using nuclear structure simulations with the statistical decay code DICEBOX, constraint by the measured prompt -ray data. In the corresponding simulation the total radiative width of the capture state was found to be 28(1) meV. Also, the neutron separation energies of Np and of Pu were derived. The neutron separation energy of Np was calculated as S = 5488.02(17) keV. The neutron separation energy of Pu was calculated as S = 5036.33(59) keV. Detection limits for PGAA at FRM II were calculated for Np as 0.056 g, for Am as 0.017 g and for Pu as 0.20 g
Iodine-123 in Western Europe : production, application, distribution
No full textThe major object of this panel was to obtain informationon the state of art of Iodine-123 production in Western Europe.Technical, medical and organizational problems were discussedextensively, during the one-day meeting and a stimulatingexchange of information between the various I-producersand users has been initiated. Some specific examples of medicalapplication were also included in order to get a feeling ofthe degree of acceptance by the medical community and thedemand for this isotope. A more detailed description ofpresent medical applications of Iodine-123 can be found in theproceedings of a Conference which was held in Rockville, MarylandUSA in May 1975 [HEW Publication (FDA) 76-8033 (1976)].The meeting clearly demonstrated the great demand f or thisisotope but it also showed that the presend rate of productionis well below the demand. In order to fill this gap not onlyfurther technical development is needed but also the organizationalquestion of distribution has to be solved, perhapswithin a network of collaborating cyclotrons, a task which isconsiderably more diff icult in Western Europe than in the USA.The reason for publishing the proceedings of this panel is notonly to provide each participant with all the informationcollected during and after the meeting but also to disseminateit to those who were not able to attend the panel discussion,in particular the potential medical and pharmaceutical usersand distributors.We hope that the proceedings of the panel will further stimulatethe discussion about the production, application and distributionof Iodine-123 and that it will contribute to the solution of theproblems involved. Any comment and critique concerning theproceedings is welcome
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