Download or read book Retrospective Fast Neutron Dosimetry of Nuclear Power Plants by Means of Scraping Samples Using the 93Nb n n 93mNb Reaction written by J. van Aarle and published by . This book was released on 2001 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel samples from a core component of a boiling water reactor have been investigated in order to determine the accumulated fast neutron fluence. The study was performed by means of the reaction 93Nb(n,n')93mNb. For this examination, the steel samples were taken after having been irradiated during normal operation for about 20 years. Starting with chemical separation methods, the specific activity of 93mNb in the steel samples was measured by a) inductively coupled plasma mass spectrometry, and b) total reflection X-ray fluorescence technique. From these results, the fast neutron fluence for neutron energies above 1 MeV were calculated. The fluence values determined using inductively coupled plasma mass spectrometry are in good agreement with earlier 54Mn measurements.
Download or read book Retrospective Dosimetry of Fast Neutrons Focused on the Reactions 93Nb n n 93Nbm and 54Fe n p 54Mn written by J. R. W. Woittiez and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview is given of practices for "retrospective" dosimetry based on extraction and counting of niobium and manganese present in typical pressure vessel materials. The main problem of counting structural materials is the overwhelming presence of the nuclide 60Co in the gamma-ray spectra of irradiated materials. Chemical separation of niobium and manganese is needed to determine the induced 93Nbm and 54Mn activities. Procedures have been developed for retrospective dosimetry applicable at normally equipped radiochemical laboratories. Chemical separation procedures have been applied followed by determination of the amount of niobium in dissolution after separation. Special attention has been given to the accurate counting of the very weak X rays of 93Nbm. Different techniques have been applied. Advantages, disadvantages, and the accuracy that can be achieved are discussed. Special attention has been given to the maximum accuracy that can be reached and the minimum amount of niobium that has to be collected to reach this accuracy.
Download or read book Neutron Irradiation Embrittlement of Reactor Pressure Vessel Steels written by Lendell E. Steele and published by . This book was released on 1975 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Nuclear Data written by and published by . This book was released on 1957 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of the Behaviour of Advanced Reactor Pressure Vessel Steels Under Neutron Irradiation written by International Atomic Energy Agency and published by . This book was released on 1986 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final report of an IAEA co-ordinated research programme involving nine organizations in eight Member States during the period 1977-1983. The irradiation response of seven steels typical of modern practice, in the form of plants, forgings and submerged arc welds supplied by worldwide suppliers, was determined under light water reactor pressure vessel irradiation conditions.
Download or read book Reactor Dosimetry written by Harry Farrar and published by ASTM International. This book was released on 1994 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 8th ASTM-Euratom Symposium, held in Vail, Colorado, Aug.-Sept. 1993, to provide a forum for experts to discuss their latest results under the broad theme of dosimetry for the correlation of radiation effects. Preceded by a summary of the keynote presentations and followed by summa
Download or read book Reactor Dosimetry written by J. P. Genthon and published by Springer Science & Business Media. This book was released on 1987-12-01 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Power Plant Life Management and Longer term Operation written by OECD Nuclear Energy Agency and published by OECD Publishing. This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: On cover and title page: Nuclear development
