Toryum ve uranyumun nötron yakalama ve eksitasyon fonksiyonlarının hesaplanması ve deneysel veriler ile kıyası

Bu çalışmada nükleer reaksiyon modelleri sınıflandırılarak 232Th ve 233U çekirdekler için düşük gelme enerjilerinde nötron yakalama ve eksiton (n,xn) reaksiyon tesir kesitlerine ait nötron yayınlanma spektrumları hesaplanmıştır. Hesaplamalar geometri bağımlı hibrid model, exciton model ve cascade exciton model, optik model ve multistep istatiksel model kullanılarak yapılmıştır. Deneysel data Uluslararası Atom Enerjisi Kurumunun ENDF/B kütüphanelerinden temin edilmiştir. Deneysel data ile teorik hesaplamalar sonucu elde edilen sonuçlar karşılaştırılmıştır.

Anahtar Kelimeler:

Hızlandırıcı kaynaklı sistem, enerji yükselteci, radyoaktif atık

Calculation of neutron capture and excitation functions of thorium and uranium and comparison with experimental data

This research was conducted to determine the most optimum sowing date of common and Narbonne vetch at the ecological conditions of Bingöl in 2015. The study was arranged in a completely randomized block design in split plots and it was conducted with two common vetch, two Narbonne vetch and three sowing date. In the study; plant height, green herbage yield, dry herbage yield, seed yield, straw yield, thousand grain weight, crude protein ratio, acid detergent fiber (ADF) and neutral detergent fiber (NDF) characteristics were investigated. According to the results, the highest values were obtained from early sowing dates. Therefore, it was concluded that the best optimum sowing date for Bingöl could be April.

Keywords:

Accelerator driven system, energy amplifier, radioactive waste,

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[1] Roche, C. and Rubbia, C., Some Preliminary Considerations on the Economical Issues of the Energy Amplifier.CERN AT/95-45 (ET), 1995.
[2] Maiorino, J.R., Carluccio, T., A review of thorium utilization as an option for advanced fuel cycles – potential option for Brazil in the future. 2004. Americas Nuclear Energy Symposium, Miami Beach, Florida, USA.
[3] Maiorino, J.R., Moreira, J.M.L., Laranjo, S.G., Busse, A., Santos, T.,. Thorium as a new primary source of nuclear energy. In: IX Congresso Brasileiro de Planejamento Energético (CBPE), SBPE, Florianópolis, Brasil, 2014.
[4] Maiorino J.R. and at al., Annals of Nuclear Energy 102 47–55, 2017.
[5] Rubbia. C., et al., Fast Neutron Incineration inthe Energy Amplifier as Alterantive to Geologic Storage: The Case of Spain. Eurupan Organization For Nuclear Research CERN/LHC/97-01 (EET), 1997.
[6] Hesketh, K., Advanced fuel designs for existing and future generations of reactors: driving factors from technical and economic points of view. Nuclear Engineering and Design, 221:277-292, 2003.
[7] Rubbia, C. and Rubio, J.A., A Tentative Programme towards a Full Scale Energy Amplifier. CERN/LHC/96-11 , Geneva,36 p. 1996.
[8] Gudowski, W., Accelerator-driven Transmutation Projects.The Importance of Nuclear Physics Research for Waste Transmutation. Nuclear Physics, A654: 436c-457c., 1999.
[9] Rubbia, C., et al. Conceptual design of a fastNeutron operated high power energy amplifier. CERN/AT/95-44(ET), 1995.
[10] Hüfner J. and Chiang C. C., Nucl. Phys. A 349, 466, 1980.
[11] Bogolubov N. N., (Moskov: Gostekhizdat), in Russian, 1946.
[12] Kaplan, A.,Aydın, A., Tel, E. and Sarer, B., “Equilibrium and Pre-Equilibrium Emissions In Proton - Induced Reactions on 203, 205Tl”, Pramana-Journal of Physics, 72 (2): 343-353, 2009.
[13] Gudima K.K., Mashnik S.G. and Toneev V.D., Nuclear Physics A401, 329, 1983.
[14] Blannand M., Vonach H.K., Global Test of Modified Precompound Decay Models Physical Review C,28(4)1475-1492, 1983.
[15] Blann M., Ann. Rev. Nucl. Sci. 25, 123, 1975.
[16] Seidel K., Seeliger D., Reif R. and Toneev V. D., Physics of Elementary Particles and Atomic Nuclei 499, 517, 1976.
[17] Barashenkov V. S. and V. Toneev D., (Atomizdat, in Russian 1972), RSIC CODE PACKAGE PSR-357, 1972.
[18] Lindner M. and at al., NEA, Data Bank, Nuclear Data Service, 10221
[19] Grumitt W.E. and at al., NEA, Data Bank, Nuclear Data Service, 12040.003
[20] Belanova T.S. and at al., NEA, Data Bank, Nuclear Data Service, 40072
[21] Chelnokov V.B. and at al., NEA, Data Bank, Nuclear Data Service, 40105
[22] Eiland H.M. and at al., NEA, Data Bank, Nuclear Data Service, 10143
[23] Hopkins J.C. and at al., NEA, Data Bank, Nuclear Data Service, 12331
[24] Cabell M.J. and at al., NEA, Data Bank, Nuclear Data Service 20459
[25] Tewes H.A. and at al., NEA, Data Bank, Nuclear Data Service, 11504
[26] Gryntakis E.M., and at al., NEA, Data Bank, Nuclear Data Service, 20625