121Sb(a, n)124I, 124Te(p, n)124I Reaksiyonları için Tesir Kesitlerinin Seviye Yoğunluğu Modelleri ile İncelenmesi

Öz

Nükleer reaksiyonların oluşma olasılıklarını ifade eden tesir kesiti kavramı nükleer fizik için oldukça önemlidir. Çalışmamızda nükleer tıp alanında önemli bir kullanım alanına sahip olan 124I radyoizotopunun üretim reaksiyonları arasında bulunan 121Sb(, n)124I, 124Te(p, n)124I reaksiyonlarının tesir kesitlerinin karşılaştırılması ile özellikle teorik hesaplamalara dayanan teorik nükleer reaksiyon modelleri yardımıyla deneysel ölçümlerin yapılamadığı değerler için bir bakış açısı elde edebilmektir. Bunun için 121Sb(, n)124I, 124Te(p, n)124I ve reaksiyonlarının en iyi üretime sahip olan seviye yoğunluğu modelleri ve enerji değerlerini literatürdeki deneysel değerlerle karşılaştırıldı.

Anahtar Kelimeler

• Tesir kesiti
• Radyoizotop
• Seviye Yoğunluğu Modelleri
• 124I

Investigation of Cross Sections for 121Sb (a, n) 124I, 124Te (p, n) 124I Reactions with Level Density Models

Öz

The cross section concept, which expresses the probability of occurrence of nuclear reactions, is very important in nuclear physics. In our study, comparing the cross-sections of the 121Sb(a, n)124I, 124Te(p, n)124I reactions, which are among the production reactions of the 124I radioisotope, which has an important area of use in nuclear medicine, and the values for which experimental measurements cannot be made, especially with the help of theoretical calculations, to get perspective. For this, the best production level density models and energy values of 121Sb(a, n)124I, 124Te(p, n)124I and reactions were compared with experimental values in the literature.

Anahtar Kelimeler

• Cross section
• radioisotope
• level density models
• 124I

Kaynakça

1. Referans1 Acerbi, E., Birattari, C., Castiglioni, M., Resmini, F. ve Villa, M. (1975). Production of 123I for medical purposes at the Milan AVF cyclotron. The International Journal Of Applied Radiation And Isotopes, 26(12), 741–747. doi:10.1016/0020-708X(75)90132-5
2. Referans2 Aydin, E. G., Tel, E., Kaplan, A. ve Aydin, A. (2008). Equilibrium and pre-equilibrium calculations of neutron production in medium-heavy targets irradiated by protons up to 100 MeV. Annals of Nuclear Energy, 35(12), 2306–2312. doi:10.1016/j.anucene.2008.08.007
3. Referans3 Calboreanu, A., Pencea, C. ve Salagean, O. (1982). The effect of gamma de-excitation competition on the (α, n) and (α, 2n) reactions on gold and antimony. Nuclear Physics, Section A, 383(2), 251–263. doi:10.1016/0375-9474(82)90451-1
4. Referans4 Demirkayık, M. (2014). FARKLI REAKSİYONLAR YOLUYLA ANTİMON HEDEFLERDEN ÜRETİLEN İYOT-124 RADYOİZOTOPUNUN TESİR KESİTLERİNİN HESAPLANMASI. KIRIKKALE ÜNİVERSİTESİ FEN BİLİMLERİ ENSTİTÜSÜ.
5. Referans5 Dilg, W., Schantl, W., Vonach, H. ve Uhl, M. (1973). Level density parameters for the back-shifted fermi gas model in the mass range 40 < A < 250. Nuclear Physics, Section A, 217(2), 269–298. doi:10.1016/0375-9474(73)90196-6
6. Referans6 Gilbert, A. ve Cameron, A. G. W. (1965). A composite nuclear-level density formula with shell corrections, 43.
7. Referans7 Goriely, S., Hilaire, S. ve Koning, A. J. (2008). Improved microscopic nuclear level densities within the Hartree-Fock-Bogoliubov plus combinatorial method. Physical Review C - Nuclear Physics, 78(6), 1–14. doi:10.1103/PhysRevC.78.064307
8. Referans8 Hassan, K. F., Qaim, S. M., Saleh, Z. A. ve Coenen, H. H. (2006). Alpha-particle induced reactions on natsb and 121sb with particular reference to the production of the medically interesting radionuclide 124i. Applied Radiation and Isotopes, 64(1), 101–109. doi:10.1016/j.apradiso.2005.07.007

9. Referans9 Ignatyuk, A. V., Istekov, K. K. and Smirenkin, G. N. (1979). The Role of Collective Effects in the Systematics of Nuclear Level Densities. Sov. J. Nucl. Phys, 29(4), 450.
10. Referans10 Ignatyuk, A. V., Istekov, K. K. and Smirenkin, G. N. (1983). Influence of Collective Effects on Neutron-to-Fission Widths Ratio in the Vicinity of N = 126 Shell. Yad.Fiz., 37, 883.
11. Referans11 Ismail, M. (1990). Measurement and analysis of the excitation function for alpha-induced reactions on Ga and Sb isotopes. Journal of Chemical Information and Modeling, 53(9), 1689–1699.
12. Referans12 Kaplan, A., Özdoğan, H., Aydin, A. ve Tel, E. (2013). Photo-neutron cross section calculations of several structural fusion materials. Journal of Fusion Energy, 32(3), 344–349. doi:10.1007/s10894-012-9575-8
13. Referans13 Kondo, K., Lambrecht, R. M. ve Wolf, A. P. (1977). Iodine-123 production for radiopharmaceuticals—XX. The International Journal of Applied Radiation and Isotopes, 28(4), 395–401. doi:10.1016/0020-708x(77)90132-6
14. Referans14 Koning A, Hilaire S, G. S. (2017). TALYS–1.8.
15. Referans15 Lilley, J. S. (2018). Nükleer Fizik İlkeler ve Uygulamalar. ( Aydın A., Sarpün İ.H., Tel E., Kaplan A.). Ankara: Nobel Yayıncılık.
16. Referans16 Meral T, E. (1985). Tıp’da Radyoizotoplar. Turkiye Klinikleri J Med Res., 3, 201–202.
17. Referans17 Scholten, B., Kovács, Z., Tárkányi, F. ve Qaim, S. M. (1995). Excitation functions of 124Te(p, xn)124,123I reactions from 6 to 31 MeV with special reference to the production of 124I at a small cyclotron. Applied Radiation and Isotopes, 46(4), 255–259. doi:10.1016/0969-8043(94)00145-P
18. Referans18 Sekerci, M. (2019). Bazı Medikal Radyoizotopların (α,xn) Reaksiyonlarıyla Üretim Tesir Kesiti Hesaplamalarında Seviye Yoğunluğu Modellerinin Etkilerinin İncelenmesi. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 9(4), 2035–2047. doi:10.21597/jist.541463
19. Referans19 Singh, B. and P. (1990). A study of pre-equilibrium emission in a-induced reactions on 121,123 Sb. Journal of Chemical Information and Modeling, 53(9), 1689–1699.
20. Referans20 Singh, B. P., Sharma, M. K., Musthafa, M. M., Bhardwaj, H. D. ve Prasad, R. (2006). A study of pre-equilibrium emission in some proton- and alpha-induced reactions. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 562(2), 717–720. doi:10.1016/j.nima.2006.02.030
21. Referans21 Tárkányi, F., Takács, S., Király, B., Szelecsényi, F., Andó, L., Bergman, J., … Ignatyuk, A. V. (2009). Excitation functions of 3He- and α-particle induced nuclear reactions on natSb for production of medically relevant 123I and 124I radioisotopes. Applied Radiation and Isotopes, 67(6), 1001–1006. doi:10.1016/j.apradiso.2009.02.067
22. Referans22 Tel, E., Aydin, E. G., Kaplan, A. ve Aydin, A. (2009). New calculations of cyclotron production cross sections of some positron emitting radioisotopes In proton induced reactions. Indian Journal of Physics, 83(2), 192–212. doi:10.1007/s12648-009-0074-3
23. Referans23 Zerkin, V. V. ve Pritychenko, B. (2018). The experimental nuclear reaction data (EXFOR): Extended computer database and Web retrieval system. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 888(January), 31–43. doi:10.1016/j.nima.2018.01.045