New measurements and evaluation of excitation functions for (p,xn), (p,pxn) and (p,2pxn) reactions on ¹³³Cs up to 70 MeV proton energy

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• 作者：F. Tá ; rká ; nyi ; A. Hermanne ; S. Taká ; cs ; F. Ditr&#xf3 ; i ; B. Kirá ; ly ; H. Yamazaki ; M. Baba ; A. Mohammadi ; A.V. Ignatyuk
• 关键词：¹³³Cs target ; Proton irradiation ; Cross section ; Excitation function ; Model calculation ; ¹³¹Cs medical radionuclide
• 刊名：Applied Radiation and Isotopes
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：68
• 期：1
• 页码：47-58
• 全文大小：754 K

文摘

Cross sections for production of the therapeutic radioisotope ¹³¹Cs via the ¹³³Cs(p,3n)¹³¹Ba→¹³¹Cs route were investigated at cyclotrons. Excitation functions of the ¹³³Cs(p,x)^{133m,133mg,131mg,129g,129m,128}Ba, ^{132,129cum,127cum}Cs and ^{129m(ind),127cum,125cum}Xe nuclear reactions were measured up to 70 MeV proton energy. The experimental data were compared to the results of model calculations performed by means of ALICE-IPPE, EMPIRE-II and TALYS computer codes. Good overall agreement was observed. On the basis of the measured excitation functions integral yields were deduced. Charged particle production routes of ¹³¹Cs are discussed.