THE STUDY OF SOME NON-SOLATED RESONANCES FOR THE 23Na （p,α）20Ne REACTION

CHENG YE-HAO; GONG KUN; ZHU GUANG-HUA; YANG JIN-GANG; DING XUN-LIANG; CHEN RUI-GUANG; JIANG CHENG-LIE

Chinese Physics C> 1979, Vol. 3> Issue(5) : 624-638

THE STUDY OF SOME NON-SOLATED RESONANCES FOR THE ²³Na （p,α）²⁰Ne REACTION

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The excitation functions of the ²³Na（p,α₀）²⁰Ne_g·s.and the ²³Na（p,α₁）²⁰Ne_lst reae-tion have been measured from E_p=1 to 2.5 MeV at θ_L=30°,150° and 30°,respectively.Around the resonance at 2.171 MeV,the excitation functions of the（p,α₀）reactionhave been measured at 12 angles,then,some angular distributions have been obtained from these excitation functions.In addition,the angular distribution of the（p,α₀）reaction for the resonance at 2.171 MeV has also been measured directly at energy ofthe resonance peak of the excitation function at 150°.For the resonance at 2.117MeV,the angular distribution have been measured at two energies,one at the energyof the resonance peak of the excitation function at 150°,another at the energy of thehalf maximum point of the resonance peak on the higher energy side.Around the re-sonance at 2.075 MeV,the excitation functions have been measured at 16 angles,andthe angular distribution has been obtained from three excitation functions.The an-gular distributions of the three resonances are not symmetric about 90°,and the posi-tions of the resonance peaks of these resonances varies with the angle of measurement.By means of the compound nucleus theory,discussions have been made for these non-solated resonances.

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[1]

J. M. Blatt and L. C. Biedenhara, Rev. Modern Phys., 24 (1952), 258.[2] J. Kuperus, P. W. M. Glaudemans and P. M. Endt, Physica, 29 (1963), 1281.[3] A. Luukko, P. Holmberg and A. Kiuru, Commentationes Physico Mathematicae, Vol. 38, Nr. 7(1970), 115.[4] P. H. Stelson and W. M. Preston, Phys. Rev., 95(1954), 974.[5] P. H. Stelson, Phys. Rev., 96 (1954), 1584.[6] Yukio Hiratate, Yuzo Takeuchi, Takashi Yamaya and Susumu Dorita, J. Phys. Soc. Japan, 24 (1968), 690.[7] C. Cisneros, J. Rickarda, M. Flores B., R. Almanza and J. Lira, Revista Mexicana de Física Vol. 21, No. 2 (1972). 115.[8] 杨金刚、李卫江、郭清江，朱光华和姜承烈，物理学报. 23 (1974), 52.[9] 强本底干扰下带电粒子能谱的测量(内部资料).[10] B. Bošnjaković, J. A. Van Best and J. Bouwmeester, Nuclear Physics, A91 (1967), 625[11] 用理论函数拟合实验曲线时可靠性的判据(内部资料).[12] E. Kashy, R. R. Perry and J. R. Risser, Phys. Rev., 117 (1960), 1089.

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CHENG YE-HAO, GONG KUN, ZHU GUANG-HUA, YANG JIN-GANG, DING XUN-LIANG, CHEN RUI-GUANG and JIANG CHENG-LIE. THE STUDY OF SOME NON-SOLATED RESONANCES FOR THE ²³Na （p,α）²⁰Ne REACTION[J]. Chinese Physics C, 1979, 3(5): 624-638.

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Received: 1978-06-12
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

THE STUDY OF SOME NON-SOLATED RESONANCES FOR THE ²³Na （p,α）²⁰Ne REACTION

Received Date: 1978-06-12
Accepted Date: 1900-01-01
Available Online: 1979-10-05

Abstract: The excitation functions of the ²³Na（p,α₀）²⁰Ne_g·s.and the ²³Na（p,α₁）²⁰Ne_lst reae-tion have been measured from E_p=1 to 2.5 MeV at θ_L=30°,150° and 30°,respectively.Around the resonance at 2.171 MeV,the excitation functions of the（p,α₀）reactionhave been measured at 12 angles,then,some angular distributions have been obtained from these excitation functions.In addition,the angular distribution of the（p,α₀）reaction for the resonance at 2.171 MeV has also been measured directly at energy ofthe resonance peak of the excitation function at 150°.For the resonance at 2.117MeV,the angular distribution have been measured at two energies,one at the energyof the resonance peak of the excitation function at 150°,another at the energy of thehalf maximum point of the resonance peak on the higher energy side.Around the re-sonance at 2.075 MeV,the excitation functions have been measured at 16 angles,andthe angular distribution has been obtained from three excitation functions.The an-gular distributions of the three resonances are not symmetric about 90°,and the posi-tions of the resonance peaks of these resonances varies with the angle of measurement.By means of the compound nucleus theory,discussions have been made for these non-solated resonances.