Determination of (n,2n) Reaction Cross Sections for Some Nuclei with Asymmetry Parameter

被引：5

作者：

Sarpun, Ismail Hakki ^{[1
]}

Yalim, Hueseyin Ali ^{[1
]}

Unal, Ridvan ^{[1
]}

Oruncak, Bekir ^{[1
]}

Aydin, Abdullah ^{[2
]}

Kaplan, Abdullah ^{[3
]}

Tel, Eyuep ^{[4
]}

机构：

[1] Afyon Kocatepe Univ, Fac Sci & Literature, TR-03040 Afyon, Turkey

[2] Kirikkale Univ, Fac Sci & Literature, TR-71450 Kirikkale, Turkey

[3] Suleyman Demirel Univ, Fac Sci & Literature, TR-32260 Isparta, Turkey

[4] Gazi Univ, Fac Sci & Literature, TR-06500 Ankara, Turkey

来源：

JOURNAL OF FUSION ENERGY | 2010年 / 29卷 / 04期

关键词：

Reaction cross-section; GDH model; Full exciton model; Semi-empirical calculation; 14.5 MEV NEUTRONS; SEMIEMPIRICAL SYSTEMATICS; OPTICAL-MODEL; TH-232; EMISSION; DENSITY; N; ALPHA; ENERGY; U-238; DECAY;

D O I：

10.1007/s10894-010-9293-z

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The (n,2n) reaction cross sections for targets of Tl-203,Tl-205, Pb-204,Pb-206,Pb-207,Pb-208, Bi-209, Th-232 and U-238 were calculated both theoretically and semi-empirically. Theoretical calculations were done using two different computer codes: PCROSS computer code for the full exciton model and ALICE/ASH-2006 computer code for the geometry dependent hybrid (GDH) model with the incident neutron energy up to 25 MeV. Semi-empirical calculations were done using formulas derived by several researchers. The obtained results have been discussed and compared with the available experimental data taken from the literature. The different nuclear reaction program codes used in the present study show considerable differences depending upon the selected energy range. Especially PCROSS calculation results show a disagreement above the incident energy of about 16 MeV for all the studied nuclei. Moreover, even though the graphs qualitatively agree in shape, they differ in magnitude below 15 MeV.

引用

页码：387 / 394

页数：8

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