LOW-ENERGY CROSS-SECTIONS FOR B-11(P,3-ALPHA)

被引：40

作者：

DAVIDSON, JM

BERG, HL

LOWRY, MM

DWARAKANATH, MR

SIERK, AJ

BATAYCSORBA, P

机构：

[1] W.K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena

来源：

NUCLEAR PHYSICS A | 1979年 / 315卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

Nuclear reactions;

D O I：

10.1016/0375-9474(79)90647-X

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The cross section for the 11B(p, 3α) reaction has been measured for lab bombarding energies from 35.4 keV to 1500 keV. The astrophysical S-factor is calculated for this range of energies and an empirical fit to S is presented. The reaction rate 〈σν〉 is calculated for temperatures up to T = 500 keV/k = 5.5 × 109 K. For the resonance at 163 keV [12C*(16.11 MeV)], the resonance cross section and width were measured to be σR = 54 ± 6 mb and Γc.m. = 5.2 ± 0.5 keV, differing somewhat from values reported in previous studies. The measured cross sections from the present work lead to the values of 〈σν〉 which are somewhat lower than those quoted previously, offering a less optimistic prospect for 11B+p as an advanced fusion fuel than previously envisioned. © 1979.

引用

页码：253 / 268

页数：16

共 15 条

[1] ENERGY-LEVELS OF LIGHT-NUCLEI A=18-20 [J].