LOW-ENERGY CROSS-SECTIONS FOR B-11(P,3ALPHA)
LOW-ENERGY CROSS-SECTIONS FOR B-11(P,3ALPHA)
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DOI：
10.1007/bf01284459
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发表时间：
1987-01-01
期刊：
影响因子：
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通讯作者：
TRAUTVETTER, HP
中科院分区：
文献类型：
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作者：
BECKER, HW;ROLFS, C;TRAUTVETTER, HP
本文研究了~（11）B（p，3α）反应的能量范围：使用质子束和a11 B固体靶或使用入射在氢喷射气体靶上的a11 B重离子束，22至1100 keV。通过运动学完全符合测量的反应机制进行了研究，表明该反应主要是由一个连续的衰减via 8Be。测量了绝对截面、α角分布和激发函数。天体物理S（E）因子已通过经验拟合数据的方法描述，得到零能截距S（0）=197±12 MeVb。利用这种反应作为聚变反应堆中的先进燃料得出的结论基本上没有改变目前的数据。
The11B(p, 3α) reaction has been investigated in the energy range fromEc.m.=22 to 1100 keV with the use of either a proton beam and a11B solid target or with the use of a11B heavy ion beam incident on a hydrogen jet gas target. The reaction mechanisms have been studied via kinematically complete coincidence measurements showing that the reaction proceeds predominantly by a sequential decay via8Be. The measurement of absolute cross sections,α-angular distributions and excitation functions is reported. The astrophysicalS(E)factor has been described by means of an empirical fit to the data, leading to a zero-energy intercept ofS(0)=197±12 MeVb. Conclusions drawn on the use of this reaction as an advanced fuel in fusion reactors remain essentially unchanged by the present data.