CROSS SECTIONS FOR PRODUCTS OF 90 MEV NEUTRONS ON CARBON (thesis)
CROSS SECTIONS FOR PRODUCTS OF 90 MEV NEUTRONS ON CARBON (thesis)
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碳上 90 MEV 中子产物的横截面（论文）
DOI：
10.1103/physrev.90.224
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发表时间：
1953
影响因子：
8.6
通讯作者：
Kellogg
中科院分区：
文献类型：
--
作者：
Kellogg
本文测定了90 Mev中子在碳上的产物的截面，它适用于几乎所有的反应。对旋转聚乙烯盘中产生的放射性进行β计数，得到了一些重碎片的截面，这些碎片的同位素和原子序数都已确定。但导致大多数重原子仅通过原子序数来鉴定。旋转圆盘法截面被归一化为Cl 2（n$2n）Cl 11截面，并将云室法截面归一化为n-p截面。用云室法测定了高能氚和氚，并与Hadley和Y~rk（6）1的结果作了比较，符合得很好。
Determinations have been made of the cross sections for the products of 90 Mev neutrons on carbon in the case of practically all reactions that occuro Beta counting of the activities generated in a rotating polyethylene disc yielded cross sections for the production of some heavy fragments~ identified as to isotope and atomic numberG Cloud chamber study yielded cross sections for almost all reactions, but resulted in the identification of most of the heavy framgents only by atomic numbero The rotating disc method cross sections were normal= ized to the cl2(n$2n)Cll cross section, and the cloud chamber method cross sections were normalized to the n-p cross sectione The relative and absolute yields of protons~ deuterons~ and tritons of high energies were determined by the cloud chamber method and compared with the results of Hadley and Y~rk(6)1 the agreement was excellento