The cumulative and independent yields of various fission products within the mass range of 83–115 and 125–157 have been measured in the thermal neutron induced fission of \(^{\mathrm {241}}\hbox {Pu}\) by using radiochemical and off-line \(\gamma \)-ray spectrometric technique. From the cumulative yields, post-neutron mass yields were obtained by using the charge distribution correction. From the mass yields data, full width at tenth maximum (FWTM) of light and heavy mass wings, the average light mass (<A\(_{\mathrm {L}}>\)) and heavy mass (<A\(_{\mathrm {H}}>\)) as well as the average neutrons number (\(<\nu>\)) were obtained. The mass yield data in the \(^{\mathrm {241}}\hbox {Pu}\)(n\(_{\mathrm {th}}\), f) reaction was compared with the similar data of \(^{\mathrm {229}}\)Th(n\(_{\mathrm {th}}\), f) reaction to examine the nuclear structure effect. Surprisingly, different trends of standard I and standard II asymmetric mode of fission were seen in the two fissioning systems due to the different nuclear structure effect.

中文翻译：

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热中子引起的裂变$$ {} ^ {241} $$ 241 Pu中子后的质量分布

在热中子诱发的\（^ {\ mathrm {241}} \ hbox {Pu} \）的裂变中，已经测量出质量分数在83–115和125–157之间的各种裂变产物的累积和独立产量。放射化学和离线\（\γ\）射线光谱技术。从累积收率，通过使用电荷分布校正获得中子后质量收率。从质量产量数据，轻质量翼和重质量翼的十分之一全宽（FWTM），平均轻质量（<A \(_{\mathrm {L}}> \））和重质量（<A \（获得_ {\ mathrm {H}}> \）以及平均中子数（\（<\ nu> \））。\（^ {\ mathrm {241}} \ hbox {Pu} \）中的批量生产数据（n \（_ {\ mathrm {th}} \），f）反应与\（^ {\ mathrm {229}} \） Th（n \（_ {\ mathrm {th}} \），f）反应以检查核结构效应。出乎意料的是，由于不同的核结构效应，在两个裂变系统中发现了标准I和标准II非对称裂变模式的不同趋势。