CAJ | 학술논문

采用纯铜作为阈探测器检测声致核聚变产生的14 MeV中子。根据14 MeV中子与Cu的核反应，选择合适的放射性核素及其特征γ峰作为测量依据。中子辐照时间为50 min ，经30 min和198 min冷却，NaI探测器分别测量了超声和非超声下活化铜片的511 keV特征γ峰计数，测量结果显示，采用短冷却时间可测得62 Cu的511 keV γ特征峰，γ峰净面积计数增量ΔC均为正值，具有统计意义，在声空化条件下核反应液体中D-T反应产生的14 M eV中子发生率大于在非声空化条件下的；采用长冷却时间可测得64 Cu的511 keV γ特征峰，ΔC均为正值，具有统计意义，在声空化条件下核反应液体中D-D反应产生的2.45 MeV中子发生率大于在非声空化条件下的。由此验证了声空化核效应（NEAC），并初步分析了中子成核声空化核效应的机制。
채용순동작위역탐측기검측성치핵취변산생적14 MeV중자。근거14 MeV중자여Cu적핵반응，선택합괄적방사성핵소급기특정γ봉작위측량의거。중자복조시간위50 min ，경30 min화198 min냉각，NaI탐측기분별측량료초성화비초성하활화동편적511 keV특정γ봉계수，측량결과현시，채용단냉각시간가측득62 Cu적511 keV γ특정봉，γ봉정면적계수증량ΔC균위정치，구유통계의의，재성공화조건하핵반응액체중D-T반응산생적14 M eV중자발생솔대우재비성공화조건하적；채용장냉각시간가측득64 Cu적511 keV γ특정봉，ΔC균위정치，구유통계의의，재성공화조건하핵반응액체중D-D반응산생적2.45 MeV중자발생솔대우재비성공화조건하적。유차험증료성공화핵효응（NEAC），병초보분석료중자성핵성공화핵효응적궤제。
14 MeV neutrons originated in acoustic cavitation fusion were determined using copper threshold detector .According to the nuclear reaction of 14 MeV neutrons with copper ,the characteristic γ peaks of some radioactive nuclides were measured and the activation parameters of Cu were optimized . With neutron irradiation time of 50 min ,511 keV characteristic γpeak counts of activated copper pieces with or without ultrasonic field after 30 min and 198 min were respectively determined by NaI detector . Measurement results show that the characteristic γ peak counts of 62 Cu and 64 Cu can be respectively determined after 30 min and 198 min .511 keV characteristic γ peak net count increments are positive values and statistical significance , w hich indicates that 14 MeV and 2.45 MeV neutron generation rates originated in fusion with ultrasound are greater than that without ultrasound in nuclear reaction liquid .These results verify the nuclear effect of acoustic cavitation (NEAC) .The mechanism of NEAC nucleated by neutrons was proposed initially .