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不同粒子成核的声空化核效应分析 被引量:1

Analysis of Nuclear Effect of Acoustic Cavitation Nucleated by Different Particles
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摘要 本文利用2.45MeV的快中子和5.5MeV的α粒子作为成核粒子进行声空化核效应(NEAC)的实验研究。实验测得,超声期间的中子计数大于非超声期间的中子计数,计数差具有统计意义。并测定了实验前后的测试液氚含量,发现实验后液体中氚含量大于实验前。实验结果显示了不同粒子成核的NEAC。从载能粒子与物质相互作用的角度,用解析式估算比较两种粒子在水中的射程,阐述快中子成核与α粒子成核的特征,根据实验结果探讨两种载能粒子在NEAC中的作用。 Nuclear effect of acoustic cavitation(NEAC)nucleated by 2.45 MeV fast neutrons and 5.5 MeV α particles was investigated.The experimental results show that cavitation neutron counts(Ccav.on) are higher than cavitation-free neutron counts(Ccav.off) and the difference between Ccav.on and Ccav.off is statistically significant.Besides,tritium contents of test liquids were measured before and after experiments,which further verified NEAC nucleated by different particles.The features of nucleation induced by fast neutrons and α particles were explained based on the ranges of these neutrons and α particles in water.
出处 《原子能科学技术》 EI CAS CSCD 北大核心 2013年第6期1023-1028,共6页 Atomic Energy Science and Technology
基金 国家自然科学基金资助项目(10974145) 上海市重点学科第三期资助项目(S30109)
关键词 声空化核效应 空化泡 快中子 Α粒子 nuclear effect of acoustic cavitation cavitation bubble fast neutron α particle
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参考文献9

  • 1MOSS W C, CLARKE D B, WHITE J W, et al. Sonoluminesence and the prospects for table-top micro-thermonuclear fusion[J]. Phys Lett, 1996, 211: 69-74.
  • 2TALEYARKHAN R P, WEST C D, CHO J S, et al. Evidence for nuclear emissions during a- coustic cavitation [J]. Science, 2002, 5561 (295).. 1 868-1 873.
  • 3TALEYARKHAN R P, CHO J S, WEST C D, et al. Additional evidence of nuclear emissions during acoustic cavitation[J]. Physical Review E, 2004, 69.. 036109.
  • 4TALEYARKHAN R P, WEST C D, LAHEY R T, et al. Nuclear emissions during self-nucleared acoustic cavitation[J]. Physical Review Letters, 2006, 96: 034301.
  • 5CAMARA C G, HOPKINS S D, SUSLICK K S, et al. Upper bound for neutron emission from sonoluminescing bubbles in deuterated acetone [J]. Physical Review Letters, 2007, 98: 06430.
  • 6艾小白.声致发光能否引发“气泡核聚变”[J].激光与光电子学进展,2002,39(5):1-2. 被引量:3
  • 7李欣年,朱晓娟,范祥祥,方晓明,钱梦騄,程茜.声核中子测量的屏蔽设计[J].原子能科学技术,2011,45(11):1346-1351. 被引量:2
  • 8吴治华.核物理实验[M].北京:原子能出版社,1984:17-24.
  • 9程茜,周政,姜学平,等.声空化核效应的中子成核的初步研究[C]//2010年中国声学学会年会论文集.哈尔滨:声学技术杂志编辑部,2010.

二级参考文献5

  • 1赵新辉,谷德山,任万彬,刘林茂.基于MCNP程序模拟的14 MeV中子准直屏蔽材料的研究[J].东北师大学报(自然科学版),2006,38(4):59-63. 被引量:16
  • 2JJG852-2006中子周围剂量当量(率)仪[S].北京:国家质量监督检验检疫总局,2006.
  • 3TALEYARKHAN R P, WEST C D, CHO J S, et al. Evidence for nuclear emissions during acoustic cavitation[J]. Science, 2002, 5561 (295): 1 868-1 873.
  • 4TALEYARKHAN R P, CHO J S, WEST C D, et al. Additional evidence of nuclear emissions during acoustic cavitation[J]. Physical Review E, 2004, 69: 036109.
  • 5TALEYARKHAN R P, WEST C D, LAHEY R T, Jr, et al. Nuclear emissions during self-nucleated acoustic cavitation[J]. Physical Review Letters, 2006, 96: 034301.

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