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首页> 外文期刊>Radiation Protection Dosimetry >NEW DEVELOPMENTS AND APPLICATIONS OF SUPERHEATED EMULSIONS: WARHEAD VERIFICATION AND SPECIAL NUCLEAR MATERIAL INTERDICTION
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NEW DEVELOPMENTS AND APPLICATIONS OF SUPERHEATED EMULSIONS: WARHEAD VERIFICATION AND SPECIAL NUCLEAR MATERIAL INTERDICTION

机译：乳化液的新发展和应用：核头验证和特殊核材料间断

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摘要

In recent years, neutron detection with superheated emulsions has received renewed attention thanks to improved detector manufacturing and read-out techniques, and thanks to successful applications in warhead verification and special nuclear material (SNM) interdiction. Detectors are currently manufactured with methods allowing high uniformity of the drop sizes, which in turn allows the use of optical read-out techniques based on dynamic light scattering. Small detector cartridges arranged in 2D matrices are developed for the verification of a declared warhead without revealing its design. For this application, the enabling features of the emulsions are that bubbles formed at different times cannot be distinguished from each other, while the passive nature of the detectors avoids the susceptibility to electronic snooping and tampering. Large modules of emulsions are developed to detect the presence of shielded special nuclear materials hidden in cargo containers 'interrogated' with high energy X-rays. In this case, the enabling features of the emulsions are photon discrimination, a neutron detection threshold close to 3 MeV and a rate-insensitive read-out.
机译：近年来，得益于改进的探测器制造和读出技术，以及由于在弹头验证和特殊核材料（SNM）拦截方面的成功应用，使用过热乳剂的中子探测受到了新的关注。当前，探测器的制造方法允许液滴尺寸高度均匀，从而允许使用基于动态光散射的光学读出技术。开发了以二维矩阵布置的小型探测器弹药筒，用于验证已声明的战斗部而不会透露其设计。对于该应用，乳剂的使能特征是在不同时间形成的气泡不能彼此区分，而检测器的被动特性避免了对电子监听和篡改的敏感性。开发了大型乳剂模块，以检测隐藏在被高能X射线“询问”的货柜中的被屏蔽的特殊核材料的存在。在这种情况下，乳剂的使能特征是光子辨别，接近3 MeV的中子检测阈值和对速率不敏感的读数。

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  • 来源
    《Radiation Protection Dosimetry》 |2018年第4期|210-214|共5页
  • 作者

    dErrico F.; Chierici A.; Gattas-Sethi M.; Philippe S.; Goldston R.; Glaser A.;

  • 作者单位

    Univ Pisa, Scuola Ingn, Pisa, Italy;

    Univ Pisa, Scuola Ingn, Pisa, Italy;

    Yale Univ, Sch Med, New Haven, CT 06520 USA;

    Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA;

    Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA;

    Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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