Search for the Positronium Quadrupole Interaction in Molecular Crystals
Search for the Positronium Quadrupole Interaction in Molecular Crystals
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寻找分子晶体中的正电子四极相互作用
DOI：
10.4028/www.scientific.net/msf.445-446.410
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
S. Kuten
中科院分区：
文献类型：
--
作者：
N. Suzuki;H. Saito;Y. Nagai;T. Hyodo;H. Murakami;M. Sano;I. Bondarev;S. Kuten
利用正电子离子（Ps）的各向异性磁猝灭，测量了某些分子晶体（萘和六甲基苯）中正电子离子（Ps）的有效四极相互作用。为了降低样品依赖性并获得较好的分辨率，采用了二维角相关湮灭辐射（2D-ACAR）技术。由于重正电子辐照效应，萘和六甲基苯的各向异性均未检测到。
Effective positronium(Ps) quadrupole interaction in some molecular crystals (naphthalene and hexamethylbenzene) has been measured through the anisotropic magnetic quenching of Ps. In order to reduce sample dependence and to achieve a good resolution, the twodimensional angular correlation of annihilation radiation (2D-ACAR) technique has been used. Anisotropies in both naphthalene and hexamethylbenzene have not been detected because of the heavy positron irradiation effect.