{"title":"中子辐照擦除LiNbO3:Fe中初等全息图","authors":"G. Mandula, R. Rupp, M. Balaskó","doi":"10.1117/12.676860","DOIUrl":null,"url":null,"abstract":"Experimental studies on the erasure effect of thermal neutron irradiation on elementary photorefractive hologram in LiNbO3:Fe single crystals are reported. This phenomenon results from the large effective cross-section of 6Li for thermal neutrons and from the large number of the electrons excited to the conduction band by the kinetic energy that is released during the neutron generated α-decay of 6Li nuclei. The excited electrons decrease the electric space-charge field of the previously recorded holographic grating and decrease its diffraction efficiency. The sensitivity threshold of the effect is better than 53 mSv (4×109 cm-2 fluence) at neutron energy of 0. 17 eV. Discussion of potential application ofthe phenomenon is also given.","PeriodicalId":266048,"journal":{"name":"International Conference on Holography, Optical Recording, and Processing of Information","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2006-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Erasure of elementary holograms in LiNbO3:Fe by neutron irradiation\",\"authors\":\"G. Mandula, R. Rupp, M. Balaskó\",\"doi\":\"10.1117/12.676860\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Experimental studies on the erasure effect of thermal neutron irradiation on elementary photorefractive hologram in LiNbO3:Fe single crystals are reported. This phenomenon results from the large effective cross-section of 6Li for thermal neutrons and from the large number of the electrons excited to the conduction band by the kinetic energy that is released during the neutron generated α-decay of 6Li nuclei. The excited electrons decrease the electric space-charge field of the previously recorded holographic grating and decrease its diffraction efficiency. The sensitivity threshold of the effect is better than 53 mSv (4×109 cm-2 fluence) at neutron energy of 0. 17 eV. Discussion of potential application ofthe phenomenon is also given.\",\"PeriodicalId\":266048,\"journal\":{\"name\":\"International Conference on Holography, Optical Recording, and Processing of Information\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-05-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Holography, Optical Recording, and Processing of Information\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.676860\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Holography, Optical Recording, and Processing of Information","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.676860","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Erasure of elementary holograms in LiNbO3:Fe by neutron irradiation
Experimental studies on the erasure effect of thermal neutron irradiation on elementary photorefractive hologram in LiNbO3:Fe single crystals are reported. This phenomenon results from the large effective cross-section of 6Li for thermal neutrons and from the large number of the electrons excited to the conduction band by the kinetic energy that is released during the neutron generated α-decay of 6Li nuclei. The excited electrons decrease the electric space-charge field of the previously recorded holographic grating and decrease its diffraction efficiency. The sensitivity threshold of the effect is better than 53 mSv (4×109 cm-2 fluence) at neutron energy of 0. 17 eV. Discussion of potential application ofthe phenomenon is also given.
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