简介：ＭｉｃｒｏｄｏｓｉｍｅｔｒｉｃＳｐｅｃｔｒｕｍａｎｄＲａｄｉａｌＤｏｓｅＤｉｓｔｒｉｂｕｔｉｏｎｏｆ２５２ＣｆαＲａｙｉｎＴＥＧａｓ￥ＺｈｕＬｉａｎｆａｎｇ；ＬｉＸｕｅｋａｎ；ＣｈｅｎＸｕｅｂｉｎｇ；ＨｅＹｕｓｈｅｎｇ；ＳｕＹｏｕｗｕａｎｄＪｉ?..

简介：WeinvestigatethesurfacestructureandcompositionofaYBa2Cu3Oy(YCO)thinfilmodifiedbyCF4plasmafluorination.Inadditiontotheabsorptionofhydrocarbons,chemicalreactionsoftheYBCOsurfacetakeplaceduringCF4plasmatreatment.Variousx-rayphotoelectronspectroscopicdataarereportedanddiscussed.Theexistenceofathinbarrierisconfirmed,whichhomogeneouslycoverstheedgeofthebaseYBCOfilminourinterfaceengineeringJosephsonjunction.MeasurementsofAugerelectronspectroscopicdataandtheresistanceversustemperatureindicatethatthebarrierisacontrollable-insulatinglayer.

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简介：Radiotherapyisacommontreatmentmodalityforheadandneckcancers,nasopharyngealcancers,primarybraintumorsandbrainmetastases.Alargenumberofpatientsintheworldwithprimaryormetastaticbraintumorswillrequirelargevolumeorwholebrainirradiationeveryyear.However,therapeuticirradiationnotonlykillstumorcells,butalsoinjuresnormalbraintissue,whichiscommonlyassociatedwithsignificantfunctionalmorbidityanddecreasedqualityoflifeinpatientstreatedwithbrainradiotherapy[1].