摘要
讨论了非沟道粒子与晶体的相互作用及其渡越辐射,并将渡越辐射同沟道辐射进行了比较,结果表明,渡越辐射对沟道辐射的贡献主要是在长波区域使沟道辐射的本底增强;由于超晶格是由两种不同介电性能的材料交替生长而成的多层薄膜结构,它的渡越辐射比较强．正是这个特点,可望利用超晶格的渡越辐射来识别超高能粒子．
The interaction of non-channeling particles with superlattice and the problem of transitional radiation are discussed. By comparing the transitional radiation with the channeling radiation, one finds that the background of the channeling radiation is enhanced in the long wave region by the transitional radiation, and the transitional radiation of the superlattice is strong, because the superlattice is constituted with multi-layer films which are alternately grown up with two materials with different dielectric properties. Thus, particles with ultra-high energy might be identified by using the property of the transitional radiation of superlattice.
出处
《高能物理与核物理》
CSCD
北大核心
2007年第3期320-323,共4页
High Energy Physics and Nuclear Physics
关键词
超高能
粒子识别
渡越辐射
沟道辐射
超晶格
ultra-high energy, particle identification, transitional radiation, channeling radiation, superlattice
