STUDY FOR DECAY PROCESSES OF OUTER MOST CORE HOLE IN BaF_2 BY MEANS OF PHOTO-ELECTRIC EMISSION MEASUREMENT

光电发射测量BaF_2最外层核心孔的衰变过程研究

• 批准号: 07640449
• 负责人: EJIRI Arisato
• 金额: $ 0.32万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07640449/
• 关键词: BaF_2; photoelectric emissiom; alkali earth fluoride; vacuum UV; photo luminescence; cross luminescence; STE luminescence; cesium halide; Auger process

Decay processes of outer-most core hole in barium fluoride BaF_2, as well as in other alkali earth fluorides CaF_2 and SrF_2, are studied by means of vacuum UV photoelectric emission measurement and of photoluminescence measurement by the use of synchrotron radiation as a light source. Temperature dependences of photelectric yield spectra, luminescence spectra, and excitation spectra of the luminescence are obtained at several temperatures in these measurements, photoemission from 300K to 80K and photoluminescence from 300K to 20K.The photoelectric yield spectra are absolutely measured. From these experiments, it is revealed that there are complementary relations between the photoelectric yield and cross luminescence, and also between the photoelectric yield and STE luminescence because each of them is mutually a competing process.Similar measurements in cesium halides CsCl and CsBr are also performed, and in CsBr, an interesting phenomena that Auger free process (cross luminescence) exhibits a strong temperature dependence is observed.

本文用真空紫外光电发射测量和同步辐射光致发光测量研究了氟化钡BaF_2以及其它碱土金属氟化物CaF_2和SrF_2的最外层芯孔的衰变过程。测量了不同温度下的光电产额谱、发光谱和发光激发谱的温度依赖性，光致发光范围为300 - 80 K，光致发光范围为300 - 20 K，并对光电产额谱进行了绝对测量。实验结果表明，交叉发光与光电产额之间以及STE发光与光电产额之间存在着互补关系，因为它们是相互竞争的过程.在卤化铯CsCl和CsBr中也进行了类似的测量，并在CsBr中观察到一个有趣的现象，即俄歇自由过程（交叉发光）表现出强烈的温度依赖性.

项目成果

江尻有郷,窪田信三,波田野彰,新垣邦宏: "Vacuum UV photoelectric Yield Spectra of Alkali Earth Fluorides it Severel low Temperatures" Activity Report of SRL-ISSP,University of Tokyo. 1995. 18-19 (1996)

Arisato Ejiri、Shinzo Kubota、Akira Hadano、Kunihiro Aragaki：“碱土氟化物的真空紫外光电产率光谱” SRL-ISSP 活动报告，东京大学 1995. 18-19 (1996)。

江尻有郷,窪田信三,波田野彰,新垣邦宏: "Vacuum UV Photoelectron Dinamics in Alkali Earth Fluorides : Yield,Auger ellect,and Luminescence" J.Electron Spectroscopy and Related Pheuomera. 79. 151-154 (1996)

Arisato Ejiri、Shinzo Kubota、Akira Hadano、Kunihiro Aragaki：“碱土氟化物中的真空紫外光电子动力学：产量、俄歇电性和发光”J.Electron Spectroscopy and Related Pheuomera 79. 151-154 (1996)。

A.Ejiri, S.Kubota, A Hatano and K.Yahagi: "Vacuum UV Photoelectric Yield Spectra of BaF_2, SrF_2 Crystals." J.Phys. Soc. Jpn.64. 1487-1488 (1995)

A.Ejiri、S.Kubota、A Hatano 和 K.Yahagi：“BaF_2、SrF_2 晶体的真空紫外光电产率光谱。”

江尻有郷 波田野彰: "Vacuum UV photoelectric Yield Spectra of BaF_2 and SrF_2" J.phys.Soc.Jpn. 65. 1484-1488 (1995)

Arigo Ejiri 和 Akira Hatano：“BaF_2 和 SrF_2 的真空紫外光电产率光谱”J.phys.Soc.Jpn 65. 1484-1488 (1995)

江尻有郷,波田野彰,新垣邦宏: "Vacuum UV photo luminescence : + Alkali Earth Fluorides : CaF_2,SrF_2 and Ba_2F_2" Activity Report of UV-SOR(分子科学研究所). 1995. 68-69 (1996)

Arisato Ejiri、Akira Hadano、Kunihiro Aragaki：“真空紫外光致发光：+碱土氟化物：CaF_2、SrF_2 和 Ba_2F_2”UV-SOR 活动报告（分子科学研究所）1995 年。68-69 (1996)。