疾驰
发表于 2025-4-1 02:22:50
Systems of Interacting Luminescence Centers in Natural Diamonds: Laser-Induced Time-Resolved and Caists. CL has several advantages over PL, namely, a greater energy density and the possibility to focus the microprobe beam to a few microns (Marfunin 1994). In addition, CL only stimulates the surface, whereas PL stimulates the whole crystal zone excited by the laser beam.
刀锋
发表于 2025-4-1 07:31:12
Use of Cathodoluminescence for U-Pb Zircon Dating by Ion Microprobe: Some Examples from the Westernt 40 years has this phenomenon been addressed more frequently. The main CL emission bands have been related to different trace elements such as Mn and V (Leverenz 1968), Hf and Y (Ono 1976), Dy (e.g. Mariano 1978), Gd and Tb (e.g. Ohnenstetter et al. 1991). These elements would act as “activators” a
LINE
发表于 2025-4-1 13:18:26
A Combination of Single Zircon Dating by TIMS and Cathodoluminescence Investigations on the Same Grvents. The UTh-Pb system is used in many cases to determine the time of crystallisation. Until now, there have been several U-Pb dating procedures: the conventional one (Krogh 1973; Oberli et al. 1981; Steiger et al. 1993), the Pb-Pb evaporation method (Kober 1986, 1987), the vapour digestion method
Adornment
发表于 2025-4-1 17:42:03
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经典
发表于 2025-4-1 21:55:05
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雕镂
发表于 2025-4-1 22:56:40
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Angioplasty
发表于 2025-4-2 04:45:28
Importance of Instrumental and Experimental Factors on the Interpretation of Cathodoluminescence Daectors and a scanned electron probe with a well defined energy, diameter and current. As a result of these developments CL microscopy and microanalysis are now routinely used for the analysis of structural defects and impurities in a wide range of materials.
venous-leak
发表于 2025-4-2 09:50:39
Systematic Cathodoluminescence Spectral Analysis of Synthetic Doped Minerals: Anhydrite, Apatite, Cf the REE in major minerals occurring in late differentiated stages such as apatite and zircon (McKay 1989). Most of the REE are well known to be luminescence activators (Pringsheim 1949; Levrenz 1950; Monod-Herzen 1966; Diecke 1968; Marfunin 1979; Marshall 1988, Waychunas 1988). In order to interpr
用手捏
发表于 2025-4-2 14:39:53
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寡头政治
发表于 2025-4-2 19:08:16
Quantitative High Resolution Spectral Analysis of Mn2+ in Sedimentary Calcite, and Hemming et al. (1989), in which CL intensity is predominantly controlled by the absolute Mn content and the efficiency of Fe quenching, which increases with increasing Mn concentration. Fairchild (1983) and Pierson (1981), however, pointed out that Fe quenching is not affected by increasing Mn