THE SCANNING NUCLEAR MICROPROBE AT SINR

This paper describes the scanning nuclear microprobe facilities established at the Shanghai Institute of Nuclear Research. The Russion quadruplet constructed with four magnetic quadrupolets is used for microbeam formation. The long focus of the lens makes the working distance long enough to accommodate the scanning coils and the detectors for PIXE, RBS, RFS, NRA and SE experiments. A 5 μm focussed beam is scanned continously by a pair of coils. A multiparameter multidetector data system for the nuclear microprobe is based on the idea of Total quantitative scanning analysis (TQSA) suggested by Melbourne University. A digital graphic displayer is a good substitute for an ordinary storage oscilloscope for on- line scanned area monitoring. The new microprobe meets high demands of biologists and geologists on applications.     

Micro－PIXE analysis of trace element composition and their distribution in minerals of mantle peridotite

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STUDY ON OCCURENCE FORM OF PLATINUM IN XINJIE Cu－Pt DEPOSIT BY NAA AND SCANNING PROTON MICROPROBE

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精密钛涂层测厚仪

本文介绍一种用微机控制的精密钛涂(镀)层厚度测定仪,测量范围为0.1—10μm,最小测量面直径为3mm,精度优于±5％。     

精密钛涂层测厚仪

随着金属材料表面的处理工艺发展和提高,许多机器和仪器的金属构件以及装饰物表面都涂(镀)一层钛合金,以提高耐磨性、抗腐蚀性,增长使用寿命,以及增添外观美和使用价值。对其涂层的厚度和涂复工艺均有一定的要求。 测量涂层厚度的方法有多种,各有其特点和使用范围。通常采用金相法、化学分析法     

金镀层测厚仪

本文简要介绍了仪器的测量原理和结构。仪器的测量厚度范围不大于10μm,测量精密度小于±0.5μm。     

手表零件镀层测厚仪

在手表生产中,由于机芯零件的电镀层厚度难以控制,影响手表的装配精度、走时准确和使用寿命。尤其在每年黄梅季节,常发现零件生锈报废和手表返修除锈,这不仅影响手表美观,而且影响手表的产量、质量和成本。为了有效地控制手表零件的镀层厚度和贵重金属用量,并能指导电镀工艺,迫切需要对手表零件镀层厚度作快速无损测量。