医用感绿X射线胶片的研制

本文扼要报导了一种新型的感绿医用X射线胶片的研制工作。研制过程中重点研究和克服了一系列关键性难题，如：富碘核心的碘溴化银乳剂、抗交迭（交叉）效应技术、防静电技术、涂布技术等。新研制的感绿X射线胶片的照相性能已达到国外同类产品水平。     

国产医用X射线胶片的差距及其对策

1.前言医用X射线胶片是感光材料中的大类产品,据报道,在感光材料的总产量中,36%是X射线胶片产品。它既是耗银量较大的,又是生产工艺较复杂的感光材料。自从1959年国内研制成第一张X射线胶片至今,目前的GK型胶片已是第三代产品。GK型胶片是国际上通用的、既适合机器自动加工(即能     

消息报道

上海感光胶片总厂一分厂两种新产品通过鉴定上海感光胶片总厂一分厂在原生产的中速GX-A7型射线探伤胶片的基础上,研制成一种可用高能射线探伤的低速、高反差、高清晰度GX-A5型工业X光胶片,并于1991年12月14日由上海市轻工业局主持通过了技术鉴定。该胶片除可用于金属X射线探伤摄片外,还可用于γ射线探伤摄片。该胶片加工时,既适合高温机器自动冲洗,也适合常温手工冲洗。     

天津牌荧光缩影医用X射线胶片

天津牌荧光缩影医用X射线胶片是一种正色性、高感光度，中等反差，细颗粒，单面涂布感光层的胶片，专门适用于拍摄X射线间接摄影机荧光屏上的图像，其生产过程采用一系列先进而精密复杂的工艺技术，如：计算机控制双注法乳化，特殊晶型卤化银颗粒，新型化学增感技术，高速光学增感剂，新型坚膜剂等，因此其质量可与一些世界名牌产品媲美。     

X射线胶片图像特征提取和量化方法

根据《铝合金铸件X射线照相检验缺陷分级标准》，提出了一种用于铝合金铸件X射线胶片气孔缺陷定量分析的特征提取方法和缺陷量化方法，实验结果表明该方法可行，为实现铝合金铸件X-射线胶片的气孔缺陷计算机自动分级奠定了基础．     

医用感光材料及临床应用

医用感光材料属于黑白感光材料中的负性材料,如 X 射线胶片多为色盲片和少数分色片。作为 X 射线摄影工作者须了解胶片的种类,掌握胶片的照相性能,采用科学的测试法指导摄影实践。这是提高和保证工作质量的有效措施。一、医用X射线般片的种类、去毛' 以感色性分类'一" 1.色盲片:只对蓝象色光线敏感的X射线片称"色盲片"或感蓝片.. 2.感绿片:对绿色光线敏感的X射线胶片称感绿片。以用途分类 1.普通x射线胶片指X射线摄影中最常用的胶片,可按摄影部位不同选用各种尺寸的胶片,摄影时将胶片装入暗盒内应用。 2.牙科用     

氦氖激光CT胶片的研制

氦氖激光CT胶片充分利用激光的单色性、高强度等特点，可使医用X线计算机体层摄影获得清晰度更高和层次更丰富的射线照相影像，为医疗诊断提供极其重要的信息。本文扼要介绍了该胶片研制过程中所研究的主要技术课题和取得的成果；经对比检测，其实用性能可达到进口同类产品水平。     

工业射线照相胶片的感光特性、质量与选用要求

１工业无损检测对象与相关要求（见上期）２胶片感光性能要求（见上期）２．１层次特性（见上期）２．２能谱特性在实用范围内，X射线胶片特性曲线的形状不受照射到胶片上的X射线或γ射线波长（或能量）的影响。但胶片的感光度，就获得一定黑度所需要的照射量———伦琴数而言，会受到照射线能量（或波长）的强烈影响。图５表示某种胶片在一定的冲洗条件下获得黑度１．０所需要的射线照射量伦琴数（曝光时不用增感）。各种X射线胶片的能谱感光度曲线与图５所示曲线特点大致相同。但一种胶片与另一种胶片的感光性能，特别是最大感光度与最…     

基于射线检测的胶片特性曲线应用研究

阐述了正确运用X光胶片特性曲线在射线检测中的重要性，研究TX光胶片特性曲线在射线检测过程中曝光参数选取时的实用价值及其相关应用。     

X射线数字成像系统及其应用

X射线数字成像技术具有一些引进胶片成像技术所不具备的特点，本文介绍了几种X射线数字成像系统的技术特点和主要性能指标，并就其综合性能进行了比较；介绍了两种常见的X射线数字成像系统的应用情况；对X射线数字成像技术的发展方向作了简述。     

Flexible Electronic Substrate Film Fabricated Using Natural Clay and Wood Components with Cross‐Linking Polymer

Requirements for flexible electronic substrate are successfully accomplished by green nanocomposite film fabricated with two natural components: glycol‐modified biomass lignin and Li⁺ montmorillonite clay. In addition to these major components, a cross‐linking polymer between the lignin is incorporated into montmorillonite. Multilayer‐assembled structure is formed due to stacking nature of high aspect montmorillonite, resulting in thermal durability up to 573 K, low thermal expansion, and oxygen barrier property below measurable limit. Preannealing for montmorillonite and the cross‐linking formation enhance moisture barrier property superior to that of industrial engineering plastics, polyimide. As a result, the film has advantages for electronic film substrate. Furthermore, these properties can be achieved at the drying temperature up to 503 K, while the polyimide films are difficult to fabricate by this temperature. In order to examine its applicability for substrate film, flexible electrodes are finely printed on it and touch sensor device can be constructed with rigid elements on the electrode. In consequence, this nanocomposite film is expected to contribute to production of functional materials, progresses in expansion of biomass usage with low energy consumption, and construction of environmental friendly flexible electronic devices.     

Co-Solvent Engineering Contributing to Achieve High-Performance Perovskite Solar Cells and Modules Based on Anti-Solvent Free Technology

The pinhole-free and defect-less perovskite film is crucial for achieving high efficiency and stable perovskite solar cells (PSCs), which can be prepared by widely used anti-solvent crystallization strategies. However, the involvement of anti-solvent requires precise control and inevitably brings toxicity in fabrication procedures, which limits its large-scale industrial application. In this work, a facile and effective co-solvent engineering strategy is introduced to obtain high- quality perovskite film while avoiding the usage of anti-solvent. The uniform and compact perovskite polycrystalline films have been fabricated through the addition of co-solvent that owns strong coordination capacity with perovskite components , meanwhile possessing the weaker interaction with main solvent . With those strategies, a champion power conversion efficiency (PCE) of 22% has been achieved with the optimal co-solvent, N-methylpyrrolidone (NMP) and without usage of anti-solvent. Subsequently, PSCs based on NMP show high repeatability and good shelf stability (80% PCE remains after storing in ambient condition for 30 days). Finally, the perovskite solar module (5 × 5 cm) with 7 subcells connects in series yielding champion PCE of 16.54%. This strategy provides a general guidance of co-solvent selection for PSCs based on anti-solvent free technology and promotes commercial application of PSCs.     

UV‐Lasertechnologie in der PLD

Future of UV Lasertechnology in industrial PLD processes The success formula for any thin film technology on the production floor is bridging the gap between precisely depositing a functional thin film and at the same time achieving industrial processing rates. Fortunately, the pulsed laser deposition method has come of age thanks to output power and stability advances in UV excimer laser technology and has become a proven and industrial grade thin film deposition method.     

Investigations of local electrical properties using tunneling/atomic force microscope with a quartz tuning fork nearfield sensor

Ability to determine local electric surface properties with a high resolution is a key issue in many modern industrial applications. In this article, authors will describe low-cost and reliable methods for investigations of electrical surface properties with a nanoscale resolution using a homebuilt modular tunneling/atomic force microscope with a quartz tuning fork as a probe. We will present the architecture of the designed system and the calibration method of the applied sensor. In our work, the usage of the tunneling atomic force microscope in the high-resolution investigations of the surface topography and identification of local spots where the tunneling current is observed will be demonstrated. We will also present current-voltage (I-V) spectroscopy performed on a gold thin film sputtered on silicon substrate and a highly oriented pyrolitic graphite (HOPG) surface, which we obtained in air ambient and at room temperature.     

江苏省工业循环经济发展评价及障碍诊断

依据工业循环经济发展的基本原则,构建了包括产业及社会发展、资源减量、循环利用、污染减排、资源与环境安全五类指标在内的区域工业循环经济发展评价指标体系,运用AHP(层次分析法)方法,测算了指标权重,通过对江苏省1985～2003年的原始数据进行计算,对江苏省的工业循环经济发展状况进行了评价,依据评价结果,引进"障碍度"概念,对江苏省工业循环经济发展的不同阶段进行定量的障碍诊断.最后从推进科技进步、制订行业资源占用标准、完善资源环境价格等方面提出了推进江苏省工业循环经济发展的政策建议.     

工业射线胶片照相探伤曝光性能测试对比

本文选取代表性的国内外同类型工业射线胶片进行应用测试、对比,结果表明:铝合金铸件、钛合金焊件、钢焊件及铝合金焊件射线照相探伤时,选用天津牌工业射线胶片不存在技术风险且满足生产要求。     

工业射线胶片乳剂制备技术的新进展

本文简要阐述了近几年工业射线胶片乳剂制备技术的一些新进展，主要是关于制备具有高遮盖力的、高内外敏度的碘溴化银乳剂的新技术，这种乳剂具有对高能量射线的高灵敏度，因此特别适用于制作低银工业射线胶片；并介绍了工业射线胶片乳剂制备过程中应用的一系列照像有机补加剂，如：乳剂生长调变剂、光谱增感染料、稳定剂、显影促进剂等。     

2013年国内塑料薄膜行业发展情况分析

本文重点阐述了塑料薄膜行业上下游的发展概况,分析了塑料薄膜的分类、用途及其发展方向,并用原材料方面详尽的统计数据预测未来薄膜市场的行情趋势。揭示了国际跨国公司在塑料薄膜方面的在华布局,展示了国内上市企业在功能性薄膜方面的研发成果及其核心竞争力。     

铱盐在工业射线胶片中的应用

本文阐述提高工业射线胶片拍摄宽容度和射线感光度的研究。尽管我们一般的工业射线胶片与国外名牌产品对可见光具有相同的感光速度,但是实际上用X-射线曝光对较厚钢管和铸件进行无损探测时,感光速度却远低于国外工业射线胶片,这是由于在用低照度长时间曝光时产生的互易律失效现象造成的。研究结果证实:在乳剂制备过程中加入铱盐作为掺杂剂,可提供多价离子在卤化银颗粒的适当位置产生浅电子陷阱,以防止出现互易律失效现象,从而全面改进工业射线胶片的感光性能。     

橡胶密封膜粘接用清洗剂的选择

考察了几种清洗剂对气柜橡胶密封膜粘接性能的影响 ,包括工业二甲苯、工业乙酸乙酯、工业丙酮与分析纯二甲苯。结果表明 ,以工业丙酮作清洗剂的橡胶密封膜 ,其剥离强度平均偏差和 85万次屈挠试验后的剥离强度变化率最小 ;其剥离强度和剪切强度均满足性能要求。工业丙酮能够替代分析纯二甲苯作为气柜橡胶密封膜的清洗剂