DATA ACQUISITION SYSTEM FOR ULTRAHIGH-RESOLUTION DEDICATED STEM

正在开发一种用于真空的自动数据采集系统 发电机HB501超高分辨率专用扫描变速箱 电子显微镜(STEM)。它的新分析能力 电子显微镜需要新的计算机化方法 数据采集和分析。可用的商业系统已经 受限于可并发获取的数据类型和 处理数据的算法。作为该系统的一部分， 桌面数据采集和分析程序，称为Desk Top Spectrum 分析和X射线数据库(DTSA)是为Macintosh开发的 II(和更高)级计算机。完成了数据的采集 利用特别改装的商用插件式总线卡和控制器 与控制和分析软件接口的软件例程 DTSA的。一项由NIH和NIST联合持有的专利正在申请中 在这个分析工具上。DTSA可从以下办公室获得 标准参考数据(OSRD)，美国国家标准与技术研究院 技术，只需支付适当的费用。OSRD已经获得了版权。

An automated data acquisition system is being developed for the Vacuum Generators HB 501 ultrahigh-resolution dedicated scanning transmission electron microscope (STEM). The new analytical capabilities of this class of electron microscope require fresh approaches to computerization of data acquisition and analysis. Available commercial systems have been limited in both the kinds of data that can be acquired concurrently and the algorithms for processing the data. As part of this system, a desktop data acquisition and analysis program, called Desk Top Spectrum Analyzer and X-Ray Database (DTSA), has been developed for the Macintosh II (and higher) class of computers. The data acquisition is accomplished utilizing specially modified commercial plug-in bus cards and control software routines that interface to the control and analytical software of DTSA. A patent, to be held jointly by the NIH and NIST, is pending on this analytical tool. The DTSA is available from the Office of Standard Reference Data (OSRD), National Institute of Standards and Technology, for a modest fee. A copyright has been obtained by the OSRD.