CHARACTERIZATION AND USE OF THE GATAN-666 PARALLEL-RECORDING ELECTRON ENERGY-LOSS SPECTROMETER

被引：27

作者：

EGERTON, RF ^{[1
]}

YANG, YY ^{[1
]}

CHENG, SC ^{[1
]}

机构：

[1] SUNY STONY BROOK,DEPT MAT SCI,STONY BROOK,NY 11794

来源：

ULTRAMICROSCOPY | 1993年 / 48卷 / 03期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1016/0304-3991(93)90098-I

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Measurements were made of the characteristics of the Gatan PEELS system, to evaluate how this parallel-recording spectrometer can be used to best advantage. An increase in sensitivity at higher signal level is attributable to the electronics and can be largely removed by a minor modification to the circuitry. The signal/noise ratio and DQE can be understood only if explicit allowance is made for the point-spread function of the detector. DQE is found to exceed 0.1 over a limited range of signal intensity. The stray-scattering background, response time of the detector and other spectrometer properties have also been measured.

引用

页码：239 / 250

页数：12

共 18 条

[1] CORRECTING ELECTRON-ENERGY LOSS SPECTRA FOR ARTIFACTS INTRODUCED BY A SERIAL DATA-COLLECTION SYSTEM [J].