Simultaneous High-Speed DualEELS and EDS Acquisition at Atomic Level

نویسندگان

  • P. Longo
  • T. Topuria
  • P. Rice
  • A Aitouchen
چکیده

The modern STEM is capable of providing a wealth of information, but without fast, efficient detectors that wealth would be lost. Over the last few years, EELS systems have become faster, more efficient and capable of acquiring large energy and dynamic ranges while EDS detectors have greatly increased collection angles and counting rates. These advances would be meaningless without the improved brightness of modern electron sources and the aberration correction of the electron probe. In this paper, we show how advances in instrumentation and software control allow EELS and EDS signals to be acquired at high-speed with minimal acquisition dead time. We will present data at atomic level over a range of conditions that show the complementary nature of the techniques and highlight the strength of each.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High-speed atomic force microscopy: Structure and dynamics of single proteins.

For surface analysis of biological molecules, atomic force microscopy (AFM) is an appealing technique combining data acquisition under physiological conditions, for example buffer solution, room temperature and ambient pressure, and high resolution. However, a key feature of life, dynamics, could not be assessed until recently because of the slowness of conventional AFM setups. Thus, for observ...

متن کامل

Fast STEM Spectrum Imaging Using Simultaneous EELS and EDS

Introduction Up to now, researchers performing analytical investigations in the transmission electron microscope typically had to choose between analytical spectroscopy techniques. They might choose energy dispersive X-ray spectroscopy (EDS) analysis when working with thick samples containing high-Z elements or choose electron energy-loss spectroscopy (EELS) when studying low-Z materials in thi...

متن کامل

On recent developments for high-speed atomic force microscopy

The atomic force microscope (AFM) is limited in imaging speed by the bandwidth and dynamic behavior of the actuators and mechanical parts. For high-speed imaging all AFM components have to be optimized in performance. Here, we present improvements of the force sensor, the scanner, the controller, and the data acquisition system. By combining all these improvements, the next generation AFMs will...

متن کامل

On Advancement of High Speed Atomic

High speed atomic force microscopy (AFM) is a developing process in which nanoscale objects, such as crystal structures or strands of DNA, can be imaged at rates fast enough to watch processes as they occur. Although current generation AFM is already pivotal in many fields of research and industry, slow scan rates inhibit the imaging of dynamic samples. Much advancement has been made in high sp...

متن کامل

Multifocus structured illumination microscopy for fast volumetric super-resolution imaging.

We here report for the first time the synergistic implementation of structured illumination microscopy (SIM) and multifocus microscopy (MFM). This imaging modality is designed to alleviate the problem of insufficient volumetric acquisition speed in super-resolution biological imaging. SIM is a wide-field super-resolution technique that allows imaging with visible light beyond the classical diff...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014