Investigation of gas-electron interactions with electron holography

Investigation of the operation of Thick Gas Electron Multiplier and Electron Multiplier Assembly for alpha particle detection

In this study, the detection of alpha particles in the high current mode is investigated in the presence of two gaseous electron multipliers in the micro-pattern structures. Thick Gas Electron Multiplier (TGEM) and an Electron Multiplier Assemblies (EMA) were designed and constructed as amplification gap in the detector chamber. An ion chamber is employed to measure the current of interaction b...

Investigation of Effect of Electron Irradiation on Ionic Liquid Using Electron Holography

Ionic liquid (IL) has various attractive features and attract a great attention as new functional materials for applications. Recently, it has been reported that ILs were applied in scanning electron microscopic (SEM) observation because they do not vaporized even in vacuum condition [1]. Moreover, they can be also used as solvents and supporting films of nanoparticles for transmission electron...

Ferroelectric electron holography.

Ferroelectrics are increasingly important as materials in semiconductor technology, e.g. for building non-volatile memory chips. For optimisation of the properties of such devices, there is an urgent need for methods, which analyse the ferroelectric properties at nanometer scale. Furthermore, the basic understanding of the interaction of ferroelectrics with electrons in the transmission electro...

Pulsed electron holography

Electron Holography: Recent Developments

With the ever increasing speed of modern computers, computing-power hungry applications as electron holography can become more interactive and user friendly and be available for live-time application. New phase unwrapping algorithms and improved reconstruction techniques are discussed together with new approaches to improve the signal/noise ratio in reconstructed phase and amplitude images. Whi...