STEM Imaging with Beam-Induced Hole and Secondary Electron Currents

Ultrafast electron beam imaging of femtosecond laser-induced plasma dynamics

Plasma dynamics in the early stage of laser ablation of a copper target are investigated in real time by making ultrafast electron shadow images and electron deflectometry measurements. These complementary techniques provide both a global view and a local perspective of the associated transient electric field and charge expansion dynamics. The results reveal that the charge cloud above the targ...

Studies on electron beam induced DNA damage and repair kinetics in lymphocytes by alkaline comet assay

Background: Exposure to ionizing radiation is known to induce oxidative stress followed by damage to critical biomolecules like lipids, proteins and DNA through radiolysis of cellular water. Since radiation has been widely used as an important tool in therapy of cancer, the detailed investigation regarding the DNA damage and repair kinetics would help to predict the radiation sensitivity of cel...

The role of secondary electrons in electron-beam-induced- deposition spatial resolution

Electron-beam-induced-deposition (EBID) is a versatile direct writing technique occasionally used in microand nanofabrication. We focus in our study on the EBID spatial resolution, defined as the lateral size of the smallest deposited structure. The lateral size of dot structures always exceeds the diameter of the electron probe. Many authors have argued that this is due to the secondary electr...

Focused electron beam induced deposition: A perspective

BACKGROUND Focused electron beam induced deposition (FEBID) is a direct-writing technique with nanometer resolution, which has received strongly increasing attention within the last decade. In FEBID a precursor previously adsorbed on a substrate surface is dissociated in the focus of an electron beam. After 20 years of continuous development FEBID has reached a stage at which this technique is ...

Non-invasive coronary artery imaging with electron beam computed tomography and magnetic resonance imaging.