Three-dimensional velocity map imaging of KBr surface photochemistry

Three-dimensional velocity map imaging of KBr surface photochemistry.

We have combined the velocity map imaging technique with time-of-flight measurements to study the surface photochemistry of KBr single crystals. This approach yields 3-dimensional velocity distributions of Br atoms resulting from 193 nm photodesorption. The velocity distributions indicate that at least two non-thermal mechanisms contribute to the photodesorption dynamics. Our experimental geome...

Three-dimensional velocity map imaging: setup and resolution improvement compared to three-dimensional ion imaging.

For many years the three-dimensional (3D) ion imaging technique has not benefited from the introduction of ion optics into the field of imaging in molecular dynamics. Thus, a lower resolution of kinetic energy as in comparable techniques making use of inhomogeneous electric fields was inevitable. This was basically due to the fact that a homogeneous electric field was needed in order to obtain ...

Surface three-dimensional velocity map imaging: A new technique for the study of photodesorption dynamics

Comparison of three-dimensional surface-imaging systems.

BACKGROUND In recent decades, three-dimensional (3D) surface-imaging technologies have gained popularity worldwide, but because most published articles that mention them are technical, clinicians often have difficulties gaining a proper understanding of them. This article aims to provide the reader with relevant information on 3D surface-imaging systems. In it, we compare the most recent techno...

Facial three dimensional surface imaging: an overview

laser scanning, facial morphology, stereophotogrammetry, three dimensional imaging. Abstract The surface facial imagings have many applications in medical fields. The recent past has seen great advances in three dimensional imaging which include laser scanning or stereophotogrammetry. Here, we reviewed various systems with reference to image acquisition, advantages and disadvantages. Examples o...