What is an ionization track?

The trail of ion pairs produced by an ionizing radiation during its passage through matter. From: ionization track in A Dictionary of Genetics »

What is track etching?

Chemical etching. Chemical etching is a process of pore formation. During chemical etching the damaged zone of a latent track is removed and transformed into a hollow channel (Fleischer 1964, Fleischer 1975). It is the pore-size-determining and pore-shape-determining stage of the technology.

Can electrons be tracked?

(PhysOrg.com) — Physicists in Europe have successfully glimpsed the motion of electrons in molecules. By creating attosecond laser pulses, the scientists could snap ‘pictures’ of electrons’ movements within molecules. …

Is an alpha particle?

Alpha particles (a) are composite particles consisting of two protons and two neutrons tightly bound together (Figure 1). An alpha-particle is identical to the nucleus of a normal (atomic mass four) helium atom i.e. a doubly ionised helium atom.

What is the advantage of track etching?

Track-etch membranes offer distinct advantages over conventional membranes due to their precisely determined structure. Their pore size, shape and density can be varied in a controllable manner so that a membrane with the required transport and retention characteristics can be produced.

What is a track etched membrane?

Track-etched membranes feature a unique pore structure that offers the smallest tolerances regarding pore sizes and pore density on the market. The unique two-step process allows Oxyphen to target specific customer requirements regarding pore size and density that affect air flow and water entry pressure.

What keeps track of the movement of electrons?

In chemical reactions, both electrons and atoms change positions as both p and s bonds are formed and broken. Arrow pushing is used to keep track of the movement of all electrons involved with each step of the overall transformation.

How do electrons move in a molecule?

The electron is described by a probabilistic quantum wavefunction, which spreads out through space and vibrates, but in such a way that it still has certain discrete properties such as mass. When bound in a stable state in an atom, the electron wavefunction spreads out into a certain shape called an “orbital”.

What principle is used in electrodialysis?

1. What principle is used in electrodialysis? Explanation: An electric field and ion selective membranes is used for separating an electrolyte feed in an dilute and concentrated desalted water. 2.

What can ion track technology be used for?

Ion track technology deals with the production and application of ion tracks in microtechnology and nanotechnology. Ion tracks can be selectively etched in many insulating solids, leading to cones or cylinders, down to 8 nanometers in diameter.

When did Ion semiconductor sequencing technology come out?

Ion semiconductor sequencing may also be referred to as Ion Torrent sequencing, pH-mediated sequencing, silicon sequencing, or semiconductor sequencing. The technology was licensed from DNA Electronics Ltd, developed by Ion Torrent Systems Inc. and was released in February 2010.

What is the length of an ion track?

Intensities are available in wide ranges, even up to billions of ions per second. Depending on the available energy, track lengths between a few and several hundred micrometers can be produced. Accelerators are used in micro- and nanotechnology.

What is the abbreviation for ion semiconductor sequencing?

Ion semiconductor sequencing may also be referred to as Ion Torrent sequencing, pH-mediated sequencing, silicon sequencing, or semiconductor sequencing.