Trck dating channel Freelivesexchatonline
In this way the effect is magnified by orders of magnitude.
(1958) Etching of radiation damage in lithium fluoride. The technique uses etching as a chemical amplifier.
Ion track channels down to less than 10 nanometer diameter (about 100 atomic diameters) can be fabricated.
A refinement of the aiming precision down to the nanometer scale is possible.
Heavy ions are decelerated smoothly in the material and stop at a well defined range.
In fractions of a second, thousands of artifacts can be created per square micron.
Applications range from single bio sensors to water repellent surfaces.
Each track corresponds to exactly one fission fragment. Due to the high energy density of ions many homogeneous dielectric materials are susceptible to selective etching. Heavy ion accelerators provide parallel beams with high flux density. Basic Principles and Applications; Vieweg, Wiesbaden, Germany. (Editor) (2003) Fundamentals of Ion-Irradiated Polymers; Springer Series in Materials Science.A flexible, but impenetrable mono layer of tenside molecules forms between the etching medium and the channel wall.
Its thickness corresponds to the length of the tenside molecule.
Young found an explanation for naturally occurring ion tracks in minerals: fission fragments from traces of uranium. (1894) Results of Etch Method in Crystallographic Research (in German). The etching process accentuates the invisible defect raising it to a useful level.