4 results about "Optically stimulated luminescence" patented technology

A beryllium aluminate component may include a beryllium aluminate ceramic comprising 90 wt% or more beryllium aluminate. The ceramic may be characterized by one or more of: a thermal conductivity from 17 W / m·K to 175 W / m·K at room temperature; a bulk resistivity greater than 1 x 1015 ohm-cm at room temperature and / or greater than 1 x 109 ohm-cm at 700 ºC and / or greater than 1 x 1010 ohm-cm at 600 ºC; a coefficient of thermal expansion from 7.4 to 9.0 µm / (m·K) at room temperature; a near bioequivalence to human body tissue (Zeff) from 7.2 to 11.3; and a density of from 3.4 to 3.9 g / cc. The beryllium aluminate components may be used in pedestal assemblies, wafer pedestals, wafer chucks, integral resistance heaters, and / or components thereof, as well as for optically stimulated luminescence, thermoluminescence, radioluminescence, or dosimetry systems thereof. Processes for preparing the beryllium aluminate ceramic components are also disclosed.

The utility model provides a coring device for collecting light release light samples, which relates to the technical field of soil sampling and comprises a sampler and a drill bit, a sampling end of the sampler is detachably connected with the drill bit, the other end of the sampler is detachably connected with a drill rod, the sampler comprises a sampling barrel and a sealing pipe, the sampling barrel is detachably connected with the drill bit, and a packaging opening is arranged on the sampling barrel. The sealing pipe is arranged in the sampling pipe from the packaging opening, the packaging opening is covered and connected with a cover plate, the opening end of the sealing pipe faces one side of the drill bit, the other end of the sealing pipe is internally and slidably connected with a sealing piece, and the sealing pipe is packaged in the sampling barrel, so that the sealing pipe is prevented from being in direct contact with surrounding soil, and the light pollution risk of a sample is reduced; the inner diameter of the sealing pipe is equal to the inner diameter of the drill bit, a sample drilled by the drill bit is completely loaded into the sampling barrel, after sampling is completed, the sealing pipe can be taken out of the sampling barrel, the sealing pipe can be conveniently transferred, the sealing pipe is black, real burying signals are reserved, and therefore accurate and reliable age data are obtained.

This invention discloses an optically stimulated luminescence (OSL) sample collection device and method for geological and mineral exploration, relating to the field of geological exploration sampling technology. It addresses the technical problems of slow single-sampling speed and complex processes in existing sampling devices. The OSL sample collection device includes a light-shielding shell, a feeding mechanism, a positioning mechanism, a pick-and-place mechanism, and a storage mechanism. The front of the light-shielding shell has a sampling port. The feeding mechanism is located inside the light-shielding shell and stores multiple unsampled sampling tubes. The positioning mechanism receives and aligns the sampling tubes with the sampling port. The pick-and-place mechanism pushes the sampling tubes through the sampling port for sampling, or retracts the sampled tubes back to the positioning mechanism. The storage mechanism receives and stores the sampled tubes. This invention enables sampling to be completed within the light-shielding shell, and the sample storage process is conducted in a light-shielding environment after sampling, avoiding the problem of premature fading of mineral particles due to natural light exposure.