Abstract:
An optoacoustic system includes first and second light sources capable of generating pulse of light at first and second wavelengths, first and second electrically controlled optical attenuators, first and second light sync detectors, and a combiner. A power meter that is calibrated to determine power at the first and second predominant wavelength measures power at the first wavelength after the first light sync is detected and measures power at the second wavelength after the second light sync is detected. The system includes a calibration mode wherein it electrically attenuates the first optical attenuator when the power measured by the power meter at the first wavelength after the first light sync is detected is above a first level, and electrically attenuated the second optical attenuator when the power measured by the power meter at the second wavelength after the second light sync is detected is above a second level.
Abstract:
There are provided an evaluation device and an evaluation method for a substrate mounting apparatus capable of simply evaluating a temperature control function of the substrate mounting apparatus depending on evaluation conditions or circumstances and an evaluation substrate used for the same. The substrate mounting apparatus holds a target substrate mounted on a mounting surface and controls a temperature of the target substrate. The evaluation device includes an evacuable airtight chamber in which the substrate mounting apparatus is provided; an evaluation substrate which is mounted on the mounting surface instead of the target substrate and includes a self-heating resistance heater; and a temperature measurement unit which measures a temperature of the evaluation substrate.
Abstract:
Described is a radiation dosimeter including multiple sensor devices (including one or more passive integrating electronic radiation sensor, a MEMS accelerometers, a wireless transmitters and, optionally, a GPS, a thermistor, or other chemical, biological or EMF sensors) and a computer program for the simultaneous detection and wireless transmission of ionizing radiation, motion and global position for use in occupational and environmental dosimetry. The described dosimeter utilizes new processes and algorithms to create a self-contained, passive, integrating dosimeter. Furthermore, disclosed embodiments provide the use of MEMS and nanotechnology manufacturing techniques to encapsulate individual ionizing radiation sensor elements within a radiation attenuating material that provides a “filtration bubble” around the sensor element, the use of multiple attenuating materials (filters) around multiple sensor elements, and the use of a software algorithm to discriminate between different types of ionizing radiation and different radiation energy.
Abstract:
A radiographic imaging detector can include a housing, a radiographic imaging array enclosed by the housing, and a recess to releasably contain a battery in an outer surface of the housing. Certain exemplary embodiments of securing methods and/or battery latch apparatus for the closable recess of the DR detector can include a first catch mechanism configured to be released by force applied in a first direction, a second catch mechanism released by force applied in a second direction different from the first direction, where movement in the first direction can operate to disengage the first catch mechanism from the second catch mechanism, where movement in the second direction can operate to disengage the second catch mechanism for access to the recess, where the second catch mechanism is nearby the first catch mechanism, and where the first and second catch mechanism are actuated using one hand of an operator.
Abstract:
A luminance sensing system and method and a computer program product thereof are provided. The system includes: a first luminance sensing unit, arranged at a first position, and used for sensing a light ray luminance at the first position to generate a first illumination value; a second luminance sensing unit, arranged at a second position, having a displacement unit, and used for sensing a light ray luminance at the second position to generate a second illumination value; and a computing unit, electrically connected to the first luminance sensing unit, the displacement unit, and the second luminance sensing unit, and used for acquiring the first illumination value and the second illumination value, acquiring luminance range information by using the first illumination value. When the second illumination value does not conform to the luminance range information, the computing unit controls the displacement unit to move the second luminance sensing unit.
Abstract:
The invention relates to an actuation and evaluation circuit for a laser diode (1) and a photodiode (3) for determining the concentration of a gas. The laser diode can generate light in the range of an absorption line of the gas. The circuit comprises a driver (10, 11, 12, 13) for generating a driving signal (17) for the laser diode (1), an assembly (8, 9) for generating a reference signal (20), and a subtractor (5) for subtracting the reference signal (20) from the signal (21) supplied by the photodiode. The invention further relates to a measuring device for determining the concentration of a gas by means of such an actuation and evaluation circuit. Finally, the invention relates to a corresponding method.
Abstract:
A process is proposed for testing a laser device that has been set up to emit pulsed focused laser radiation, the focal position of which is adjustable both in and across the direction of propagation of the laser radiation. The laser device includes a contact element that is transparent to the laser radiation, with an abutment surface for abutment of an object to be machined. Within the scope of the process, a test object that is transparent to the laser radiation at least in a machining region is applied onto the abutment surface of the contact element. Then laser radiation is beamed into the test object bearing against the abutment surface and in the process the focal position is moved in accordance with a predetermined test pattern, in order to generate enduring machining structures in the test object.
Abstract:
A method is disclosed for in-situ monitoring of an EUV mirror to determine a degree of optical degradation. The method may comprise the steps/acts of irradiating at least a portion of the mirror with light having a wavelength outside the EUV spectrum, measuring at least a portion of the light after the light has reflected from the mirror, and using the measurement and a pre-determined relationship between mirror degradation and light reflectivity to estimate a degree of multi-layer mirror degradation. Also disclosed is a method for preparing a near-normal incidence, EUV mirror which may comprise the steps/acts of providing a metallic substrate, diamond turning a surface of the substrate, depositing at least one intermediate material overlying the surface using a physical vapor deposition technique, and depositing a multi-layer mirror coating overlying the intermediate material.
Abstract:
A method for adjusting or aligning one or more optical elements in a Transmission Electron Microscope (TEM) is disclosed. The TEM is equipped with an objective lens for guiding a beam of electrons to a sample, a diffraction plane in which at least a beam of unscattered electrons is focused and a structure to enhance the Contrast Transfer Function (CTF) which is situated in the diffraction plane or an image thereof.
Abstract:
Disclosed herein is a packing container including: a packing container body including a leading-out section which contains an optical probe having a first end section for incoming of a laser beam and a second end section for outgoing of the incoming laser beam, which leads out the first end section of the optical probe thus contained to the exterior and which is sealed, and a window section by which the laser beam going out from the second end section of the contained optical probe is led out to the exterior; and a light-transmitting member which closes the window section and permits the laser beam to pass therethrough.