Patent classifications
G01N23/2204
Systems, devices, and methods for x-ray fluorescence analysis of geological samples
A geological analysis system, device, and method are provided. The geological analysis system includes sensors, including an X-ray fluorescence (XRF) unit, which detect properties of geological sample materials, a sample tray which holds the geological sample materials therein, and a processor. The XRF unit includes a body and a separable head unit and an output port configured to emit helium onto the geological sample materials within the sample tray. The sample tray includes chambers formed in an upper surface, ports, and passages, each providing communication between an interior of a chamber and an interior of a port. The ports are configured to be attachable to vials. The processor is configured to automatically position at least one of the sensors and the sample tray with respect to the other of the at least one of the sensors and the sample tray and to control the sensors.
Systems, devices, and methods for x-ray fluorescence analysis of geological samples
A geological analysis system, device, and method are provided. The geological analysis system includes sensors, including an X-ray fluorescence (XRF) unit, which detect properties of geological sample materials, a sample tray which holds the geological sample materials therein, and a processor. The XRF unit includes a body and a separable head unit and an output port configured to emit helium onto the geological sample materials within the sample tray. The sample tray includes chambers formed in an upper surface, ports, and passages, each providing communication between an interior of a chamber and an interior of a port. The ports are configured to be attachable to vials. The processor is configured to automatically position at least one of the sensors and the sample tray with respect to the other of the at least one of the sensors and the sample tray and to control the sensors.
X-RAY ANALYZER
An X-ray analyzer includes a sample container for accommodating a sample, a placement portion capable of placing the sample container thereon, an X-ray irradiation source for irradiateing the sample with X-rays from below the placement portion, a detector for detecting fluorescent X-rays generated from the sample below the placement portion, and a holder placed on the placement portion, and configured to accommodate the sample container. The placement portion has an opening. The sample container includes a container body for surrounding the sample, the container body beings having a shape opened downward, and a container film configured to close an opening of the container body and support the sample. The holder includes an enclosure cylinder having an outer shape larger than the opening, the to surround the sample container, and having a shape opened downward, and a holder film closing an opening of the enclosure cylinder.
X-RAY ANALYZER
An X-ray analyzer includes a sample container for accommodating a sample, a placement portion capable of placing the sample container thereon, an X-ray irradiation source for irradiateing the sample with X-rays from below the placement portion, a detector for detecting fluorescent X-rays generated from the sample below the placement portion, and a holder placed on the placement portion, and configured to accommodate the sample container. The placement portion has an opening. The sample container includes a container body for surrounding the sample, the container body beings having a shape opened downward, and a container film configured to close an opening of the container body and support the sample. The holder includes an enclosure cylinder having an outer shape larger than the opening, the to surround the sample container, and having a shape opened downward, and a holder film closing an opening of the enclosure cylinder.
OBSERVATION DEVICE FOR OBSERVATION TARGET GAS, METHOD OF OBSERVING TARGET IONS, AND SAMPLE HOLDER
The observation device comprises: a scanning electron microscope for detecting secondary electrons generated by irradiating the sample with an electron beam within the analysis chamber; a sample holder having a cell for housing the observation target gas, an open window of the cell, and a sample mounting part to which the sample can be mounted so as to block the open window; and an observation target ion detecting unit for irradiating the front surface of the sample with an electron beam in a state where the observation target gas in the cell contacts the back surface of the sample and detecting observation target ions derived from the observation target gas generated by the electron beam. In a state where the observation target gas is housed in the cell and the sample is mounted to the sample mounting part of the sample holder, the entire hydrogen cell can be sealed.
OBSERVATION DEVICE FOR OBSERVATION TARGET GAS, METHOD OF OBSERVING TARGET IONS, AND SAMPLE HOLDER
The observation device comprises: a scanning electron microscope for detecting secondary electrons generated by irradiating the sample with an electron beam within the analysis chamber; a sample holder having a cell for housing the observation target gas, an open window of the cell, and a sample mounting part to which the sample can be mounted so as to block the open window; and an observation target ion detecting unit for irradiating the front surface of the sample with an electron beam in a state where the observation target gas in the cell contacts the back surface of the sample and detecting observation target ions derived from the observation target gas generated by the electron beam. In a state where the observation target gas is housed in the cell and the sample is mounted to the sample mounting part of the sample holder, the entire hydrogen cell can be sealed.
X-ray fluorescence measurement apparatus
An X-ray fluorescence measurement apparatus has a sample tank, and a measurement unit that has an X-ray generator and an X-ray fluorescence detector. A film mechanism takes out a used film from a partitioning position between the sample tank and the measurement unit in a slide direction which intersects a direction of arrangement of the sample tank and the measurement unit, and feeds an unused film portion to the partitioning position in the slide direction. The film portions may alternatively be exchanged using cassettes.
X-ray fluorescence measurement apparatus
An X-ray fluorescence measurement apparatus has a sample tank, and a measurement unit that has an X-ray generator and an X-ray fluorescence detector. A film mechanism takes out a used film from a partitioning position between the sample tank and the measurement unit in a slide direction which intersects a direction of arrangement of the sample tank and the measurement unit, and feeds an unused film portion to the partitioning position in the slide direction. The film portions may alternatively be exchanged using cassettes.
Analytical method and apparatus
There is provided an analytical method capable of generating a high resolution spectrum of X-rays with an intended energy. The analytical method is for use in an analytical apparatus having a diffraction grating for spectrally dispersing X-rays emanating from a sample, an image sensor for detecting the spectrally dispersed X-rays, and an incident angle control mechanism for controlling the incident angle of X-rays impinging on the diffraction grating. The image sensor has a plurality of photosensitive elements arranged in the direction of energy dispersion. The analytical method starts with specifying an energy of X-rays to be acquired. The incident angle is adjusted based on the specified energy to bring the focal plane of the diffraction grating into positional coincidence with those one or ones of the photosensitive elements which detect X-rays having the specified energy.
Analytical method and apparatus
There is provided an analytical method capable of generating a high resolution spectrum of X-rays with an intended energy. The analytical method is for use in an analytical apparatus having a diffraction grating for spectrally dispersing X-rays emanating from a sample, an image sensor for detecting the spectrally dispersed X-rays, and an incident angle control mechanism for controlling the incident angle of X-rays impinging on the diffraction grating. The image sensor has a plurality of photosensitive elements arranged in the direction of energy dispersion. The analytical method starts with specifying an energy of X-rays to be acquired. The incident angle is adjusted based on the specified energy to bring the focal plane of the diffraction grating into positional coincidence with those one or ones of the photosensitive elements which detect X-rays having the specified energy.