Abstract: According to one embodiment, a particle beam accelerator comprising: an injection unit configured to inject a particle beam; a guiding unit configured to guide the particle beam to a trajectory; an acceleration unit configured to accelerate the particle beam circulating on the trajectory; an emission unit configured to output the particle beam; a particle beam blocking unit configured to block the particle beam on the trajectory; a control unit configured to control the injection unit, the guiding unit, the acceleration unit, the emission unit, and the particle beam blocking unit, wherein: the guiding unit includes a superconducting electromagnet and a superconducting electromagnet interrupter configured to interrupt the superconducting electromagnet, the control unit is configured to change a starting sequence of the particle beam blocking unit and the superconducting electromagnet interrupter depending on at least an operating state of the emission unit, when an abnormality occurs in the superconducting ele

Abstract: According to one embodiment, a particle beam accelerator comprising: a guiding unit configured to guide a particle beam to a trajectory; an acceleration unit configured to accelerate the particle beam circulating on the trajectory; a particle beam blocking unit configured to block the particle beam on the trajectory; and a control unit configured to control the guiding unit, the acceleration unit, and the particle beam blocking unit, wherein: the guiding unit includes a superconducting electromagnet and a superconducting electromagnet interrupter configured to interrupt the superconducting electromagnet, and the control unit is configured to interrupt the superconducting electromagnet by activating the superconducting electromagnet interrupter after completion of blocking the particle beam by activating the particle beam blocking unit, when an abnormality occurs in the superconducting electromagnet.

Abstract: One embodiment of a particle accelerator includes: a vacuum container with its inside evacuated to produce vacuum, the vacuum container being formed with a laser beam entrance window for allowing a laser beam to enter; a target arranged in the vacuum container so as to be irradiated with a laser beam to generate ions; and a condenser lens for focusing the laser beam onto the target. The condenser lens is arranged at the laser beam entrance window of the vacuum container, and takes a role of a vacuum bulkhead.

Abstract: One embodiment of a particle accelerator includes: a vacuum container with its inside evacuated to produce vacuum, the vacuum container being formed with a laser beam entrance window for allowing a laser beam to enter; a target arranged in the vacuum container so as to be irradiated with a laser beam to generate ions; and a condenser lens for focusing the laser beam onto the target. The condenser lens is arranged at the laser beam entrance window of the vacuum container, and takes a role of a vacuum bulkhead.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.

Abstract: Character data of a word or phrase in a document is designated. Desired data is retrieved from a predetermined database on the basis of the designated character data. One sentence including at least the designated character data is cut out and subjected to sentence analysis. On the basis of a sentence analysis result, specific data is selected from the retrieval result acquired from the database. In addition, character data of a word or phrase in a document is designated. One sentence including at least the designated character data is cut out and subjected to sentence analysis to extract a keyword. A retrieval condition is prepared on the basis of the extracted keyword, and desired data is retrieved from a predetermined database on the basis of the retrieved conditional expression.