Hitachi-high-technologies Corporation

Hitachi, Ltd.

Other

Hitachi Metals, Ltd.

Nihon Kohden Corporation

Nissan Motor Company Limited

Hitachi High-tech Corporation

Kyoto University

Xanavi Informatics Corporation

Proterial, Ltd.

Hiroyuki Satake

Hideki Hasegawa

Yuichiro Hashimoto

Masao Suga

Takashi Baba

Masuyuki Sugiyama

Izumi Waki

Norimasa Kishi

Masaki Watanabe

Yoshinori Endo

Hiroshi Shojima

Motoki Hirano

Toshio Fujiwara

Yasuaki Takada

Kazushige Nishimura

Kinya Aota

Tsutomu Wakabayashi

Tadashi Fujieda

Hajime Murakami

Takahiko Kato

Kenji Yamaga

Kousuke Kuwabara

Isamu Takahashi

Masao Kamahori

Hisashi Nagano

Atsumu Hirabayashi

Tomoyuki Sakai

Hideaki Nishiuchi

Tatsuo Yoshida

Naoto Akiyama

Masako Ishimaru

Naomi Manri

Yukiko Hirabayashi

Taku Iwami

Yujiro Fujisaki

Yui Shinozawa

A particle therapy system includes a building having a first floor and second floors and, a particle beam generator installed on the first floor and configured to generate a particle beam, a first transport system configured to transport a particle beam from the particle beam generator to a first irradiation system in a first treatment room, and a second transport system configured to transport a particle beam to a second irradiation system in a second treatment room, branched from the first transport system, via a second floor. The second transport system has a first bending magnet that bends a particle beam to the direction of the second floor different from the installation surface of the particle beam generator. The building has a shielding wall configured to shield the first floor and the second floor and the second transport system is provided penetrating the shielding wall.

Particle therapy system and extension method thereof

An alloy structure has an arbitrary shape dimension which has high uniformity in the distribution of the element composition. The alloy structure contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79 included in Group 3 to Group 16 of the periodic table of the elements and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of Fe and the four elements is contained in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration between at least four elements among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, a column crystal in which the at least four elements and Fe are solid-dissolved.

Alloy structure and method for producing alloy structure

In order to make an analyzer with an ion mobility separation part have high durability and robustness, the analyzer includes an ion source, an ion mobility separation part which includes a pair of facing electrodes to which a high frequency voltage and a DC voltage are applied, and a shielding electrode which is provided between the ion source and the ion mobility separation part and to which a DC voltage is applied, wherein the shielding electrode includes an ion flow path connecting an inlet from which ions from the ion source are introduced and an outlet from which the ions are discharged thereinside, and the ion flow path is bent so that the outlet is unable to be seen from the inlet.

Analysis device provided with ion mobility separation part

An alloy structure which has high uniformity in the distribution of the element composition and the mechanical strength and excellent high-temperature strength and corrosion resistance, contains Fe and at least four elements, which are selected from the group consisting of elements from atomic number 13 to atomic number 79, included in Group 3 to Group 16 of the periodic table of the elements, and have a ratio of the atomic radius to an Fe atom of 0.83 or more but 1.17 or less, each of the elements in an atomic concentration range of 5 at % or more but 30 at % or less, a difference in atomic concentration among the at least four elements and Fe is in a range of less than 3 at %, and the alloy structure has, as a main crystal, a column crystal in which the at least four elements and Fe are solid-dissolved.

In order to implement a high-sensitivity mass spectrometry through an improvement in solvent removal efficiency during electrospray ionization and the like, an ionization device is provided with a light guide pathwhich guides light from a light source to sample microparticles generated by a micronization device to irradiate the microparticles. A closest distance d2 between a spatial areain which the sample microparticles are present and a distal endof the light guide path is greater than or equal to 0.1 mm and less than or equal to 20 mm. A closest distance d1 between an area of light irradiationby the light guide path and any of a sample surface, a micronization device, and a sample holding unit that is the closest is greater than or equal to 0.01 mm and less than or equal to 10 mm.

Ionization device

To reduce contamination of the apparatus with an additive and to quickly switch spraying and stopping of the additive, provided is an ion analyzer including: an ion source for ionizing a measurement target substance, a spray unit for atomizing and spraying toward the measurement target substance a liquid containing an additive that reacts with the measurement target substance; a separation analysis unit for separately analyzing an ion generated by a reaction between the measurement target substance and the additive; a detector for detecting the ion that has been separately analyzed by the separation analysis unit; and a control unit for lowering a flow rate of the additive supplied to the spray unit during a time when the additive is not necessary.

Ion analysis device

A first rod electrode set has a first center axis, into which ions and air current are introduced. A second rod electrode set has a second center axis at a distance from the first center axis, from which the ions are discharged. A power supply applies voltages to the first rod electrode set and the second rod electrode set. The first rod electrode set and the second rod electrode set have a region where the sets overlap each other in the longitudinal direction, and form a single multipole ion guide by being combined to each other in the region. Different offset DC voltages are applied to the first rod electrode set and the second rod electrode set, respectively, and a DC potential for moving the ions to the second rod electrode set in the region is formed, the ions having been guided by the first rod electrode set.

Ion guide and mass spectrometer using same

An ion mobility separation device includes: an ion source that generates an ion; a pair of flat-plate electrodes having an introduction opening and a discharge opening for the ion generated by the ion source; a pump for causing the ion introduced via the introduction opening of the pair of flat-plate electrodes to travel toward the discharge opening; a voltage control unit that applies an asymmetric time-varying voltage and a direct-current voltage to the pair of flat-plate electrodes; a plurality of detectors disposed in a direction orthogonal to both an ion travel direction due to the pump and an applied direction of the asymmetric time-varying voltage; and a signal processing unit that processes a signal detected by the plurality of detectors. The voltage control unit performs a total transmission measurement involving application of the voltages to the pair of flat-plate electrodes so as to generate equal fields at least at two different points in the direction orthogonal to both the ion travel direction due to the pump and the applied direction of the asymmetric time-varying voltage. Compared to conventional technology, both high accuracy and high throughput are achieved in an asymmetric field application-type ion mobility separation device.

Ion mobility separation device

A mass spectrometer device comprising an ion mobility separation device and a mass spectrometer that are coupled together. In order to achieve high efficiency, high throughput, and high sensitivity, the mass spectrometer is provided with: a first flow passagewaythrough which ions from an ion sourceare introduced into the mass spectrometerby passing through an ion mobility separation unita second flow passagewaythrough which the ions from the ion source are introduced into the mass spectrometer without passing through the ion mobility separation unit; and a switch means, such as shield unitsfor switching between the first flow passagewayand the second flow passageway

Mass spectrometer

An analysis system is provided with: a storage unit that stores first information associating mass spectrometry result information with an analysis condition concerning ion mobility separation; and a control unit that determines, as a first analysis condition for an ion to be measured, the analysis condition associated with the mass spectrometry result information of the first information corresponding to the mass spectrometry result information of the ion to be measured.

Analysis system

A mass spectrometry device that can perform highly robust, highly sensitive, and low-noise analysis and addresses the problems of preventing reductions in ion transfer efficiency and of suppressing the introduction of noise components from droplets, etc. An ion source generates ions, a vacuum chamber is evacuated by an evacuation means and for analyzing the mass of ions, and an ion introduction electrode introduces ions into the vacuum chamber. The ion introduction electrode has an ion-source-side front-stage pore, a vacuum-chamber-side rear-stage pore, and an intermediate pressure chamber between the front-stage pore and the rear-stage pore, the cross-sectional area of an ion inlet of the intermediate pressure chamber is larger than the cross-sectional area of the front-stage pore, the position of the central axis of the front-stage pore and the position of the central axis of the rear-stage pore are eccentric, and the cross-sectional area of an ion outlet of the intermediate pressure chamber is smaller than the cross-sectional area of the ion inlet.

Mass spectrometry device

Provided is an ion source achieving high sensitivity and high robustness while executing a plurality of types of ionization schemes. To this end, a hybrid ion source () includes: a chamber (); a first ion source () to spray a sample solution () for ionization; a second ion source () to ionize droplets and/or a gas component sprayed from the first ion source (); a first electrode () to introduce a first ion () generated by the first ion source (), and a second ion generated by the second ion source (); and an exhaust pump () that generates air flow () in a direction from a first space area () where the first ion () is generated to a second space area () in the second ion source () where the second ion is generated.

Hybrid ion source, mass spectrometer, and ion mobility device

A medical apparatus communication system includes a first medical apparatus and a second medical apparatus. The first medical apparatus includes a first communicating unit which establishes a communication connection with the second medical apparatus to communicate with the second medical apparatus, and a first controlling unit which controls the first medical apparatus. The second medical apparatus includes a second communicating unit which establishes a communication connection with the first medical apparatus to communicate with the first medical apparatus, a second controlling unit which controls the second medical apparatus, and a second sound outputting unit which performs a sound output in accordance with a control of the second controlling unit. The second controlling unit controls the sound output of the second sound outputting unit in a predetermined timing after establishment of the communication connection between the first and second communicating units.

Medical apparatus communication system and medical apparatus

In order to provide an ion source that can be easily switched with high sensitivity and in a short time, the ion source includes an ionization probe for spraying a sample, a heating chamber for heating and vaporizing a sample; and driving portions and for changing the distance between an outlet end (i.e., an end on the spray side) of the ionization probe and an inlet end (i.e., an end on the ionization probe side) of the heating chamber. The positions of the ionization probe and the heating chamber are controlled by the driving portions so that an ionization region that uses the ionization probe or an ionization region that uses the heating chamber is positioned near the ion inlet port of the mass spectrometer.

Hybrid ion source and mass spectrometric device

Growing community of inventors

Tokyo, Japan

Hiroyuki Satake