Abstract: A solid obstacle is removed with a high-power laser beam to establish a transmission path for a spatial laser communication. When a space in which the laser beam is transmitted is blocked off by the solid obstacle, the spatial laser communication cannot be carried out.

Abstract: A method of irradiating an electromagnetic pulse includes specifying a position of a target having electronic equipment; setting the light-condensing point based on the position of the target; and condensing the laser beam to generate plasma in the light-condensing point such that the electromagnetic pulse generated from the plasma is irradiated to the electronic equipment. In this way, a method and system for irradiating an electromagnetic pulse are realized which can irradiate the electromagnetic pulse of a large output while restraining diffusion of the electromagnetic pulse.

Abstract: A multichip module includes a plurality of semiconductor substrates and a plurality of surface mounting parts. The plurality of semiconductor substrates each have a wiring line region which contains a wiring line to pierce from one of the surfaces to the other surface. A plurality of surface mounting parts are mounted on either of the plurality of surface mounting parts. The plurality of semiconductor substrates are stacked to form a multilayer structure. The first surface mounting part as at least one of the plurality of surface mounting parts is arranged in an inside region of the multilayer structure.

Abstract: In an aerospace vehicle in which a satellite is detachably adapted to the first stage rocket and the second stage rocket, an electronic device 65 is installed in the satellite 60, wherein the electronic device 65 controls the first stage rocket 10 and the second stage rocket 20 before the satellite is detached from the first stage rocket 10 and the second stage rocket 20. Thereby, it is unnecessary to provide sensors, radio devices and electronic devices for exclusive use with respect to the first stage rocket 10 and the second stage rocket 20 so that a manufacturing cost of the rockets 10 and 20 can be reduced and a total weight of the rockets 10 and 20 can become lighter by omitting these equipments. Thus, an aerospace vehicle system within the rockets 10 and 20 can be simplified and a launch of the aerospace vehicle can be prepared within a short period.

Abstract: A solid obstacle is removed with a high-power laser beam to establish a transmission path for a spatial laser communication. When a space in which the laser beam is transmitted is blocked off by the solid obstacle, the spatial laser communication cannot be carried out.

Abstract: An electromagnetic pulse protecting method includes: searching a threat 2 that generates an electromagnetic pulse 2a; and generating plasma 6 in a light-condensed point 4 by condensing a laser beam 5 on a light-condensed point 4 in response to detection of the threat 2. Thus, various protection objects which contain a protection object having an electric opening indispensably can be protected from an attack by the electromagnetic pulse.

Abstract: A detector for a Compton camera includes a first radiation scattering layer; a second radiation scattering layer; and a radiation absorption layer disposed between the first radiation scattering layer and the second radiation scattering layer. The first radiation scattering layer and the radiation absorption layer configure at least a part of a first detector, and the second radiation scattering layer and the radiation absorption layer configure at least a part of a second detector.

Abstract: A radiation measuring apparatus includes: a plurality of detector modules; and a processing unit. Each of the detector modules includes: a plurality of detectors; a plurality of analog signal processing sections, each of which is provided for a corresponding one of the plurality of detectors to carry out analog-digital conversion to an analog signal obtained from the corresponding detector to generate digital measurement data corresponding to the analog signal; and a digital processing section configured to transmit to the processing unit, digital communication data generated from the digital measurement data received from the plurality of analog signal processing sections. Each of the plurality of detectors is a scatterer detector functioning as a scatterer or an absorber detector functioning as an absorber. The processing unit generates a radiation source distribution image showing a spatial distribution of radiation sources based on the digital communication data received from the of detector modules.

Abstract: A radiation measuring apparatus (20) includes a scatterer detector (10A), an absorber detector (10B) and a processing unit (12). Pixel electrodes (2) of the scatterer detector (10A) and the absorber detector (10B) are arranged such that a distance between centers of two neighbor pixel electrodes (2) is smaller than a mean free path of a recoil electron generated in the Compton scattering of an electromagnetic radiation. The processing unit (12) specifies and incidence direction of the electromagnetic radiation based on a recoiling direction to which the recoil electron recoils. In this way, an electron tracking-type Compton camera is realized which confines the incidence direction of the electromagnetic radiation by using the recoiling direction of the recoil electron in a Compton camera using a semiconductor detector.

Abstract: A radiation measuring apparatus (20) includes a scatterer detector (10A), an absorber detector (10B) and a processing unit (12). Pixel electrodes (2) of the scatterer detector (10A) and the absorber detector (10B) are arranged such that a distance between centers of two neighbor pixel electrodes (2) is smaller than a mean free path of a recoil electron generated in the Compton scattering of an electromagnetic radiation. The processing unit (12) specifies and incidence direction of the electromagnetic radiation based on a recoiling direction to which the recoil electron recoils. In this way, an electron tracking-type Compton camera is realized which confines the incidence direction of the electromagnetic radiation by using the recoiling direction of the recoil electron in a Compton camera using a semiconductor detector.

Abstract: A semiconductor integrated circuit, a radiation detection unit and a cooling unit are provided. Here, a radiation detection unit is provided near the semiconductor integrated circuit and detects a radiation quantity. The cooling unit cools the semiconductor integrated circuit according to the detected radiation quantity. In an environment where a radiation quantity is more, the generation of a malfunction can be restrained by cooling the semiconductor integrated circuit.

Abstract: A radioactive substance distribution map producing system includes a radiation detector, a position measuring unit and a radioactive substance distribution map producing apparatus. The radiation detector is loaded on a moving vehicle and measures radiations from radioactive substances. The position measuring unit measures a position of the moving vehicle. The radioactive substance distribution map producing apparatus receives measurement data which contains a measurement result by the radiation detector and position data of the moving vehicle measured by the position measuring unit. The radioactive substance distribution map producing apparatus produces a distribution map of the radioactive substances by using the measurement data obtained at the plurality of positions while the moving vehicle moves.

Abstract: An electromagnetic pulse protecting method includes: searching a threat 2 that generates an electromagnetic pulse 2a; and generating plasma 6 in a light-condensed point 4 by condensing a laser beam 5 on a light-condensed point 4 in response to detection of the threat 2. Thus, various protection objects which contain a protection object having an electric opening indispensably can be protected from an attack by the electromagnetic pulse.

Abstract: A method of irradiating an electromagnetic pulse includes specifying a position of a target having electronic equipment; setting the light-condensing point based on the position of the target; and condensing the laser beam to generate plasma in the light-condensing point such that the electromagnetic pulse generated from the plasma is irradiated to the electronic equipment. In this way, a method and system for irradiating an electromagnetic pulse are realized which can irradiate the electromagnetic pulse of a large output while restraining diffusion of the electromagnetic pulse.

Abstract: A parallel processing system includes a plurality of computers accessibly connected through a network, and distributedly executing a plurality of processes. Each of the plurality of computers is composed of an operation processing unit configured to execute an allocated process, a local memory group having a first area and a second area and an I/O control circuit. The operation processing unit executes the allocated process by using the first area as an access destination in a first period and, and executes the allocated process by using the second area as the access destination in a second period subsequent to the first period. The I/O control circuit is composed of an updating section configured to update data stored in the local memory group to the latest data by carrying out communication among the computers. The updating section updates the data stored in the first area in the second period.

Abstract: A detector for a Compton camera includes a first radiation scattering layer; a second radiation scattering layer; and a radiation absorption layer disposed between the first radiation scattering layer and the second radiation scattering layer. The first radiation scattering layer and the radiation absorption layer configure at least a part of a first detector, and the second radiation scattering layer and the radiation absorption layer configure at least a part of a second detector.

Abstract: A multichip module includes a plurality of semiconductor substrates and a plurality of surface mounting parts. The plurality of semiconductor substrates each have a wiring line region which contains a wiring line to pierce from one of the surfaces to the other surface. A plurality of surface mounting parts are mounted on either of the plurality of surface mounting parts. The plurality of semiconductor substrates are stacked to form a multilayer structure. The first surface mounting part as at least one of the plurality of surface mounting parts is arranged in an inside region of the multilayer structure.

Abstract: A semiconductor integrated circuit, a radiation detection unit and a cooling unit are provided. Here, a radiation detection unit is provided near the semiconductor integrated circuit and detects a radiation quantity. The cooling unit cools the semiconductor integrated circuit according to the detected radiation quantity. In an environment where a radiation quantity is more, the generation of a malfunction can be restrained by cooling the semiconductor integrated circuit.

Abstract: A technique which can reduce a cost of a space machine installed with a solar cell. The space machine is composed of a light collecting unit and the solar cell. The light collecting unit is arranged on a surface of the body of the space machine to collect incident sun light inside the body. The solar cell is installed inside the body to receive the sun light collected by the light collecting unit.

Abstract: A radioactive substance distribution map producing system includes a radiation detector, a position measuring unit and a radioactive substance distribution map producing apparatus. The radiation detector is loaded on a moving vehicle and measures radiations from radioactive substances. The position measuring unit measures a position of the moving vehicle. The radioactive substance distribution map producing apparatus receives measurement data which contains a measurement result by the radiation detector and position data of the moving vehicle measured by the position measuring unit. The radioactive substance distribution map producing apparatus produces a distribution map of the radioactive substances by using the measurement data obtained at the plurality of positions while the moving vehicle moves.