Abstract: An IMRT dosimeter is capable of measuring a three-dimensional absorption dose distribution in a transparent plastic phantom (202a) readily and accurately. In the IMRT dosimeter, radiation beams (201a, 201b) are directed to a phantom assembly having a scintillation fiber block (204a) sandwiched between two blocks of the phantom (202a). As an intensity of light proportional to the radiation beam is emitted from one side of the scintillation fiber block (204a), its profile is measured by an image sensor (205). Then, the three-dimensional absorption dose distribution is obtained from the light intensity distribution data. By summing the three-dimensional absorption dose distribution data measured through the radiation beam at different angles, an integrated three-dimensional absorption dose distribution in the phantom (202a) can be calculated readily and accurately.

Abstract: a voltage equalizing apparatus for battery devices includes a core, a plurality of first closed circuits and a second closed circuit. The plurality of first closed circuits each includes one of a plurality of first battery devices interconnected in series, one of a plurality of secondary windings magnetically connected with each other through the core, and one of a plurality of first switching devices. The second closed circuit includes a second battery device, a primary winding magnetically connected with the secondary windings through the core, and a second switching device. The first switching devices and the second switching device are alternately turned ON and OFF to equalize the output voltages of the first battery devices. The first switching devices continue to be turned ON after completion of the transportation of the exciting energy stored in the core.

Abstract: In such a voltage equalizer circuit in which each of plural windings P1 to Pn electromagnetically coupled to each other, each of plural storage elements E1 to En series-connected to each other, and each of plural first switching elements S1 to Sn are connected to each other in a series connecting manner so as to constitute a plurality of closed circuits, this voltage equalizer apparatus is featured by that a reference voltage winding Pp electromagnetically coupled to the plurality of windings is provided; both a DC power supply Ep and a second switching element Sp are series-connected to the second winding; and all of the plural first switching elements and the second switching element are turned ON/OFF in a synchronous manner.

Abstract: In a voltage equalizing apparatus for battery devices, wherein each of a plurality of closed circuits is constituted of each of a plurality of battery devices interconnected in series on a secondary side, each of a plurality of secondary windings magnetically coupled with each other, and each of a plurality of switching devices on the secondary side, wherein a closed circuit is constituted of a battery device on a primary side, a primary winding magnetically coupled with the secondary windings in common, and a switching device on the primary side, and wherein the plurality of switching devices on the secondary side and the switching device on the primary side are alternately switched ON and OFF, thereby equalizing the output voltages of the plurality of battery devices interconnected in series on the secondary side; the ON operation of the plurality of switching devices on the secondary side is continued until after the completion of release of exciting energy stored in a transformer.

Abstract: A thermoresistance adhesive which does not dissolve in the sealer-composing resins at the sealer molding temperature and is capable of providing a semiconductor chip/lead frame adhesive strength under shear of 1 N/4 mm2 or greater, and including, for example, amide, imide, ester or ether linkage is suited for use in producing thermoresistance adhesive solutions and thermoresistance resin pastes, and the semiconductor chips, lead frames, films, etc., made by using such an adhesive are suited for providing low-cost semiconductor devices.

Abstract: An improved structure of a spindle motor for use in a floppy disk device is provided. The spindle motor includes a stator and a radial bearing. The stator is made of a magnetic metal plate on which an electric circuit is provided and in which a bearing mount hole is formed. The radial bearing supports a spindle and includes a mounting outer wall fitted within the bearing mount hole of the stator and a bearing wall taking a radial load acting on the spindle. A groove is formed in the radial bearing between the mounting outer wall and the bearing wall to absorb the stress produced upon installation of the radial bearing which may cause the bearing wall to be deformed undesirably.

Abstract: The height of the lower head is equal to that of the upper heads. A mounting plate is provided between the lower head and a carriage to provide penetration arrangement. The lower head is fixed on the carriage through the mounting plate with adhesive. The mounting plate has a rough area having small holes to provide surely adhering with accuracy. The thickness of the mounting plate is accurate because of punching (cutting) processing and is greater than that of the shutter. The width of the mounting plate is greater than that of the lower head but smaller than the shutter opening of the floppy cartridge to avoid influence to the motion of access of the magnetic head to the floppy disk. The gimbal plate for the lower magnetic head is omitted, so that the orientation of said lower magnetic head is fixed.

Abstract: A winding is wound directly on the magnetic head core formed of a single crystal of Mn—Zn ferrite. The diameter is 20-30 &mgr;m. A high-saturated magnetic flux density material (iron) having a magnetic flux density which is more than 1.3 T covers walls of the magnetic gap using sputtering. A slider including the magnetic head comprises ceramic including titanic calcium. The magnetic head is adhered to the slider with a low melting point glass. In a magnetic recording apparatus including the above-mentioned magnetic head, the slider includes air bearing surface trains arranged in the driving direction of the magnetic recording medium on a contact surface of the slider. Each bearing surface train includes protruding portions and a hollow portion direction. The hollow portion escapes the air between the protruding portion and the recording medium. The head is evacuated from the magnetic recording medium.

Abstract: An anti-reflective film laminated on the display surface of a cathode ray tube which is not prone to pealing with age includes an extension on each of the four sides of the main film surface. The extensions from the main anti-reflective film surface are preferably rectangular and can be wrapped around the sides of the cathode ray tube adjacent to the display surface. A heat shrink band is then constricted around the cathode ray tube to fix the anti-reflective film in place. Strips of conductive material on the extensions of the anti-reflective film can be electrically connected to grounding electrodes on the heat shrink band to allow for the dissipation of static electricity which tends to accumulate on the anti-reflective film. With the heat shrink band securing the anti-reflective film in place over the display surface over the cathode ray tube, the anti-reflective film is not prone to pealing or separation from the display surface of the cathode ray tube.

Abstract: An electric circuit connection container for accommodating a printed circuit board in a space formed by an upper case and a lower case and, at the same time, holding and affixing the printed circuit board by a holding and affixing member projected from an inner surface of the upper case. The holding and affixing member is provided with a receiving rib for engagement with an upper surface of the printed circuit board and a lock pieces or latches (12) for locking engagement with a lower surface of the printed circuit board. The lock pieces (12) are pressed into locking position by a busbar assembly (2, 3, 4) upon assembly of the lower case (2) to the upper case (1).

Abstract: A radiation deep dose measuring apparatus. A corpuscular beam detector of scintillation fibers bundled together into a block is adjusted in position to have a width similar to the radiation range of corpuscular beams; a driving apparatus rotates the corpuscular beam detector and an image receiver together around a center corresponding to a radial axis of the beams; the image receiver captures the image of scintillation light emanating from the corpuscular beam detector; an image signal processing apparatus processes the image signal to produce the distribution of radiation doses as a function of depth; and a displaying apparatus displays the result. The radiation deep dose measuring apparatus allows rapid measurement of radiation doses in three-dimensional space.

Abstract: A photosensitive resin composition comprising (A) a resin having an amide bond, an oxyalkylene group and a carboxyl group, (B) a photopolymerizable compound having an ethylenically unsaturated group and (C) a photopolymerization initiator has an alkali developability, good sensitivity and photocurability, an efficient pattern formability by photolithography, a good application workability to a film and is capable of producing cured products having good folding endurance, solder reflow heat resistance, solvent resistance, bondability and nonflammability and suitable for producing a photosensitive element, a photosensitive laminate and a flexible printed circuit board.

Abstract: A floppy disk system is provided which includes a pair of magnetic heads each consisting of a slider with which a magnetic disk moves in contact and a magnetic core which is formed in the slider and has formed therein a magnetic gap. The magnetic heads holds the magnetic disk therebetween to record or reproduce information signals on or from the magnetic disk. The disk contact surface of each of the sliders is polished to have a surface roughness of 2 to 8 nmRa for avoiding the stick-slip between the magnetic heads and the magnetic disk, thereby decreasing the start torque of a spindle motor required for rotating the disk.

Abstract: A wide range radiation detector which can precisely detect high energy region radiations. The detector has a plurality of layered semiconductor elements wired in parallel, and outputs the energy of the radiation by summing the charges generated by ionization of the radiation incident on the semiconductor elements.

Abstract: In a depth dose measuring device, a light is outputted from an end surface of a block-type detector (202) formed by tying a plurality of scintillation fibers in a bundle, a spectroscope (204) is used to disperse the light so as to measure an amount of light having a wavelength corresponding to an emission spectrum of the scintillation fibers, a picture measuring device (205) and a picture processing device (206) calculate an emission distribution of only a scintillation light depending upon an emission distribution in which the scintillation light and a Cerenkov light are mixed, and a result is displayed on a display device (207).

Abstract: A floppy disk unit rotates a recording medium loaded thereon and reads information from or records information on the medium with magnetic heads. The unit is provided with an adjustment portion for adjusting beforehand portions of the magnetic heads with respect to the medium. The adjustment portion is arranged in a position where it is prevented from being vertically overlapped with the loaded medium so that adjustment of the unit can be performed from above easily and reliably in a stable manner.

Abstract: In a depth dose measuring apparatus, a fluorescent substance block (1) bundling scintillation fibers of which radiation absorption characteristic is close to that of tissue, is disposed orthogonally to the incident direction of radiation (4-1). The fluorescence intensity distribution on the fiber end faces of the fluorescent substance block (1) is measured by an image measuring device (6). Therefore, the two-dimensional fluorescence intensity distribution in the incident direction of radiation and in another orthogonal direction, that is, the absorption dose distribution can be measured simultaneously by one irradiation. Moreover, if the fluorescent substance block (1) is composed by laminating plate-form scintillators, one-dimensional absorption dose distribution in the depth direction can be measured by one operation.

Abstract: A photosensitive resin composition comprising, as its main ingredient, a poly(amic acid) resin constituted of a diamino compound represented by formula: ##STR1## and optionally used other diamino compound and a tetracarboxylic acid dianhydride as its constituent monomers and/or a poly(amic acid) ester resin obtained by esterifying said poly(amic acid) resin and/or a polyimide resin obtained by a dehydrating or alcohol-eliminating ring-closure reaction of said poly(amic acid) resin or poly(amic acid) ester resin has an excellent developability and a high film strength and can form a relief patter of low thermal expansion.

Abstract: A neutron particle measuring apparatus includes a neutron converter to generate alpha rays in response to incidence of neutron, a scintillator to receive as input the alpha rays generated from the neutron converter so as to emit and transmit scintillation, two photoreceptive portions to receive the scintillation through different transmitting paths, and a signal processing portion to measure a neutron distribution depending upon times at which the scintillation can reach the photoreceptive portions according to a time-of-flight method. The single particle measuring apparatus can be used to measure the neutron distribution in the vicinity of a nuclear reactor in a nuclear power plant.

Abstract: A photosensitive resin composition comprising, as its main ingredient, a poly(amic acid) resin constituted of a diamino compound represented by formula: ##STR1## and optionally used other diamino compound and a tetracarboxylic acid dianhydride as its constituent monomers and/or a poly(amic acid) ester resin obtained by esterifying said poly(amic acid) resin and/or a polyimide resin obtained by a dehydrating or alcohol-eliminating ring-closure reaction of said poly(amic acid) resin or poly(amic acid) ester resin has an excellent developability and a high film strength and can form a relief patter of low thermal expansion.