摘要:
A radiotherapy system includes: a waveguide, an adjustable waveguide, and a non-reciprocal circuit element. The waveguide transmits a high-frequency wave from a high-frequency power source to an acceleration tube. The adjustable waveguide is included in said waveguide and transforms a part of said waveguide. The non-reciprocal circuit element is provided between said acceleration tube and said adjustable waveguide in said waveguide. Said acceleration tube accelerates charged particles for generating therapeutic radiation by using said high-frequency wave.
摘要:
An amorphous silicon solar cell includes a substrate, a transparent electrode formed on this substrate, a power-generating film formed on this transparent electrode, and a back-side electrode formed on this power-generating film. The power-generating film is formed by sequentially stacking p-type/i-type/n-type hydrogenated amorphous silicon layers. The defect density of the i-type hydrogenated amorphous silicon layer is less than 1015 defects/cc.
摘要:
In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value. The high frequency value indicates a constant value when the selection power value is smaller than a predetermined value, and indicates the calculated resonance frequency when the selection power value is larger than the predetermined value.
摘要:
An object is providing an electrostatic attraction apparatus and an attracting/releasing method capable of reliably attracting and quickly releasing a glass substrate. An attraction force for attracting a glass substrate is obtained according to the physical properties of the glass substrate. In addition to obtaining an attraction voltage (Vc(t)) required for obtaining the attraction force, a holding voltage (Vh(t)) for holding an attraction state and a release voltage (Vr(t)) for releasing the glass substrate are also obtained (S1 to S7) Attraction time period (tc) is actually measured and if this measured time is different from a preset attraction time (t1), the holding voltage (Vh(t)) and the release voltage (Vr(t)) are recalculated according to the actually measured attraction time period (tc) (S8 to S11).
摘要:
A radiotherapy apparatus controller includes: a movement collection section; a sensor control section configured to change a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information; and an irradiation control section. The movement collection section collects movement information indicating a movement of a subject from a first sensor. The sensor control section changes a first time interval in which a second sensor measures a position of an irradiation area in the subject, based on the movement information. The irradiation control section controls a radiotherapy apparatus such that therapeutic radiation irradiated to the irradiation area is changed based on the position.
摘要:
In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value. The high frequency value indicates a constant value when the selection power value is smaller than a predetermined value, and indicates the calculated resonance frequency when the selection power value is larger than the predetermined value.
摘要:
A discharge plasma generating method includes (a) opposing a discharge electrode having a substantially plane discharge portion to a substrate to be processed in a vacuum reaction vessel such that the discharge electrode and the substrate are substantially parallel to each other, (b) evacuating the vacuum reaction vessel and supplying a process gas to a space between the discharge electrode and the substrate, and (c) applying HF power to the discharge electrode such that an envelope representing the spatial distribution of a HF voltage &phgr; on the discharge electrode in a split second changes in accordance with a function including time as a parameter, thereby generating a discharge plasma of the process gas between the discharge electrode and the substrate, with substantially no standing wave of the HF voltage &phgr; generated on the discharge electrode.
摘要:
A continuous casting device includes a pair of cooling rolls (1, 2) that rotate in opposite directions to each other. A pair of side weirs (11) have inner surfaces (11a) that covers the end surfaces (1a, 2a) of the cooling rolls (1, 2) and circular surfaces (12b) that covers the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2). At least one of the side weirs (11) is movable in an axial direction of the cooling rolls (1, 2). The continuous casting device also includes electromagnets for forming a magnetic flux in a direction parallel with a contact surface of the side weirs (11) with the molten metal (4) the contact surface extending along the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) at the portions opposite to the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) of the side weirs (11).
摘要:
A radiotherapy system includes: a waveguide, an adjustable waveguide, and a non-reciprocal circuit element. The waveguide transmits a high-frequency wave from a high-frequency power source to an acceleration tube. The adjustable waveguide is included in said waveguide and transforms a part of said waveguide. The non-reciprocal circuit element is provided between said acceleration tube and said adjustable waveguide in said waveguide. Said acceleration tube accelerates charged particles for generating therapeutic radiation by using said high-frequency wave.
摘要:
An object is to provide a medical device which can rotate a radiation emitter or the like with high positional precision over an extended period of time. Provided are a support frame installed such that a central axis thereof is positioned substantially horizontally; circular tracks respectively disposed on both side faces of the support frame; a moving gantry configured to revolve relative to the support frame via sliding portions configured to slide on the circular tracks; and revolving driving means for revolving the moving gantry, wherein the moving gantry is constructed of a rigid-framed structure formed of a first side portion and a second side portion disposed so as to flank the support frame from both side faces thereof, and coupling portions for coupling the first side portion and the second side portion.