Abstract:
The invention comprises a patient positioning and/or repositioning system, such as a laying, semi-vertical, or seated patient positioning, alignment, and/or control method and apparatus used in conjunction with multi-axis charged particle radiation therapy. Patient positioning constraints optionally include one or more of: a seat support, a back support, a head support, an arm support, a knee support, and a foot support. One or more of the positioning constraints are preferably movable and/or under computer control for rapid positioning, repositioning, and/or immobilization of the patient. The system optionally uses an X-ray beam that lies in substantially the same path as a proton beam path of a particle beam cancer therapy system. The generated image is usable for: fine tuning body alignment relative to the proton beam path, to control the charged particle beam path to accurately and precisely target the tumor, and/or in system verification and validation.
Abstract:
An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device. The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector EO radiation collector may receive an EO conductor cable an end of which may be configured to receive EO radiation. A portion of the EO radiation received by EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.
Abstract:
A device for transporting and focusing ions in a low vacuum or atmospheric-pressure region of a mass spectrometer is constructed from a plurality of longitudinally spaced apart electrodes to which oscillatory (e.g., radio-frequency) voltages are applied, hi order to create a tapered field that focuses ions to a narrow beam near the device exit, the inter-electrode spacing or the oscillatory voltage amplitude is increased in the direction of ion travel.
Abstract:
An ion transfer arrangement for transporting ions between higher and lower pressure regions of a mass spectrometer includes an electrode assembly (120) with a first plurality of ring electrodes (205) arranged in alternating relation with a second plurality of ring electrodes (210). The first plurality of ring electrodes (205) are narrower than the second plurality of ring electrodes (210) in a longitudinal direction, but the first plurality of ring electrodes have a relatively high magnitude voltage of a first polarity applied to them whereas the second plurality of ring electrodes (210) have a relatively lower magnitude voltage applied to them, of opposing polarity to that applied to the first set of ring electrodes (205). In this manner, ions passing through the ion transfer arrangement experience spatially alternating asymmetric electric fields that tend to focus ions away from the inner surface of the channel wall and towards the channel plane or axis of symmetry.
Abstract:
A method of transporting gas and entrained ions between higher and lower pressure regions of a mass spectrometer comprises providing an ion transfer conduit 60 between the higher and lower pressure regions. The ion transfer conduit 60 includes an electrode assembly 300 which defines an ion transfer channel. The electrode assembly 300 has a first set of ring electrodes 305 of a first width D1, and a second set of ring electrodes of a second width D2 (≧D1) and interleaved with the first ring electrodes 305. A DC voltage of magnitude V1 and a first polarity is supplied to the first ring electrodes 205 and a DC voltage of magnitude V2 which may be less than or equal to the magnitude of V1 but with an opposed polarity is applied to the second ring electrodes 310. The pressure of the ion transfer conduit 60 is controlled so as to maintain viscous flow of gas and ions within the ion transfer channel.
Abstract:
PROBLEM TO BE SOLVED: To achieve a stable irradiation of a beam without using a complicated adjusting mechanism. SOLUTION: A focused ion beam device includes: a needle-like chip 1; a gas-supplying part including a gas nozzle 2 for an ion source and a gas supply source 3 for the ion source to supply gas to the chip 1; an extraction electrode 4 applying voltage with the chip 1 and extracting ions by ionizing the gas adsorbed onto a surface of the chip 1; an ion gun part 19 including a cathode electrode 5 accelerating ions toward a sample 13; a gun alignment electrode 9 located closer to the sample 13 than the ion gun part 19 and adjusting an irradiation direction of an ion beam 11 emitted from the ion gun part 19; and a lens system including a focusing lens electrode 6 focusing the ion beam 11 on the sample 13 and an objective lens electrode 8. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
노광 패턴은, 기판 위로 한 궤적을 따라 광 스폿을 스캐닝하면서 소망하는 패턴에 따라 온 및 오프로 스위칭함으로써, 기판 위에 기록된다. 궤적의 각각의 부분들에서 기판을 조명하기 위한 광의 각각의 스폿 크기는 상기 패턴의 기하학적 형상에 따른다. 궤적의 부분들 중 연속하는 부분들 사이의 각각의 피치 값은, 각각의 부분들에 대해 선택된 스폿 크기에 연관되어 선택된다. 광 스폿은, 궤적 부분들 사이의 선택된 피치 값들 및 궤적을 따라 위치 의존적인 스폿 크기로, 상기 궤적을 따라 기판 위로 스캐닝된다. 일 실시예에서, 나선형 궤적인 사용된다.