Abstract:
PURPOSE: A mounting device for a laser focusing tape is provided to adjust or maintain the tension of a tape by pressurizing the tape with a tension adjusting device and to stably use the tape having very thin thickness of nanometer unit. CONSTITUTION: A mounting device for a laser focusing tape comprises a base(10), a pair of tape winding parts(20,22), and a tension adjusting device(30). The tape winding parts mount a tape, in which laser is focused to generate particles, on the base and moves the tape while rotating. The tension adjusting device is provided between the pair of tape winding parts to pressurize the tape, thereby adjusting or maintaining the tension of the tape.
Abstract:
PURPOSE: An apparatus and a method for homogenizing laser beam by using a split-recombination method are provided to increase the homogeneity by compensating the movement of a center axis between the superposed beams. CONSTITUTION: An apparatus for homogenizing laser beam by using a split-recombination method includes a beam splitter(1), the first prism(2), the first and the second total reflection mirrors(4,5), the second prism(3), and a beam refractor(6). The beam splitter(1) is used for dividing the incident beam(7) into the first and the second beams(9,8). The first beam(9) penetrates the beam splitter(1) and the second beam(8) is reflected by the beam splitter(1). The first prism(2) is used for dividing the second beam(8) into the third and the fourth beams(10,11). The first and the second total reflection mirrors(4,5) are used for inverting the waveform of the third beam(10) and the waveform of the fourth beam(11). The second prism(3) is used for recombining the inverted beams(12,13). The beam refractor(6) is used for transmitting the recombined beam(14), reflecting the recombined beam(14) by means of the beam splitter(1), supposing the reflected beam on the first beam(9), and adjusting a center axis of the supposed beam(15) to the center axis of the first beam(9).
Abstract:
PURPOSE: An apparatus and a method for homogenizing laser beam by using a split-recombination method are provided to increase the homogeneity by compensating the movement of a center axis between the superposed beams. CONSTITUTION: An apparatus for homogenizing laser beam by using a split-recombination method includes a beam splitter(1), the first prism(2), the first and the second total reflection mirrors(4,5), the second prism(3), and a beam refractor(6). The beam splitter(1) is used for dividing the incident beam(7) into the first and the second beams(9,8). The first beam(9) penetrates the beam splitter(1) and the second beam(8) is reflected by the beam splitter(1). The first prism(2) is used for dividing the second beam(8) into the third and the fourth beams(10,11). The first and the second total reflection mirrors(4,5) are used for inverting the waveform of the third beam(10) and the waveform of the fourth beam(11). The second prism(3) is used for recombining the inverted beams(12,13). The beam refractor(6) is used for transmitting the recombined beam(14), reflecting the recombined beam(14) by means of the beam splitter(1), supposing the reflected beam on the first beam(9), and adjusting a center axis of the supposed beam(15) to the center axis of the first beam(9).
Abstract:
The object of the present invention is to provide a variable-period permanent magnet undulator which is applicable to not only a planar undulator but also a helical undulator. More particularly, the object of the present invention is to provide a variable-period permanent magnet capable of easily and precisely controlling the period of the permanent magnet through a structure to efficiently widen a distance between the permanent magnets by a repulsive force between the permanent magnets by the magnetic flux saturation of a ferromagnetic body interposed between the permanent magnets in the undulator on which the permanent magnet and the ferromagnetic body are alternatively arranged.
Abstract:
The present invention relates to a method of manufacturing a multi-layer target including a vacuum layer with a narrow vacuum gap for the laser induced, specifically, by this the step five (5 step) forming the vacuum layer in the metal layer intervening space the side in which the step four (4 step), patterning the photoresist layer of the first substrate and the metal layer of the second substrate are formed in which the photoresist layer is formed on the upper part of the metal layer of the step three (3 step). The first substrate manufacturing the second substrate with the step one and step two is patterning the opposite surface of the side in which the metal layer is formed from the previous step one and manufactures the first substrate, and step two and the same method generate the metal layer in one side of the substrate or the second substrate. According to the invention, the double-layer target can be easily manufactured from the micro-electromechanical system (MEMS) technology, and it is used for manufacturing the conventional semiconductor processes. The each thickness of the double-layer target as well as the energy spectrum of the ion beam particle to generate can be controlled by the invention. [Reference numerals] (1) Silicon substrate;(10) Double layer target including a vacuum layer;(2) Spread a metal film material;(3) Aluminum (masking material) deposition;(4) Photoresist deposition;(5) Photolithography;(6) Photoresist development;(7) Etch an aluminum layer;(8) Etch the silicon substrate-DRIE;(9) Photoresist + Photolithography;(AA) Make two sheets
Abstract:
본 발명은 에너지 측정을 위한 파라데이컵에 관한 것으로서, 더욱 상세하게는 파라데이컵 일측 단부에 입사된 고에너지 빔 중 미소량이 통과하도록 미세 개구를 형성시켜 에너지 측정장치에서 고에너지 입자의 에너지를 측정할 수 있는 기능이 부가된 파라데이컵을 제공하기 위한 것이다. 그 기술적 구성은 대전된 고에너지 빔에 포함된 고에너지 입자의 에너지 측정을 위하여, 관통형성된 미세 개구부를 포함하는 입자 포집체와, 상기 입자 포집체에서 포집된 입자의 전하량 측정을 위해 기준 전위를 형성하도록 구비된 접지체와, 상기 입자 포집체와 접지체 간의 절연을 위하여 구비된 절연체와, 상기 각 구성 요소에서 발생된 물질의 외부 방출을 막고, 대전된 입자가 상기 접지체로의 충돌을 막는 차폐 하우징을 포함하는 것을 특징으로 한다. 파라데이컵, 에너지, 전하량, 형상, 미세 개구, 분광기, 에너지 분포
Abstract:
2차원 도파관형 메쉬미러 테라헤르츠 자유전자레이저 공진기를 개시한다. 상기 2차원 도파관형 메쉬미러 테라헤르츠 자유전자레이저 공진기는 금속통의 진공 단열층, 상기 진공 단열층 내부에 외부로부터 액체질소 또는 액체헬륨 등의 초저온 냉각재를 공급받음으로써 극저온 환경에서도 상전도 또는 초전도로 자기장을 발생시키는 전자석 코일로 동작하는 나선형 또는 평면형 언듈레이터(helical or planar undulator), 상기 언듈레이터 내부에 장착되며 초저온으로 냉각되는 2차원 원형 또는 사각형 도파관(cylindrical or rectangular waveguide) 및 상기 2차원 도파관의 전자빔 입사부 및 출구부 각각에 구비되는 메쉬미러를 포함한다.