WO2011021802A2 - 전자빔 발생장치 - Google Patents
전자빔 발생장치 Download PDFInfo
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- WO2011021802A2 WO2011021802A2 PCT/KR2010/005236 KR2010005236W WO2011021802A2 WO 2011021802 A2 WO2011021802 A2 WO 2011021802A2 KR 2010005236 W KR2010005236 W KR 2010005236W WO 2011021802 A2 WO2011021802 A2 WO 2011021802A2
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- Prior art keywords
- hole
- electron beam
- housing
- field
- pumping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/12—Vessels; Containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
- H01J37/32211—Means for coupling power to the plasma
- H01J37/32229—Waveguides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/16—Means for permitting pumping during operation of the tube or lamp
Definitions
- the present invention relates to an electron beam generator for generating an electron beam using a laser.
- the electron gun refers to a device for discharging the flow of electrons in a thin beam shape, such as electron microscope, traveling wave tube, CRT.
- an electron beam generating apparatus comprising: a rear portion at which an electron beam is generated, a front portion at which an electron beam discharge hole is formed so that the generated electron beam is discharged to the outside, and a side portion connecting the rear portion and the front portion.
- a housing having a first hole formed in the side portion, and a second hole formed in an opposite side portion facing the first hole so as to reduce an electric field imbalance caused by the first hole;
- a wave guide installed at the side portion to supply electromagnetic waves into the housing through the first hole, wherein the electron beam is generated by a laser incident into the housing and is supplied by the electromagnetic waves supplied into the housing. The electron beam is accelerated.
- a laser may be incident into the housing through the front portion.
- the apparatus may further include a first pumping port installed at the side surface portion to discharge the air inside the housing through the second hole to form a vacuum in the housing.
- the second hole may have a different shape from the first hole.
- the second hole may be formed in the shape of a hole extending in one direction.
- the second hole may be formed in a substantially oval or racetrack shape.
- the side portion includes a first side portion and a second side portion, the front portion is coupled to the first side portion, the first side portion and the second side portion is connected by a connecting portion, the second side portion is the rear portion
- the first hole and the second hole may be formed in the first housing or the second housing.
- the housing may be formed with an entrance hole through which a laser is incident into the housing, and a discharge hole through which the laser reflected from the housing is discharged.
- a laser may be incident through the electron beam discharge hole, and the laser reflected from the rear portion may be discharged through the electron beam discharge hole.
- a third hole is formed in the center of the first hole and the second hole in the side portion of the housing so as to reduce the electric field imbalance caused by the first hole, and on the opposite side surface facing the third hole.
- the fourth hole may be formed.
- the third hole and the fourth hole may be formed in the shape of a hole extending in one direction.
- third hole and the fourth hole may be formed in a substantially oval or racetrack shape.
- the second to fourth holes may be provided in the same shape.
- a second pumping port may be installed at a position where the third hole is formed, and a third pumping port may be installed at a position where the fourth hole is formed.
- the laser incident hole and the laser discharge hole may be separately provided in the side surface of the housing, but the present invention drills only one hole in the front of the housing to inject and discharge the laser beam, and at the same time discharge the electron beam. Since it can be used alone, it is easy to manufacture.
- FIG. 1 is a cross-sectional view schematically showing a housing under ideal conditions without a coupling hole
- FIG. 2 is a graph showing an electric field of the housing under ideal conditions without a coupling hole.
- FIG. 3 is a cross-sectional view schematically showing a housing in which one coupling hole is formed
- FIG. 4 is a graph showing an electric field of the housing in which one coupling hole is formed.
- FIG. 5 is a cross-sectional view schematically illustrating a housing in which a coupling hole and one pumping hole are formed
- FIG. 6 is a graph showing an electric field of the housing in which the coupling hole and one pumping hole are formed.
- FIG. 7 is a cross-sectional view schematically showing a housing in which a coupling hole and three pumping holes are formed
- FIG. 8 is a graph showing an electric field of the housing in which the coupling hole and three pumping holes are formed.
- FIG 9 is a layout view of a simulation apparatus of the electron beam generator according to the present embodiment.
- FIG. 10 is a perspective view of the electron beam generator according to the first embodiment.
- FIG. 11 is a cross-sectional view of the electron beam generator according to the first embodiment, cut perpendicularly to the x-axis.
- FIG. 12 is a cross-sectional perspective view of the electron beam generator according to the first embodiment, cut perpendicular to the z axis.
- FIG. 13 is a view illustrating a shape of a pumping hole of the electron beam generator according to the first embodiment.
- FIG. 14 is a diagram showing a relationship between L1 and a Fourier coefficient of the electron beam generator according to the first embodiment.
- 15 is a perspective view of an electron beam generator according to a second embodiment.
- 16 is a side sectional view of the electron beam generator according to the second embodiment, cut perpendicular to the x-axis.
- 17 is a side sectional view of the electron beam generator according to the second embodiment, cut perpendicular to the z axis.
- FIG. 18 is a cross-sectional perspective view of the electron beam generator according to the second embodiment, cut perpendicular to the z axis.
- FIG. 19 is a diagram showing a relationship between L2 and a Fourier coefficient in the electron beam generator according to the second embodiment.
- FIG. 20 is a diagram showing angle distributions of electric fields in the first and second embodiments.
- FIG. 21 is a diagram showing simulation results for normalized emittance in the y-axis direction with respect to the z-axis in the second embodiment.
- the emitter ⁇ has three elements and can be expressed as in Equation 1.
- the total emitter ⁇ is very high compared to the thermal emitter. This is because the increase in the emittance due to the space charge effect and the high frequency dynamics effect is negligible compared to the thermal emitter.
- FIG. 1 is a cross-sectional view schematically showing a housing under ideal conditions without a coupling hole
- FIG. 2 is a graph showing an electric field of the housing under ideal conditions without a coupling hole.
- the direction perpendicular to the ground is the traveling direction of the electron beam
- the circular border represents the housing.
- the x and y axes represent Cartesian coordinate axes with respect to the center of the resonant cavity inside the housing.
- ⁇ is the distance from the center of the resonant cavity to an arbitrary position T
- ⁇ is the angle formed by the straight line connecting the center of the resonant cavity and the coordinate T with respect to the x-axis.
- FIG. 2 Denotes an electric field at a predetermined distance from the center of the resonance cavity.
- the electric field generated in the resonant cavity of the electron beam generator may be represented by Equation 2 in general.
- silver Is the first root of Is the maximum electric field, R is the radius of the resonant cavity, Denotes the m th Fourier coefficient.
- R is the radius of the resonant cavity
- a coupling hole is inevitably formed on the side of the housing in order to supply high frequency power required for electron beam acceleration.
- the coupling hole may cause a lateral (x-y plane direction) force inside the resonant cavity, and thus an electric field asymmetry may occur.
- the asymmetry of the electric field can increase in the multipole field, which generates a transverse momentum kick that increases the emitter for the electron beam generated by the electron beam generator.
- Panofsky-Wenzel's theorem is the lateral momentum kick in the resonant cavity electric field as To provide.
- Equation 3 Is the resonant frequency of the cavity, L is the length of the resonant cavity, Is the longitudinal component of the electric field of the resonant cavity.
- the Panofsky-Wenzel theorem is applicable to constant velocity cases. In spite of the increase in the kinetic energy, the resonant cavity region satisfies this condition in the present embodiment because only a small amount of electrons increase in the cavity.
- the transverse momentum kick in Equation 3 represents the increase in total emittance as described below.
- the asymmetrical shape of the resonant cavity causes a multipole field.
- this multipole field contains a traveling wave traveling along the y axis.
- Phase asymmetry of the multipole field in the y-axis due to traveling wave components should be considered in the electric field analysis of the resonant cavity.
- the electric field in the resonant cavity may be expressed as a superposition of a multipole field as shown in Equation 4.
- Is the maximum value of the electric field Is the phase distribution coefficient in the y-axis direction
- Is the Fourier coefficient of the multipole field Is the Fourier coefficient of the multipole field
- ⁇ is the resonant frequency of the cavity. Emittance growth due to the multipole field can be calculated by the Fourier coefficient of Equation 4.
- the emittance due to the monopole component can be calculated as
- Guan has a very small power flow inside the standing wave type high frequency electron gun. Proved to be negligible. Thus, the amplitude term in Equation 6 is sufficient to calculate the increase in the emittance due to the multipole field. According to the results of Palmer's research, the increase in the emission by the dipole and quadrupole fields is calculated as follows.
- L is the length of the resonant cavity where an unbalanced high frequency electric field exists.
- Equation 9 the first term is a monopole field, the second term is a dipole field, and the third term is a quadrupole field.
- M, D, and Q which are normalized fourier coefficients, may be expressed as Equation 10.
- Equation 11 is a monopole field, dipole field, quadrupole field in the electron beam generator Influence on. Is the emission caused by the monopole field, The emitters produced by the dipole field, Denotes the emission caused by the quadrupole field. , , The value of can be calculated by Equation 12.
- Equation 12 e is the charge amount of the electron, Is the mass of electrons, c is the speed of light, k is the frequency, Is the electron beam size in the y-axis direction, Where is the electron beam size in the z-axis direction, L is the length of the resonant cavity. To reduce the value of, it is necessary to remove the dipole and quadrupole fields except for the monopole field, which is essential for electron beam acceleration.
- FIG. 3 is a cross-sectional view schematically showing a housing in which one coupling hole is formed
- FIG. 4 is a graph showing an electric field of the housing in which one coupling hole is formed.
- the X is The simulation result of is the dipole field generated by the coupling hole. This value is a result obtained using only the values of the first, second and third terms of Equation (9). As shown in Figure 4, it can be seen that a relatively very strong electric field is formed in the direction in which the coupling hole is formed.
- FIG. 5 is a cross-sectional view schematically illustrating a housing in which a coupling hole and one pumping hole are formed
- FIG. 6 is a graph showing an electric field of the housing in which the coupling hole and one pumping hole are formed.
- a coupling hole through which electromagnetic waves are supplied is formed in an upper portion of the housing, and a pumping hole is formed in a lower portion of the housing.
- the pumping hole is to generate a dipole field having a phase difference of 180 degrees with respect to the dipole field generated by the coupling hole. Accordingly, the dipole field generated by the coupling hole may be offset by using the dipole field generated by the pumping hole.
- the shape and size of the pumping hole is generally the same as the coupling hole. However, since the boundary conditions of the pumping hole and the coupling hole are different, the amount of dipole field reduction may be insufficient. On the other hand, the dipole field can be reduced by a simple method of changing the dimension of the pumping hole. However, this dipole field reduction method does not affect the quadrupole field. As a result, additional removal is required to remove the quadrupole field.
- Racetrack-type holes can reduce quadrupole fields.
- the values of the dipole field formed by the coupling hole and the dipole field formed by the pumping hole are shown.
- the dipole field component is canceled and the quadrupole dominant field whose main component is the quadrupole field remains.
- the dipole field component is removed, it can be seen that the emitters are significantly reduced compared to the result of FIG. 4.
- FIG. 7 is a cross-sectional view schematically showing a housing in which a coupling hole and three pumping holes are formed
- FIG. 8 is a graph showing an electric field of the housing in which the coupling hole and three pumping holes are formed.
- a coupling hole is formed in an upper portion of the housing, and a first pumping hole and a second pumping hole and a third pumping hole are respectively formed in the lower part of the housing and the left and right sides thereof.
- the values of the dipole field formed by the coupling hole and the dipole field formed by the first, second and third pumping holes are shown.
- the dipole field generated by the first, second, and third pumping holes and the dipole field generated by the coupling hole are combined, the dipole field and the quadrupole field are canceled.
- the octopole ominant field in which the octopole field is the main component remains.
- the dipole field and the quadrupole field are removed, it can be seen that the emission is significantly reduced compared to the result of FIG. 4.
- FIG 9 is a layout view of a simulation apparatus of the electron beam generator according to the present embodiment.
- the electron beam generator 100 emits an electron beam, and the emitted electron beam is concentrated by an outer solenoid 300 while passing through the passage 400 and accelerating a column. Accelerate as you pass.
- Solenoids 300 and booster linear accelerators are used to eliminate the increase in emission due to space charge. Under these simulation conditions, the increase in the emission from the multipole field of the resonant cavity can be calculated by the mathematical simulation program PARMELA.
- FIG. 10 is a perspective view of the electron beam generator according to the first embodiment.
- FIG. 11 is a cross-sectional view of the electron beam generator according to the first embodiment, cut perpendicularly to the x-axis.
- FIG. 12 is a cross-sectional perspective view of the electron beam generator according to the first embodiment, cut perpendicular to the z axis.
- the embodiment includes a first housing 140, a second housing 120, a wave guide 110, a pumping port 160, and an electron beam discharge tube 150.
- a first housing 140 As shown in FIG. 10, the embodiment includes a first housing 140, a second housing 120, a wave guide 110, a pumping port 160, and an electron beam discharge tube 150.
- the advancing direction of the electron beam will be described with the z axis.
- the second housing 120 has a cylindrical shape and includes an electrode 121, a disc 124, and a side wall 122.
- the electrode 121 corresponds to the right side surface of the second housing 120 with reference to FIG. 11.
- the electrode 121 is a portion where the incident laser beam collides to generate an electron beam.
- a disk 124 facing the left side from the electrode 121 at a predetermined distance is provided, and a side wall 122 connecting the electrode 121 and the disk 124 is provided.
- Inside the second resonant cavity 123 is provided inside the second resonant cavity 123 is provided.
- the connection part 130 includes a curved part 131 and a connection cavity 132.
- the curved portion 131 is provided in a ring shape having a semicircular cross section and one side is coupled to the disc 124 and the other side is coupled to the disc 141.
- the connection cavity 132 is a space for connecting the first resonant cavity 144 and the second resonant cavity 123.
- the first housing 140 includes a disc 141, a disc 143, and a side wall 142.
- the disc 141 is connected to the curved portion 131, the disc 143 is located on the left side with reference to FIG. 11 facing the disc 141, the side wall 142 is the disc 141 and the disc 143.
- Connect Inside the first resonant cavity 144 is provided.
- the first housing 140 and the second housing 120 it may be configured as a cylindrical housing.
- the waveguide 110 includes a side wall 111 and a bottom plate 113.
- the side wall 111 may be provided in a rectangular box shape, and the bottom plate 113 is connected to the bottom surface.
- An electromagnetic wave cavity 112 is provided inside the electromagnetic wave generating unit (not shown) to transfer the electromagnetic wave to the first resonant cavity 144.
- the bottom plate 113 is provided with a coupling hole 114 to communicate the electromagnetic wave cavity 112 and the first resonant cavity 144, to provide high frequency power to the resonant cavity.
- the coupling hole 114 causes high frequency imbalance in the first resonant cavity 144, and may also cause electric field imbalance.
- the first pumping port 160 includes a side wall 161 and a bottom plate 164.
- the first pumping cavity 163 is provided inside the side wall 161.
- the first pumping cavity 163 is a portion connected to a vacuum pump (not shown) as a space for vacuum exhaust to maintain the degree of vacuum of the first resonant cavity 144.
- the bottom plate 164 is provided with a first pumping hole 165 for communicating the first resonant cavity 144 and the first pumping cavity 163. Two cycle components may be removed by adjusting the first pumping hole 165 of the first pumping port 160.
- the electron beam discharge tube 150 includes a side wall 151.
- the side wall 151 is coupled to the disc 143 while one side thereof is extended in a radially smooth curved surface, and the other side is provided with a hole 154 to discharge the electron beam.
- the laser beam may be incident obliquely with respect to the z axis through the hole 154, and the electron beam generated by the laser beam may be emitted through the hole 154. That is, the hole 154 may simultaneously function as an incident hole in which a laser beam is incident, an emission hole in which a reflected laser beam is discharged, and an electron beam emission hole in which an electron beam is emitted.
- three holes 154 may be provided instead of one.
- one hole in the side surface of the electron beam discharge tube 150, the first housing 140 or the second housing 120 is an incident hole through which the laser beam is incident, and the other hole is discharged by reflecting the laser beam.
- the hole and the other hole may be provided as an electron beam discharge hole through which the electron beam is discharged.
- the electron beam travels in the Z-axis direction.
- the field maps used in the emission dynamics calculations were generated by a 3D high frequency calculator.
- FIG. 13 is a view illustrating a shape of a pumping hole of the electron beam generator according to the first embodiment.
- the difference between the major axis length W and the minor axis length H of the first pumping hole 165 is L1.
- R1 is the radius of the curved surface portions at both ends of the first pumping hole 165. Removal of the multipole field is accomplished by adjusting L1.
- FIG. 14 is a diagram showing a relationship between L1 and a Fourier coefficient of the electron beam generator according to the first embodiment.
- the dipole field offset oscillation obtained by mathematical analysis using a calculator is a portion represented by a rectangle in FIG. 14.
- the connection line of FIG. 14 is obtained by Equation 6.
- Phase distribution coefficient in the y axis direction Can be calculated by this analysis. Is relatively small value such as 10 ⁇ -5 and can be ignored in this experiment.
- the electric field of the pumping hole should be in evanescent mode, and further optimization process is required because the boundary conditions of the coupling hole and the pumping hole are different. It is possible to optimize the dipole mode by adjusting the pumping hole dimension (L1). Since the dimensioning of the coupling hole changes the resonance frequency of the resonance cavity, further dimension adjustment of the resonance cavity is necessary.
- the quadrupole field does not change, while the dipole field at the optimal dimension decreases as shown in FIG. As shown in FIG. 14, after the dipole field removal process, the quadrupole field is larger than the dipole field.
- Two additional pumping holes at 90 degrees to the pumping and coupling holes can effectively eliminate the quadrupole field.
- the second embodiment has a simple cylindrical shape and includes two additional pumping holes that are easy to manufacture.
- 15 is a perspective view of an electron beam generator according to a second embodiment.
- 16 is a side sectional view of the electron beam generator according to the second embodiment, cut perpendicular to the x-axis.
- 17 is a side sectional view of the electron beam generator according to the second embodiment, cut perpendicular to the z axis.
- 18 is a cross-sectional perspective view of the electron beam generator according to the second embodiment, cut perpendicular to the z axis. 16 and 17, redundant descriptions of the similar components to those of the first embodiment will be omitted.
- the second pumping port 270 includes a side wall 271 and a bottom plate 274.
- a second pumping cavity 273 is provided inside, and a second pumping hole 275 is provided in the bottom plate 274.
- the third pumping port 280 includes a side wall 281 and a bottom plate 284.
- a third pumping cavity 283 is provided inside, and a third pumping hole 285 is provided in the bottom plate 284.
- the second pumping cavity 273 and the third pumping cavity 283 are connected to a vacuum pump (not shown) to maintain the vacuum degree of the resonant cavity.
- FIG. 19 is a diagram showing a relationship between L2 and a Fourier coefficient in the electron beam generator according to the second embodiment.
- L2 of the first pumping hole 165, the second pumping hole 275 and the third pumping hole 285 are all the same dimensions
- L1 is fixed to 11.65
- L2 of the three pumping holes are changed to be the same. Measured while.
- the optimum conditions may be found while varying L2 values of the first pumping hole 165, the second pumping hole 275, and the third pumping hole 285.
- FIG. 19 it is possible to find an optimal condition in which the dipole field and the quadrupole field are simultaneously minimized.
- the L2 of the three pumping holes is 11.4 to 11.5 mm
- the higher order field tends to increase.
- the dipole and quadrupole fields are reduced by approximately one tenth to one hundredth.
- the left side of FIG. 19 shows the value of L2 before removing the dipole field and the value of L2 after removing the dipole field. This shows that the dipole field is considerably reduced by the dipole field removal process, but it does not affect the quadrupole field.
- FIG. 20 is a diagram showing angle distributions of electric fields in the first and second embodiments.
- FIG. 21 is a diagram showing simulation results for normalized emittance in the y-axis direction with respect to the z-axis in the second embodiment.
- the rectangular part represents an ideal case without coupling holes and pumping holes.
- 21 shows the result of the dipole field removal process. Circles in FIG. 21 represent dipole and quadrupole field removal cases.
- BNL GUN-III In the case of using BNL GUN-III, it is represented by diamond.
- the BNL GUN-III (BNL / SLAC / UCLA 1.6 cell S-band photocathode high frequency electron gun) is a model used by the POSTECH Accelerator Laboratory.
- the PARMELA simulation showed that the minimum lateral effective emittance was approximately 0.53 mm-mrad.
- high-order multipole fields did not appear as shown in FIG. Prior to the adjustment, it was approximately 1.65 mm-mrad, as indicated by the diamond in FIG. 21, which is more than three times larger than the ideal case.
- the dipole field removal process can reduce the transverse effective emittance to approximately 0.98 mm-mrad, as indicated by the triangle in FIG. 21. Eventually, dipole field removal can reduce emission by approximately 40%.
- the emitters were approximately 0.60 mm-mrad, as shown in the circle in FIG. 21. Under these optimization conditions, the emitters were found to be approximately 60% lower than with BNL GUN-III.
- a step of injecting a laser beam into the electron beam generator through the holes 154 and 254 may be performed.
- the electron beam generated inside the electron beam generator by the incident laser beam may be discharged through the holes 154 and 254.
- three holes may be provided instead of one.
- one hole in the side of the electron beam discharge tube, the first housing or the second housing is an incident hole through which the laser beam is incident, the other hole is an emission hole through which the laser beam is reflected, and the other hole is an electron beam is emitted. It may be provided as an electron beam discharge hole.
- the electron beam may be discharged while the electron beam is accelerated by the electromagnetic wave incident on the wave guide.
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Abstract
Description
Claims (14)
- 전자빔이 생성되는 후면부와, 생성된 상기 전자빔이 외부로 배출되도록 전자빔배출홀이 형성된 전면부와, 상기 후면부와 상기 전면부를 연결하는 측면부를 포함하며, 상기 측면부에는 제1홀이 형성되고, 상기 제1홀에 의하여 유발되는 전기장 불균형을 감소시키도록 상기 제1홀과 마주보는 반대편 측면부에 제2홀이 형성된 하우징; 및상기 제1홀을 통하여 상기 하우징 내부로 전자기파를 공급하도록 상기 측면부에 설치되는 웨이브가이드;를 포함하며,상기 하우징 내부로 입사된 레이저에 의하여 상기 전자빔이 생성되고 상기 하우징 내부로 공급된 전자기파에 의하여 상기 전자빔이 가속되는 전자빔 발생장치.
- 제1항에 있어서,상기 전면부를 통하여 레이저가 상기 하우징 내부로 입사되는 것을 특징으로 하는 전자빔 발생장치.
- 제1항에 있어서,상기 제2홀을 통하여 상기 하우징 내부의 공기를 배출함으로써 상기 하우징 내부에 진공을 형성할 수 있도록 상기 측면부에 설치되는 제1펌핑포트를 더 포함하는 전자빔 발생장치.
- 제1항에 있어서,상기 제2홀은 상기 제1홀과 형상이 상이한 것을 특징으로 하는 전자빔 발생장치.
- 제1항에 있어서,상기 제2홀은 일측 방향으로 연장된 홀의 형상으로 형성된 전자빔 발생장치.
- 제5항에 있어서,상기 제2홀은 실질적으로 타원형 또는 경기장(racetrack)형태로 형성된 전자빔 발생장치.
- 제1항에 있어서,상기 측면부는 제1측면부와 제2측면부를 포함하며, 상기 전면부는 상기 제1측면부에 결합되고, 상기 제1측면부와 상기 제2측면부는 연결부에 의하여 연결되며, 상기 제2측면부는 상기 후면부에 결합되고,상기 제1홀 및 상기 제2홀은 상기 제1하우징 또는 상기 제2하우징에 형성된 것을 특징으로 하는 전자빔 발생장치.
- 제1항에 있어서,상기 하우징에는 레이저가 상기 하우징 내부로 입사되는 입사홀과, 상기 하우징 내부에서 반사된 레이저가 배출되는 배출홀이 형성된 전자빔 발생장치.
- 제1항에 있어서,상기 전자빔배출홀을 통하여 레이저가 입사되고, 상기 후면부에서 반사된 레이저가 상기 전자빔배출홀을 통하여 배출되는 전자빔 발생장치.
- 제1항에 있어서,상기 제1홀에 의하여 유발되는 전기장 불균형을 감소시키도록 상기 하우징의 상기 측면부에서 상기 제1홀과 상기 제2홀의 가운데에 제3홀이 형성되며, 상기 제3홀과 마주보는 반대편 측면부에 제4홀이 형성된 전자빔 발생장치.
- 제10항에 있어서,상기 제3홀과 상기 제4홀은 일측 방향으로 연장된 홀의 형상으로 형성된 전자빔 발생장치.
- 제11항에 있어서,상기 제3홀과 상기 제4홀은 실질적으로 타원형 또는 경기장(racetrack)형태로 형성된 전자빔 발생장치.
- 제10항에 있어서,상기 제2 내지 제4홀은 동일 형상으로 마련된 전자빔 발생장치.
- 제10항에 있어서,상기 제3홀이 형성된 위치에 제2펌핑포트가 설치되고, 상기 제4홀이 형성된 위치에 제3펌핑포트가 설치된 전자빔 발생장치.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011532032A JP5386588B2 (ja) | 2009-08-21 | 2010-08-10 | 電子ビーム発生装置 |
| DE112010000022.0T DE112010000022B4 (de) | 2009-08-21 | 2010-08-10 | Elektronenstrahlerzeugungsvorrichtung |
| US13/122,109 US8736169B2 (en) | 2009-08-21 | 2010-08-10 | Electron beam generating apparatus |
| GB1106284.1A GB2484763B (en) | 2009-08-21 | 2010-08-10 | Electron beam generating apparatus |
| CN201080002969.2A CN102187422B (zh) | 2009-08-21 | 2010-08-10 | 电子束发生装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0077796 | 2009-08-21 | ||
| KR1020090077796A KR101041271B1 (ko) | 2009-08-21 | 2009-08-21 | 전자빔 발생장치 및 전자빔 발생방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011021802A2 true WO2011021802A2 (ko) | 2011-02-24 |
| WO2011021802A3 WO2011021802A3 (ko) | 2011-06-16 |
Family
ID=43607442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2010/005236 Ceased WO2011021802A2 (ko) | 2009-08-21 | 2010-08-10 | 전자빔 발생장치 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8736169B2 (ko) |
| JP (1) | JP5386588B2 (ko) |
| KR (1) | KR101041271B1 (ko) |
| CN (1) | CN102187422B (ko) |
| DE (1) | DE112010000022B4 (ko) |
| GB (1) | GB2484763B (ko) |
| WO (1) | WO2011021802A2 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101364104B1 (ko) * | 2012-08-21 | 2014-02-20 | 포항공과대학교 산학협력단 | 전자 빔 발생 장치 및 이를 이용한 전자 빔 발생 방법 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241799A (zh) * | 2014-09-19 | 2014-12-24 | 电子科技大学 | 一种用于真空电子器件的双端输入或输出谐振器 |
| KR20180078884A (ko) * | 2016-12-30 | 2018-07-10 | 한국원자력연구원 | 전자빔 가속기용 rf 광전자총 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636344B2 (ja) * | 1985-03-08 | 1994-05-11 | 株式会社日立製作所 | 液体金属イオン発生方法とその装置 |
| JPH0766749B2 (ja) * | 1985-05-30 | 1995-07-19 | 株式会社東芝 | 超高周波電子管 |
| JPS63128523A (ja) * | 1986-11-19 | 1988-06-01 | Toshiba Corp | ジヤイロトロン装置 |
| JPH0817081B2 (ja) * | 1988-10-31 | 1996-02-21 | 株式会社東芝 | 超高周波発振管装置 |
| JPH0612992A (ja) * | 1992-06-26 | 1994-01-21 | Toshiba Corp | ジャイロトロン装置 |
| JPH06176723A (ja) * | 1992-12-07 | 1994-06-24 | Hitachi Ltd | 電子線発生装置 |
| JPH0750135A (ja) * | 1993-08-05 | 1995-02-21 | Nec Corp | 多空胴クライストロン |
| JP3119285B2 (ja) * | 1993-08-24 | 2000-12-18 | 株式会社日立製作所 | 光陰極とこれを用いた電子銃並びに加速器 |
| GB9322934D0 (en) * | 1993-11-08 | 1994-01-26 | Eev Ltd | Linear electron beam tube arrangements |
| JPH1123482A (ja) * | 1997-06-30 | 1999-01-29 | Advantest Corp | ビームの照射位置調整方法、レーザビームを用いた異物検出装置、走査型電子顕微鏡及び組成分析装置 |
| JP3647592B2 (ja) * | 1997-03-04 | 2005-05-11 | 松下電器産業株式会社 | プラズマ源及びこれを用いたイオン源並びにプラズマ処理装置 |
| JP3268237B2 (ja) * | 1997-07-29 | 2002-03-25 | 住友重機械工業株式会社 | フォトカソードを用いた電子銃 |
| JP3707932B2 (ja) * | 1998-06-26 | 2005-10-19 | 川崎重工業株式会社 | 高周波電子銃 |
| JP2000223056A (ja) * | 1999-01-29 | 2000-08-11 | Toshiba Corp | 電子ビーム発生装置 |
| US6448722B1 (en) * | 2000-03-29 | 2002-09-10 | Duly Research Inc. | Permanent magnet focused X-band photoinjector |
| KR100783409B1 (ko) * | 2005-12-27 | 2007-12-11 | 엘지전자 주식회사 | 마그네트론 |
| KR100787168B1 (ko) * | 2006-02-10 | 2007-12-21 | (주)인텍 | 전자빔 발생장치 |
-
2009
- 2009-08-21 KR KR1020090077796A patent/KR101041271B1/ko not_active Expired - Fee Related
-
2010
- 2010-08-10 US US13/122,109 patent/US8736169B2/en not_active Expired - Fee Related
- 2010-08-10 JP JP2011532032A patent/JP5386588B2/ja not_active Expired - Fee Related
- 2010-08-10 GB GB1106284.1A patent/GB2484763B/en not_active Expired - Fee Related
- 2010-08-10 DE DE112010000022.0T patent/DE112010000022B4/de not_active Expired - Fee Related
- 2010-08-10 WO PCT/KR2010/005236 patent/WO2011021802A2/ko not_active Ceased
- 2010-08-10 CN CN201080002969.2A patent/CN102187422B/zh not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101364104B1 (ko) * | 2012-08-21 | 2014-02-20 | 포항공과대학교 산학협력단 | 전자 빔 발생 장치 및 이를 이용한 전자 빔 발생 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112010000022T5 (de) | 2012-12-27 |
| DE112010000022B4 (de) | 2015-02-12 |
| JP2012506122A (ja) | 2012-03-08 |
| GB2484763B (en) | 2015-03-04 |
| GB2484763A (en) | 2012-04-25 |
| WO2011021802A3 (ko) | 2011-06-16 |
| JP5386588B2 (ja) | 2014-01-15 |
| US20120133281A1 (en) | 2012-05-31 |
| GB201106284D0 (en) | 2011-05-25 |
| KR101041271B1 (ko) | 2011-06-14 |
| CN102187422A (zh) | 2011-09-14 |
| KR20110020085A (ko) | 2011-03-02 |
| CN102187422B (zh) | 2014-08-13 |
| US8736169B2 (en) | 2014-05-27 |
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