WO2003081605A1 - Dispositif d'agrandissement d'image de rayons x - Google Patents
Dispositif d'agrandissement d'image de rayons x Download PDFInfo
- Publication number
- WO2003081605A1 WO2003081605A1 PCT/JP2003/003452 JP0303452W WO03081605A1 WO 2003081605 A1 WO2003081605 A1 WO 2003081605A1 JP 0303452 W JP0303452 W JP 0303452W WO 03081605 A1 WO03081605 A1 WO 03081605A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ray
- sample
- ray image
- rays
- magnification
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K7/00—Gamma- or X-ray microscopes
Definitions
- the present invention relates to an X-ray image magnifying apparatus capable of observing a sample using X-rays.
- an X-ray microscope capable of observing a sample without processing has been used in living body observation, semiconductor inspection, and the like.
- an imaging X-ray microscope is configured to irradiate a sample with X-rays, magnify and image the X-ray image on a detector by an imaging optical system, and observe the sample.
- a zone plate optical system utilizing diffraction Japanese Patent Laid-Open No. 9-251100, etc.
- a Schwarzschild optical system for example, Japanese Patent Laid-Open Publication No. Hei 6-3000, which is obtained by laminating a multilayer film having the following, is used.
- Japanese Patent Application Laid-Open No. Hei 9-251101 discloses a soft X-ray in which focusing is performed by moving the detector in the optical axis direction and changing the distance between the detector and the zone plate type objective lens.
- a microscope is disclosed, a change in imaging magnification by this technique requires a slight change in wavelength because a zone plate having high wavelength selectivity is used.
- the loss of X-ray light is large, monochromaticity is required, and the use of synchrotron radiation is required.
- Japanese Patent Application Laid-Open No. 6-300900 discloses that after converting an image enlarged by a Schwarzschild type multilayer mirror into visible light with a phosphor screen or the like, a plurality of r from low magnification to high magnification is provided. Technique for observing the converted image with an optical microscope while changing the magnification Although the technique is described, in this technique, the wavelength that can be observed is limited because a multilayer mirror is used, and the work efficiency is reduced because the wavelength is converted to visible light.
- a grazing incidence mirror with high utilization efficiency and no wavelength selectivity is suitable as an optical element in a laboratory scale X-ray microscope.
- the present invention has been made to solve the above problems, and has as its object to provide an X-ray image magnifying apparatus capable of changing an imaging magnification using an oblique incidence mirror having no wavelength selectivity.
- an X-ray image magnifying apparatus includes an illumination optical system that irradiates a sample with X-rays emitted from a source, and an oblique incidence mirror including a hyperboloid of revolution and a spheroid.
- An objective lens configured to magnify an X-ray transmitted through the sample at a predetermined position
- an X-ray image detecting unit configured to detect an X-ray image formed by the objective lens
- the X-ray image detecting unit An imaging magnification adjusting means for adjusting an imaging magnification of the X-ray image by moving at least one of the sample and the illumination optical system along an optical axis direction.
- the position where the sample is placed is the object point o
- the oblique incidence mirror W consists of a hyperboloid of revolution and a spheroid
- the position of the junction between the hyperboloid and the spheroid on the optical axis is s
- the position of the image plane is Let I be the distance from the object point o to the junction S of the grazing incidence mirror, and let the distance from the position S to the position I be b.
- the distances a and b are originally fixed values due to their design, and therefore the magnification M is also a fixed value.
- the magnification M is also a fixed value.
- the distances a and b were adjusted and the imaging magnification M was changed.
- the change in resolution when the magnification M is changed Is shown in FIG. From FIG.
- the imaging magnification can be changed without replacing the oblique incidence mirror.
- the use of a grazing incidence mirror as the objective lens has the following advantages as compared with the conventional example using a zone plate optical system and a Sparschild type multilayer J3 mirror as the objective lens.
- the observable wavelength is not limited to a single wavelength and can be observed in a wide wavelength range as compared with a conventional example using a Sparschild type multilayer mirror as an objective lens.
- the X-ray image magnifying apparatus of the present invention may further include a light irradiating unit that irradiates the sample with any one of visible light and ultraviolet light, and an image formed by light transmitted through the sample and reflected by the objective lens. And light detecting means for detecting As a result, there is an advantage that the handling and observation of the apparatus are easier and the radiation damage to the sample is reduced as compared with the case where only X-rays are used.
- FIG. 1 is a diagram for explaining the principle of the present invention.
- Fig. 2 is a graph showing the change in resolution when the magnification is changed in an oblique incidence mirror.
- FIG. 3 is a cross-sectional view illustrating a schematic configuration of the X-ray microscope according to the first embodiment.
- FIG. 4 is a diagram illustrating an example of a moving mechanism of the X-ray detector.
- FIG. 5 is a diagram for explaining the operation when observing at a low magnification.
- FIG. 6 is a diagram for explaining an operation for observation at a high magnification.
- FIG. 7 is a cross-sectional view illustrating a schematic configuration of an X-ray microscope according to the second embodiment.
- FIG. 8 is a diagram showing the arrangement of the illumination optical system.
- FIG. 3 is a sectional view showing a schematic configuration of the X-ray microscope according to the first embodiment of the present invention.
- the apparatus shown in Fig. 1 consists of an X-ray source 1, a filter 2, an oblique illumination mirror 3 having a spheroidal shape using total internal reflection, a sample 4, and an oblique spheroidal and spheroidal surface of the objective lens. It is configured to include an incident mirror 5 and an X-ray detector 6.
- the X-ray source 1 for example, a gas puff type plasma X-ray source is used.
- Gas-puff type plasma X-rays generated from the X-ray source 1 are limited to the wavelength region of the X-rays to be observed by the filter 2, and are irradiated on the sample 4 by the oblique incidence mirror 3 for illumination.
- the X-ray transmitted through the sample 4 is incident on the oblique incidence mirror 5, and an enlarged X-ray image is detected on the light receiving surface of the X-ray detector 6.
- adjust the distance b from the grazing incidence mirror 5 to the detector 6 by moving the X-ray detector 6 along the optical axis direction of arrow Q so that the desired magnification is obtained. .
- the image detected by the X-ray detector 6 is considered. Then, the specimen 4 is moved in the optical axis direction of the arrow P by a moving mechanism (not shown in FIG. 3) so that the focus is adjusted, and the distance a between the specimen 4 and the grazing incidence mirror 5 is adjusted. I do.
- the X-ray detector 6 may be moved so as to be focused. Finally, the oblique incidence mirror for illumination 3 is moved so as to obtain optimal illumination.
- FIG. 8 shows the arrangement of the illumination optical system.
- O is a light source and I is a converging point (image of the light source O), and the above-mentioned equation (1) holds.
- the oblique incidence mirror 3 for illumination is moved so that the position of the sample 4 coincides with the focal point I.
- the sample 4 and the illumination oblique incidence mirror 3 in FIG. 3 need to have a mechanism capable of moving several mm along the optical axis direction of the arrow P, and the X-ray detector 6 is required to have a mechanism capable of moving several meters.
- the X-ray in this region has a large absorption of air, and its optical path needs to be kept in a vacuum.
- Grazing incidence mirror 3, sample 4, grazing incidence The mirror 5 and X-ray detector 6 are set in a vacuum vessel. Therefore, it is preferable that the moving mechanism of the oblique incidence mirror 3, the sample 4, the oblique incidence mirror 5, and the X-ray detector 6 can be controlled from outside the vacuum vessel. Note that a configuration in which only the sample 4 is installed in the air can be adopted.
- the moving range of the sample 4, the grazing incidence mirror 3, and the grazing incidence mirror 5 is as small as several millimeters, these moving mechanisms can be configured with commercially available moving stages, manipulators, and the like.
- the use of a vacuum bellows 14 as shown in FIG. 4 enables a large range of about several meters to be moved.
- the vacuum bellows 14 are connected to the vacuum flanges 12 a and 12 b by the respective vacuum pipes 11.
- the vacuum flange 12 a is connected to a vacuum pipe having the oblique incidence mirror 5 shown in FIG. 3, and the vacuum flange 12 b is connected to a vacuum flange 15 for connection with the X-ray detector 6.
- Each of the vacuum pipe 11 and the vacuum flanges 12a and 12b has a column 16 attached thereto, and a hole through which a bolt 17 penetrates.
- a bolt 17 is fixed in the longitudinal direction at the end of the support of the vacuum flanges 12a and 12b.
- Nuts 13a to 13d are provided. When adjusting the position of the X-ray detector 6, loosen the nuts 13c and 13d, expand and contract the vacuum bellows 14 to adjust it to the desired length, and then adjust the nuts 13c and 13 Fix the length of the vacuum bellows 14 by tightening d.
- design magnification M is 100
- distance a between sample 4 and grazing incidence mirror 5 is 2 O mm
- grazing incidence mirror 5 and X-ray detector 6 Using a grazing incidence mirror 5 with a distance b of 200 O mm, observation at about 40 ⁇ at low magnification and about 200 ⁇ at high magnification is performed. Further, the position and inclination of the oblique incidence mirror for illumination 3, the sample 4, and the oblique incidence mirror 5 can be independently adjusted by the moving stages 7, 8, and 9, respectively.
- the distance b between the oblique incidence mirror 5 and the X-ray detector 6 should be about 80 mm as shown in FIG.
- the sample 4 is moved by the moving stage 8 so that it is in focus.
- the distance a between the oblique incidence mirrors 5 is adjusted, and the illumination stage 3 for illumination is moved by the moving stage 7 so as to obtain optimal illumination.
- the distance b between the grazing incidence mirror 5 and the X-ray detector 6 is set to about 400 mm.
- the vacuum bellows 14 of the bellows vacuum pipe 10 is extended so that the sample 4 is moved by the moving stage 8 so as to focus while observing the image of the X-ray detector 6.
- the distance a between the oblique incidence mirrors 5 is adjusted, and the oblique incidence mirror 3 for illumination is moved by the moving stage 7 so as to obtain optimal illumination.
- the distance a between the sample 4 and the grazing incidence mirror 5 and the distance between the grazing incidence mirror 5 and the X-ray detector 6 By adjusting b, it is not necessary to replace the grazing incidence mirror 5. In addition, the imaging magnification can be changed.
- the method of moving the grazing incidence mirrors 3, 5, the sample 4, and the X-ray detector 6 is not limited to the above-described method, and various changes and modifications may be made as long as the mechanism has a mechanism capable of moving the target position. Deformation can be added.
- the second embodiment is configured to easily perform low-magnification observation with visible light or the like for sample exploration.
- the configuration of the second embodiment is different from the configuration of the first embodiment in that a visible light source 21, mirrors 22 and 23 that can be inserted and retracted on the optical path, arrows R of these mirrors, Straight insertion terminals 25 and 26 for driving insertion and retraction operations in the S direction, and a detector 24 sensitive to visible light are provided.
- a visible light source 21, mirrors 22 and 23 that can be inserted and retracted on the optical path, arrows R of these mirrors, Straight insertion terminals 25 and 26 for driving insertion and retraction operations in the S direction, and a detector 24 sensitive to visible light are provided.
- mirrors 22a and 23a indicated by solid lines show a state retracted from the optical path
- mirrors 22b and 23b shown by broken lines show a state inserted into the optical path.
- the design magnification M is 100
- the distance a between the sample 4 and the grazing incidence mirror 5 is 20 mm
- the grazing incidence mirror 5 and the X-ray detector 6 Observation at a low magnification (approximately 40 times) is performed with visible light using an oblique incidence mirror 5 with the distance b set to 200 mm, and high magnification (approx. (0 ⁇ ) observation.
- the mirrors 22a and 23a are driven by driving the linear introduction terminals 25 and 26, respectively. Enter positions 2 2 b and 2 3 b on the axis.
- the visible light source 21 is turned on.
- the visible light is reflected by the mirror 22 and is irradiated on the sample 4 by the oblique incidence mirror 3 for illumination.
- the visible light transmitted through the sample 4 is reflected by the oblique incidence mirror 15, reflected by the mirror 23, and is incident on the detector 24.
- the distance between the grazing incidence mirror 5 and the detector 24 via the mirror 23 is set to about 80 mm.
- Image detected by detector 24 The distance a between the sample 4 and the grazing incidence mirror 5 is adjusted by moving the sample 4 with the moving stage 8 so that it is in focus while observing the image.
- the oblique incidence mirror 3 is moved in the optical axis direction. Note that similar results can be obtained for the illumination by moving the visible light source 21 in the optical axis direction.
- mirrors 22 and 23 are connected to positions 2 2a and 2 a by linear introduction terminals 25 and 26, respectively.
- magnification M is about 100 times
- the distance b between the grazing incidence mirror 5 and the X-ray detector 6 is about 200 mm
- magnification M is about 200 times.
- the X-ray detector 6 is moved so that the distance b between the grazing incidence mirror 15 and the X-ray detector 6 becomes about 400 O mm.
- the sample 4 is moved by the moving stage 8 so that it is in focus.
- the distance a is adjusted, and the oblique incidence mirror 3 for illumination is moved in the optical axis direction by the moving stage 7 so as to obtain optimal illumination.
- the second embodiment since visible light is used in addition to X-rays, handling and observation are easier than when only X-rays are used. In addition, since the measurement is performed using visible light, radiation damage to the sample can be reduced. Further, since the observation with the X-ray is only on the high magnification side, the moving distance of the X-ray detector 6 can be reduced.
- the present invention is capable of various modifications.
- the X-ray detector 6 in observation at a high magnification, the X-ray detector 6 is moved by the vacuum pipe with bellows 10 so that the magnification can be adjusted, but it is necessary to adjust the magnification on the high magnification side.
- the position of the X-ray detector 6 may be fixed by a fixed length pipe without using the bellows pipe 10.
- the oblique incidence mirror for illumination 3 is installed at a position where optimal illumination can be obtained at high magnification observation, and at low magnification observation using visible light, the position of the visible light source 21 is calculated by the equation (1). If the optimal illumination position is set, the adjustment of illumination light is not necessary at low magnification and high magnification, and observation can be performed with a simpler procedure. I can.
- an ultraviolet light source may be used.
- mirrors 22 and 23 use ultraviolet mirrors
- detector 24 uses a detector sensitive to ultraviolet light.
- another X-ray light source (X-ray irradiating means) other than the X-ray source 1 may be installed at the position of the visible light source 21, in which case, a mirror 22 (first X-ray reflecting means), The mirror 23 (second X-ray reflecting means) uses a multilayer mirror for X-rays, and the detector 24 uses a detector (X-ray detecting means) sensitive to X-rays.
- two X-ray images having different magnifications can be obtained without moving the X-ray detector 6 by the bellows-equipped vacuum pipe 10.
- the X-ray source a laser plasma X-ray source or synchrotron radiation may be employed in addition to the gas-puff type plasma X-ray source.
- the illumination optical system is the oblique incidence mirror for illumination 3 having a spheroidal shape using total reflection, but an oblique incidence mirror having a hyperboloid of revolution and a spheroid may be employed.
- the distance between the sample and the grazing incidence mirror and the distance between the grazing incidence mirror and the detector are changed in the X-ray image magnifying apparatus using the grazing incidence mirror as an objective lens.
- the imaging magnification can be changed without replacing the oblique incidence mirror.
- the present invention uses a grazing incidence mirror as the objective lens, so that it is not necessary to illuminate X-rays at a single wavelength and the configuration of the illumination optical system is simplified as compared with the case where a zone plate optical system is used.
- the focal length f does not change even if the X-ray wavelength changes at the same magnification, so there is no need to move the sample and the detector, and the X-ray utilization efficiency is high.
- the wavelength that can be observed is not limited to a single wavelength, and is excellent in that observation can be performed in a wide wavelength range (visible to X-ray).
- the present invention is applicable to a living body observation device, a semiconductor inspection device, and the like (
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003221187A AU2003221187A1 (en) | 2002-03-22 | 2003-03-20 | X-ray image magnifying device |
US10/508,793 US20050226372A1 (en) | 2002-03-22 | 2003-03-20 | X-ray image magnifying device |
EP03712806A EP1492129A4 (en) | 2002-03-22 | 2003-03-20 | RADIOGRAPH ENLARGEMENT DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-80947 | 2002-03-22 | ||
JP2002080947A JP4220170B2 (ja) | 2002-03-22 | 2002-03-22 | X線像拡大装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003081605A1 true WO2003081605A1 (fr) | 2003-10-02 |
Family
ID=28449102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003452 WO2003081605A1 (fr) | 2002-03-22 | 2003-03-20 | Dispositif d'agrandissement d'image de rayons x |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050226372A1 (ja) |
EP (1) | EP1492129A4 (ja) |
JP (1) | JP4220170B2 (ja) |
AU (1) | AU2003221187A1 (ja) |
WO (1) | WO2003081605A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3907121B2 (ja) * | 2004-02-26 | 2007-04-18 | 株式会社リガク | X線分析装置およびx線分析装置用通路装置 |
JP4785177B2 (ja) * | 2005-06-09 | 2011-10-05 | 浜松ホトニクス株式会社 | X線顕微鏡及び顕微鏡 |
CN104515785B (zh) * | 2014-12-22 | 2018-07-27 | 北京师范大学 | 纳米成像系统 |
CN104502375B (zh) * | 2014-12-22 | 2018-07-06 | 北京师范大学 | 准单色光成像系统 |
JP6586778B2 (ja) * | 2015-05-28 | 2019-10-09 | 株式会社ニコン | X線装置および構造物の製造方法 |
JP6632852B2 (ja) * | 2015-10-06 | 2020-01-22 | 浜松ホトニクス株式会社 | X線撮像装置及びx線撮像方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04265900A (ja) * | 1991-02-21 | 1992-09-22 | Nikon Corp | 結像型軟x線顕微鏡装置 |
JPH07243993A (ja) * | 1994-03-04 | 1995-09-19 | Hamamatsu Photonics Kk | 放射線像拡大観察装置 |
JPH09178900A (ja) * | 1995-12-27 | 1997-07-11 | Olympus Optical Co Ltd | X線観察装置 |
JPH09251100A (ja) * | 1996-03-15 | 1997-09-22 | Olympus Optical Co Ltd | 軟x線顕微鏡 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US2759106A (en) * | 1951-05-25 | 1956-08-14 | Wolter Hans | Optical image-forming mirror system providing for grazing incidence of rays |
US3821556A (en) * | 1972-02-15 | 1974-06-28 | Nasa | Three mirror glancing incidence system for x ray telescope |
JPH0631887B2 (ja) * | 1988-04-28 | 1994-04-27 | 株式会社東芝 | X線ミラー及びその製造方法 |
JPH0631888B2 (ja) * | 1988-05-27 | 1994-04-27 | 株式会社東芝 | X線ミラーの製造方法及びその装置 |
JPH0225737A (ja) * | 1988-07-15 | 1990-01-29 | Hitachi Ltd | 表面分析方法および装置 |
JP2883122B2 (ja) * | 1989-10-20 | 1999-04-19 | オリンパス光学工業株式会社 | X線顕微鏡 |
DE4027285A1 (de) * | 1990-08-29 | 1992-03-05 | Zeiss Carl Fa | Roentgenmikroskop |
JPH04328500A (ja) * | 1991-04-26 | 1992-11-17 | Olympus Optical Co Ltd | コンデンサ |
US5432831A (en) * | 1992-09-10 | 1995-07-11 | Olympus Optical Co., Ltd. | Vacuum optical system |
US5434901A (en) * | 1992-12-07 | 1995-07-18 | Olympus Optical Co., Ltd. | Soft X-ray microscope |
US5450463A (en) * | 1992-12-25 | 1995-09-12 | Olympus Optical Co., Ltd. | X-ray microscope |
EP0708970B1 (en) * | 1994-05-11 | 1998-08-12 | University of Colorado | Spherical mirror grazing incidence x-ray optics |
AU5287000A (en) * | 1999-05-24 | 2000-12-12 | Jmar Research, Inc. | Parallel x-ray nanotomography |
US6278764B1 (en) * | 1999-07-22 | 2001-08-21 | The Regents Of The Unviersity Of California | High efficiency replicated x-ray optics and fabrication method |
-
2002
- 2002-03-22 JP JP2002080947A patent/JP4220170B2/ja not_active Expired - Fee Related
-
2003
- 2003-03-20 WO PCT/JP2003/003452 patent/WO2003081605A1/ja active Application Filing
- 2003-03-20 US US10/508,793 patent/US20050226372A1/en not_active Abandoned
- 2003-03-20 EP EP03712806A patent/EP1492129A4/en not_active Withdrawn
- 2003-03-20 AU AU2003221187A patent/AU2003221187A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04265900A (ja) * | 1991-02-21 | 1992-09-22 | Nikon Corp | 結像型軟x線顕微鏡装置 |
JPH07243993A (ja) * | 1994-03-04 | 1995-09-19 | Hamamatsu Photonics Kk | 放射線像拡大観察装置 |
JPH09178900A (ja) * | 1995-12-27 | 1997-07-11 | Olympus Optical Co Ltd | X線観察装置 |
JPH09251100A (ja) * | 1996-03-15 | 1997-09-22 | Olympus Optical Co Ltd | 軟x線顕微鏡 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1492129A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20050226372A1 (en) | 2005-10-13 |
JP4220170B2 (ja) | 2009-02-04 |
EP1492129A4 (en) | 2007-12-05 |
JP2003279693A (ja) | 2003-10-02 |
AU2003221187A1 (en) | 2003-10-08 |
EP1492129A1 (en) | 2004-12-29 |
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