{"title":"Inverse Compton scattering for the production of bright x-ray sources (Conference Presentation)","authors":"I. Gadjev","doi":"10.1117/12.2530538","DOIUrl":"https://doi.org/10.1117/12.2530538","url":null,"abstract":"","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117179674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Amoudry, K. Cassou, A. Courjaud, K. Dupraz, Titouan Le Barillec, A. Martens, D. Nutarelli, F. Zomer
{"title":"Optimization of Fabry-Perot optical resonators operated in burst mode for radiation sources-based on Compton scattering (Conference Presentation)","authors":"L. Amoudry, K. Cassou, A. Courjaud, K. Dupraz, Titouan Le Barillec, A. Martens, D. Nutarelli, F. Zomer","doi":"10.1117/12.2530994","DOIUrl":"https://doi.org/10.1117/12.2530994","url":null,"abstract":"","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129511442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"X-ray sources for high throughput and extreme resolutions using liquid MetalJet technology and Tungsten targets (Conference Presentation)","authors":"A. Adibhatla, P. Takman, E. Espes, U. Lundström","doi":"10.1117/12.2528523","DOIUrl":"https://doi.org/10.1117/12.2528523","url":null,"abstract":"","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131218348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laser plasma sources of soft X-rays and extreme ultraviolet (EUV) have been developed for application in various fields of science and technology. The sources are based on a gas puff target irradiated with a nanosecond laser pulse. The targets are created using an electromagnetic valve system equipped with a double-nozzle. The valve system, which is supplied with two different gases, produces a double-stream gas puff target which consists of an elongated stream of high-Z gas surrounded by a stream of low-Z gas. The double-stream gas puff target approach secures high conversion efficiency of laser energy into soft X-ray and EUV energy without degradation of the nozzle. The targets are irradiated with laser pulses produced by commercial Nd:YAG lasers (EKSPLA) with a duration of 1 ns to 10 ns, energy in the pulse from 0.5 J to 10 J with a repetition of 10 Hz. The sources have been applied in various fields, including metrology, processing of materials, nanoimaging, radiography and tomography, photoionized plasma studies, and radiobiology. In this paper the recent results on application of the sources in X-ray absorption spectroscopy and optical coherence tomography (OCT) are presented. The use of the source in laboratory systems for the near-edge X-ray absorption fine structure (NEXAFS) spectroscopy is demonstrated. The NEXAFS system was applied for 2-D elemental mapping of EUV-modified polymer samples. A single-shot exposure NEXAFS spectroscopy is presented. Application of the source in X-ray optical coherence tomography (XCT) has been also demonstrated. The preliminary results on XCT imaging of Mo/Si multilayers with 2 nm axial resolution, using broad-band soft X-ray emission, are presented.
{"title":"Recent advances in development and application of laser plasma x-ray sources based on a gas puff target (Conference Presentation)","authors":"H. Fiedorowicz, P. Wachulak, A. Bartnik","doi":"10.1117/12.2529025","DOIUrl":"https://doi.org/10.1117/12.2529025","url":null,"abstract":"Laser plasma sources of soft X-rays and extreme ultraviolet (EUV) have been developed for application in various fields of science and technology. The sources are based on a gas puff target irradiated with a nanosecond laser pulse. The targets are created using an electromagnetic valve system equipped with a double-nozzle. The valve system, which is supplied with two different gases, produces a double-stream gas puff target which consists of an elongated stream of high-Z gas surrounded by a stream of low-Z gas. The double-stream gas puff target approach secures high conversion efficiency of laser energy into soft X-ray and EUV energy without degradation of the nozzle. The targets are irradiated with laser pulses produced by commercial Nd:YAG lasers (EKSPLA) with a duration of 1 ns to 10 ns, energy in the pulse from 0.5 J to 10 J with a repetition of 10 Hz. The sources have been applied in various fields, including metrology, processing of materials, nanoimaging, radiography and tomography, photoionized plasma studies, and radiobiology. In this paper the recent results on application of the sources in X-ray absorption spectroscopy and optical coherence tomography (OCT) are presented. The use of the source in laboratory systems for the near-edge X-ray absorption fine structure (NEXAFS) spectroscopy is demonstrated. The NEXAFS system was applied for 2-D elemental mapping of EUV-modified polymer samples. A single-shot exposure NEXAFS spectroscopy is presented. Application of the source in X-ray optical coherence tomography (XCT) has been also demonstrated. The preliminary results on XCT imaging of Mo/Si multilayers with 2 nm axial resolution, using broad-band soft X-ray emission, are presented.","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117070740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W. Yun, B. Hansen, A. Lyon, Benjamin Stripe, S. H. Lau, V. Semenov
{"title":"Next-generation high-brightness x-ray sources with tunable x-ray spectrum (Conference Presentation)","authors":"W. Yun, B. Hansen, A. Lyon, Benjamin Stripe, S. H. Lau, V. Semenov","doi":"10.1117/12.2530366","DOIUrl":"https://doi.org/10.1117/12.2530366","url":null,"abstract":"","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125934548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The short-wavelength FEL is a revolutionary instrument, which for the first time has permitted the structure of atomic and molecular matter to be interrogated at the spatial and temporal scales relevant to electron rearrangement – A and fsec, respectively. This frontier tool has produced a paradigm shift in imaging, but suffers from limited access, as the $1B-class instruments needed for both photon science and exploring the attosecond world of the FEL are located at a few national labs worldwide. Due to this expense, access to coherent X-rays for iterative experimentation by the optimal width of the photon science community is suppressed. Further, R&D aimed at cutting edge FEL physics and in the US, has extremely limited resources, thus dimming the prospects for a new, approach to FELs in which the cost and scale of the machine is consistent with university financial and space budgets. The scientific and technological environment of the free-electron laser and related next generation instruments is complex, embracing a wide range of cutting edge fields which are undergoing rapid maturation. This infrastructure is intended to address both scientific and educational roadblocks in the current FEL and photon science communities, by pursuing a vision of an FEL that is an extension of current techniques, pushed to the limits of current performance. This vision entails an approach based on progress in three areas: very high brightness electron beam production; compact, high gradient acceleration; advanced beam manipulations aimed a current enhancement without phase space dilution; and new techniques in realizing very short period undulators. UCLA has played a lead role in high brightness beam production for several decades. It has recently, with support of the NSF through the Center for Bright Beams (CBB), brought a new concept towards fruition, a cryogenic RF photoinjector capable of operations at very high field, and achieving an order of magnitude improvement in electron beam brightness. This beam can be accelerated to GeV energies with the same technical approach, recently shown in proof-of-principle experiments by a Stanford and UCLA. These beams can, further, be compressed by optical bunching techniques, as has been studie successfully at SLAC and UCLA in recent years. Finally, one can utilize a new generation of undulators with periodicity in the mm-scale, exploiting MEMS-based research in this area. In combination, this approach may produce an Angstrom X-ray FEL with fluxes up to ~5% of the LCLS, yet costing an estimated $20M and occupying a footprint of a few tens of meters. This new class of coherent light source will be exploited UCLA and collaborating scientists to explore a new model for both advanced FEL and photon science experimentation. UCLA and its direct collaborators in universities, national labs worldwide, and industry are leaders in these fields, the expertise needed to push thiss state-of-the-art concept is available.
{"title":"Towards an ultra-compact x-ray free-electron laser (Conference Presentation)","authors":"J. Rosenzweig","doi":"10.1117/12.2531143","DOIUrl":"https://doi.org/10.1117/12.2531143","url":null,"abstract":"The short-wavelength FEL is a revolutionary instrument, which for the first time has permitted the\u0000structure of atomic and molecular matter to be interrogated at the spatial and temporal scales relevant\u0000to electron rearrangement – A and fsec, respectively. This frontier tool has produced a paradigm shift\u0000in imaging, but suffers from limited access, as the $1B-class instruments needed for both photon science and exploring the attosecond world of the FEL are located at a few national labs worldwide. Due to this expense, access to coherent X-rays for iterative experimentation by the optimal width of the photon science community is suppressed. Further, R&D aimed at cutting edge FEL physics and in the US, has extremely limited resources, thus dimming the prospects for a new, approach to FELs in which the cost and scale of the machine is consistent with university financial and space budgets. \u0000The scientific and technological environment of the free-electron laser and related next generation instruments is complex, embracing a wide range of cutting edge fields which are undergoing rapid maturation. This infrastructure is intended to address both scientific and educational roadblocks in the current FEL and photon science communities, by pursuing a vision of an FEL that is an extension of current techniques, pushed to the limits of current performance. This vision entails an approach based on progress in three areas: very high brightness electron beam production; compact, high gradient acceleration; advanced beam manipulations aimed a current enhancement without phase space dilution; and new techniques in realizing very short period undulators. UCLA has played a lead role in high brightness beam production for several decades. It has recently, with support of the NSF through the Center for Bright Beams (CBB), brought a new concept towards fruition, a cryogenic RF photoinjector capable of operations at very high field, and achieving an order of magnitude improvement in electron beam brightness. This beam can be accelerated to GeV energies with the same technical approach, recently shown in proof-of-principle experiments by a Stanford and UCLA. These beams can, further, be compressed by optical bunching techniques, as has been studie successfully at SLAC and UCLA in recent years. Finally, one can utilize a new generation of undulators with periodicity in the mm-scale, exploiting MEMS-based research in this area. In combination, this approach may produce an Angstrom X-ray FEL with fluxes up to ~5% of the LCLS, yet costing an estimated $20M and occupying a footprint of a few tens of meters. This new class of coherent light source will be exploited UCLA and collaborating scientists to explore a new model for both advanced FEL and photon science experimentation. UCLA and its direct collaborators in universities, national labs worldwide, and industry are leaders in these fields, the expertise needed to push thiss state-of-the-art concept is available.","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132911119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ThomX is a new generation Compact Compton Source. It is under installation in the Laboratory of Linear Accelerator at Orsay. The first beams is expected at the end of 2019. The aim of ThomX is to demonstrate the feasibility of an intense and Compact (lab-size) X-ray Source based on the Compton Scattering. The performances are mostly driven by the laser optical system which is above the state of the art of the stored laser power. Firstly, this article present the machine status. Then, the issues and limits of the laser system are discussed. Finally, the expected performances for the next years and the possible experiments that can be made with this new machine are detailed.
{"title":"ThomX project -- a future intense lab-size Compton x-ray source: status and expected performances (Conference Presentation)","authors":"K. Dupraz, L. Amoudry","doi":"10.1117/12.2530995","DOIUrl":"https://doi.org/10.1117/12.2530995","url":null,"abstract":"ThomX is a new generation Compact Compton Source. It is under installation in the Laboratory of Linear Accelerator at Orsay. The first beams is expected at the end of 2019. The aim of ThomX is to demonstrate the feasibility of an intense and Compact (lab-size) X-ray Source based on the Compton Scattering. The performances are mostly driven by the laser optical system which is above the state of the art of the stored laser power. Firstly, this article present the machine status. Then, the issues and limits of the laser system are discussed. Finally, the expected performances for the next years and the possible experiments that can be made with this new machine are detailed.","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114494102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Spiga, B. Salmaso, M. Bavdaz, C. Pelliciari, S. Basso, V. Burwitz, I. Ferreira, M. Ghigo, E. Giro, G. Pareschi, M. Rio, G. Tagliaferri, G. Vecchi, E. Wille
The construction of BEaTriX, the Beam Expander Testing X-ray facility, is underway at INAF-OAB (Osservatorio Astronomico di Brera). This laboratory-based X-ray source was designed to generate a broad (170 mm x 60 mm), uniform, and collimated X-ray beam, with a residual divergence of 1.5 arcsec HEW at either 1.49 keV and 4.51 keV. The main scientific driver for BEaTriX is represented by the opportunity to routinely calibrate the modular elements of the ATHENA (ESA) X-ray telescope, based on the silicon pore optics (SPO) technology. Nevertheless, the application domain of BEaTriX is potentially much wider (e.g., X-ray tomography). BEaTriX comprises a microfocus source of X-rays, followed by an optical chain including a collimating mirror, crystal monochromators, and an asymmetric beam expander. The final beam collimation and homogeneity relies on the optical quality of the optical components (X-ray source dimension, mirror polishing, crystal lattice regularity) and on their mutual alignment. In order to determine the most critical parameters, focus the development efforts, and establish specifications, a set of optical simulations has been built. Our paper describes the simulation tool we developed to this specific aim, and discusses the results achieved in terms of manufacturing and alignment tolerances.
BEaTriX，波束扩展测试x射线设备，正在INAF-OAB(西班牙天文天文台)进行建设。该实验室x射线源设计用于在1.49 keV和4.51 keV下产生宽(170 mm x 60 mm)、均匀和准直的x射线束，剩余散度为1.5弧秒HEW。BEaTriX的主要科学驱动力是基于硅孔光学(SPO)技术对ATHENA (ESA) x射线望远镜的模块元件进行常规校准。然而，BEaTriX的应用领域可能更广泛(例如，x射线断层扫描)。BEaTriX包括一个微聚焦的x射线源，随后是一个光学链，包括一个准直镜、晶体单色器和一个不对称光束扩展器。最终的光束准直和均匀性取决于光学元件的光学质量(x射线源尺寸、镜面抛光、晶格规则性)和它们的相互对准。为了确定最关键的参数，集中开发工作，并建立规范，建立了一套光学模拟。本文描述了我们为此特定目标开发的仿真工具，并讨论了在制造和对准公差方面取得的结果。
{"title":"Optical simulations for the laboratory-based expanded and collimated x-ray beam facility BEaTriX","authors":"D. Spiga, B. Salmaso, M. Bavdaz, C. Pelliciari, S. Basso, V. Burwitz, I. Ferreira, M. Ghigo, E. Giro, G. Pareschi, M. Rio, G. Tagliaferri, G. Vecchi, E. Wille","doi":"10.1117/12.2530066","DOIUrl":"https://doi.org/10.1117/12.2530066","url":null,"abstract":"The construction of BEaTriX, the Beam Expander Testing X-ray facility, is underway at INAF-OAB (Osservatorio Astronomico di Brera). This laboratory-based X-ray source was designed to generate a broad (170 mm x 60 mm), uniform, and collimated X-ray beam, with a residual divergence of 1.5 arcsec HEW at either 1.49 keV and 4.51 keV. The main scientific driver for BEaTriX is represented by the opportunity to routinely calibrate the modular elements of the ATHENA (ESA) X-ray telescope, based on the silicon pore optics (SPO) technology. Nevertheless, the application domain of BEaTriX is potentially much wider (e.g., X-ray tomography). BEaTriX comprises a microfocus source of X-rays, followed by an optical chain including a collimating mirror, crystal monochromators, and an asymmetric beam expander. The final beam collimation and homogeneity relies on the optical quality of the optical components (X-ray source dimension, mirror polishing, crystal lattice regularity) and on their mutual alignment. In order to determine the most critical parameters, focus the development efforts, and establish specifications, a set of optical simulations has been built. Our paper describes the simulation tool we developed to this specific aim, and discusses the results achieved in terms of manufacturing and alignment tolerances.","PeriodicalId":311385,"journal":{"name":"Advances in Laboratory-based X-Ray Sources, Optics, and Applications VII","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128216315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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