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Garmatina AA, Asadchikov VE, Buzmakov AV, Dyachkova IG, Dymshits YM, Baranov AI, Myasnikov DV, Minaev NV, Gordienko VM. Microfocus Source of Characteristic X-Rays for Phase-Contrast Imaging Based on a Femtosecond Fiber Laser. CRYSTALLOGR REP+ 2022. [DOI: 10.1134/s1063774522060074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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2
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Bai XJ, Yan YH, Lei HY, Sun FZ, Wang TZ, Zhu CQ, Tan JH, Hu G, Li YF, Ma JL, Liao GQ, Zhang Z, Hu HS, Li YT. Two-dimensional monitoring of a laser-solid x-ray source spot via penumbral coded aperture imaging technique. Rev Sci Instrum 2022; 93:043104. [PMID: 35489950 DOI: 10.1063/5.0082555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Abstract
The uncertainties of spot size and position need to be clarified for x-ray sources as they can affect the detecting precision of the x-ray probe beam in applications such as radiography. In particular, for laser-driven x-ray sources, they would be more significant as they influence the inevitable fluctuation of the driving laser pulses. Here, we have employed the penumberal coded aperture imaging technique to diagnose the two-dimensional spatial distribution of an x-ray emission source spot generated from a Cu solid target irradiated by an intense laser pulse. Taking advantage of the high detection efficiency and high spatial resolution of this technique, the x-ray source spot is characterized with a relative error of ∼5% in the full width at half maximum of the intensity profile in a single-shot mode for general laser parameters, which makes it possible to reveal the information of the unfixed spot size and position precisely. Our results show the necessity and feasibility of monitoring the spot of these novel laser-driven x-ray sources via the penumbral coded aperture imaging technique.
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Affiliation(s)
- Xue-Jie Bai
- Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yi-Hong Yan
- Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hong-Yi Lei
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Fang-Zheng Sun
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Tian-Ze Wang
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Chang-Qing Zhu
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Jun-Hao Tan
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Guang Hu
- Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yan-Fei Li
- Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jing-Long Ma
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Guo-Qian Liao
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Zhe Zhang
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Hua-Si Hu
- Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yu-Tong Li
- National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
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Barkauskas V, Plukis A. Prediction of the irradiation doses from ultrashort laser-solid interactions using different temperature scalings at moderate laser intensities. J Radiol Prot 2022; 42:011501. [PMID: 34929682 DOI: 10.1088/1361-6498/ac44fb] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
The ionising radiation created by high intensity and high repetition rate lasers can cause significant radiological hazard. Earlier defined electron temperature scalings are used for dose characterisation and prediction using Monte Carlo modelling. Dosimetric implications of different electron temperature scalings are investigated and the resulting equivalent doses are compared. It was found that scaling defined by Beget al(1997Phys. Plasmas4447-57) predicts the highest electron temperatures for given intensities, and subsequently the highest doses. The atomic number of the target, x-ray generation efficiency and interaction volume are the other parameters necessary for the dose evaluation. The set of these operational parameters should be sufficient to characterise radiological characteristics of ultrashort laser pulse based x-ray generators and evaluate radiological hazards of the laser processing facilities.
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Affiliation(s)
- V Barkauskas
- Center for Physical Sciences and Technology, Savanoriu ave. 231, Vilnius, Lithuania
| | - A Plukis
- Center for Physical Sciences and Technology, Savanoriu ave. 231, Vilnius, Lithuania
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Martín L, Benlliure J, Cortina-Gil D, Haruna A, Ruiz C. Validation of a laser driven plasma X-ray microfocus source for high resolution radiography imaging. Phys Med 2021; 82:163-170. [PMID: 33640836 DOI: 10.1016/j.ejmp.2020.12.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 11/04/2020] [Accepted: 12/31/2020] [Indexed: 11/19/2022] Open
Abstract
Hard X-ray radiation with high brightness and high fluxes is nowadays available on the fourth generation of synchrotrons and X-FELs, but the large size and complexity of these sources makes its use difficult for widespread applications. New table top X-ray sources driven by ultrashort high power lasers offer a compelling route to expand the availability of hard X-ray sources. They can be used for advanced imaging techniques, due to its small source size and spatial coherence. We present in this paper the validation of a compact laser-driven X-ray microfocus source for high-resolution radiography imaging. This novel device was built at the Laser Laboratory for Acceleration and Applications (L2A2) at the University of Santiago de Compostela. This paper describes the laser-plasma X-ray source with improved stability and characterize some of its properties. We demonstrate the high-contrast and resolution of the images obtained with this source by using masks with well known geometries, and detailed analysis by using the modulation transfer function. Finally, we discuss the properties of this source in comparison to other compact microfocus X-ray sources.
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Affiliation(s)
- L Martín
- IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
| | - J Benlliure
- IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - D Cortina-Gil
- IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - A Haruna
- IGFAE, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - C Ruiz
- Instituto de Física Fundamental y Matemáticas, Universidad de Salamanca, Spain
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Koç A, Hauf C, Woerner M, von Grafensteın L, Ueberschaer D, Bock M, Griebner U, Elsaesser T. Compact high-flux hard X-ray source driven by femtosecond mid-infrared pulses at a 1 kHz repetition rate. Opt Lett 2021; 46:210-213. [PMID: 33448990 DOI: 10.1364/ol.409522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
A novel, to the best of our knowledge, table-top hard X-ray source driven by femtosecond mid-infrared pulses provides 8 keV pulses at a 1 kHz repetition rate with an unprecedented flux of up to 1.5×1012 X-ray photons/s. Sub-100 fs pulses at a center wavelength of 5 µm and multi-millijoule energy are generated in a four-stage optical parametric chirped-pulse amplifier and focused onto a thin Cu tape target. Electrons are extracted from the target and accelerated in a vacuum up to 100 keV kinetic energy during the optical cycle; the electrons generate a highly stable K α photon flux from the target in a transmission geometry.
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Gambari M, Clady R, Stolidi A, Utéza O, Sentis M, Ferré A. Exploring phase contrast imaging with a laser-based K α x-ray source up to relativistic laser intensity. Sci Rep 2020; 10:6766. [PMID: 32317682 PMCID: PMC7174335 DOI: 10.1038/s41598-020-63614-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/01/2020] [Indexed: 02/04/2023] Open
Abstract
This study explores the ability of a hard Kα x-ray source (17.48 keV) produced by a 10 TW class laser system operated at high temporal contrast ratio and high repetition rate for phase contrast imaging. For demonstration, a parametric study based on a known object (PET films) shows clear evidence of feasibility of phase contrast imaging over a large range of laser intensity on target (from ~1017 W/cm2 to 7.0 × 1018 W/cm2). To highlight this result, a comparison of raw phase contrast and retrieved phase images of a biological object (a wasp) is done at different laser intensities below the relativistic intensity regime and up to 1.3 × 1019 W/cm2. This brings out attractive imaging strategies by selecting suitable laser intensity for optimizing either high spatial resolution and high quality of image or short acquisition time.
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Affiliation(s)
- M Gambari
- Aix Marseille Université, CNRS, LP3, 13288, Marseille, France.
| | - R Clady
- Aix Marseille Université, CNRS, LP3, 13288, Marseille, France
| | - A Stolidi
- CEA, LIST, Department of Imaging and Simulation for Non-Destructive Testing, F-91191, Gif-sur-Yvette, France
| | - O Utéza
- Aix Marseille Université, CNRS, LP3, 13288, Marseille, France
| | - M Sentis
- Aix Marseille Université, CNRS, LP3, 13288, Marseille, France
| | - A Ferré
- Aix Marseille Université, CNRS, LP3, 13288, Marseille, France
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Azamoum Y, Tcheremiskine V, Clady R, Ferré A, Charmasson L, Utéza O, Sentis M. Impact of the pulse contrast ratio on molybdenum K α generation by ultrahigh intensity femtosecond laser solid interaction. Sci Rep 2018; 8:4119. [PMID: 29515179 PMCID: PMC5841281 DOI: 10.1038/s41598-018-22487-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 02/23/2018] [Indexed: 11/15/2022] Open
Abstract
We present an extended experimental study of the absolute yield of Kα x-ray source (17.48 keV) produced by interaction of an ultrahigh intensity femtosecond laser with solid Mo target for temporal contrast ratios in the range of 1.7 × 107-3.3 × 109 and on three decades of intensity 1016-1019 W/cm². We demonstrate that for intensity I ≥ 2 × 1018 W/cm² Kα x-ray emission is independent of the value of contrast ratio. In addition, no saturation of the Kα photon number is measured and a value of ~2 × 1010 photons/sr/s is obtained at 10 Hz and I ~1019 W/cm². Furthermore, Kα energy conversion efficiency reaches the same high plateau equal to ~2 × 10-4 at I = 1019 W/cm² for all the studied contrast ratios. This original result suggests that relativistic J × B heating becomes dominant in these operating conditions which is supposed to be insensitive to the electron density gradient scale length L/λ. Finally, an additional experimental study performed by changing the angle of incidence of the laser beam onto the solid target highlights a clear signature of the interplay between collisionless absorption mechanisms depending on the contrast ratio and intensity.
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Affiliation(s)
- Y Azamoum
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France.
| | - V Tcheremiskine
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
| | - R Clady
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
| | - A Ferré
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
| | - L Charmasson
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
| | - O Utéza
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
| | - M Sentis
- Aix Marseille Université, CNRS, LP3 UMR 7341, 13288, Marseille, France
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Huang K, Li YF, Li DZ, Chen LM, Tao MZ, Ma Y, Zhao JR, Li MH, Chen M, Mirzaie M, Hafz N, Sokollik T, Sheng ZM, Zhang J. Resonantly Enhanced Betatron Hard X-rays from Ionization Injected Electrons in a Laser Plasma Accelerator. Sci Rep 2016; 6:27633. [PMID: 27273170 PMCID: PMC4917722 DOI: 10.1038/srep27633] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 05/23/2016] [Indexed: 11/09/2022] Open
Abstract
Ultrafast betatron x-ray emission from electron oscillations in laser wakefield acceleration (LWFA) has been widely investigated as a promising source. Betatron x-rays are usually produced via self-injected electron beams, which are not controllable and are not optimized for x-ray yields. Here, we present a new method for bright hard x-ray emission via ionization injection from the K-shell electrons of nitrogen into the accelerating bucket. A total photon yield of 8 × 10(8)/shot and 10(8 )photons with energy greater than 110 keV is obtained. The yield is 10 times higher than that achieved with self-injection mode in helium under similar laser parameters. The simulation suggests that ionization-injected electrons are quickly accelerated to the driving laser region and are subsequently driven into betatron resonance. The present scheme enables the single-stage betatron radiation from LWFA to be extended to bright γ-ray radiation, which is beyond the capability of 3(rd) generation synchrotrons.
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Affiliation(s)
- K Huang
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Y F Li
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - D Z Li
- Institute of High Energy Physics, CAS, Beijing 100049, China
| | - L M Chen
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China.,Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China
| | - M Z Tao
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Y Ma
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - J R Zhao
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - M H Li
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
| | - M Chen
- Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - M Mirzaie
- Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - N Hafz
- Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - T Sokollik
- Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Z M Sheng
- Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.,SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom
| | - J Zhang
- Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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