Time resolved x-ray image of laser plasma interactions using a dilation framing camera

Fu, Wenyong; Cai, Houzhi; Wang, Dong; Lei, Yunfei; Liu, Jinyuan

doi:10.1016/j.ijleo.2019.04.093

Cited by 10 publications

(5 citation statements)

References 11 publications

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“…The temporal resolution of the camera is characterized by short X-ray pulses produced by a laser beam focused on a flat iron target. The fringe raw images are obtained, and the experimental results show that the temporal resolution of the camera is better than 10 ps [ 4 ]. The Rohr J dual-source scanner is interested in the pathological type and clinical distance of severe pneumonia in children.…”

Section: Introductionmentioning

confidence: 99%

Based on the Auxiliary Effect of X-Ray in the Treatment of Severe Pneumonia in Children with Arterial and Venous Blood Gas

Guo

Zhang

2022

Journal of Healthcare Engineering

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Pediatric severe pneumonia clinical is a conceptual term for the diagnosis and treatment of pediatric clinical diseases. At present, domestic and foreign standards for clinical diagnosis of severe pneumonia, which is a childhood disease, are still inconsistent. At present, the first book of the main pediatric medical textbook in the society interprets the clinical definition of severe pneumonia in children as follows: severe pneumonia refers to pulmonary function in heart failure or other comorbidities in other important organs except the lung. This article is based on X-ray medical film and television examinations, through the analysis of arterial and venous blood gas in children with severe pneumonia to play a certain role in adjuvant therapy for children with pneumonia. Prospective clinical studies have found significant changes in the function of auxiliary coagulation and blood fibrinolysis indicators in patients with severe pneumonia in late childhood. The obvious difference between the pretreatment and the late-stage treatment for 1 week and the direct influence on the blood gas quantitative analysis and liver function of advanced patients provide a scientific basis for the diagnosis of typical advanced childhood severe pneumonia patients with adjuvant anticoagulant therapy. The data analysis of the clinical laboratory found that the blood coagulation and fibrinolysis functions of the typical patients with severe pneumonia in the typical late stage of childhood were significantly activated, and the anticoagulant antibody substances were significantly reduced, fibrinolytic coagulation inhibitors and anticoagulants are significantly increased, fibrinolytic activators are significantly reduced, and the body is in a procoagulant state for a long time. Adjuvant anticoagulation therapy through quantitative analysis of blood gas in patients can not only effectively increase the success rate of early treatment of typical late-stage severe pneumonia in children by 64.28% but also significantly reduce the inflammatory coagulation indexes of patients with late-stage severe pneumonia in children. The functions of coagulation, anticoagulation, and coagulation fibrinolysis have been significantly restored. The advantages of X-ray-based adjuvant treatment of severe pneumonia in children with arteriovenous blood gas are good contrast, clear imaging, and clear development of fine lesions or thick parts, and objective records are kept for comparison during review and consultation and discussion. The disadvantage is that the operation is more complicated, and it is not convenient to observe the activity function of the organ.

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Section: Introductionmentioning

confidence: 99%

Based on the Auxiliary Effect of X-Ray in the Treatment of Severe Pneumonia in Children with Arterial and Venous Blood Gas

Guo

Zhang

2022

Journal of Healthcare Engineering

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“…The sample tube was placed in the vacuum chamber. Furthermore, only its static spatial resolution was required to be measured because the dynamic performance of the reticle only relied on the timing performance of the MCP traveling wave gated reticle unit equipped in the later stage [ 25 , 26 , 27 , 28 ]. Therefore, only the ultraviolet lamp was used as the light source during the test.…”

Section: Test Results and Analysismentioning

confidence: 99%

Design and Experimental Study of a Large Beam Waist Streak Tube in an ICF Experiment

Cai

Deng

Niu

et al. 2023

Sensors

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In order to realize in situ multi-frame framing, this paper designed and developed a large-waist framing converter tube. The size ratio between the waist and the object was about 1.16:1. The subsequent test results showed that the static spatial resolution of the tube could reach 10 lp/mm (@ 72.5%) under the premise of this adjustment, and the transverse magnification could reach 2.9. Once the MCP (Micro Channel Plate) traveling wave gating unit is equipped at the output end, it is expected to promote the further development of in situ multi-frame framing technology.

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“…In this paper, a MCP-PMT detector is presented to measure the ultrashort UV laser pulse. To make the experiment easier our standard pulse dilation framing tube is modified by removing the phosphor screen and coupling with a strip line electron collector [12], [14].…”

Section: First Proposed the Technique Formentioning

confidence: 99%

“…The best temporal resolutions were obtained about 110 ps, 450 ps with a smaller and larger active area MCP-PMTs, respectively [9], [10]. In order to improve temporal resolution further, a pulse dilation technique has been used in the fast detectors [11]- [14]. Prosser…”

Section: Introductionmentioning

confidence: 99%

Development of an Ultra-Fast Photomultiplier Tube With Pulse-Dilation Technology

Huang

Wang

et al. 2020

IEEE Access

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A pulse dilation photomultiplier tube (PD-PMT) has been developed. The photoelectrons energy is modulated by a time-dependent electric field between photocathode and ground mesh. Then, the photoelectron pulse is dilated as it transits in a relatively long drift region from mesh to microchannel plate (MCP). The dilated electron pulse is gained by the MCP and then detected by the output collector. Because the temporal width is magnified, the temporal resolution of the photomultiplier tube is better than that of the output collector alone. The result shows that the temporal resolution of the detector is improved to be 25 ps by using pulse-dilation technology, which is much better than 300 ps temporal resolution while without pulse-dilation. The ramp electrical pulse dilates the electron signal to improve the temporal response by about 10 times. INDEX TERMS UV detector, pulse dilation photomultiplier tube, magnetic lens, temporal resolution, stretching ratio.

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Time resolved x-ray image of laser plasma interactions using a dilation framing camera

Cited by 10 publications

References 11 publications

Based on the Auxiliary Effect of X-Ray in the Treatment of Severe Pneumonia in Children with Arterial and Venous Blood Gas

Based on the Auxiliary Effect of X-Ray in the Treatment of Severe Pneumonia in Children with Arterial and Venous Blood Gas

Design and Experimental Study of a Large Beam Waist Streak Tube in an ICF Experiment

Development of an Ultra-Fast Photomultiplier Tube With Pulse-Dilation Technology

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