Performance optimization of the neutron-sensitive image intensifier used in neutron imaging

As a non-destructive testing technology,neutron imaging plays an important role in various fields,including material science,nuclear engineering,and fundamental science.An imaging detector with a neutron-sensitive image intensifier has been developed and demonstrated to achieve good spatial resolution and timing resolution.However,the influence of the working voltage on the performance of the neutron-sensitive imaging intensifier has not been studied.To optimize the performance of the neutron-sensitive image intensifier at different voltages,experiments have been performed at the China Spallation Neutron Source(CSNS)neutron beamline.The change in the light yield and imaging quality with different voltages has been acquired.It is shown that the image quality benefits from the high gain of the microchannel plate(MCP)and the high accelerating electric field between the MCP and the screen.Increasing the accelerating electric field is more effective than increasing the gain of MCPs for the improvement of the imaging quality.Increasing the total gain of the MCP stack can be realized more effectively by improving the gain of the standard MCP than that of the n MCP.These results offer a development direction for image intensifiers in the future.

Imaging plate scanners calibration and the attenuation behavior of imaging plate signals

Based on previously reported work, we propose a new method for calibrating image plate(IP) scanners, offering greater flexibility and convenience, which can be extended to the calibration tasks of various scanner models. This method was applied to calibrate the sensitivity of a GE Typhoon FLA 7000 scanner. Additionally, we performed a calibration of the spontaneous signal attenuation behavior for BAS-MS, BAS-SR, and BAS-TR type IPs under the 20±1℃ environmental conditions, and observed significant signal carrier diffusion behavior in BAS-MS IP. The calibration results lay a foundation for further research on the interaction between ultra-short, ultra-intense lasers and matter.

Elimination of the Background Noise of the Decoded Image in Fresnel Zone Plate Scanning Holography

A method of digitally high pass filtering in frequency domain is proposed to eliminate the background noise of the decoded image in Fresnel zone plate scanning holography. The high pass filter is designed as a circular stop, which should be suitable to suppressing the background noise significantly and remain much low frequency information of the object. The principle of high pass filtering is that the Fourier transform of the decoded image is multiplied with the high pass filter. Thus the frequency spectrum of the decoded image without the background noise is achieved. By inverse Fourier transform of the spectrum of the decoded image after multiplying operation, the decoded image without the background noise is obtained. Both of the computer simulations and the experimental results show that the contrast and the signal-to-noise ratio of the decoded image are significantly improved with digital filtering.

Confocal Image 3D Surface Measurement with Optical Fiber Plate

A whole-field 3D surface measurement system for semiconductor wafer inspection is described.The system consists of an optical fiber plate,which can split the light beam into N^2 subbeams to realize the whole-field inspection.A special prism is used to separate the illumination light and signal light.This setup is characterized by high precision,high speed and simple structure.

Silicon Image联手UMC应用90nm制造工艺生产HDMI接收器IP核心

近日．高清晰数字内容安全传输，演示和存储厂商Silicon Image和半导体制造商联华电子UMC宣布双方达成协议．UMC公司将应用90纳米制造工艺生产Silicon Image的高清晰数字多媒体接口（HDMI）接收器知识产权（IP）核心。这项共同协议使Silicon Image与UMC双方的客户都得以使用由Silicon Image授权，通过UMC最领先的主流技术验证的HDMI 1．1接收器核心。

Silicon Image联手UMC生产90nm HDMI接收器IP核

Silicon Image公司和UMC公司（台联电）达成协议，UMC公司将采用90nm工艺生产Silicon Image公司的高清晰数字多媒体接口（HDMI）接收器IP核。HDMI正迅速成为连接HDTV、DVD播放机、机顶盒、数码相机和A／V接收器等高清晰（HD）设备的标准接口。这项共同协议使Silicon Image与UMC双方的客户都得以使用由Silicon Image公司授权，通过UMC公司主流技术验证的HDMI1．1接收器IP核。

Silicon Image推出HDMI和ATA核心IP

Silicon Image公司日前宣布推出可集成到新片上系统(SOC)的高清晰度多媒体接口(HDMI)和串行ATA(SATA)核心IP。Silicon Image已经将其SATALink SATA核心移植至多种90nm和0．13μm芯片制造工艺中，现在又将其PanelLink HDMI核心移植至0．13μm制造工艺，从而使获得许可的客户在他们的片上系统中集成先进的SATA和HDMI功能。

博物馆文创IP形象设计及衍生研究

分析博物馆文创IP形象的发展现状和衍生形式,总结设计要点,探讨线上数字化衍生、线下实体化方式、线下体验活动三种形式,以丰富的内涵、独特的形象和多维度传播方式,丰富博物馆文创IP形象的生命力。

“粤字号”农产品品牌IP形象设计与叙事策略研究

目的本文以叙事理论为指导,针对“粤字号”农业品牌IP形象设计研究,旨在探索新时代下叙事策略在农业品牌IP形象设计中的方法,为我国农业品牌建设提供新的思路。方法首先,概述了叙事理论的基本概念,分析了“粤字号”农业品牌的发展现状和存在的问题;其次,通过品牌叙事的逻辑,探讨了叙事理论在品牌IP形象设计中的应用方法;最后,通过西关香香IP形象元素的设计实践,总结了“粤字号”农业品牌IP形象的叙事策略。结果通过叙事逻辑的分析,在“粤字号”农业品牌的实践中找到了叙事的核心价值,并通过叙事表达和叙事传播完成了叙事的心理认知。结论品牌叙事从品牌文化、品牌形象和品牌传播等方面形成品牌认知的逻辑关系,为“粤字号”农业品牌IP形象设计提供了系统的方法论,对农业品牌IP形象设计的故事进行挖掘,提升消费者对品牌IP形象的体验感和认知度,提高“粤字号”农产品品牌的市场价值,为农业品牌IP设计提供了有价值的参考。

“虚拟IP+场景力”:知音文化传播和武汉城市发展策略——基于四川眉山数字代言人“苏小妹”的启示

数字技术的发展推动了城市信息化应用水平的提高,智慧城市建设应运而生,纷纷推出独具地方特色的数字代言人进行城市宣传,为城市的智慧化构建助力。在民国时期就被誉为“东方芝加哥”的武汉,其地理、经济、政治、文化水平都处于全国前列,在智慧化城市发展的浪潮中,需要积极结合自身情况探索出独树一帜的智慧城市发展路径。武汉市可依托源远流长的知音文化,将深厚的文化内涵融入数字形象代言人的打造中,通过沉浸式场景提升市民文化体验,形成“城市文化+虚拟IP+场景力”的城市文化空间,充分借助新技术、新载体,传播武汉传统文化,促进武汉城市发展。

Nanofabrication of 50 nm zone plates through e-beam lithography with local proximity effect correction for x-ray imaging

High resolution Fresnel zone plates for nanoscale three-dimensional imaging of materials by both soft and hard x-rays are increasingly needed by the broad applications in nanoscience and nanotechnology.When the outmost zone-width is shrinking down to 50 nm or even below,patterning the zone plates with high aspect ratio by electron beam lithography still remains a challenge because of the proximity effect.The uneven charge distribution in the exposed resist is still frequently observed even after standard proximity effect correction(PEC),because of the large variety in the line width.This work develops a new strategy,nicknamed as local proximity effect correction(LPEC),efficiently modifying the deposited energy over the whole zone plate on the top of proximity effect correction.By this way,50 nm zone plates with the aspect ratio from 4:1 up to 15:1 and the duty cycle close to 0.5 have been fabricated.Their imaging capability in soft(1.3 keV)and hard(9 keV)x-ray,respectively,has been demonstrated in Shanghai Synchrotron Radiation Facility(SSRF)with the resolution of 50 nm.The local proximity effect correction developed in this work should also be generally significant for the generation of zone plates with high resolutions beyond 50 nm.

Optimization method of Hadamard coding plate inγ‑ray computational ghost imaging

Owing to the constraints on the fabrication ofγ-ray coding plates with many pixels,few studies have been carried out onγ-ray computational ghost imaging.Thus,the development of coding plates with fewer pixels is essential to achieveγ-ray computational ghost imaging.Based on the regional similarity between Hadamard subcoding plates,this study presents an optimization method to reduce the number of pixels of Hadamard coding plates.First,a moving distance matrix was obtained to describe the regional similarity quantitatively.Second,based on the matrix,we used two ant colony optimization arrangement algorithms to maximize the reuse of pixels in the regional similarity area and obtain new compressed coding plates.With full sampling,these two algorithms improved the pixel utilization of the coding plate,and the compression ratio values were 54.2%and 58.9%,respectively.In addition,three undersampled sequences(the Harr,Russian dolls,and cake-cutting sequences)with different sampling rates were tested and discussed.With different sampling rates,our method reduced the number of pixels of all three sequences,especially for the Russian dolls and cake-cutting sequences.Therefore,our method can reduce the number of pixels,manufacturing cost,and difficulty of the coding plate,which is beneficial for the implementation and application ofγ-ray computational ghost imaging.

“辽西走廊”IP视觉形象设计与文创产品研发研究

以辽西走廊IP文化创意内容为核心,依托数字技术进行创作、生产、传播和服务。文化旅游品牌IP化的综合实力体现包括文创礼品、服务意识、知名度与认知度乃至辐射辽西走廊沿线、整合辽西走廊区域旅游系统,根据游客的需求强化IP品牌意识,在旅游产品中传达出辽西走廊IP文化氛围。

“培育制造名城建设幸福株洲”背景下株洲城市IP形象设计研究

打造IP形象是塑造城市品牌、传播城市理念的有效途径。近年来,“培育制造名城、建设幸福株洲”已成为株洲城市发展的新定位,在此背景下,本研究阐释了城市IP形象的内涵,剖析了株洲城市IP形象的设计主题,并围绕“培育制造名城、建设幸福株洲”理念提出了株洲城市IP形象的设计原则,总结归纳了设计策略。最后,本研究对株洲城市IP形象及其周边衍生产品进行了设计创作,以期为相关理论研究和行业实践提供参考依据。

非物质文化遗产汕尾渔歌IP形象设计开发与应用

汕尾渔歌是广东省汕尾市的国家级非物质文化遗产,也是汕尾城市品牌的重要文化元素之一,近5年来得到不少关注和重视。充分利用当前的媒体传播、设计制作软件、高新科技等客观条件,深入分析汕尾渔歌的文化基因,并进行视觉符号提炼,将汕尾渔歌视作为文化品牌进行视觉创新设计,优化其视觉形象,对推广和传承优秀传统文化具有重要的现实意义。

Counting of alpha particle tracks on imaging plate based on a convolutional neural network

Imaging plates are widely used to detect alpha particles to track information,and the number of alpha particle tracks is affected by the overlapping and fading effects of the track information.In this study,an experiment and a simulation were used to calibrate the efficiency parameter of an imaging plate,which was used to calculate the grayscale.Images were created by using grayscale,which trained the convolutional neural network to count the alpha tracks.The results demonstrated that the trained convolutional neural network can evaluate the alpha track counts based on the source and background images with a wider linear range,which was unaffected by the overlapping effect.The alpha track counts were unaffected by the fading effect within 60 min,where the calibrated formula for the fading effect was analyzed for 132.7 min.The detection efficiency of the trained convolutional neural network for inhomogeneous ^(241)Am sources(2π emission)was 0.6050±0.0399,whereas the efficiency curve of the photo-stimulated luminescence method was lower than that of the trained convolutional neural network.

非遗传承下雷州石狗IP形象的创新设计研究

雷州石狗是广东雷州半岛地区独特的民间艺术,拥有悠久的历史和深厚的文化内涵。然而,在现代社会的发展中,这一宝贵的非物质文化遗产面临着传承困境和市场认可度低的问题。本文将探讨如何在非遗传承的背景下,深入挖掘“雷州石狗”文化并对雷州石狗IP形象进行创新设计,使其更好地适应当代审美和市场需求,从而实现文化传承和产业发展的双赢。

Parallel Image Processing Technology of Surface Detection System

To improve image processing speed and detection precision of a surface detection system on a strip surface,based on the analysis of the characteristics of image data and image processing in detection system on the strip surface,the design of parallel image processing system and the methods of algorithm implementation have been studied. By using field programmable gate array(FPGA) as hardware platform of implementation and considering the characteristic of detection system on the strip surface,a parallel image processing system implemented by using multi IP kernel is designed. According to different computing tasks and the load balancing capability of parallel processing system,the system could set different calculating numbers of nodes to meet the system's demand and save the hardware cost.

基于IP人物下新会非遗的传承与设计实践研究

新会作为五邑地区非遗数量第一的地区,推动其非遗的传播不仅能带动五邑地区文化产业发展,也对中华传统文化传承与发展具有借鉴意义。本文以“神兽守护”为创作主题,以四大神兽为潮玩形象结合新会区非物质文化遗产新会葵艺、新会陈皮炮制技艺、新会鱼灯、新会木版神祃为元素进行潮玩IP设计与衍生品设计。探讨使用创新性的思维和设计,发掘和继承具有深厚底蕴的侨乡非遗文化,推进非遗文化的传承发展。

STRUCTURAL ANALYSIS OF PEKEKK(T/I) USING WAXD, IMAGING PLATES AND SAXS

Structures and crystal form transition of the novel aryl ether ketone polymer containing meta-phenylene linkage: PEKEKK(T/I) were investigated by wide angle X-ray diffraction (WAXD), imaging plates (IPs) and small angle X-ray scattering (SAXS). The energy of activation of the decomposition reaction and degree of crystallinity of PEKEKK(T/I) were determined by WAXD and thermo-gravimetric analysis (TGA), respectively. Results obtained from WAXD and IPs show that crystal forms coexist in the PEKEKK(T/I) samples isothermally cold crystallized in the temperature range from 180'C to 240T? and only form occurs in PEKEKK(TTI) samples isothermally cold crystallized at 2701C. The radius of gyration (Rg), thickness of microregions with electron-density fluctuations (E) and distribution of particle sizes were investigated by SAXS.