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![眾星聯(lián)恒自主品牌—桌面超快X射線診斷裝置FemtoX-II]()
眾星聯(lián)恒自主品牌—桌面超快X射線診斷裝置FemtoX-II
激光等離子體脈沖式超快X射線輻射源經(jīng)過(guò)近二十年的發(fā)展，已經(jīng)在眾多國(guó)際實(shí)驗(yàn)室具有較為廣泛的應(yīng)用，并展現(xiàn)出了超微、超亮、高信噪比和高穩(wěn)定性的特點(diǎn)。在物質(zhì)超快過(guò)程研究、精細(xì)分辨成像等方面具有重要的應(yīng)用價(jià)值，加上其裝置的低成本優(yōu)勢(shì)，已經(jīng)成為同步輻射光源在超快領(lǐng)域的有效補(bǔ)充。使用桌面飛秒激光器與特殊設(shè)計(jì)的靶室，我們將脈寬小于100飛秒（fs）的桌面超快X射線脈沖——FemtoX-II帶進(jìn)了中小型實(shí)驗(yàn)室。同時(shí)
2020-12-01
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![NSLS-II量子增強(qiáng)型x射線顯微鏡——X射線鬼成像與顯微技術(shù)的結(jié)合]()
NSLS-II量子增強(qiáng)型x射線顯微鏡——X射線鬼成像與顯微技術(shù)的結(jié)合
“鬼成像”。在這種研究方法中，科學(xué)家們將一束x射線(由粗的粉紅色線表示)分成兩束糾纏的光子束(細(xì)的粉紅色線)。其中只有一束能通過(guò)樣品(用清晰的圓圈表示)，但兩束都能收集信息。通過(guò)分離光束，研究樣品只用受到小劑量x射線的輻射。美國(guó)能源部(DOE)布魯克海文國(guó)家實(shí)驗(yàn)室(BNL)的科學(xué)家們?cè)趪?guó)家同步加速器光源II (NSLS-II)上設(shè)計(jì)了一個(gè)量子增強(qiáng)型X射線顯微鏡。這個(gè)顯微鏡由美國(guó)能源部科學(xué)辦公室的生
2020-11-30
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![NTT-AT- 寬帶、極紫外透射光柵及其應(yīng)用]()
NTT-AT- 寬帶、極紫外透射光柵及其應(yīng)用
效率均勻的寬帶EUV透射光柵最初是為像光譜學(xué)、光束分束和光束監(jiān)測(cè)這樣的高次諧波應(yīng)用而開(kāi)發(fā)的。這種通過(guò)電子束光刻和干法蝕刻制造的自支撐透射光柵能構(gòu)造出結(jié)構(gòu)緊湊、易于校準(zhǔn)的EUV光譜儀。另外，這種光柵非常容易根據(jù)客戶的要求定制參數(shù)，比如柵線數(shù)量，目標(biāo)波長(zhǎng)和占空比。對(duì)于許多科學(xué)和高科技領(lǐng)域來(lái)說(shuō)，EUV光源都是極具吸引力的。高次諧波是用于阿秒科學(xué)、內(nèi)殼層電子動(dòng)力學(xué)測(cè)量和角分辨光電子能譜(ARPES)實(shí)驗(yàn)的
2020-11-20
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![NTT-AT X射線菲涅爾波帶片加工技術(shù)及在顯微成像技術(shù)中的應(yīng)用]()
NTT-AT X射線菲涅爾波帶片加工技術(shù)及在顯微成像技術(shù)中的應(yīng)用
在X射線顯微成像研究領(lǐng)域中，隨著科研人員孜孜不倦的創(chuàng)新追求，以及各種成像方法的交叉和迭代，成像方法和手段被細(xì)分為了很多的子類。目前主流的X射線顯微成像方法主要有：全場(chǎng)透視顯微（TXM）、掃描透視顯微（STXM）、相干衍射成像（X-ray CDI）、X射線熒光顯微（XFM）、X射線光譜顯微（XSM）、X射線光電子（能譜）顯微（XPEEM）等。此外，基于這些方法論的交叉借鑒和拓展，結(jié)合同步輻射光源的高
2020-10-09 unistar
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![跨學(xué)科合作！X射線相襯顯微技術(shù)為破解新冠病毒感染機(jī)制提供新思路]()
跨學(xué)科合作！X射線相襯顯微技術(shù)為破解新冠病毒感染機(jī)制提供新思路
近日，由哥廷根大學(xué)（University of G?ttingen）的物理學(xué)家Tim Salditt教授牽頭的研究小組在學(xué)術(shù)期刊eLife上發(fā)表了名為 “3d Virtual Patho-Histology of Lung Tissue from Covid-19 Patients based on Phase Contrast X-ray Tomography”的研究成果。該文介紹了一種新的X射
2020-11-04
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image->get_new_path( ) .../image.class.php:252 16 0.6852 3611536 imagecreatefromstring( $image = '?PNG\r\n\032\n\000\000\000\rIHDR\000\000\023a\000\000\r&\b\006\000\000\000??6}\000\000\000\tpHYs\000\000\016?\000\000\016?\001?+\016\033\000\000 \000IDATx???A\001\000 \020?0?糅>?\022??=3?\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"??\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000??L?\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000?\024\0236\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000 ń\r\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000H1a\003\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000RL?\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000?\024\0236\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000 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