eu SATO Europe launches RAIN RFID asset management solution ASETRA to boost operational efficiency By www.retailtechnologyreview.com Published On :: SATO has launched its RAIN RFID1-based asset management solution ASETRA in Europe. The easy to deploy system comprising RFID tags, RFID printers and desktop reader/writers accurately and easily tracks and manages assets through the supply chain. Full Article RFID Data Capture Print & Label
eu Ergonomic Solutions: Delivering customer engagement at EuroCIS2024 By www.retailtechnologyreview.com Published On :: The retail industry is witnessing an unprecedented level of competition, and traditional marketing strategies are becoming obsolete.Recognizing the need for enabling innovative digital customer experiences, Ergonomic Solutions will showcase a comprehensive lineup of engaging customer facing solutions to drive personal interaction in retail and hospitality environments at EuroCIS 2024 (Hall 9 A40) in Dusseldorf from 27th – 29th February. Full Article Data Capture EPoS Systems Exhibitions and Events
eu CashComplete to Demonstrate Unified Cash Management Process at EuroShop 2020 By www.retailtechnologyreview.com Published On :: SUZOHAPP – a global market leader of software and hardware payment management solutions – will be exhibiting at EuroShop, the world’s largest retail trade fair from February 16-20 in Dusseldorf, Germany.On display at booth #6A75 will be the market leading CashComplete™ line of payment management solutions. Full Article EPoS Systems Kiosk Technology Exhibitions and Events
eu KIOSK Information Systems Europe boosts business development and customer support with new staff By www.retailtechnologyreview.com Published On :: The Posiflex Group has responded to rising demand from customers in Europe by recruiting a seasoned executive to boost the European sales and marketing operations in its KIOSK subsidiary, a manufacturer of kiosks and interactive displays. Full Article Kiosk Technology
eu SumUp launches Kiosk to accelerate orders and beat the queues By www.retailtechnologyreview.com Published On :: Global financial technology company SumUp has unveiled its Kiosk solution designed to transform how businesses process orders. SumUp’s Kiosk solution is claimed to be able to dramatically improve the speed at which merchants can process orders. Full Article Kiosk Technology Data Capture
eu Queue busting over peak season with mobile receipt and label printers By www.retailtechnologyreview.com Published On :: The peak season is renowned for Christmas cheer, retail opportunity, in store shopping, bustling shopping centres and queues. Additionally, shoppers and restaurant clientele are busy. They detest queues. Their time is precious. They have places to go and people to see. Full Article Critical Issues Print and Label
eu ACS Postal Services partners with BIXOLON to enhance European courier services with mobile printing solutions By www.retailtechnologyreview.com Published On :: BIXOLON Europe GmbH, a subsidiary of BIXOLON, the manufacturer of advanced receipt, label and mobile printers, has entered into a partnership with ACS Postal Services (ACS), the Greek courier service provider. Full Article Print and Label
eu Brother International Europe and Cool Earth celebrate their 15 year partnership By www.retailtechnologyreview.com Published On :: This Earth Day, Brother International Europe is celebrating 15 years since first joining forces with the rainforest conservation charity, becoming their longest-serving commercial partner. Full Article Data Capture Print and Label
eu Russia destroys Europe's largest underground gas storage facility in Ukraine By english.pravda.ru Published On :: Fri, 12 Apr 2024 19:30:00 +0300 Ukraine dreamed of becoming "the key to the security of Europe's gas supply,” the gas hub of Europe. Moscow found this unnecessary. Ukraine wants to become EU's gas hub According to Deputy Minister of Energy of Ukraine Svetlana Grinchuk, imports usually account for up to 10 billion cubic meters of the total volume of Ukrainian storage facilities of 31 billion cubic meters. Ukraine stores gas from Poland, Norway, Hungary, and other countries, which they receive even from the Caspian region, as well as liquefied natural gas (LNG), which comes to Europe from the United States. "The EU aims to phase out the use of Russian gas and reduce the share of fossil fuels in the energy mix. Ukraine can help achieve these goals," Grinchuk told Euractiv. Full Article Incidents
eu US puppets in Europe nervous as Ukraine may collapse by September By english.pravda.ru Published On :: Fri, 31 May 2024 17:38:00 +0300 The Ukrainian army will be able to hold out until the beginning of autumn at most. Most likely, though, everything will collapse in June-July, observers believe. France Presse wrote that Zelensky's office repeatedly used Western weapons to strike the Russian Federation. For the last time, Kyiv struck targets in the Krasnodar Territory (Southern Russia). The US has gauthorised Kyiv to use US-made weapons to strike deep into Russia too. Is further escalation with the West coming? "The real strategy of the West is logical and consistent. They understand it in the West very well that they will have to switch to strategic defense, because there are not enough troops and losses have been growing catastrophically. The Ukrainian army lacks weapons and military equipment. Therefore, they want the Armed Forces of Ukraine to hold out, and this is only possible by switching to strategic defense. In other words, they want Ukrainian to maintain relative stability at least for several months,” Director of the Center for Military-Political Studies of MGIMO Alexey Podberezkin told Ukraina.ru publication. Full Article Incidents
eu ISTA European Packaging Symposium will bring together global transport packaging leaders to focus on e-commerce, sustainability and more By www.retailtechnologyreview.com Published On :: The International Safe Transit Association (ISTA), the industry developer of pre-shipment performance testing standards for packaged products, has announced programming for its annual European Packaging Symposium, which will be held 8-9 October at the Le Méridien Frankfurt in Frankfurt, Germany. Full Article Internet Retailing Exhibitions and Events
eu UK to host Europe’s largest ethnic minority supplier diversity conference By www.retailtechnologyreview.com Published On :: Minority Supplier Development UK (MSDUK) and the European Supplier Diversity Program (ESDP) have announced the final opportunity to register for 2024 Business Diversity Connect, the ethnic minority business (EMB) supplier diversity conference. Full Article Exhibitions and Events Retail Supply Chain
eu Europe's largest vaccination station opens in Moscow By english.pravda.ru Published On :: Mon, 05 Jul 2021 14:53:00 +0300 The largest vaccination station in Europe was opened in Moscow on the territory of the Gostiny Dvor shopping mall, Moscow Mayor Sergei Sobyanin said. According to the message posted on Sobyanin's website, the station can take up to 6,000 people a day. This is the largest vaccination centre in Moscow, Sobyanin said. The mayor added that the vaccination station in Moscow's iconic GUM department store on Red Square does not accommodate those who want to get vaccinated, nor is it possible to ensure social distance there due to small premises. The new vaccination station in Gostiny Dvor was opened instead of the one in GUM. Full Article Health
eu Monkeypox on the rise in Europe and on the way to Russia By english.pravda.ru Published On :: Fri, 20 May 2022 15:28:00 +0300 The likelihood for monkeypox to appear in Russia is small, but the infection may find itself in Russia anyway, epidemiologists say. The pandemic potential of the disease is quite low. Representatives for French and Belgian authorities reported first cases of monkeypox infection in humans. According to the French Ministry of Health, the first case of the infection was recorded in the metropolitan region of Ile-de-France. Monkeypox was detected in a 29-year-old man. The individual was put in self-isolation. The patient says that he does not see any complications in how the illness develops. Monkeypox is prevalent in Western and Central Africa. The virus spreads mostly among animals such as rodents and non-human apes. It can be contagious to humans as well. Full Article Health
eu Gene Therapy Protects Against Motor Neuron Disease in Rats By www.newswise.com Published On :: Tue, 12 Nov 2024 11:30:51 EST University of Wisconsin-Madison researchers targeting a group of hereditary neurodegenerative diseases have found success using a gene therapy treatment in an animal model. The approach, which uses CRISPR-Cas9 genome editing technology, offers a unique and promising strategy that could one day treat rare but debilitating motor neuron diseases in humans. Full Article
eu Lean Hypotheses and Effectual Commitments: An Integrative Framework Delineating the Methods of Science and Entrepreneurship By www.newswise.com Published On :: Wed, 13 Nov 2024 06:15:47 EST Full Article
eu Entrepreneurship and Democracy: A Complex Relationship By www.newswise.com Published On :: Tue, 05 Nov 2024 09:30:22 EST Full Article
eu The Enactment of a Corporate Entrepreneurial Role: A Double-Edged Sword Forged by Heart and Context By www.newswise.com Published On :: Mon, 11 Nov 2024 09:45:00 EST Full Article
eu Conceptualizing International New Ventures as the Nexus of Entrepreneurship and International Business By www.newswise.com Published On :: Mon, 11 Nov 2024 10:35:56 EST Full Article
eu Another Body Found in Search for Missing Geumseong Crew Members By world.kbs.co.kr Published On :: Mon, 11 Nov 2024 08:40:26 +0900 [Domestic] : Another body was found in the search for missing crew members after a fishing boat sank off Jeju Island last week. According to the Jeju branch of the Korea Coast Guard on Monday, the body was found close to the sunken boat around 4 p.m. Sunday during an underwater search using a remotely operated ...[more...] Full Article Domestic
eu Son Heung-min Earns First Two Assists of Season in Premier League Win By world.kbs.co.kr Published On :: Sun, 22 Sep 2024 12:19:36 +0900 [Sports] : South Korean forward Son Heung-min of the Tottenham Hotspur has picked up his first two assists of the season, helping his club with the second win of the season. Son set up Brennan Johnson's 28th-minute goal in a match against Brentford on Saturday at Tottenham Hotspur Stadium in London, breaking ...[more...] Full Article Sports
eu Son Heung-min Injury Puts South Korea on Alert ahead of World Cup Qualifiers By world.kbs.co.kr Published On :: Mon, 30 Sep 2024 11:39:46 +0900 [Sports] : South Korean forward Son Heung-min of the Tottenham Hotspur soccer club has missed a Premier League match against Manchester United due to an injury. Tottenham won three-nil Sunday in Son’s absence at Old Trafford. Son was substituted against Qarabağ FK in the team's Europa League opener Thursday with ...[more...] Full Article Sports
eu Son Heung-min to Sit Out Next Pair of 2026 World Cup Qualifiers Due to Injury By world.kbs.co.kr Published On :: Fri, 04 Oct 2024 15:32:49 +0900 [Sports] : Tottenham Hotspur forward Son Heung-min has been excluded from the South Korean national football team’s roster for the third round of 2026 FIFA World Cup qualifiers, after he sat out two recent Premier League matches due to a hamstring injury. The Korea Football Association(KFA) said Friday that it ...[more...] Full Article Sports
eu Son Heung-min Returns as National Team Faces Kuwait, Palestine in World Cup Qualifiers By world.kbs.co.kr Published On :: Mon, 04 Nov 2024 15:51:08 +0900 [Sports] : The men’s national football team is set to face Kuwait and Palestine in mid-November in the third round of 2026 FIFA World Cup qualifiers with the return of captain Son Heung-min, who sat out matches in October due to a hamstring injury. Head coach Hong Myung-bo announced the 26-member roster on Monday, ...[more...] Full Article Sports
eu What's the Easiest Business to Start? 14 Ideas for Entrepreneurs By money.howstuffworks.com Published On :: Fri, 26 Jul 2024 10:05:02 -0400 Looking for a career change, or just trying to make some extra cash on the side? You may be able to leverage talents that you already have and put them into your own hustle, or maybe you're simply on the hunt for the easiest business to start. Full Article
eu Reuters: Trump Heading to Palm Beach Convention Center to Meet Supporters By world.kbs.co.kr Published On :: Wed, 06 Nov 2024 15:26:15 +0900 [International] : U.S. Republican presidential nominee Donald Trump is reportedly heading to the Palm Beach County Convention Center in Florida to address his supporters at an election night rally. That is according to Reuters on Wednesday, citing an unnamed official from the former president’s election camp. Trump, ...[more...] Full Article International
eu N. Korea Slams EU for Proposing Human Rights Resolution By world.kbs.co.kr Published On :: Wed, 06 Nov 2024 16:58:02 +0900 [International] : North Korea has slammed the European Union(EU) for moving to adopt a resolution to address human rights violations in the North. In an announcement carried by the state-run Korean Central News Agency, the North’s permanent mission to the UN criticized the EU for following what it called the United ...[more...] Full Article International
eu Gov't Designates '2024 Hangeul Week' to Celebrate Creation of Korean Alphabet By world.kbs.co.kr Published On :: Mon, 30 Sep 2024 14:33:42 +0900 [Culture] : The government has designated the seven days from Friday to next Thursday as the "2024 Hangeul Week," on the occasion of the 578th Hangeul Day on October 9 to mark the creation of the Korean alphabet. According to the culture ministry on Monday, a number of cultural events that can help participants better ...[more...] Full Article Culture
eu Korean Cultural Centers in 28 Countries to Mark Hangeul Day With Diverse Events By world.kbs.co.kr Published On :: Mon, 07 Oct 2024 19:10:23 +0900 [Culture] : The 31 Korean Cultural Centers in 28 countries around the world will hold various events promoting the value and beauty of Hangeul as South Korea will mark the 578th Hangeul Day on Wednesday. The center in France will provide the first performance of a song created by South Korean composer Kim Dae-seong ...[more...] Full Article Culture
eu PM Han in Hangeul Day Speech: Nation Has Duty to Further Develop Korean Alphabet By world.kbs.co.kr Published On :: Wed, 09 Oct 2024 14:17:51 +0900 [Culture] : Prime Minister Han Duck-soo said the nation has a duty to further develop the Korean alphabet, hangeul, which has gained worldwide recognition as a unique writing system. At a government ceremony marking the 578th Hangeul Day on Wednesday, Han raised concerns about “indifference to the Korean language” ...[more...] Full Article Culture
eu Exhibit to Highlight Calligraphy by Korean Independence Fighter Ahn Jung-geun By world.kbs.co.kr Published On :: Wed, 23 Oct 2024 15:41:15 +0900 [Culture] : Calligraphy by the late Korean independence fighter Ahn Jung-geun will soon be on display for the South Korean public. According to the National Museum of Korean Contemporary History, a special exhibition on Ahn’s writings will open Thursday in cooperation with the Ahn Junggeun Memorial Association ...[more...] Full Article Culture
eu What's the Difference Between Liquor and Liqueur? By recipes.howstuffworks.com Published On :: Tue, 20 Feb 2024 18:42:02 -0500 Liquor and liqueur are spelled so similarly, it's easy to confuse them for being the same. But they're not. So how are they different? Full Article
eu When Fans Ask for a Photo and You're Not Wearing Makeup By world.kbs.co.kr Published On :: 2024-10-28 +09:00 Spook is in the air! [more...] Full Article Economy&It
eu New research supports conservation of fallow deer across Europe - British Geological Survey By news.google.com Published On :: Tue, 16 Apr 2024 10:05:04 GMT New research supports conservation of fallow deer across Europe British Geological Survey Full Article
eu Delivering a sustainable urban future for Europe through geoscience - British Geological Survey By news.google.com Published On :: Wed, 08 May 2024 16:17:43 GMT Delivering a sustainable urban future for Europe through geoscience British Geological Survey Full Article
eu GraphT–T (V1.0Beta), a program for embedding and visualizing periodic graphs in 3D Euclidean space By journals.iucr.org Published On :: 2024-04-29 Following the work of Day & Hawthorne [Acta Cryst. (2022), A78, 212–233] and Day et al. [Acta Cryst. (2024), A80, 258–281], the program GraphT–T has been developed to embed graphical representations of observed and hypothetical chains of (SiO4)4− tetrahedra into 2D and 3D Euclidean space. During embedding, the distance between linked vertices (T–T distances) and the distance between unlinked vertices (T⋯T separations) in the resultant unit-distance graph are restrained to the average observed distance between linked Si tetrahedra (3.06±0.15 Å) and the minimum separation between unlinked vertices is restrained to be equal to or greater than the minimum distance between unlinked Si tetrahedra (3.713 Å) in silicate minerals. The notional interactions between vertices are described by a 3D spring-force algorithm in which the attractive forces between linked vertices behave according to Hooke's law and the repulsive forces between unlinked vertices behave according to Coulomb's law. Embedding parameters (i.e. spring coefficient, k, and Coulomb's constant, K) are iteratively refined during embedding to determine if it is possible to embed a given graph to produce a unit-distance graph with T–T distances and T⋯T separations that are compatible with the observed T–T distances and T⋯T separations in crystal structures. The resultant unit-distance graphs are denoted as compatible and may form crystal structures if and only if all distances between linked vertices (T–T distances) agree with the average observed distance between linked Si tetrahedra (3.06±0.15 Å) and the minimum separation between unlinked vertices is equal to or greater than the minimum distance between unlinked Si tetrahedra (3.713 Å) in silicate minerals. If the unit-distance graph does not satisfy these conditions, it is considered incompatible and the corresponding chain of tetrahedra is unlikely to form crystal structures. Using GraphT–T, Day et al. [Acta Cryst. (2024), A80, 258–281] have shown that several topological properties of chain graphs influence the flexibility (and rigidity) of the corresponding chains of Si tetrahedra and may explain why particular compatible chain arrangements (and the minerals in which they occur) are more common than others and/or why incompatible chain arrangements do not occur in crystals despite being topologically possible. Full Article text
eu Structure of the outer membrane porin OmpW from the pervasive pathogen Klebsiella pneumoniae By journals.iucr.org Published On :: 2024-01-01 Conjugation is the process by which plasmids, including those that carry antibiotic-resistance genes, are mobilized from one bacterium (the donor) to another (the recipient). The conjugation efficiency of IncF-like plasmids relies on the formation of mating-pair stabilization via intimate interactions between outer membrane proteins on the donor (a plasmid-encoded TraN isoform) and recipient bacteria. Conjugation of the R100-1 plasmid into Escherichia coli and Klebsiella pneumoniae (KP) recipients relies on pairing between the plasmid-encoded TraNα in the donor and OmpW in the recipient. Here, the crystal structure of K. pneumoniae OmpW (OmpWKP) is reported at 3.2 Å resolution. OmpWKP forms an eight-stranded β-barrel flanked by extracellular loops. The structures of E. coli OmpW (OmpWEC) and OmpWKP show high conservation despite sequence variability in the extracellular loops. Full Article text
eu The structure of a pectin-active family 1 polysaccharide lyase from the marine bacterium Pseudoalteromonas fuliginea By journals.iucr.org Published On :: 2024-06-27 Pseudoalteromonas fuliginea sp. PS47 is a recently identified marine bacterium that has extensive enzymatic machinery to metabolize polysaccharides, including a locus that targets pectin-like substrates. This locus contains a gene (locus tag EU509_03255) that encodes a pectin-degrading lyase, called PfPL1, that belongs to polysaccharide lyase family 1 (PL1). The 2.2 Å resolution X-ray crystal structure of PfPL1 reveals the compact parallel β-helix fold of the PL1 family. The back side of the core parallel β-helix opposite to the active site is a meandering set of five α-helices joined by lengthy loops. A comparison of the active site with those of other PL1 enzymes suggests a catalytic mechanism that is independent of metal ions, such as Ca2+, but that substrate recognition may require metal ions. Overall, this work provides the first structural insight into a pectinase of marine origin and the first structure of a PL1 enzyme in subfamily 2. Full Article text
eu Structures of Brucella ovis leucine-, isoleucine-, valine-, threonine- and alanine-binding protein reveal a conformationally flexible peptide-binding cavity By journals.iucr.org Published On :: 2024-08-23 Brucella ovis is an etiologic agent of ovine epididymitis and brucellosis that causes global devastation in sheep, rams, goats, small ruminants and deer. There are no cost-effective methods for the worldwide eradication of ovine brucellosis. B. ovis and other protein targets from various Brucella species are currently in the pipeline for high-throughput structural analysis at the Seattle Structural Genomics Center for Infectious Disease (SSGCID), with the aim of identifying new therapeutic targets. Furthermore, the wealth of structures generated are effective tools for teaching scientific communication, structural science and biochemistry. One of these structures, B. ovis leucine-, isoleucine-, valine-, threonine- and alanine-binding protein (BoLBP), is a putative periplasmic amino acid-binding protein. BoLBP shares less than 29% sequence identity with any other structure in the Protein Data Bank. The production, crystallization and high-resolution structures of BoLBP are reported. BoLBP is a prototypical bacterial periplasmic amino acid-binding protein with the characteristic Venus flytrap topology of two globular domains encapsulating a large central cavity containing the peptide-binding region. The central cavity contains small molecules usurped from the crystallization milieu. The reported structures reveal the conformational flexibility of the central cavity in the absence of bound peptides. The structural similarity to other LBPs can be exploited to accelerate drug repurposing. Full Article text
eu The smearing function for a multi-slit very small angle neutron scattering instrument By journals.iucr.org Published On :: This study validates the feasibility of applying a smearing method for the multi-slit very small angle neutron scattering instrument (MS-VSANS) at the China Spallation Neutron Source. Through analysis limited to a vertical range of 8 mm, the study demonstrates consistency between the predicted smearing function and experimental data, marking a significant milestone in utilizing real data from such instruments. Full Article text
eu Grazing-incidence small-angle neutron scattering at high pressure (HP-GISANS): a soft matter feasibility study on grafted brush films By journals.iucr.org Published On :: We present a demonstration of high-pressure grazing-incidence small-angle neutron scattering for soft matter thin films. The results suggest changes in water reorganization at different pressures. Full Article text
eu Small-angle scattering and dark-field imaging for validation of a new neutron far-field interferometer By journals.iucr.org Published On :: A neutron far-field interferometer is under development at NIST with the aim of enabling a multi-scale measurement combining the best of small-angle neutron scattering (SANS) and neutron imaging and tomography. We use the close relationship between SANS, ultra-SANS, spin-echo SANS and dark-field imaging and measurements of monodisperse spheres as a validation metric, highlighting the strengths and weaknesses of each of these neutron techniques. Full Article text
eu Multimodal reconstruction of TbCo thin-film structure with Bayesian analysis of polarized neutron reflectivity By journals.iucr.org Published On :: For the first time, a multimodal reconstruction of a magnetic thin-film structure has been found using polarised neutron reflectivity. This has been achieved by implementing the Bayesian approach in combination with error correction based on the maximum likelihood method and instrument function optimization. Full Article text
eu Grazing-incidence small-angle neutron scattering at high pressure (HP-GISANS): a soft matter feasibility study on grafted brush films By journals.iucr.org Published On :: 2024-11-04 Grazing-incidence small-angle neutron scattering (GISANS) under pressure (HP-GISANS) at the solid (Si)–liquid (D2O) interface is demonstrated for the pressure-induced lateral morphological characterization of the nanostructure in thin (<100 nm) soft matter films. We demonstrate feasibility by investigating a hydrophobic {poly[(2,2,3,3,4,4,5,5-octafluoro)pentyl methacrylate]} (POFPMA)–hydrophilic {poly[2-(dimethylamino)ethyl methacrylate]} (PDMAEMA) brush mixture of strong incompatibility between the homopolymers, anchored on Si, at T = 45°C for two pressures, P = 1 bar and P = 800 bar. Our GISANS results reveal nanostructural rearrangements with increasing P, underlining P-induced effects in tethered polymer brush layers swollen with bulk solvent. Full Article text
eu Small-angle scattering and dark-field imaging for validation of a new neutron far-field interferometer By journals.iucr.org Published On :: 2024-11-08 The continued advancement of complex materials often requires a deeper understanding of the structure–function relationship across many length scales, which quickly becomes an arduous task when multiple measurements are required to characterize hierarchical and inherently heterogeneous materials. Therefore, there are benefits in the simultaneous characterization of multiple length scales. At the National Institute of Standards and Technology, a new neutron far-field interferometer is under development that aims to enable a multi-scale measurement combining the best of small-angle neutron scattering (SANS) and neutron imaging and tomography. Spatially resolved structural information on the same length scales as SANS (0.001–1 µm) and ultra-small-angle neutron scattering (USANS, 0.1–10 µm) will be collected via dark-field imaging simultaneously with regular attenuation radiography (>10 µm). The dark field is analogous to the polarization loss measured in spin-echo SANS (SESANS) and is related to isotropic SANS through a Hankel transform. Therefore, we use this close relationship and analyze results from SANS, USANS, SESANS and dark-field imaging of monodisperse spheres as a validation metric for the interferometry measurements. The results also highlight the strengths and weaknesses of these neutron techniques for both steady-state and pulsed neutron sources. Finally, we present an example of the value added by the spatial resolution enabled by dark-field imaging in the study of more complex heterogeneous materials. This information would otherwise be lost in other small-angle scattering measurements averaged over the sample. Full Article text
eu The smearing function for a multi-slit very small angle neutron scattering instrument By journals.iucr.org Published On :: 2024-10-29 Besides traditional pinhole geometry, the multi-slit very small angle neutron scattering instrument (MS-VSANS) at the China Spallation Neutron Source also utilizes a multi-slit collimation system to focus neutrons. Using the special focusing structures, the minimum scattering vector magnitude (q) can reach 0.00028 Å−1. The special structures also lead to a significantly different smearing function. By comparing the results of theoretical calculations with experimental data, we have validated the feasibility of a smearing method based on a mature theory for slit smearing. We use the weight-averaged intensity of neutron wavelength as a representative to evaluate the effect from a broad wavelength distribution, concentrating on the effect from the geometry of the multi-slit structures and the detector. The consistency of the theoretical calculation of the smearing function with experimental VSANS scattering profiles for a series of polystyrene standards of different diameters proves the feasibility of the smearing method. This marks the inaugural use of real experimental data from an instrument employing a multi-slit collimation system. Full Article text
eu X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility By journals.iucr.org Published On :: 2024-04-08 The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument. The imager unit in DES is a key tool for aligning the beam to a standard trajectory and for adjusting optical elements such as focusing lenses or the split-and-delay line. Furthermore, the DES features a bent-diamond-crystal spectrometer to disperse the spectrum of the direct beam to a line detector. This enables pulse-resolved characterization of the EuXFEL spectrum to provide X-ray energy calibration, and the spectrometer is particularly useful in commissioning special modes of the accelerator. Together with diamond-based intensity monitors, the imager and spectrometer form the DES unit which also contains a heavy-duty beamstop at the end of the MID instrument. Here, we describe the setup in detail and provide exemplary beam diagnostic results. Full Article text
eu Evaluation of the X-ray/EUV Nanolithography Facility at AS through wavefront propagation simulations By journals.iucr.org Published On :: 2024-04-17 Synchrotron light sources can provide the required spatial coherence, stability and control to support the development of advanced lithography at the extreme ultraviolet and soft X-ray wavelengths that are relevant to current and future fabricating technologies. Here an evaluation of the optical performance of the soft X-ray (SXR) beamline of the Australian Synchrotron (AS) and its suitability for developing interference lithography using radiation in the 91.8 eV (13.5 nm) to 300 eV (4.13 nm) range are presented. A comprehensive physical optics model of the APPLE-II undulator source and SXR beamline was constructed to simulate the properties of the illumination at the proposed location of a photomask, as a function of photon energy, collimation and monochromator parameters. The model is validated using a combination of experimental measurements of the photon intensity distribution of the undulator harmonics. It is shown that the undulator harmonics intensity ratio can be accurately measured using an imaging detector and controlled using beamline optics. Finally, the photomask geometric constraints and achievable performance for the limiting case of fully spatially coherent illumination are evaluated. Full Article text
eu Hard X-ray operation of X-ray gas monitors at the European XFEL By journals.iucr.org Published On :: 2024-06-05 X-ray gas monitors (XGMs) are operated at the European XFEL for non-invasive single-shot pulse energy measurements and average beam-position monitoring. The underlying measurement principle is the photo-ionization of rare gas atoms at low gas pressures and the detection of the photo-ions and photo-electrons created. These are essential for tuning and sustaining self-amplified spontaneous emission (SASE) operation, machine radiation safety, and sorting single-shot experimental data according to pulse energy. In this paper, the first results from XGM operation at photon energies up to 30 keV are presented, which are far beyond the original specification of this device. Here, the Huge Aperture MultiPlier (HAMP) is used for single-shot pulse energy measurements since the standard X-ray gas monitor detectors (XGMDs) do not provide a sufficient signal-to-noise ratio, even at the highest operating gas pressures. A single-shot correlation coefficient of 0.98 is measured between consecutive XGMs operated with HAMP, which is as good as measuring with the standard XGMD detectors. An intra-train non-linearity of the HAMP signal is discovered, and operation parameters to mitigate this effect are studied. The upper repetition rate limit of HAMP operation at 2.25 MHz is also determined. Finally, the possibilities and limits for future XGM operation at photon energies up to 50 keV are discussed. Full Article text
eu A 1D imaging soft X-ray spectrometer for the small quantum systems instrument at the European XFEL By journals.iucr.org Published On :: 2024-07-30 A 1D imaging soft X-ray spectrometer installed on the small quantum systems (SQS) scientific instrument of the European XFEL is described. It uses movable cylindrical constant-line-spacing gratings in the Rowland configuration for energy dispersion in the vertical plane, and Wolter optics for simultaneous 1D imaging of the source in the horizontal plane. The soft X-ray fluorescence spectro-imaging capability will be exploited in pump–probe measurements and in investigations of propagation effects and other nonlinear phenomena. Full Article text