8 results on '"Graczykowski, Ł"'
Search Results
2. TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments.
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Volponi, M., Zieliński, J., Rauschendorfer, T., Huck, S., Caravita, R., Auzins, M., Bergmann, B., Burian, P., Brusa, R. S., Camper, A., Castelli, F., Cerchiari, G., Ciuryło, R., Consolati, G., Doser, M., Eliaszuk, K., Giszczak, A., Glöggler, L. T., Graczykowski, Ł., and Grosbart, M.
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PHYSICS experiments ,ANTIMATTER ,INTERFEROMETRY ,AUTOMATION ,GRAVITY - Abstract
Modern physics experiments are frequently very complex, relying on multiple simultaneous events to happen in order to obtain the desired result. The experiment control system plays a central role in orchestrating the measurement setup: However, its development is often treated as secondary with respect to the hardware, its importance becoming evident only during the operational phase. Therefore, the AE g ̄ IS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) collaboration has created a framework for easily coding control systems, specifically targeting atomic, quantum, and antimatter experiments. This framework, called Total Automation of LabVIEW Operations for Science (TALOS), unifies all the machines of the experiment in a single entity, thus enabling complex high-level decisions to be taken, and it is constituted by separate modules, called MicroServices, that run concurrently and asynchronously. This enhances the stability and reproducibility of the system while allowing for continuous integration and testing while the control system is running. The system demonstrated high stability and reproducibility, running completely unsupervised during the night and weekends of the data-taking campaigns. The results demonstrate the suitability of TALOS to manage an entire physics experiment in full autonomy: being open-source, experiments other than the AE g ̄ IS experiment can benefit from it. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
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3. Pulsed Production of Antihydrogen in AEgIS
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Zurlo N., Auzins M., Bergmann B., Bonomi G., Brusa R.S., Burian P., Camper A., Castelli F., Ciury R., Consolati G., Doser M., Farricker A., Glöggler L., Graczykowski Ł., Grosbart M., Guatieri F., Gusakova N., Haider S., Huck S., Janik M., Kasprowicz G., Khatri G., Kłosowski Ł., Kornakov G., Krumins V., Lappo L., Linek A., Malamant J., Malbrunot C., Mariazzi S., Nowak L., Nowicka D., Oswald E., Pagano D., Penasa L., Piwiński M., Pospisil S., Povolo L., Prelz F., Rangwala S., Rienäcker B., Røhne O.M., Rotondi A., Sandaker H., Smolyanskiy P., Sowiński T., Tefelski D., Testera G., Volponi M., Welsch C.P., Wolz T., Zawada M., and Zielinski J.
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Physics ,QC1-999 - Abstract
Low-temperature antihydrogen atoms are an effective tool to probe the validity of the fundamental laws of Physics, for example the Weak Equivalence Principle (WEP) for antimatter, and -generally speaking- it is obvious that colder atoms will increase the level of precision. After the first production of cold antihydrogen in 2002 [1], experimental efforts have substantially progressed, with really competitive results already reached by adapting to cold antiatoms some well-known techniques pre- viously developed for ordinary atoms. Unfortunately, the number of antihydrogen atoms that can be produced in dedicated experiments is many orders of magnitude smaller than of hydrogen atoms, so the development of novel techniques to enhance the production of antihydrogen with well defined (and possibly controlled) conditions is essential to improve the sensitivity. We present here some experimental results achieved by the AEgIS Collaboration, based at the CERN AD (Antiproton Decelerator) on the production of antihydrogen in a pulsed mode where the production time of 90% of atoms is known with an uncertainty of ~ 250 ns [2]. The pulsed antihydrogen source is generated by the charge-exchange reaction between Rydberg positronium (Ps*) and an antiproton (p¯): p¯ + Ps* → H¯* + e−, where Ps* is produced via the implantation of a pulsed positron beam into a mesoporous silica target, and excited by two consecutive laser pulses, and antiprotons are trapped, cooled and manipulated in Penning-Malmberg traps. The pulsed production (which is a major milestone for AEgIS) makes it possible to select the antihydrogen axial temperature and opens the door for the tuning of the antihydrogen Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. In this paper, we present the results achieved by AEgIS in 2018, just before the Long Shutdown 2 (LS2), as well as some of the ongoing improvements to the system, aimed at exploiting the lower energy antiproton beam from ELENA [3].
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- 2023
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4. Development of a detector for inertial sensing of positronium at AEgIS (CERN)
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Glöggler, Lisa T., Caravita, R., Bergmann, B., Bonomi, G., Brusa, R. S., Burian, P., Camper, A., Castelli, F., Cheinet, P., Comparat, D., Consolati, G., Doser, M., Gjersdal, H., Graczykowski, Ł., Guatieri, F., Haider, S., Huck, S., Janik, M., Kasprowicz, G., Khatri, G., Kornakov, G., Malbrunot, C., Mariazzi, S., Nebbia, G., Nowak, L., Nowicka, D., Oswald, E., Pagano, D., Penasa, L., Pospisil, S., Povolo, L., Prelz, F., Rienäcker, B., Røhne, O. M., Sandaker, H., Stekl, I., Tefelski, D., Tietje, I. C., Volponi, M., Wolz, T., Zimmer, C., and Zurlo, N.
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History ,detector ,CERN ,positronium ,Detectors and Experimental Techniques ,530 Physik ,AEḡIS ,gravitational acceleration ,Computer Science Applications ,Education - Abstract
The primary goal of the AEgIS collaboration at CERN is to measure the gravitational acceleration on neutral antimatter. Positronium (Ps), the bound state of an electron and a positron, is a suitable candidate for a force-sensitive inertial measurement by means of deflectometry/interferometry. In order to conduct such an experiment, the impact position and time of arrival of Ps atoms at the detector must be detected simultaneously. The detection of a low-velocity Ps beam with a spatial resolution of (88 ± 5) μm was previously demonstrated [1]. Based on the methodology employed in [1] and [2], a hybrid imaging/timing detector with increased spatial resolution of about 10 μm was developed. The performance of a prototype was tested with a positron beam. The concept of the detector and first results are presented.
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- 2022
5. EXTRACTING FEMTOSCOPIC RADII IN THE PRESENCE OF SIGNIFICANT ADDITIONAL CORRELATION SOURCES.
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GRACZYKOWSKI, Ł. K., KISIEL, A., JANIK, M. A., and KARCZMARCZYK, P.
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FEMTOSCOPY , *LARGE Hadron Collider , *COLLISIONS (Nuclear physics) , *PROTON-proton interactions , *NUCLEAR structure - Abstract
The Large Hadron Collider has provided large amounts of data on collisions of small systems, such as proton--proton and proton--lead at unprecedented collision energies. Their space-time size and structure can be inferred from the measurement of the femtoscopic correlations for pairs of identical particles. The analysis is complicated by the presence of significant additional sources of two-particle correlations, which influence the correlation function in the region of the femtoscopic effect. In this work, we use p--Pb events generated in a model that includes such additional correlation sources to characterize them and propose a robust method of taking them into account in the extraction of the femtoscopic information. [ABSTRACT FROM AUTHOR]
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- 2014
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6. The Right Coronary Anatomy and Operative Topography of the Tricuspid Valve Annulus.
- Author
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Piotrowski M, Burysz M, Batko J, Litwinowicz R, Kowalewski M, Bartuś K, Wróbel K, Graczykowski Ł, and Słomka A
- Abstract
Background: The region of the tricuspid valve is an important area for various cardiac interventions. In particular, the spatial relationships between the right coronary artery and the annulus of the tricuspid valve should be considered during surgical interventions. The aim of this study was to provide an accurate description of the clinical anatomy and topography of this region., Methods: We analyzed 107 computed tomography scans (44% female, age 62.1 ± 9.4 years) of the tricuspid valve region. The circumference of the free wall of the tricuspid valve annulus was divided into 13 annular points and measurements were taken at each point. The prevalence of danger zones (distance between artery and annulus less than 2 mm) was also investigated., Results: Danger zones were found in 20.56% of the cases studied. The highest prevalence of danger zones and the smallest distances were found at the annular points of the tricuspid valve located at the posterior insertion of the leaflets, without observed sex-specific differences., Conclusion: The highest risk of iatrogenic damage to the right coronary artery is in the posterior part of the tricuspid valve annulus.
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- 2024
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7. Combining echocardiography and fluoroscopy imaging in real time for left atrial appendage occlusion - single center experience from Poland.
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Burysz M, Batko J, Malec-Litwinowicz MH, Kowalewski M, Litwinowicz RA, Burysz A, Graczykowski Ł, and Olejek W
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Introduction: Atrial fibrillation (AF) presents a growing health concern, often requiring stroke prevention measures, primarily through oral anticoagulation (OAC). Surgical interventions such as left atrial appendage occlusion (LAAO) offer alternatives when OAC is contraindicated. In recent years, percutaneous procedures have gained traction as minimally invasive options, demanding precise anatomical insights. Fusion imaging (FI), which combines transesophageal echocardiography (TEE) and fluoroscopy, has emerged as a potential game-changer in transcatheter interventions., Aim: This study introduces FI to LAAO procedures in Poland, assessing its role in guiding interventions, highlighting advantages, and exploring its potential to reshape cardiovascular interventions., Material and Methods: We conducted a retrospective study involving LAAO procedures from March 2015 to December 2018, all utilizing FI. Patient indications, procedural specifics, and safety metrics were collected and analyzed. Follow-ups were conducted at 3 and 6 months., Results: A cohort of 83 patients (mean age: 72.1 ±8.4 years) underwent successful LAAO procedures. FI provided precise device placement and anatomical assessment. Mean procedure time was 54.9 ±34.3 min, contrast medium usage averaged 33.7 ±22.7 ml, and creatinine levels remained stable. Patients were discharged in about 4.2 ±3.4 days. Adverse effects were rare, including minimal bleeding and cardiac tamponade. Follow-ups demonstrated favorable outcomes with low adverse event rates., Conclusions: This study marks the inaugural application of FI in Polish LAAO procedures. FI, offering enhanced visualization and reduced procedure times, holds promise in improving patient safety and treatment efficacy. We recommend its consideration as a standard visualization technique for LAAO procedures., Competing Interests: The authors report no conflict of interest., (Copyright: © 2024 Polish Society of Cardiothoracic Surgeons (Polskie Towarzystwo KardioTorakochirurgów) and the editors of the Polish Journal of Cardio-Thoracic Surgery (Kardiochirurgia i Torakochirurgia Polska).)
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- 2024
- Full Text
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8. Positronium Laser Cooling via the 1^{3}S-2^{3}P Transition with a Broadband Laser Pulse.
- Author
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Glöggler LT, Gusakova N, Rienäcker B, Camper A, Caravita R, Huck S, Volponi M, Wolz T, Penasa L, Krumins V, Gustafsson FP, Comparat D, Auzins M, Bergmann B, Burian P, Brusa RS, Castelli F, Cerchiari G, Ciuryło R, Consolati G, Doser M, Graczykowski Ł, Grosbart M, Guatieri F, Haider S, Janik MA, Kasprowicz G, Khatri G, Kłosowski Ł, Kornakov G, Lappo L, Linek A, Malamant J, Mariazzi S, Petracek V, Piwiński M, Pospíšil S, Povolo L, Prelz F, Rangwala SA, Rauschendorfer T, Rawat BS, Rodin V, Røhne OM, Sandaker H, Smolyanskiy P, Sowiński T, Tefelski D, Vafeiadis T, Welsch CP, Zawada M, Zielinski J, and Zurlo N
- Abstract
We report on laser cooling of a large fraction of positronium (Ps) in free flight by strongly saturating the 1^{3}S-2^{3}P transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced in a magnetic and electric field-free environment. We observe two different laser-induced effects. The first effect is an increase in the number of atoms in the ground state after the time Ps has spent in the long-lived 2^{3}P states. The second effect is one-dimensional Doppler cooling of Ps, reducing the cloud's temperature from 380(20) to 170(20) K. We demonstrate a 58(9)% increase in the fraction of Ps atoms with v_{1D}<3.7×10^{4} ms^{-1}.
- Published
- 2024
- Full Text
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