TY - JOUR AU - Varga, Dezső AU - Gábor, Bence AU - Sárközi, Bálint AU - Kalluvayal, Adwaith Varooli AU - Nagy, Dávid AU - Dombi, András AU - Clark, Thomas AU - Williams, Francis AU - Domokos, Péter AU - Vukics, András TI - Loading atoms from a large magnetic trap to a small intra-cavity optical lattice JF - PHYSICS LETTERS A J2 - PHYS LETT A PY - 2024 PG - 11 SN - 0375-9601 DO - 10.1016/j.physleta.2024.129444 UR - https://m2.mtmt.hu/api/publication/34750306 ID - 34750306 AB - We show that an optimized loading of a cold ensemble of rubidium-87 atoms from a magnetic trap into an optical lattice sustained by a single, far-red-detuned mode of a high-Q optical cavity can be efficient despite the large volume mismatch of the traps. The magnetically trapped atoms are magnetically transported to the vicinity of the cavity mode and released from the magnetic trap in a controlled way meanwhile undergoing an evaporation period. Large number of atoms get trapped in the dipole potential of the cavity mode for several hundreds of milliseconds. We monitor the number of atoms in the mode volume by a second tone of the cavity close to the atomic resonance. While this probe tone can pump atoms to another ground state uncoupled to the probe, we demonstrate state-independent trapping by applying a repumper laser. LA - English DB - MTMT ER - TY - JOUR AU - Barna, Dániel AU - Brunner, Kristóf AU - Novák, Martin István AU - Borburgh, J. AU - Atanasov, M. AU - Lackner, F. AU - Olvegård, M. AU - Pepitone, K. AU - Santiago, Kern R. AU - Svanberg, C. AU - Bagni, T. TI - Training-free performance of the wax-impregnated SuShi septum magnet JF - SUPERCONDUCTOR SCIENCE & TECHNOLOGY J2 - SUPERCOND SCI TECH VL - 37 PY - 2024 IS - 4 PG - 13 SN - 0953-2048 DO - 10.1088/1361-6668/ad2981 UR - https://m2.mtmt.hu/api/publication/34742376 ID - 34742376 LA - English DB - MTMT ER - TY - JOUR AU - Toral, F. AU - Barna, Dániel AU - Calzolaio, C. AU - Carloni, A. AU - Ceruti, G. AU - De Matteis, E. AU - Kirby, G. AU - Lecrevisse, T. AU - Mariotto, S. AU - Munilla, J. AU - Perini, D. AU - Prioli, M. AU - Rossi, L. AU - Statera, M. AU - Sorbi, M. AU - Sorti, S. AU - Valente, R.U. TI - Status of Nb-Ti CCT Magnet EU Programs for Hadron Therapy JF - IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY J2 - IEEE T APPL SUPERCON VL - 34 PY - 2024 IS - 5 SP - 1 EP - 5 PG - 5 SN - 1051-8223 DO - 10.1109/TASC.2023.3349252 UR - https://m2.mtmt.hu/api/publication/34725648 ID - 34725648 LA - English DB - MTMT ER - TY - JOUR AU - Fehér, Anna Éva AU - Kovács, Róbert Sándor AU - Sudár, Ákos AU - Barnaföldi, Gergely Gábor TI - Challenges in the thermal modeling of highly porous carbon foams JF - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY J2 - J THERM ANAL CALORIM PY - 2024 PG - 12 SN - 1388-6150 DO - 10.1007/s10973-024-12927-w UR - https://m2.mtmt.hu/api/publication/34691294 ID - 34691294 N1 - Export Date: 07 March 2024; CODEN: JTACF AB - The heat pulse (flash) experiment is a well-known, widely used method to determine thermal diffusivity. However, for heterogeneous, highly porous materials, neither the measurement nor the evaluation methodologies are straightforward. In the present paper, we focus on two open-cell carbon foam types, differing in their porosity but having the same sample size. Recent experiments showed that a non-Fourier behavior, called ’over-diffusive’ propagation, can be present for such a complex structure. The (continuum) Guyer–Krumhansl equation stands as a promising candidate to model such transient thermal behavior. In order to obtain a reliable evaluation and thus reliable thermal parameters, we utilize a novel, state-of-the-art evaluation procedure developed recently using an analytical solution of the Guyer–Krumhansl equation. Based on our observations, it turned out that the presence of high porosity alone is necessary but not satisfactory for non-Fourier behavior. Additionally, the mentioned non-Fourier effects are porosity-dependent; however, porous samples can also follow the Fourier law on a particular time scale. These data serve as a basis to properly identify the characteristic heat transfer mechanisms and their corresponding time scales, which altogether result in the present non-Fourier behavior. Based on these, we determined the validity region of Fourier’s law in respect of time scales. LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Erzsébet AU - Kristály, Ferenc AU - Kárpáti, Viktor AU - Mertinger, Valéria TI - In-situ investigation of the decomposition process in cold-rolled Nb53Ti47 alloy JF - HELIYON J2 - HELIYON VL - 10 PY - 2024 IS - 4 PG - 9 SN - 2405-8440 DO - 10.1016/j.heliyon.2024.e26543 UR - https://m2.mtmt.hu/api/publication/34677613 ID - 34677613 N1 - Export Date: 07 March 2024 LA - English DB - MTMT ER - TY - JOUR AU - Demény, Attila AU - Berentés, A AU - Rinyu, László AU - Kovács, Ivett AU - Surányi, Gergely AU - Virág, Magdolna TI - Subaqueous carbonate speleothems as paleotemperature archives – clumped isotope thermometry and stable isotope compositions of inclusion-hosted wate JF - INTERNATIONAL JOURNAL OF SPELEOLOGY J2 - INT J SPELEOL VL - 53 PY - 2024 IS - 1 SP - 25 EP - 37 PG - 13 SN - 0392-6672 DO - 10.5038/1827-806X.53.1.2480 UR - https://m2.mtmt.hu/api/publication/34659670 ID - 34659670 LA - English DB - MTMT ER - TY - JOUR AU - De Matteis, E. AU - Ballarino, A. AU - Barna, Dániel AU - Carloni, A. AU - Echeandia, A. AU - Kirby, G. AU - Lecrevisse, T. AU - Lucas, J. AU - Mariotto, S. AU - van Nugteren, J. AU - Prioli, M. AU - Rossi, L. AU - Senatore, C. AU - Sorbi, M. AU - Sorti, S. AU - Statera, M. AU - Toral, F. AU - Valente, R. TI - Conceptual design of an HTS Canted Cosine Theta dipole magnet for research and hadron therapy accelerators JF - IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY J2 - IEEE T APPL SUPERCON VL - 34 PY - 2024 IS - 5 PG - 5 SN - 1051-8223 DO - 10.1109/TASC.2024.3360210 UR - https://m2.mtmt.hu/api/publication/34588232 ID - 34588232 N1 - CODEN: ITASE LA - English DB - MTMT ER - TY - JOUR AU - Benedetto, E. AU - Barna, Dániel AU - D'Addazio, M. AU - Maria, R.D. AU - Felcini, E. AU - Frisella, G. AU - Garolfi, L. AU - Latina, A. AU - Norman, H. AU - Oponowicz, E. AU - Pullia, M. AU - Vaszary, T. AU - Veres, Dóra TI - Strongly curved super-conducting magnets: Beam optics modeling and field quality JF - JOURNAL OF PHYSICS-CONFERENCE SERIES J2 - J PHYS CONF SER VL - 2687 PY - 2024 IS - 6 PG - 7 SN - 1742-6588 DO - 10.1088/1742-6596/2687/6/062007 UR - https://m2.mtmt.hu/api/publication/34579728 ID - 34579728 LA - English DB - MTMT ER - TY - JOUR AU - Rossi, L. AU - Barna, Dániel AU - Carloni, A.G. AU - De Matteis, E. AU - Farinon, S. AU - Felcini, E. AU - Gautheron, E. AU - Karppinen, M. AU - Kirby, G. AU - Lecrevisse, T. AU - Musenich, R. AU - Perini, D. AU - Prioli, M. AU - Pullia, M. AU - Sorti, S. AU - Tommasini, D. TI - Magnet Technology and Design of Superconducting Magnets for Heavy Ion Gantry for Hadron Therapy JF - JOURNAL OF PHYSICS-CONFERENCE SERIES J2 - J PHYS CONF SER VL - 2687 PY - 2024 IS - 9 PG - 6 SN - 1742-6588 DO - 10.1088/1742-6596/2687/9/092009 UR - https://m2.mtmt.hu/api/publication/34579726 ID - 34579726 LA - English DB - MTMT ER - TY - JOUR AU - Barna, Dániel AU - Brunner, Kristóf AU - Borburgh, J. AU - Atanasov, M. AU - Lackner, F. AU - Olvegard, M. AU - Pepitone, K. AU - Kern, R.S. AU - Svanberg, C. AU - Bagni, T. TI - Test results of the first wax-impregnated Nb-Ti canted cosine theta septum magnet ”SuShi” JF - IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY J2 - IEEE T APPL SUPERCON VL - 34 PY - 2024 IS - 5 SP - 1 EP - 5 PG - 6 SN - 1051-8223 DO - 10.1109/TASC.2024.3354223 UR - https://m2.mtmt.hu/api/publication/34539609 ID - 34539609 LA - English DB - MTMT ER -