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        <title>Frontiers in Physics | Accelerator Physics section | New and Recent Articles</title>
        <link>https://www.frontiersin.org/journals/physics/sections/accelerator-physics</link>
        <description>RSS Feed for Accelerator Physics section in the Frontiers in Physics journal | New and Recent Articles</description>
        <language>en-us</language>
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        <pubDate>2026-04-04T13:22:08.614+00:00</pubDate>
        <ttl>60</ttl>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fphy.2026.1790944</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fphy.2026.1790944</link>
        <title><![CDATA[The design of a compact conduction-cooling system for SRF material characterization]]></title>
        <pubdate>2026-03-30T00:00:00Z</pubdate>
        <category>Methods</category>
        <author>Gai Wang</author><author>Yue Zhang</author><author>Zhongxiang Xu</author><author>Shengwen Quan</author><author>Manqian Ren</author><author>Zeqin Yao</author><author>Fang Wang</author><author>Ziyu Wang</author><author>Shichuan Ding</author><author>Jun Tao</author>
        <description><![CDATA[The precise and efficient testing of the RF performance of superconducting radio frequency (SRF) samples under superconducting conditions serves as the fundamental support for developing new SRF materials. The traditional SRF material RF performance testing systems have technical bottlenecks such as strong dependence on liquid helium, long testing cycles, and high operating costs. In this paper, the design and Multiphysics simulation analysis of a novel conduction-cooling RF performance testing system for SRF materials are presented. The system is numerically predicted to achieve 50 mT and nΩ-level measurement of the surface resistance (Rs) without liquid helium cooling. The core part of the system is an optimized mushroom-type sample host cavity, which operates primarily in the 3.9 GHz TE011 mode, with a sample radius of 33 mm. A Nb3Sn coating on the inner cavity surface is proposed in the design to lower microwave loss, and the entire conduction-cooling structure is engineered and analyzed numerically. Additionally, the resolution and measurement range of Rs are systematically evaluated via Multiphysics simulations, showing the potential of the design for low-cost, high-quality SRF material characterization.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fphy.2025.1567622</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fphy.2025.1567622</link>
        <title><![CDATA[ELIMAIA-ELIMED: a new user platform for radiobiological research utilizing laser-driven protons]]></title>
        <pubdate>2025-04-23T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>P. Bláha</author><author>K. M. Prise</author><author>M. Borghesi</author><author>F. P. Cammarata</author><author>R. Catalano</author><author>P. Chaudhary</author><author>G. A. P. Cirrone</author><author>M. Davídková</author><author>D. Doria</author><author>G. I. Forte</author><author>F. Grepl</author><author>K. Hideghéty</author><author>V. Istokskaia</author><author>L. Manti</author><author>A. McCay</author><author>M. Navrátil</author><author>J. Novák</author><author>A. Pappalardo</author><author>G. Petringa</author><author>G. Russo</author><author>G. Schettino</author><author>F. Schillaci</author><author>E. R. Szabó</author><author>P. Szotkowski</author><author>M. Tryus</author><author>L. E. Vannucci</author><author>V. Vondráček</author><author>D. Margarone</author><author>L. Giuffrida</author>
        <description><![CDATA[The ELIMAIA-ELIMED beamline, powered by the L3 HAPLS petawatt laser, enables the irradiation of biological samples with intermediate-energy laser-driven protons (LDP) in a multi-shot regime. In the pilot radiobiological experiment, protons with a mean energy of ∼24 MeV and doses up to ∼14 mGy per shot, with ∼4 ns bunch duration, were used to irradiate AG01522 normal human skin fibroblasts. The shortest irradiation time achieved was down to ∼17 min/Gy, while the mean and peak dose rates reached ∼1 × 10−3 and 3.5 × 106 Gy/s, respectively. The cells were exposed to doses ranging from ∼0.4 to 1.5 Gy and analyzed for DNA damage, with double-strand breaks visualized as 53BP1 foci. Despite the differences in shot exposures between the multi-shot LDP and the previous experiments (at other facility) with single-shot LDP, similar DNA damage responses were observed. Results with conventionally accelerated protons align closely with the corresponding single-shot LDP samples. These experimental results were achieved as part of the flagship experiment FLAIM (within the IMPULSE EU-funded project) and serve as an initial demonstration of the ELIMAIA-ELIMED platform’s potential for advanced radiobiological research, creating new opportunities for such studies utilizing laser-driven ion sources.]]></description>
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