Mainz 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
AKBP: Arbeitskreis Beschleunigerphysik
AKBP 2: Radiofrequency Systems 1
AKBP 2.5: Vortrag
Montag, 28. März 2022, 15:00–15:15, AKBP-H14
Update of the Quadrupole Resonator for SRF R&D at DESY — •Ricardo Monroy-Villa1,2, Detlef Reschke1, Andrea Muhs1, Jan-Hendrik Thie1, Maike Röhling1, Martin Lemke1, Wolfgang Hillert2, Marc Wenskat2, Wolfgang Ackermann3, Sebastian Keckert4, and Oliver Kugeler4 — 1Deutsches Elektronen-Synchrotron, Hamburg, Germany — 2Universität Hamburg, Institut für Experimentalphysik, Hamburg, Germany — 3Institut für Teilchenbeschleunigung und Elektromagnetische Felder, Darmstadt, Germany — 4Helmholtz-Zentrum Berlin, Berlin, Germany
Superconducting radiofrequency (RF) cavities made of Nb have been shown to achieve their theoretical limit, while only minor improvements using standard procedures are expected in operation. Hence, new treatments and materials that tailor the RF surface are mandatory. Since theoretical models of the RF behavior of such surfaces do not fully describe the observations, we lack guidance for future research and identifying important parameters. To provide experimental data to improve these theoretical models and study material properties, and their impact on the RF performance, a dedicated sample test system is needed. The quadrupole resonator (QPR) is such a test cavity and allows for investigating samples of 7.5 cm in diameter under superconducting-cavity-like conditions in a wide parameter space defined by temperature, magnetic field and frequency. In this work we report the status of the QPR being developed as a joint project of Universität Hamburg and DESY.