Paper |
Title |
Page |
TUPOTK026 |
ESS Elliptical Cryomodules Tests at Lund Test Stand |
1261 |
|
- C.G. Maiano, E. Asensi Conejero, N. Elias, P. Goudket, W. Hees, P. Pierini, L. Sagliano, F. Schlander, M.Y. Wang
ESS, Lund, Sweden
- D. Bocian, W. Gaj, P. Halczynski, M. Sienkiewicz, F.D. Skalka, J. Swierblewski, K.M. Wartak, M. Wartak
IFJ-PAN, Kraków, Poland
|
|
|
We present an overview and description of the elliptical cryomodules test activities at Lund Test Stand 2. During 2021 the test facility was commissioned with one prototype, and four series medium beta modules have now been successfully tested at ESS in Lund. This activity allowed the joint ESS and IFJ PAN team to develop all the procedures and the necessary automated tools for the different phases of the site acceptance test campaign (e.g. incoming inspections, coupler conditioning, cooldown strategies, tuning to resonance and electromagnetic/cryogenic performance verification). During the initial test period techniques for diagnostics of limiting mechanisms have been developed and improved up to a consolidated and mature state for the rest of the test campaign. Tests results and the initial statistics is presented and commented.
|
|
DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOTK026
|
|
About • |
Received ※ 07 June 2022 — Revised ※ 12 June 2022 — Accepted ※ 13 June 2022 — Issue date ※ 16 June 2022 |
Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
|
TUPOTK027 |
Field Emission Measurements at Lund Test Stand |
1265 |
|
- C.G. Maiano, N. Elias, E. Laface, P. Pierini, L. Sagliano, M.Y. Wang
ESS, Lund, Sweden
- E. Cenni
CEA-IRFU, Gif-sur-Yvette, France
|
|
|
We present here a description of field emission (FE) measurements set-up developed for elliptical cryomodules test activities at Lund Test Stand 2. A test campaign of field emission measurements has been developed and optimized during cryomodules tests. The scintillator detectors (and their respective shields), chosen for these measurements, have been characterized and optimized. The field emission application has been developed and integrated in the cryomodules tests operator interface. The Initial test results are presented and commented.
|
|
DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOTK027
|
|
About • |
Received ※ 07 June 2022 — Revised ※ 13 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 10 July 2022 |
Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
|
TUPOTK028 |
Tuning of Superconducting Cavities Using the FFT of Transmitted Power |
1268 |
|
- E. Laface, C.G. Maiano, P. Pierini, M.Y. Wang
ESS, Lund, Sweden
|
|
|
We implemented a method to tune the ESS superconducting cavities based on the spectral analysis of the high resolution data available from the Low Level RF system (LLRF) for the transmitted power, without the need of connecting a network analyzer or any other dedicated instrumentation along the RF chain. A frequency peak up to 4 MHz off from the resonating frequency can be detected and used to control the stepper motor of the tuner until the cavity is stretched to the proper length to reach the correct operation frequency. Experience of its use at the ESS Test Stand 2 (TS2) facility at Lund during cryomodule acceptance testing is presented.
|
|
DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOTK028
|
|
About • |
Received ※ 16 May 2022 — Revised ※ 11 June 2022 — Accepted ※ 13 June 2022 — Issue date ※ 14 June 2022 |
Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
|