HB2023 - List of Keywords (klystron)

Paper	Title	Other Keywords	Page
THBP39	Advances on LHC RF Power Limitation Studies at Injection	injection, cavity, operation, controls	567
	H. Timko, T. Argyropoulos, R. Calaga, N. Catalán Lasheras, K. Iliakis, B.E. Karlsen-Bæck, I. Karpov, M. Zampetakis CERN, Meyrin, Switzerland
	The average power consumption of the main RF system during beam injection in the High-Luminosity Large Hadron Collider is expected to be close to the maximum available klystron power. Power transients due to the mismatch of the beam and the action of control loops will exceed the available power. This paper presents the most recent estimations of the injection voltage and steady-state power needed for HL-LHC intensities, taking also beam stability into account. It summarises measurement and simulation efforts ongoing to better understand power transients and beam losses, and describes the operational margin to be taken into account for different equipment.
	Poster THBP39 [0.861 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP39
About •	Received ※ 29 September 2023 — Revised ※ 08 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 20 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP57	A Novel RF Power Source for the ESS-Bilbao Ion Source	controls, ion-source, proton, EPICS	621
	S. Masa, I. Bustinduy, P.J. González, A. Kaftoosian, L.C. Medina, R. Miracoli, S. Varnasseri ESS Bilbao, Zamudio, Spain
	This paper presents the improvements in the ESS Bilbao Proton Ion Source by replacing the amplified radio frequency (RF) pulse of a Klystron-based amplification system using a Solid-State Power Amplifier (SSPA). This new amplification system is based on a 1kW SSPA (2.7 GHz), a Compact-RIO (cRIO) device, a voltage-controlled RF attenuator and auxiliary electronics. The Experimental Physics and Industrial Control System (EPICS) serves as distributed control system (DCS) for controlling and monitoring the data required to achieve a 1.5 ms flat and stable pulse at repetition rate of 14 Hz. The following lines describe the structural and control system changes done in the ion source due to the addition of the SSPA-based amplification system, along with the results of the proton beam extraction tests that demonstrate how this system can serve as a viable substitute for the Klystron-based amplification system.
	Poster THBP57 [2.265 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP57
About •	Received ※ 28 September 2023 — Accepted ※ 09 October 2023 — Issued ※ 26 October 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

THBP39

Advances on LHC RF Power Limitation Studies at Injection

injection, cavity, operation, controls

567

H. Timko, T. Argyropoulos, R. Calaga, N. Catalán Lasheras, K. Iliakis, B.E. Karlsen-Bæck, I. Karpov, M. Zampetakis
CERN, Meyrin, Switzerland

The average power consumption of the main RF system during beam injection in the High-Luminosity Large Hadron Collider is expected to be close to the maximum available klystron power. Power transients due to the mismatch of the beam and the action of control loops will exceed the available power. This paper presents the most recent estimations of the injection voltage and steady-state power needed for HL-LHC intensities, taking also beam stability into account. It summarises measurement and simulation efforts ongoing to better understand power transients and beam losses, and describes the operational margin to be taken into account for different equipment.

Poster THBP39 [0.861 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP39

About •

Received ※ 29 September 2023 — Revised ※ 08 October 2023 — Accepted ※ 11 October 2023 — Issued ※ 20 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBP57

A Novel RF Power Source for the ESS-Bilbao Ion Source

controls, ion-source, proton, EPICS

621

S. Masa, I. Bustinduy, P.J. González, A. Kaftoosian, L.C. Medina, R. Miracoli, S. Varnasseri
ESS Bilbao, Zamudio, Spain

This paper presents the improvements in the ESS Bilbao Proton Ion Source by replacing the amplified radio frequency (RF) pulse of a Klystron-based amplification system using a Solid-State Power Amplifier (SSPA). This new amplification system is based on a 1kW SSPA (2.7 GHz), a Compact-RIO (cRIO) device, a voltage-controlled RF attenuator and auxiliary electronics. The Experimental Physics and Industrial Control System (EPICS) serves as distributed control system (DCS) for controlling and monitoring the data required to achieve a 1.5 ms flat and stable pulse at repetition rate of 14 Hz. The following lines describe the structural and control system changes done in the ion source due to the addition of the SSPA-based amplification system, along with the results of the proton beam extraction tests that demonstrate how this system can serve as a viable substitute for the Klystron-based amplification system.

Poster THBP57 [2.265 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP57

About •

Received ※ 28 September 2023 — Accepted ※ 09 October 2023 — Issued ※ 26 October 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)