Overview of LLRF Scope and Development

Slide Note

The LLRF system is responsible for controlling the phase and amplitude of cavities in the linac system. The cost book details the budget for implementing the LLRF system in 155 systems. Adaptations were made to the PEG for delivering and installing the LLRF systems. A schedule outlines the development and delivery of the LLRF control system to the European Spallation Source ERIC. The missing components in the definition are highlighted, and the included hardware modules are specified. PEG has the necessary funds for the LLRF system, except for parts to be procured by ESS.

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Presentation Transcript

  1. LLRF Scope A brief history

  2. LLRF scope The scope of the LLRF system is today defined as: Controlling the phase and amplitude of the cavities Starting at the connector to the cavity probe Ending at the connector to the drive-amplifier. Responsible of tuning the cavities by fast and slow tuners.

  3. Cost book The cost book included the whole budget for taking the principal design of the LLRF system to 155 installed and commissioned systems.

  4. Adaptations to PEG PEG is to deliver, install and commission the LLRF systems for the whole 704 MHz linac. This includes internal cabling of the racks. PEG did not want to procure components from outside Poland, so these were excluded: MTCA chassis PSU CPU Timing Struck AMC + RTM Slow tuning control

  5. SCHEDULE AIK 8.2 - DEVELOPMENT AND DELIVERY OF LLRF CON- TROL SYSTEM TO THE IN-KIND CONTRIBUTION AGREEMENT SIGNED BETWEEN EUROPEAN SPALLATION SOURCE ERIC AND THE POLISH ELECTRONIC GROUP (PEG) This document describes the Scope of Work (SoW) required to be completed by the Polish Electronic Group (PEG) (hereinafter the Partner ) in respect of its contribution of the LLRF control system contri- bution to the ESS ERIC programme. The Partner shall deliver 120 LO RTMs, 120 Piezo Drivers, 240 RTM Carrier AMCs, and inner rack cabling for each system. ESS ERIC shall ship remaining system components to the Partner (COTS). The Partner shall assemble 120 LLRF system units, ship them to ESS Lund and install them according to schedule shown below.

  6. Missing in definition The following is in the low power signal part of the LLRF system, but is not in the original TA: Patch panel (by omission/assumption) Split box (later addition) PIN diode (later addition)

  7. Included hardware From TA: Hardware modules specifications shall be prepared by the Partner with ESS ERIC support for the following modules used in the LLRF system: LO RTM Piezo Driver RTM Carrier Cavity Simulator

  8. Status PEG has all the money for the LLRF system, except the parts that will be procured by ESS. The ESS project has gone through one round of value engineering, and is now starting round two.


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