Author: Neswold, R.
Paper Title Page
MOPGF145 Commissioning and Design of the Machine Protection System for Fermilab's Fast Facility 1
  • L.R. Carmichael, D.J. Crawford, N. Liu, R. Neswold, A. Warner, J.Y. Wu
    Fermilab, Batavia, Illinois, USA
  The Fermilab Accelerator Science and Technology (FAST) Facility will provide an electron beam with up to 3000 bunches per macro-pulse, 5Hz repetition rate and 300 MeV beam energy. The completed machine will be capable of sustaining an average electron beam power of close to 15KW at the bunch charge of 3.2nC. A robust Machine Protection System (MPS) capable of interrupting the beam within a macro-pulse and that interfaces well with new and existing controls system infrastructure has been developed to mitigate and analyze faults related to this relatively high damage potential. This paper describes the component layers of the MPS system, including a FPGA-based Permit Generator and Laser Pulse Controller, the Beam Loss Monitoring system design as well as the controls and related work done to date.  
poster icon Poster MOPGF145 [1.844 MB]  
WEPGF002 A Protocol for Streaming Large Messages with UDP 1
  • C.I. Briegel, R. Neswold, M.Z. Sliczniak
    Fermilab, Batavia, Illinois, USA
  Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
We have developed a protocol concatenating UDP datagrams to stream large messages. The datagrams can be sized to the optimual size of the receiver. The protocol provides acknowledged reception based on a sliding window concept. The implementation provides for up to 10 Mbyte messages and guarrantees complete delivery or a corresponding error. The protocol is implemented as a standalone messaging between two sockets and also within the context of Fermilab's ACNet protocol. Results of this implementation in vxWorks is analyzed.
poster icon Poster WEPGF002 [0.792 MB]  
WEPGF061 Beam Trail Tracking at Fermilab 1
  • D.J. Nicklaus, L.R. Carmichael, R. Neswold, Z.Y. Yuan
    Fermilab, Batavia, Illinois, USA
  This paper presents a system for acquiring and sorting data from select devices depending on the destination of each particular beam pulse in the Fermilab accelerator chain. The 15 Hz beam that begins in the Fermilab Linac can be directed to a variety of additional accelerators, beam lines, beam dumps, and experiments. We have implemented a data acquisition system that senses the destination of each pulse and reads the appropriate beam intensity devices so that profiles of the beam can be stored and analyzed for each type of beam trail. It is envisioned that this data will be utilized long term to identify trends in the performance of the accelerators.  
poster icon Poster WEPGF061 [2.194 MB]