Generation of multiple bipolar voltage pulses for a phase rotation LIA
In the year 2000, a design concept of a Neutrino Factory based on Muon Storage Ring was studied at FNAL. To treat high energy spread of muons that come out of a target and decay channel and are to be accelerated before they go into the storage ring, a phase rotating scheme using a long-pulse accelerating system has been proposed. In this system the accelerating voltage is to be shaped to correct the energy spread. To implement this approach, the pulse power system has been suggested that allows forming a bipolar accelerating voltage pulse with the predefined shape. This report addresses some issues of the pulse shape optimization and describes main features of the accelerating system comprising an accelerating structure similar to that of a linear induction accelerator (LIA) and a pulser that drives it.
Pulsed power system of linear induction accelerator for FNAL Neutrino Factory
In the year 2000, a feasibility study of a Neutrino Factory (NF) was conducted at FNAL. As part of NF drift channel, a phase rotation scheme involving a long-pulse accelerating system was suggested. This system should provide a voltage pulse that would correct charged particle energy spread. To implement this approach, a pulsed power system has been suggested that allowed forming a bipolar accelerating voltage pulse with predefined pulse shape. This report summarizes the main features of the system that is to drive an accelerating structure similar to that of a linear induction accelerator.
Proposed beam diagnostics instrumentation for the LANSCE refurbishment project
Presently, the Los Alamos National Laboratory is in the process of planning a refurbishment of various subsystems within its Los Alamos Neutron Science Center accelerator facility. A part of this LANSCE facility refurbishment will include some replacement of and improvement to existing older beam-diagnostics instrumentation. While plans are still being discussed, some instrumentation that is under improvement or replacement consideration are beam phase and position measurements within the 805-MHz side-coupled cavity linac, slow wire profile measurements, typically known as wire scanners, and possibly additional installation of fast ionization-chamber loss monitors. This paper will briefly describe the requirements for these beam measurements, what we have done thus far to answer these requirements, and some of the technical issues related to the implementation of the instrumentation.