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    Y. Giboudot

    There is a generalized perception that the availability of suitable particle accelerators installed in hospitals, as neutron sources, may be crucial for the advancement of Boron Neutron Capture Therapy (BNCT). Progress on an ongoing... more
    There is a generalized perception that the availability of suitable particle accelerators installed in hospitals, as neutron sources, may be crucial for the advancement of Boron Neutron Capture Therapy (BNCT). Progress on an ongoing project to develop a Tandem-ElectroStatic-Quadrupole (TESQ) accelerator for Accelerator-Based (AB)-BNCT is described here. The project goal is a machine capable of delivering 30 mA of 2.5
    ABSTRACT
    The Non Scaling Fixed Field Alternating Gradient (NSFFAG) EMMA accelerator has a purely linear lattice, and the crossing of resonances during acceleration is therefore a key characteristic of the beam dynamics. An accurate measurement of... more
    The Non Scaling Fixed Field Alternating Gradient (NSFFAG) EMMA accelerator has a purely linear lattice, and the crossing of resonances during acceleration is therefore a key characteristic of the beam dynamics. An accurate measurement of the tune is essential for a full understanding of the machine behaviour. However, commonly used measurement techniques require the beam to perform a large number
    De­scribed in the paper are sys­tem­at­ic pro­ce­dures to in­ject and keep the beam on the ref­er­ence tra­jec­to­ry for a fixed en­er­gy, as ap­plied to the EMMA non scal­ing FFAG ac­cel­er­a­tor. The no­tion of ac­cel­er­at­ed or­bits... more
    De­scribed in the paper are sys­tem­at­ic pro­ce­dures to in­ject and keep the beam on the ref­er­ence tra­jec­to­ry for a fixed en­er­gy, as ap­plied to the EMMA non scal­ing FFAG ac­cel­er­a­tor. The no­tion of ac­cel­er­at­ed or­bits in FFAG ac­cel­er­a­tors has been in­tro­duced and some of their prop­er­ties have been stud­ies in de­tail
    Page 1. Use of transfer maps for modeling beam dynamics in a nonscaling fixed-field alternating-gradient accelerator Y. Giboudot University of Brunel, Uxbridge, United Kingdom A. Wolski* University of Liverpool, Liverpool, United ...
    EMMA (Electron Machine with Many Applications) is a prototype non-scaling electron FFAG hosted at Daresbury Laboratory [1,2]. NS-FFAGs related to EMMA have an unprecedented potential for medical accelerators for carbon and proton hadron... more
    EMMA (Electron Machine with Many Applications) is a prototype non-scaling electron FFAG hosted at Daresbury Laboratory [1,2]. NS-FFAGs related to EMMA have an unprecedented potential for medical accelerators for carbon and proton hadron therapy. They could also be used as the accelerator for a sub-critical reactor. We summarise the design and commissioning of both the injection and extraction lines for this machine.
    Research Interests:
    Research Interests:
    The Electron Model for Many Applications FFAG (EMMA) has been the object of extensive beam dynamics simulations during its design and construction phases, using the ray-tracing code Zgoubi, which has been retained as the on-line... more
    The Electron Model for Many Applications FFAG (EMMA) has been the object of extensive beam dynamics simulations during its design and construction phases, using the ray-tracing code Zgoubi, which has been retained as the on-line simulation engine. On the other hand EMMA commissioning requires further advanced beam dynamics studies as well as on-line and off-line simulations. This contribution reports on some aspects of the studies so performed during the last months using Zgoubi.
    In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are... more
    In a fixed-field alternating-gradient (FFAG) accelerator, eliminating pulsed magnet operation permits rapid acceleration to synchrotron energies, but with a much higher beam-pulse repetition rate. Conceived in the 1950s, FFAGs are enjoying renewed interest, fuelled by the need to rapidly accelerate unstable muons for future high-energy physics colliders. Until now a ‘scaling’ principle has been applied to avoid beam blow-up and
    We describe the present status of an ongoing project to develop a Tandem-ElectroStatic-Quadrupole (TESQ) accelerator facility for Accelerator-Based (AB)-BNCT. The project final goal is a machine capable of delivering 30 mA of 2.4 MeV... more
    We describe the present status of an ongoing project to develop a Tandem-ElectroStatic-Quadrupole (TESQ) accelerator facility for Accelerator-Based (AB)-BNCT. The project final goal is a machine capable of delivering 30 mA of 2.4 MeV protons to be used in conjunction with a neutron production target based on the (7)Li(p,n)(7)Be reaction. The machine currently being constructed is a folded TESQ with a high-voltage terminal at 0.6 MV. We report here on the progress achieved in a number of different areas.