Left and Right, Matter and Antimatter

Proton therapy and FFAGs

Systematic Errors

DAEdALUS (Poster)

Measurement of δ, the CP violating phase in the neutrino mixing matrix, is a crucial next step in our understanding of the universe. It appears as a ± sinδ term in the expression for the rate of oscillation from ν mu to νe : CP violation makes the rate for νmu to νe transitions different from 𝜈 ̅mu to 𝜈 ̅ e . δ can be determined by measuring either of these rates: DAEδALUS (Decay At rest Experiment for δCP studies At the Laboratory for Underground Science) proposes to use the second. The oscillation depends on L/E, and we maintain strict control of E by using decay-at-rest 𝜋^+ mesons which provide a source of muon antineutrinos up to 53 MeV, with very low electron antineutrino contamination.
For a good measurement one needs three values of L corresponding to 0, π/4 and π/2 of an oscillation. The near measurement establishes the total rate; the medium one the oscillation wavelength, and the far one, at the oscillation peak, the amplitude.
Rather than building a source and three detectors, we propose a single detector, shared with LBNE, a large Gadolinium loaded water Cerenkov at the underground DUSEL facility, and, at different distances, three sources from different accelerators. These machines need to deliver protons with an energy of order 1 GeV, and to run at several Megawatts. The requirements are similar to those of proposed ADSR systems, and there are opportunities for synergies in their development. We outline the technical challenges of producing such high currents, with the proposed possible solutions. These include stacked cyclotrons, the MultiMegawatt cyclotron, the Compact Superconducting Cyclotron, and the FFAG. We discuss the timescale for possible results, and how they would complement those of LBNE.

Antimatter

Accelerators and Huddersfield University

We discussthe many applications of accelerators, the science and engineering needed to build them, and plans to set up the Huddersfield International Institute for Accelerator Applications

Novel Accelerator Drivers for ADSR systems

The development and deployment of commercially viable and reliable accelerator driven subcritical reactor (ADSR) systems is hampered by the high cost and imperfect reliability of existing high power (5-10MW) proton accelerator systems.

The RCUK/EPSRC/STFC funded CONFORM project therefore developed an entirely novel type of accelerator, the non-scaling Fixed Field Alternating Gradient Accelerator, or ns-FFAG, the principles of which will be explained. An ns-FFAG can be significantly more compact and therefore cheaper than the alternatives, and their relative simplicity can provide reliability.

However no ns-FFAG accelerator has ever been built – until now. CONFORM has recently completed the construction of he world’s first ns-FFAG accelerator, EMMA, at the Daresbury Laboratory. In the last two weeks EMMA has demonstrated that the ns-FFAG concept works, by accelerating an electron beam to 18MeV.

The implications of this demonstration of the ns-FFAG principle for the design of ADSR systems will be discussed.

Fundamentals of Probability and Statistics for Particle Physics

Accelerator Driven Subcritical Reactors

The nsFFAG and its applications

Masterclasses: how it all began