Michael Martens
(Fermilab)
27/07/2009, 14:00
Accelerator Physics
This is a talk on the challenges of beamlines and targeting for neutrino production using multi-megawatt beamlines. Discussed are lessons from NuMI operations at Fermilab and concerns related to future and proposed beamlines such as NOvA, CNGS, JPARC, and LBNE.
Dr
Linda Coney
(UC Riverside)
27/07/2009, 14:30
Accelerator Physics
Muon ionization cooling provides the only practical solution to prepare high brilliance beams necessary for a neutrino factory or muon colliders.
The muon ionization cooling experiment (MICE)* is under development at the Rutherford Appleton Laboratory (UK). It comprises a dedicated beam line to generate a range of input emittance and momentum, with time-of-flight and Cherenkov detectors to...
Dr
Dazhang Huang
(Illinois Institute of Technology)
27/07/2009, 15:00
Accelerator Physics
In the process of ionization cooling, as a charged particle passes through an absorber, it induces a wake field by polarizing the absorber medium. If the beam density is sufficiently high (as may be the case in certain aggressive cooling approaches), this could result in beam-intensity-dependent effects, which are not taken into account in past and current studies. To understand this effect...
Mary Convery
(Fermilab)
27/07/2009, 15:30
Accelerator Physics
We present the strategy which has been used recently to optimize
integrated luminosity at the Fermilab Tevatron proton-antiproton
collider. We use a relatively simple model where we keep the proton
intensity fixed, use parameters from fits to the luminosity decay of
recent stores as a function of initial antiproton intensity (stash
size), and vary the stash size to optimize the integrated...
Alexander Shemyakin
(Fermilab)
27/07/2009, 16:30
Accelerator Physics
A permanent – magnet, 3.3 km 8 GeV Recycler ring is used to accumulate antiprotons and prepare them for Tevatron shots. Two cooling systems, stochastic and electron, allows increasing of the antiproton phase density by a factor of ~ 50 and storing up to 51012 antiprotons with the storage efficiency above 90%. The paper will describe the status of the Recycler ring and its operation.
Dr
Jean-Luc Vay
(Lawrence Berkeley National Laboratory)
27/07/2009, 17:00
Accelerator Physics
It was shown recently that it can be computationally advantageous to perform computer simulations in a Lorentz boosted frame for a certain class of relativistic systems such as: free electron laser, laser-plasma accelerator, and particle beams interacting with electron clouds [1], and reduction by orders of magnitude in computer simulation run times using methods based on first-principles...
Prof.
Daniel Kaplan
(Illinois Institute of Technology)
27/07/2009, 17:30
Accelerator Physics
Muon colliders and neutrino factories are attractive options for future facilities aimed at achieving the highest lepton-antilepton collision energies and precision measurements of parameters of the neutrino mixing matrix. The performance and cost of these depend sensitively on how well a beam of muons can be cooled. Recent progress in muon cooling design studies and prototype tests nourishes...
Dr
Mary Anne Cummings
(Muons, Inc.)
27/07/2009, 18:00
Accelerator Physics
MANX is a six-dimensional muon ionization cooling demonstration experiment based on the concept of a helical cooling channel in which a beam of muons loses energy in a continuous helium or hydrogen absorber while passing through a special superconducting magnet called a helical solenoid. The goals of the experiment include tests of the theory of the helical cooling channel and the helical...