265 research outputs found
CW high intensity non-scaling FFAG proton drivers
Accelerators are playing increasingly important roles in basic science,
technology, and medicine including nuclear power, industrial irradiation,
material science, and neutrino production. Proton and light-ion accelerators in
particular have many research, energy and medical applications, providing one
of the most effective treatments for many types of cancer. Ultra high-intensity
and high-energy (GeV) proton drivers are a critical technology for
accelerator-driven sub-critical reactors (ADS) and many HEP programs (Muon
Collider). These high-intensity GeV-range proton drivers are particularly
challenging, encountering duty cycle and space-charge limits in the synchrotron
and machine size concerns in the weaker-focusing cyclotrons; a 10-20 MW proton
driver is not presently considered technically achievable with conventional
re-circulating accelerators. One, as-yet, unexplored re-circulating
accelerator, the Fixed-field Alternating Gradient, or FFAG, is an attractive
alternative to the cyclotron. Its strong focusing optics are expected to
mitigate space charge effects, and a recent innovation in design has coupled
stable tunes with isochronous orbits, making the FFAG capable of
fixed-frequency, CW acceleration, as in the classical cyclotron. This paper
reports on these new advances in FFAG accelerator technology and references
advanced modeling tools for fixed-field accelerators developed for and unique
to the code COSY INFINITY.Comment: 3 pp. Particle Accelerator, 24th Conference (PAC'11) 2011. 28 Mar - 1
Apr 2011. New York, US
The Ionization Profile Monitors in the Recycler Ring
The ionization profile monitors (IPMs) are used to measure the beam size in
synchrotrons. Both the Fermilab Recycler and Main Injector (MI) machines have
IPMs. However, they were not well understood enough to provide confidence in
their measurements. Accurately measuring beam size through the IPMs was crucial
to recognize the loss mechanisms for accelerators and to keep the beam loss to
a minimum. Thus, performing measurements with different parameters using the
IPMs led to a better analysis on how changes in conditions affect the beam
size. The IPM measurements are compared with that of multi-wires in the
upstream transfer line after applying corrections. The results were compared
with other diagnostics and the change in the beam size for different parameters
are presented in this paper.Comment: 14th International Particle Accelerator Conference (IPAC'23
ΠΠΈΠΊΡΠΎΡ ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ΅Ρ Π½ΠΈΠΊΠ° ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΠΏΠΎΠ΄ΠΆΠ΅Π»ΡΠ΄ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ ΠΈ ΠΏΠΎΡΠΊΠΈ Π² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ
ΠΠΠΠΠΠΠ£ΠΠΠ§ΠΠΠ― ΠΠΠΠΠΠ /Ρ
ΠΈΡΠΠΠ§ΠΠ /Ρ
ΠΈΡΠ’Π ΠΠΠ‘ΠΠΠΠΠ’ΠΠ¦ΠΠ―Π°Π»Π»ΠΎΠ³ΡΠ°ΡΡΡ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅Ρ
Π½ΠΈΠΊ
ΠΠΈΠΊΡΠΎΡ ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ΅Ρ Π½ΠΈΠΊΠ° ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΡΠ°Π½ΡΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΠΏΠΎΠ΄ΠΆΠ΅Π»ΡΠ΄ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ ΠΈ ΠΏΠΎΡΠΊΠΈ Π² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ
ΠΠΠΠΠΠΠ£ΠΠΠ§ΠΠΠ― ΠΠΠΠΠΠ /Ρ
ΠΈΡΠΠΠ§ΠΠ /Ρ
ΠΈΡΠ’Π ΠΠΠ‘ΠΠΠΠΠ’ΠΠ¦ΠΠ―Π°Π»Π»ΠΎΠ³ΡΠ°ΡΡΡ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅Ρ
Π½ΠΈΠΊ
NuMI Beam Monitoring Simulation and Data Analysis Status and Progress
With the Main Injector Neutrino Oscillation Search (MINOS) experiment decommissioned, muon and hadron monitors became an important diagnostic tool for the NuMI Off-axis v Appearance (NOvA) experiment at Fermilab to monitor the Neutrinos at the Main Injector (NuMI) beam. The goal of this study is to maintain the quality of the monitor signals and to establish correlations with the neutrino beam profile. And we carry out a systematic study of the response of the muon monitors to the changes in the parameters of the proton beam and lattice parameters. We report here on the progress of the beam data analysis and comparison with the simulation results
Interim Design Report
The International Design Study for the Neutrino Factory (the IDS-NF) was
established by the community at the ninth "International Workshop on Neutrino
Factories, super-beams, and beta- beams" which was held in Okayama in August
2007. The IDS-NF mandate is to deliver the Reference Design Report (RDR) for
the facility on the timescale of 2012/13. In addition, the mandate for the
study [3] requires an Interim Design Report to be delivered midway through the
project as a step on the way to the RDR. This document, the IDR, has two
functions: it marks the point in the IDS-NF at which the emphasis turns to the
engineering studies required to deliver the RDR and it documents baseline
concepts for the accelerator complex, the neutrino detectors, and the
instrumentation systems. The IDS-NF is, in essence, a site-independent study.
Example sites, CERN, FNAL, and RAL, have been identified to allow site-specific
issues to be addressed in the cost analysis that will be presented in the RDR.
The choice of example sites should not be interpreted as implying a preferred
choice of site for the facility
- β¦