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Showing 2015 · physics.acc-phShow all

60 papers · 2 filters

physics.acc-ph2015★ 5 cited

The Conversion of CESR to Operate as the Test Accelerator, CesrTA, Part 3: Electron Cloud Diagnostics

M. G. Billing, J. V. Conway, J. A. Crittendan +7

Cornell's electron/positron storage ring (CESR) was modified over a series of accelerator shutdowns beginning in May 2008, which substantially improves its capability for research…

physics.acc-ph2015

Theoretical and Numerical Analyses of a Slit-Masked Chicane for Modulated Bunch Generation

Xiaofang Zhu, Daniel R Broemmelsiek, Young-Min Shin

Density modulations on electron beams can improve machine performance of beam-driven accelerators and FELs with resonance beam-wave coupling. The beam modulation is studied with a…

physics.acc-ph2015

Hamamatsu PMT R7056 Study for the Extinction Monitoring System of the Mu2e Experiment at Fermilab

S. Boi, A. Dyshkant, D. Hedin +3

The Mu2e experiment at Fermilab proposes to search for the coherent neutrino-less conversion of muons to electrons in the presence of a nucleus. The experimental signature for an a…

physics.acc-ph2015

Fermilab Muon Campus g-2 Cryogenic Distribution Remote Control System

L. Pei, J. Theilacker, A. Klebaner +2

The Muon Campus (MC) is able to measure Muon g-2 with high precision and comparing its value to the theoretical prediction. The MC has four 300 KW screw compressors and four liquid…

physics.acc-ph2015★ 4 cited

An Overview of the New Test Stand for H- Ion Sources at FNAL

A. Sosa, D. S. Bollinger, K. Duel +3

A new test stand at FNAL is being constructed to carry out experiments to develop and upgrade the present magnetron-type sources of H- ions of up to 80 mA at 35 keV in the context…

physics.acc-ph2015★ 3 cited

Initial experimental results of a machine learning-based temperature control system for an RF gun

A. L. Edelen, S. G. Biedron, S. V. Milton +8

Colorado State University (CSU) and Fermi National Accelerator Laboratory (Fermilab) have been developing a control system to regulate the resonant frequency of an RF electron gun.…

physics.acc-ph2015★ 2 cited

Beam studies for the Proton Improvement Plan (PIP) -- reducing beam loss at the Fermilab Booster

K. Seiya, C. M. Bhat, D. E. Johnson +4

The Fermilab Booster is being upgraded under the Proton Improvement Plan (PIP) to be capable of providing a proton flux of protons per hour. The intensity per cycle wil…

physics.acc-ph2015★ 2 cited

Cost consideration and a possible construction timeline of the CEPC-SPPC

W. Chou

This paper discusses the cost consideration and a possible construction timeline of the CEPC-SPPC study based on a preliminary conceptual design that is being carried out at the In…

physics.acc-ph2015

Longitudinal phase-space coating of beam in a storage ring

C. M. Bhat

In this Letter, I report on a novel scheme for beam stacking without any beam emittance dilution using a barrier rf system in synchrotrons. The general principle of the scheme call…

physics.acc-ph2015

Early Beam Injection Scheme for the Fermilab Booster: A Path for Intensity Upgrade

C. M. Bhat

Over the past decade, Fermilab has focused efforts on the intensity frontier physics and is committed to increase the average beam power delivered to the neutrino and muon programs…

physics.acc-ph2015★ 5 cited

Compact Low-Voltage, High-Power, Multi-beam Klystron for ILC: Initial Test Results

V. E. Teryaev, S. V. Shchelkunov, S. Yu. Kazakov +6

Initial test results of an L-band multi-beam klystron with parameters relevant for ILC are presented. The chief distinction of this tube from MBKs already developed for ILC is its…

physics.acc-ph2015★ 5 cited

Simulation of a cascaded longitudinal space charge amplifier for broadband radiation production using a superconducting linac

A. Halavanau, P. Piot

Longitudinal space charge (LSC) effects are generally considered harmful in free-electron lasers as they can seed unfavorable energy modulations that can result in density modulati…

physics.acc-ph2015★ 81 cited

Efficient expulsion of magnetic flux in superconducting RF cavities for high applications

S. Posen, A. Grassellino, A. Romanenko +5

Even when cooled through its transition temperature in the presence of an external magnetic field, a superconductor can expel nearly all external magnetic flux. This Letter present…

physics.acc-ph2015★ 287 cited

The NuMI Neutrino Beam

P. Adamson, K. Anderson, M. Andrews +187

This paper describes the hardware and operations of the Neutrinos at the Main Injector (NuMI) beam at Fermilab. It elaborates on the design considerations for the beam as a whole a…

physics.acc-ph2015★ 3 cited

Beam Tests of Beampipe Coatings for Electron Cloud Mitigation in Fermilab Main Injector

Michael Backfish, Jeffrey Eldred, Cheng Yang Tan +1

Electron cloud beam instabilities are an important consideration in virtually all high-energy particle accelerators and could pose a formidable challenge to forthcoming high-intens…

physics.acc-ph2015

Energy deposition and radiological studies for the LBNF Hadron Absorber

I. L. Rakhno, N. V. Mokhov, I. S. Tropin +1

Results of detailed Monte Carlo energy deposition and radiological studies performed for the LBNF hadron absorber with the MARS15 code are described. The model of the entire facili…

physics.acc-ph2015

Modeling proton- and light ion-induced reactions at low energies in the MARS15 code

I. L. Rakhno, N. V. Mokhov, K. K. Gudima

An implementation of both ALICE code and TENDL evaluated nuclear data library in order to describe nuclear reactions induced by low-energy projectiles in the Monte Carlo code MARS1…

physics.acc-ph2015

Numerical analysis of parasitic crossing compensation with wires in DAΦNE

A. Valishev, D. Shatilov, C. Milardi +1

Current bearing wire compensators were successfully used in the 2005-2006 run of the DAΦNE collider to mitigate the detrimental effects of parasitic beam-beam interactions. A marke…

physics.acc-ph2015★ 1 cited

Spectral Brilliance of Parametric X-rays at the FAST facility

Tanaji Sen, Todd Seiss

We discuss the generation of parametric X-rays in the new photoinjector at the FAST (Fermilab Accelerator Science and Technology) facility in Fermilab. These experiments will be co…

physics.acc-ph2015★ 8 cited

FCC-ee: Energy calibration

M. Koratzinos, A. Blondel, E. Gianfelice-Wendt +1

The FCC-ee aims to improve on electroweak precision measurements, with goals of 100 keV on the Z mass and width, and a fraction of MeV on the W mass. Compared to LEP, this implies…

physics.acc-ph2015★ 2 cited

Simulation of Crab Waist Collisions In DAΦNE With KLOE-2 Interaction Region

Mikhail Zobov, Alexander Valishev, Dmitry Shatilov +4

After the successful completion of the SIDDHARTA experiment run with crab waist collisions, the electron- positron collider DAΦNE has started routine operations for the KLOE-2 dete…

physics.acc-ph2015★ 2 cited

Single bunch transverse instability in a circular accelerator with chromaticity and space charge

V. Balbekov

The transverse instability of a bunch in a circular accelerator is elaborated in this paper. A new tree-modes model is proposed and developed to describe the most unstable modes of…

physics.acc-ph2015★ 45 cited

Tailored electron bunches with smooth current profiles for enhanced transformer ratios in beam-driven acceleration

Francois Lemery, Philippe Piot

Collinear high-gradient beam-driven wakefield methods for charged-particle acceleration could be critical to the realization of compact, cost-efficient, accelerat…

physics.acc-ph2015★ 3 cited

Final Muon Emittance Exchange in Vacuum for a Collider

Don Summers, John Acosta, Lucien Cremaldi +5

We outline a plan for final muon ionization cooling with quadrupole doublets focusing onto short absorbers followed by emittance exchange in vacuum to achieve the small transverse…