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The possibility of using electron beam phase space manipulations to support a free-electron laser accelerator design optimization has motivated our research. An on-going program demonstrating the exchange of transverse horizontal and…

Accelerator Physics · Physics 2012-08-10 A. H. Lumpkin , A. S. Johnson , J. Ruan , J. Santucci , Y. -E. Sun , R. Thurman-Keup , H. Edwards

Recording changes in beam transverse positions re-ported by Beam Position Monitors (BPMs) in response to a beam deflection by an upstream dipole corrector (orbit response) is a powerful tool for analysis of accelerator optics and assisting…

Accelerator Physics · Physics 2025-09-18 A. Shemyakin , A. Pathak , R. Sharankova

The Muon to Electron Experiment (Mu2e) requires a uniform beam profile from the Muon Delivery Ring to meet their experimental needs. A specialized Spill Regulation System (SRS) has been developed to help achieve consistent spill uniformity.…

An overview is given of the methods and preliminary results from dedicated beam studies on three topics conducted over five days in July 2023. In the first study, the Fermilab Booster magnets were held constant at magnetic fields…

Accelerator Physics · Physics 2024-08-20 Jeffrey Eldred , Michael Balcewicz , Frank Schmidt , Benjamin Simons

The closed-off structure of the Fermilab Drift Tube Linac precludes a robust array of instrumentation from directly monitoring the H- beam that is accelerated from 750 keV to 116 MeV. To improve beam tuning and operational assessment of…

Accelerator Physics · Physics 2025-11-25 E. V. Chen , A. L. Saewert , R. V. Sharankova

The Fermilab Linac delivers 400MeV, 25mA H$^-$; beam. The longitudinal bunch parameters are reconstructed using a Bunch Shape Monitor (BSM) installed in the middle of the Linac. For that, the bunch length is measured as a function of the…

Accelerator Physics · Physics 2025-09-18 R. Sharankova , J-P. Carneiro , E. Chen , A. Shemyakin

In fast ramping synchrotrons like the Fermilab Booster the conventional methods of betatron tune evaluation from the turn-by-turn data may not work due to rapid changes of the tunes (sometimes in a course of a few dozens of turns) and a…

Accelerator Physics · Physics 2012-02-08 Y. Alexahin , E. Gianfelice-Wendt , W. Marsh

The Main Injector (MI) was commissioned using data acquisition systems developed for the Fermilab Main Ring in the 1980s. New VME-based instrumentation was commissioned in 2006 for beam loss monitors (BLM)[2], which provided a more…

Fermilab is developing a Proton Improvement Plan (PIP) to increase throughput of its proton source. The plan addresses hardware modifications to increase repetition rate and improve beam loss while ensuring viable operation of the proton…

The Fermilab Booster is being upgraded under the Proton Improvement Plan (PIP) to be capable of providing a proton flux of $2.25^{17}$ protons per hour. The intensity per cycle will remain at the present operational $4.3^{12}$ protons per…

Accelerator Physics · Physics 2015-11-05 K. Seiya , C. M. Bhat , D. E. Johnson , V. V. Kapin , W. A. Pellico , C. Y. Tan , R. J. Tesarek

We develop a configuration of radio-frequency (rf) cavities to dramatically improve the performance of slip-stacking. Slip-stacking is an accumulation technique used at Fermilab to nearly double proton intensity by maintaining two beams of…

Accelerator Physics · Physics 2016-11-23 Jeffrey Eldred , Robert Zwaska

The Fermilab Side-Coupled Linac accelerates H-beam from 116 MeV to 400 MeV through seven 805 MHz modules. Twelve wire scanners are present in the Side Coupled Linac and four are present in the transfer line between the Linac and the Booster…

Accelerator Physics · Physics 2024-09-05 E. Chen , R. Sharankova , A. Shemyakin , J. Stanton

We characterized the front-end electronics used to process high-frequency signals from low-gain avalanche diodes (LGADs) at the Fermilab Test Beam Facility. LGADs are silicon detectors employed for charged particle tracking, offering…

A beam position monitor (BPM) upgrade at the KEK Accelerator Test Facility (ATF) damping ring has been accomplished, carried out by a KEK/FNAL/SLAC collaboration under the umbrella of the global ILC R&D effort. The upgrade consists of a…

From 2005 through 2012, the Fermilab Main Injector provided intense beams of 120 GeV protons to produce neutrino beams and antiprotons. Hardware improvements in conjunction with improved diagnostics allowed the system to reach sustained…

Accelerator Physics · Physics 2013-02-01 Bruce C. Brown

The performance of scintillator counters with embedded wavelength-shifting fibers has been measured in the Fermilab Meson Test Beam Facility using 120 GeV protons. The counters were extruded with a titanium dioxide surface coating and two…

A new beam injection scheme is proposed for the Fermilab Booster to increase beam brightness. The beam is injected on the deceleration part of the sinusoidal magnetic ramp and capture is started immediately after the injection. During the…

Accelerator Physics · Physics 2015-04-28 C. M. Bhat

Ionization profile monitors (IPMs) are used in the Fermilab Main Injector (MI) to monitor injection lattice matching by measuring turn-by-turn sigmas at injection and to measure transverse emittance of the beam during the acceleration…

We have developed a dedicated front-end-electronics board for a high-pressure xenon gas time projection chamber for a neutrinoless double-beta decay search. The ionization signal is readout by detecting electroluminescence photons with…

Instrumentation and Detectors · Physics 2020-09-17 K. Z. Nakamura , S. Ban , A. K. Ichikawa , M. Ikeno , K. D. Nakamura , T. Nakaya , S. Obara , S. Tanaka , T. Uchida , M. Yoshida

For NOvA and future experiments requiring high intensity proton beams, Fermilab is in the process of upgrading the existing accelerator complex for increased proton production. One such improvement is to reduce the Main Injector cycle time,…

Accelerator Physics · Physics 2014-09-22 R. Madrak , D. Wildman