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49 papers · 2 filters
Updates and Lessons Learned from NuMI Beamline at Fermilab
D. A. A. Wickremasinghe, K. Yonehara
The Neutrinos at the Main Injector (NuMI) beamline at Fermilab generates an intense muon neutrino beam for the NOvA (NuMI Off-axis Appearance) long-baseline neutrino experime…
Re-assembly and test of a COMB dipole magnet with STAR wires
V. V. Kashikhin, S. Cohan, J. DiMarco +21
Rare-Earth Barium Copper Oxide (REBCO) coated conductors are an attractive option for application in high field accelerator magnets due to their high critical field and the conveni…
Near-Infrared noise in intense electron bunches
Sergei Kladov, Sergei Nagaitsev, Alex H. Lumpkin +7
This article investigates electron bunch density fluctuations in the 1 - 10 wavelength range, focusing on their impact on coherent electron cooling (CEC) in hadron storage rin…
Cold Test Results of Pre-Production PIP-II SSR2 Cavities with High-Power Couplers in the Fermilab Spoke Test Cryostat
A. Sukhanov, C. Contreras-Martinez, C. Grimm +13
As part of the PIP-II project at Fermilab, a pre-production cryomodule featuring 325 MHz Single Spoke Resonator type 2 (SSR2) superconducting RF cavities is under construction. The…
Monochromatization interaction region optics design for direct s-channel Higgs production at FCC-ee
Z. Zhang, A. Faus-Golfe, A. Korsun +9
The FCC-ee offers the potential to measure the electron Yukawa coupling via direct s-channel Higgs production, , at a centre-of-mass (CM) energy of ~1…
Time Slicing of Neutrino Fluxes in Oscillation Experiments at Fermilab
Sudeshna Ganguly, Katsuya Yonehara, Chandrashekhara M Bhat +4
Long and short baseline neutrino oscillation experiments, such as DUNE, ANNIE, SBND, demand high precision in reducing systematic errors, particularly those related to neutrino-nuc…
Excellent performance of 650 MHz single-cell niobium cavity after electropolishing
V. Chouhan, D. Bice, A. Cravatta +6
Electropolishing process and cathodes have undergone modification and optimization for both low- and high-beta 650 MHz five-cell niobium cavities for PIP-II. Cavities treated with…
Beam Dynamics simulations for ERDC project -- SRF linac for industrial use
N. Solyak, I. Gonin, A. Saini +5
Compact conductively cooled SRF industrial linacs can provide unique parameters of the electron beam for industrial applications. (up to 10MeV, 1MW). For ERDC project we designed n…
Realizing Steady-State Microbunching with Optical Stochastic Crystallization
M. Wallbank, J. Jarvis
Optical Stochastic Cooling (OSC) is a state-of-the-art beam cooling technology first demonstrated in 2021 at the IOTA storage ring at Fermilab's FAST facility. A second phase of th…
Performance of PIP-II High-beta 650 Cryomodule After Transatlantic Shipping
J. Ozelis, M. Barba, J. Bernardini +27
After shipment to the Daresbury Lab and return to Fermilab, the prototype HB650 cryomodule underwent another phase of 2K RF testing to ascertain any performance issues that may hav…
Emittance Measurements with Wire Scanners in the Fermilab Side-coupled Linac
E. Chen, R. Sharankova, A. Shemyakin +1
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 pr…
Towards Agentic AI on Particle Accelerators
Antonin Sulc, Thorsten Hellert, Raimund Kammering +2
As particle accelerators grow in complexity, traditional control methods face increasing challenges in achieving optimal performance. This paper envisions a paradigm shift: a decen…
Final Cooling With Thick Wedges for a Muon Collider
D. Fu, A. Badea. K. Folan Di Petrillo, D. Neuffer +1
In the final cooling stages for a muon collider, the transverse emittances are reduced while the longitudinal emittance is allowed to increase. In previous studies, Final cooling u…
Conceptual Design of A 20 T Dipole Based on Hybrid REBCO/Nb3Sn Cos-theta Coil*
A. V. Zlobin
This paper presents a design concept of an HTS/LTS hybrid dipole with 50 mm aperture and 20 T nominal field based on a cos-theta coil and a cold iron yoke. The HTS part of magnet c…
PIP-II Linac Cryogenic Distribution System Design Challenges
T. Banaszkiewicz, M. Chorowski, P. Duda +4
The PIP-II linac Cryogenic Distribution System (CDS) is characterized by extremely small heat inflows and robust mechanical design. It consists of a Distribution Valve Box (DVB), I…
Results of High Order Modes Spectra Measurements in 1.3 GHz Cavities for LCLS-II
A. Lunin, T. Khabiboulline, A. Sukhanov +1
Fermilab recently completed production and testing of 1.3 GHz cryomodules for the LCLS-II project. Each cryomodule consists of eight TESLA-shaped superconducting elliptical cavitie…
Epics Deployment at Fermilab
P. Hanlet, M. Gonzalez, J. Diamond +1
Fermilab has traditionally not been an EPICS house; as such expertise in EPICS is limited and scattered. PIP-II will be using EPICS for its control system. When in operation, it wi…
Low-alpha Operation of the Iota Storage Ring
M. Wallbank, J. Jarvis
Operation with ultra-low momentum-compaction factor (alpha) is a desirable capability for many storage rings and synchrotron radiation sources. For example, low-alpha lattices are…
Quantitative description and correction of longitudinal drifts in the Fermilab linac
R. Sharankova, A. Shemyakin, S. Rego
The Fermi National Accelerator Laboratory (Fermilab) Linac accepts 750 keV H- ions from the front end and accelerates them to 400 MeV for injection into the Booster rapid cycling s…
Neutrino Program at Fermilab -- Enhancing proton beam power and accelerator infrastructure
Ganguly Sudeshna
The upcoming long baseline neutrino experiments aim to enhance proton beam power to multi-MW scale and utilize large-scale detectors to address the challenge of limited event stati…
What is Needed for BiSCO to Work in a Dipole Insert for 20 Tesla Hybrid Accelerator Magnets
E. Barzi
A major focus of the global HEP community is on high field superconducting magnets made of High Temperature Superconductors (HTS) for future Energy Frontier Programs. Within the U.…
Ionization Profile Monitors for the IOTA Proton Beam
H. Piekarz, A. Romanov, R. Thurman-Keup +1
Ionization profile monitors (IPMs) are widely used in accelerators for non-destructive and fast diagnostics of high energy particle beams. Two such monitors - one vertical and one…
Observation of a Synchro-betatron Instability in Fermilab Booster
M. Balcewicz, J. Eldred
In preparation for PIP-II, there has been interest in running the Fermilab Booster at a higher current more indicative of the PIP-II era operation. In July 2023, an experiment was…
Characterization of Additive Manufacturing Materials for String Assembly in Cleanroom
Jacopo Bernardini, Mattia Parise, Donato Passarelli
Beamline components, such as superconducting radio frequency cavities and focusing lenses, need to be assembled together in a string while in a cleanroom environment. The present c…