171 citations · 778 across the 42 of their papers we have counts for
42 papers
Test results of the LQXFA/B02 and LQXFA/B03 cryo-assemblies for the High Luminosity LHC upgrade
G. Chlachidze, G. Ambrosio, M. Anerella +13
The US High-Luminosity LHC Accelerator Upgrade Project (AUP) is responsible for delivering cryo-assemblies for the Q1/Q3 quadrupole optical components of the High Luminosity LHC up…
Oakridge PPU Magnets: Results and Measurements
J. DiMarco, D. Harding, V. Kashikhin +8
The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) is being upgraded from 1.0 GeV to 1.3 GeV (or 1.4 to 2.8 MW). Several water-cooled magnets have been upg…
The 2025 Roadmaps for the US Magnet Development Program
Lance Cooley, Paolo Ferracin, Steve Gourlay +21
The US Physics community completed the Snowmass planning process in 2022, culminating in the HEPAP Particle Physics Project Prioritization Panel (P5) publishing its summary report…
Application of Flex-QA Arrays in HTS Magnet Testing
Stoyan Stoynev, Vadim V. Kashikhin, Sean Cohan +6
Flexible PCB quench antennas have been very useful in providing high-quality high-resolution data in low temperature superconducting magnet tests. Similar multi-sensor arrays have…
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…
First results of AUP Nb3Sn quadrupole horizontal tests
M. Baldini, G. Ambrosio, G. Apollinari +48
The Large Hadron Collider will soon undergo an upgrade to increase its luminosity by a factor of ~10 [1]. A crucial part of this upgrade will be replacement of the NbTi focusing ma…
Quench Performance of the First Pre-series AUP Cryo-assembly
M. Baldini, G. Chlachidze, G. Apollinari +9
The High Luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN will include eight cryo-assemblies that are expected to be fabricated and delivered to CERN by the US HL-L…
Effect of CLIQ on training of HL-LHC quadrupole magnets
S. Stoynev, G. Ambrosio, K. Amm +6
The high-luminosity LHC upgrade requires stronger than LHC low-beta quadrupole magnets to reach the luminosity goals of the project. The project is well advanced and HL-LHC quadrup…
Magnetic Measurements and Alignment Results of LQXFA/B Cold Mass Assemblies at Fermilab
J. DiMarco, P. Akella, G. Ambrosio +10
MQXFA production series quadrupole magnets are being built for the Hi-Lumi (HL) LHC upgrade by the US Accelerator Upgrade Project (US-HL-LHC AUP). These magnets are being placed in…
First observation and study of the decay
2 Collaboration, J. R. Batley, G. Kalmus +121
The NA48/2 experiment at CERN reports the first observation of the decay based on a sample of 2437 candidates with 15% background contam…
Commissioning, Performance, and Effect of the Quench Current-boosting Device on a Dedicated Superconducting Magnet
S. Stoynev, M. Baldini, S. Feher
Superconducting magnet training is one of the accelerator related issues attracting attention due to significant operational costs and time budget associated to it. It is especiall…
Challenges and Lessons Learned from fabrication, testing and analysis of eight MQXFA Low Beta Quadrupole magnets for HL-LHC
G. Ambrosio, K. Amm, M. Anerella +55
By the end of October 2022, the US HL-LHC Accelerator Upgrade Project (AUP) had completed fabrication of ten MQXFA magnets and tested eight of them. The MQXFA magnets are the low b…
Assessment and Performance of Flexible Quench Antenna Array Diagnostics for Superconducting Magnets
Stoyan Stoynev, Joe DiMarco
FNAL has been developing multiple versions of flexible quench antennas (flex-QA), including some specially optimized for high sensitivity and/or high resolution, to characterize qu…
A Strategic Approach to Advance Magnet Technology for Next Generation Colliders
G. Ambrosio, K. Amm, M. Anerella +74
Colliders are built on a foundation of superconducting magnet technology that provides strong dipole magnets to maintain the beam orbit and strong focusing magnets to enable the ex…
Advancing Superconducting Magnet Diagnostics for Future Colliders
M. Marchevsky, R. Teyber, G. S. Lee +10
Future colliders will operate at increasingly high magnetic fields pushing limits of electromagnetic and mechanical stress on the conductor [1]. Understanding factors affecting sup…
White Paper on Leading-Edge technology And Feasibility-directed (LEAF) Program aimed at readiness demonstration for Energy Frontier Circular Colliders by the next decade
G. Ambrosio, G. Apollinari, M. Baldini +39
In this White Paper for the Snowmass 2021 Process, we propose the establishment of a magnet Leading-Edge technology And Feasibility-directed Program (LEAF Program) to achieve readi…
Test samples and infrastructure for accelerator magnet developments
Stoyan Stoynev
LHC still does not operate at full energy due to training features in magnets. Higher field practical superconductors (Nb3Sn) show much worse training behavior than NbTi. Most magn…
Development and demonstration of next generation technology for Nb_3Sn accelerator magnets with lower cost, improved performance uniformity, and higher operating point in the 12-14 T range
Giorgio Ambrosio, Giorgio Apollinari, Vito Lombardo +7
The scope of the proposal outlined in this white paper is the development and demonstration of the technology needed for next generation of Nb_3Sn accelerator magnets in the 12-14…
MDPCT1 quench data and performance analysis
Stoyan Emilov Stoynev, Maria Baldini, Emanuela Z. Barzi +6
MDPCT1 is a four-layer cos-theta Nb3Sn dipole demonstrator developed and tested at FNAL in the framework of the U.S. Magnet Development Program. The magnet reached record fields fo…
Magnetic Measurements of HL-LHC AUP Cryo-Assemblies at Fermilab
J. DiMarco, P. Akella, G. Ambrosio +13
LQXFA/B production series cryogenic assemblies are being built for the LHC upgrade by the HL-LHC Accelerator Upgrade Project (AUP). These contain a pair of MQXFA quadrupole magnets…
Searches for Lepton Number Violation and Resonances in Decays
2 collaboration
The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003--2004. A new upper limit on the rate of the le…
ChPT tests at the NA48 and NA62 experiments at CERN
NA48/2, NA62 Collaborations, : +159
The NA48/2 Collaboration at CERN has accumulated unprecedented statistics of rare kaon decays in the Ke4 modes: Ke4(+-) () and Ke4(00) ($K^\pm \to π^0 π^…
Extended use of superconducting magnets for bio-medical development
Stoyan Stoynev
Magnetic fields interact with biological cells affecting them in variety of ways which are usually hard to predict. Among them, it was observed that strong fields can align dividin…
Recent NA48/2 and NA62 results
F. Ambrosino, A. Antonelli, G. Anzivino +156
The NA48/2 Collaboration at CERN has accumulated and analysed unprecedented statistics of rare kaon decays in the modes: () and $K_…