Mohammad Eshraqi
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View article: Classification of electron and muon neutrino events for the ESSνSB near water Cherenkov detector using Graph Neural Networks
Classification of electron and muon neutrino events for the ESSνSB near water Cherenkov detector using Graph Neural Networks Open
In the effort to obtain a precise measurement of leptonic CP-violation with the ESSνSB experiment, accurate and fast reconstruction of detector events plays a pivotal role. In this work, we examine the possibility of replacing the currentl…
View article: Study of nonstandard interactions mediated by a scalar field at the ESSnuSB experiment
Study of nonstandard interactions mediated by a scalar field at the ESSnuSB experiment Open
In this paper, we study scalar mediator induced nonstandard interactions (SNSIs) in the context of the ESSnuSB experiment. In particular, we study the capability of ESSnuSB to put bounds on the SNSI parameters and also study the impact of …
View article: ESSnuSB at ESS
ESSnuSB at ESS Open
Plenary Talk presented at the XX International Workshop on Neutrino Telescopes - Venice 23-27 October 2023 Abstract: The talk presents, after an introduction recalling the ESSnuSB Conceptual Design Report published in November 2022, the tw…
View article: Future ESS upgrade to Medium Pulse Length – What are the technical challenges for the accelerator and target?
Future ESS upgrade to Medium Pulse Length – What are the technical challenges for the accelerator and target? Open
A compression of the ESS proton pulse from the present 2.86 milliseconds to a medium pulse length of a few tens of microseconds which is better matched to the moderator time-constant of thermal neutrons would considerably boost the perform…
View article: Study of non-standard interaction mediated by a scalar field at ESSnuSB experiment
Study of non-standard interaction mediated by a scalar field at ESSnuSB experiment Open
In this paper we study non-standard interactions mediated by a scalar field (SNSI) in the context of ESSnuSB experiment. In particular we study the capability of ESSnuSB to put bounds on the SNSI parameters and also study the impact of SNS…
View article: European spallation source
European spallation source Open
The European Spallation Source (ESS) is a 5 MW, 2.5 GeV long pulse proton linac, to be built and commissioned in Lund, Sweden. The Accelerator Design Update (ADU) project phase is under way, to be completed at the end of 2012 by the delive…
View article: The European Spallation Source neutrino super-beam conceptual design report
The European Spallation Source neutrino super-beam conceptual design report Open
A design study, named $${\text {ESS}}\nu {\text {SB}}$$ for European Spallation Source neutrino Super Beam, has been carried out during the years 2018–2022 of how the 5 MW proton linear accelerator of the European Spallation Source under …
View article: First Beam Matching and Transmission Studies on the ESS RFQ
First Beam Matching and Transmission Studies on the ESS RFQ Open
The European Spallation Source will be driven by a 5 MW linear accelerator, producing 2.86 ms long proton beam pulses with a peak current of 62.5 mA at 14 Hz. Following the source commissioning in 2018 and 2019, the RFQ was successfully co…
View article: Updated physics performance of the ESSnuSB experiment
Updated physics performance of the ESSnuSB experiment Open
In this paper, we present the physics performance of the ESSnuSB experiment\nin the standard three flavor scenario using the updated neutrino flux\ncalculated specifically for the ESSnuSB configuration and updated migration\nmatrices for t…
View article: ESSnuSB Linac and Transfer Line: Lattice Design and Error Studies
ESSnuSB Linac and Transfer Line: Lattice Design and Error Studies Open
The ESS neutrino superbeam (ESSnuSB) project is being studied as an upgrade to the European Spallation Source (ESS). This proposed upgrade consists of adding an H⁻ source to the existing beamline in order to send H⁻ pulses in between proto…
View article: ESS Proton Beam Trajectory Correction
ESS Proton Beam Trajectory Correction Open
The proton linac of the European Spallation Source (ESS) is under construction in Lund, Sweden. Beam trajectory correction is essential to mitigate the effect of accelerator element misalignment, constituting the first step to minimise bea…
View article: Position-based cavity tuning
Position-based cavity tuning Open
Knowledge of the longitudinal beam parameters is important for understanding beam dynamics in any machine. In a linear accelerator (linac), to guarantee a stable motion in the longitudinal plane, the settings for the radio frequency caviti…
View article: Design of the Transferline to the ESS Target and Beam Dump at Reduced Beam Energy
Design of the Transferline to the ESS Target and Beam Dump at Reduced Beam Energy Open
The European Spallation Source (ESS) linac transfer-lines to the target and beam dump are designed for the 2 GeV beam energy. The commissioning and operation of the accelerator will start at a reduced energy of 571 MeV with the high beta p…
View article: Status of ESS Linac Upgrade Studies for ESSnuSB
Status of ESS Linac Upgrade Studies for ESSnuSB Open
The European Spallation Source (ESS), currently under construction in Lund, Sweden, is the world’s most powerful neutron spallation source, with an average power of 5 MW at 2.0 GeV. In the ESS neutrino Super Beam Project (ESSnuSB) it is pr…
View article: Future High Power Proton Drivers for Neutrino Beams
Future High Power Proton Drivers for Neutrino Beams Open
Over the last two decades, significant efforts were made through several international studies to identify and develop technical solutions for potential Neutrino Factories and Superbeam Facilities. With many questions now settled, as well …
View article: Status of the ESSnuSB Accumulator Design
Status of the ESSnuSB Accumulator Design Open
The 2.0 GeV, 5 MW proton linac for the European Spallation Source, ESS, will have the capacity to accelerate additional pulses and send them to a neutrino target, providing an excellent opportunity to produce an unprecedented high performa…
View article: First Results of Beam Commissioning on the ESS Site for the Ion Source and Low Energy Beam Transport
First Results of Beam Commissioning on the ESS Site for the Ion Source and Low Energy Beam Transport Open
The European Spallation Source (ESS), currently under construction in Lund, Sweden, will be a spallation neutron source driven by a proton linac of an unprecedented 5 MW beam power. Such a high power requires its ion source (IS) to produce…
View article: Field Control Challenges for Different LINAC Types
Field Control Challenges for Different LINAC Types Open
Linacs for free-electron lasers typically require cavity field stabilities of 0.01\% and 0.01 degree, while the requirements for high-intensity proton linacs are on the order of 0.1–1\% and 0.1–1 degrees. From these numbers it is easy to b…
View article: Beam Dynamics Simulation with an Updated Model for the ESS Ion Source and Low Energy Beam Transport
Beam Dynamics Simulation with an Updated Model for the ESS Ion Source and Low Energy Beam Transport Open
Beam dynamics simulation of the ion source (IS) and low energy beam transport (LEBT) of the European Spallation Source (ESS) Linac is conducted with TraceWin and IBSimu code. TraceWin allows multi-particle tracking based on a particle-in-c…
View article: ESS Commissioning Plans
ESS Commissioning Plans Open
The ESS linac is currently under construction in Lund, Sweden, and once completed it will deliver an unprecedented 5 MW of average power. The ion source and LEBT commissioning starts in 2018 and will continue with the RFQ, MEBT and the fir…
View article: Preparation Towards the Ess Linac Ion Source and Lebt Beam Commissioning on Ess Site
Preparation Towards the Ess Linac Ion Source and Lebt Beam Commissioning on Ess Site Open
Beam commissioning of the proton linac of the European Spallation Source begin in summer, 2018, from the ion source (IS) and low energy beam transport (LEBT), and continues in stages until 2022, when the first beam is sent to its spallatio…
View article: Beam Dynamics of the ESS Linac
Beam Dynamics of the ESS Linac Open
The ESS linac will deliver an unprecedented 5 MW of average beam power when completed. Beyond the 90 MeV normal conducting front-end, the acceleration is performed using SC structures up to the design energy of 2 GeV. As the ESS will send …
View article: Passband Modes Excitation Triggered by Field Emission in ESS Medium Beta Cavity Prototype
Passband Modes Excitation Triggered by Field Emission in ESS Medium Beta Cavity Prototype Open
During the first vertical test of ESS Medium Beta large-grain prototype cavity in INFN-LASA, a phenomenon of coexisting two passband-modes was observed – 4π/6 mode was excited spontaneously during the power rise of 3π/6 mode. This phenomen…
View article: Commissioning Plans for the ESS DTL
Commissioning Plans for the ESS DTL Open
The Drift Tube Linac (DTL) of the European Spallation Source (ESS) is designed to operate at 352.2 MHz with a duty cycle of 4% (a beam pulse of 2.86 ms, 14 Hz repetition period) and will accelerate a proton beam of 62.5 mA pulse peak curre…
View article: Integration of Interfaces and Stabilization System in the Design of a Drift Tube Linac
Integration of Interfaces and Stabilization System in the Design of a Drift Tube Linac Open
Making an accurate RF design of any accelerating structure is fundamental to ensure that electromagnetic and beam dynamics requirements will be achieved. This is essential for the most complicated accelerating structures like the drift tub…
View article: Investigation of HOM Frequency Shifts Induced by Mechanical Tolerances
Investigation of HOM Frequency Shifts Induced by Mechanical Tolerances Open
We present Higher Order Mode (HOM) studies on ESS Medium-Beta cavity of INFN-LASA design, including both simulation and measurement results. Mechanical tolerances of the fabrication process might shift HOMs frequencies toward harmonics of …
View article: Status of and Plans for the Beam Dynamics Program DYNAC
Status of and Plans for the Beam Dynamics Program DYNAC Open
A short introduction to the linac beam dynamics code DYNAC will be given. Recently implemented features, such as a Graphical User Interface (GUI), will be presented and benchmarking of the Radio Frequency Quadrupole (RFQ) model will be dis…