Explanipedia

Exploring paramedics’ lived experiences in confrontation with patients’ death during missions: a phenomenological study Open

Milad Ahmadi Marzaleh, Mahmoudreza Peyravi, Esmaeil Ahmadi, Iman Shakibkhah, Hossein Armin , et al. · 2024

Lived experiences of Iranian prehospital emergency technicians in facing women’s emergencies: a phenomenological study Open

Milad Ahmadi Marzaleh, Mahmoudreza Peyravi, Esmaeil Ahmadi, Hadi Mahmoodi, Iman Shakibkhah , et al. · 2024

The status of the FCC-ee optics tuning Open

Léon van Riesen-Haupt, Andrea Franchi, A. Faus‐Golfe, Antoine Chancé, B. Dalena , et al. · 2024

With a circumference of approximately 91 km, the Future Circular electron-positron Collider, FCC-ee, aims for unprecedented luminosities at beam energies from 45.6 to 182.5 GeV. A major challenge is reaching its design performance in the p…

The impact of the resistive-wall impedance on the ILSF storage ring Open

Nasrin Khosravi, Sara Dastan, Mina Akhyani, Esmaeil Ahmadi · 2024

The resistive contribution of the vacuum chamber represents a significant source of the collective effects and should be analysed in several aspects. Due to the NEG-coated re-designed ILSF vacuum chamber, the resistive-wall effects were ca…

Conceptual design of multipole injection kicker magnets for the ILSF storage ring Open

Z Azami, Farhad Saeidi, A Tafrihi, Esmaeil Ahmadi, K. Noori · 2024

The standard injection scheme of the Iranian Light Source Facility(ILSF) is composed of 2 septum and 4 kicker magnets installed in a 7-meter-long straight section. Further tuning of the 4 kicker devices to reduce perturbations has proven t…

Progress of the FCC-ee optics tuning working group Open

Rogelio Tomás, Andrea Franchi, A. Faus‐Golfe, B. Dalena, Cristobal Garcia Jaimes , et al. · 2023

FCC-ee is a proposed lepton collider with a circumference close to 100 km to produce an unprecedented amount of luminosity. The FCC-ee optics tuning working group is addressing one of the most critical aspects of the FCC-ee, that is the re…

THE WAKEFIELD STUDY OF THE RF-SHIELDED BELLOWS AT THE ILSF STORAGE RING Open

Nafiseh Khosravi, Esmaeil Ahmadi, Mina Akhyani, Atieh Khosravi · 2021

The corrugated geometry of the bellows made it critical to be shielded with an RF-Shield. Different types of RF shields can be applied to the ILSF vacuum chamber to cover this component’s destructive impedance peaks. Then, the Impedance st…

WAKEFIELD AND HEAT LOAD STUDY OF THE GATE VALVES AT ILSF STORAGE RING Open

Nafiseh Khosravi, Esmaeil Ahmadi, Mina Akhyani, Sara Dastan, Atieh Khosravi · 2021

As one part of the ILSF storage ring, the rf-shield of the gate valves generates considerable interest in terms of wake impedance and heat-load. Inside the gate valves, there is a vacuity, which causes low frequencies resonances, and it ca…

Beam dynamics of high chromaticity lattice for Iranian light source facility (ILSF) storage ring Open

F. Foroughi, S. M. Jazayeri, Esmaeil Ahmadi, J. Rahighi, Sara Dastan · 2019

One of the limiting factors of electron beam lifetime in low emittance storage rings is Head-Tail (HT) instability. Low emittance storage rings typically have a large negative natural chromaticity due to the strong quadrupoles. Above trans…

A General Comparison On Impedance Theory And Cst Simulation of Discontinuities Open

Nafiseh Khosravi, Mina Akhyani, Esmaeil Ahmadi, A. Mashal, Hossein Karimi , et al. · 2019

Inhomogeneity of vacuum chamber components is the main source of coupling impedance. Nowadays, wake impedances are mostly predictable by 3D codes and analytical prediction of impedance theories can be helpful as a side solution. On the oth…

Beta Beating and Coupling Correction of the ILSF Storage Ring Open

A. Mashal, Esmaeil Ahmadi, F.D. Kashani, Sara Dastan, J. Rahighi · 2019

The Iranian Light Source Facility (ILSF) is a 3 GeV synchrotron radiation facility, which is in the design stage. Inevitable errors like imperfection of magnetic field and misalignment of magnets will introduce various destructive effects …

Studies for Injection with a Pulsed Multipole Kicker at ALBA Open

Gabriele Benedetti, Esmaeil Ahmadi, Ubaldo Iriso, Montserrat Pont, David Ramos · 2018

Injection into the ALBA storage ring presently uses a conventional local injection bump with four dipole kickers. However, following the promising results of the first tests with single multipole kicker injection at other light sources, st…

Evaluation of Collective Effects in Iranian Light Source Facility (ILSF) Storage Ring Open

Esmaeil Ahmadi, Sasan Ahmadiannamin, Seyed Masoud Jazayeri, J. Rahighi · 2017

In this paper, we present the calculations of various collective effects in the storage ring of ILSF, a synchrotron light source under design in Iran. The ILSF storage ring is based on 5-BA lattice structure and emittance of 270 pm-rad whi…

Recent Progress on the Development of Iranian Light Source Facility (ILSF) Project Open

J. Rahighi, Fatemeh Ahmad Mehrabi, Esmaeil Ahmadi, Sima Ahmadian, Mohsen Akbari , et al. · 2016

The Iranian Light Source Facility Project (ILSF) is a 3rd generation light source with energy of 3 GeV, a full energy injector and a 150 MeV linac as pre-injector. The stored beam current in top up mode is 400 mA, the beam lifetime is abou…

Designing an Ultra Low Emittance Lattices for Iranian Light Source Facility Storage Ring Open

Esmaeil Ahmadi, Hossein Ghasem, Morteza Jafarzadeh, Seyed Masoud Jazayeri, J. Rahighi · 2016

Electron storage rings are extensively used for high luminosity colliders, damping rings in high-energy physics and synchrotron light sources. To further increase the luminosity at the colliders or brightness of a synchrotron light sources…

Lattice design for the storage ring of Iranian Light Source Facility Open

Hossein Ghasem, Esmaeil Ahmadi, Farhad Saeidi · 2015

The Iranian Light Source Facility (ILSF) as a national project is a 3 GeV third generation synchrotron light source facility which provides high energy super bright X-ray for the users. Design of the ILSF storage ring emphasizes an ultra l…

Lattice design for the storage ring of Iranian Light Source Facility Open

Hossein Ghasem, Esmaeil Ahmadi, Farhad Saeidi · 2015

Beam dynamics of a new low emittance third generation synchrotron light source facility Open

Hossein Ghasem, Esmaeil Ahmadi, Farhad Saeidi, Kh Sarhadi · 2015

The Iranian Light Source Facility (ILSF) is a new 3 GeV third generation synchrotron light source facility which is in the design stage. As the main radiation source, design of the ILSF storage ring emphasizes an ultralow electron beam emi…

Esmaeil Ahmadi YOU? Author Swipe