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Gradient Echo Quantum Memory in Warm Atomic Vapor

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Published on: November 11, 2013

Multiphysics study on the higher harmonic RF cavity for the Iranian Light Source Facility's storage ring.

A Sadeghipanah^1,2, S Ahmadiannamin^1,2, M Ostovar^3,4

¹Iranian Light Source Facility (ILSF), Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.

Scientific Reports

|October 8, 2025

Summary

Higher harmonic cavities enhance synchrotron storage rings by improving beam lifetime and stability. This study details the design and simulation of these critical components for the Iranian Light Source Facility.

Keywords:

Electromagnetic simulations Higher harmonic cavity Synchrotron radiation Thermo-mechanical simulations Tuning mechanisms Vacuum simulations

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Area of Science:

Accelerator Physics
Electromagnetism
Mechanical Engineering

Background:

Higher harmonic cavities are crucial for low-emittance, high-current synchrotron storage rings.
They improve stored beam lifetime and suppress coupled bunch instabilities, impacting synchrotron radiation quality and machine stability.

Purpose of the Study:

To comprehensively analyze and simulate the beam dynamics, electromagnetic, thermomechanical, and vacuum aspects of the Iranian Light Source Facility's higher harmonic cavities.
To finalize engineering designs and initiate the fabrication process for these essential components.

Main Methods:

Analytical calculations and detailed simulations were performed for various physical aspects.
Electromagnetic, beam dynamics, thermomechanical, and vacuum analyses were conducted.

Main Results:

The study presents comprehensive simulation and analytical results for the higher harmonic cavities.
Engineering drawings have been finalized based on these results, and fabrication has commenced.
Low-power RF measurement results from the first prototype are reported.

Conclusions:

The detailed analysis and simulations have guided the final design of the higher harmonic cavities.
The successful fabrication and initial testing pave the way for their integration into the Iranian Light Source Facility.