Simulation studies for characterizing ultrashort bunches using novel polarizable X-band transverse deflection...

Area of Science:

• * Accelerator Physics
• * Particle Beam Diagnostics

Background:

• * Transverse deflection structures are crucial for characterizing longitudinal bunch properties in electron accelerators.
• * There is a growing need for precise measurement of ultrashort (femtosecond and subfemtosecond) electron bunches for advanced applications.
• * Existing methods face limitations when measuring these extremely short bunches.

Purpose of the Study:

• * To investigate the capability of deflection structures for measuring femtosecond and subfemtosecond electron bunches.
• * To evaluate the performance of the novel polarizable X-band transverse deflection structure (PolariX-TDS) at the ARES linac.
• * To explore the potential for 3D charge-density reconstruction of ultrashort bunches.

Main Methods:

• * Detailed simulations of charge-density and bunch-length measurements at the ARES linac (SINBAD facility, DESY).
• * Analysis of femtosecond and subfemtosecond bunch behavior using the PolariX-TDS.
• * Comparison of 1D and potential 3D charge-density reconstruction capabilities.

Main Results:

• * Simulations demonstrate the feasibility of measuring ultrashort bunches down to subfemtosecond durations.
• * The PolariX-TDS facilitates streaking bunches at all transverse angles.
• * The study identifies limitations and discusses the applicability of the proposed setup.

Conclusions:

• * The PolariX-TDS offers enhanced capabilities for electron bunch characterization, including 3D charge-density mapping.
• * The planned setup at the ARES linac is expected to yield valuable data on ultrashort bunches.
• * This advancement is critical for future applications requiring precisely controlled ultrashort electron bunches.