5th Slow Extraction Workshop at MedAustron in Wiener Neustadt

Slow resonant extraction plays a crucial role in delivering a high-quality continuous beam to experiments. Simulating extraction and transport of charged particle beams from a synchrotron to a transport line require a process of careful modeling and experimentation. There are various particle tracking simulation tools available to use and each has its merits and deficiencies. In this work we...

Slow extraction is needed for continuous particle spills from synchrotrons but is inherently lossy due to the non-zero particle density between circulating and extracted beam lines. At CERN's SPS, this results in significant activation of electrostatic septa, making it a highly radioactive area. The current SPS operational parameters and annual slow-extracted protons are already constrained by...

Bent crystals have become a well-established technology, utilized in diverse accelerator applications at CERN such as the crystal-assisted collimation system in the LHC and loss reduction during slow extraction from SPS using the shadowing technique. Future plans involve employing bent crystals as a key component to measure the electric and magnetic dipole momentum of short-lived particles in...

The SHERPA (“Slow High-efficiency Extraction from Ring Positron Accelerator”) project aim is to develop an efficient technique to extract a positron beam from one of the accelerator rings composing the DAΦNE accelerator complex at the Frascati National Laboratory of INFN, setting up a new beam line able to deliver positron spills of O(ms) length, excellent beam energy spread and...

In recent years, mixed helium (He-2+) and carbon ion (C-6+) irradiation schemes have been proposed to facilitate in-vivo range verification in ion beam therapy. Such a scheme implies accelerating and extracting both ion species simultaneously, with the idea of using C-6+ for tumor treatment, while performing real-time dosimetry with He-2+ in a detector downstream of the patient.

The...

The NIMMS Helium Synchrotron is a 30 m circumference ring which provides slow extracted protons and helium ions to a proposed treatment and research facility.
For a state-of-the-art research facility, flexible extraction options are essential. These options include having high intensity pulses, and variable timescale pulses to investigate radiobiological FLASH effects.
A variety of different...

Improved slow extraction beam stability can be achieved by better control of the magnet power supply currents. However, the required performance exceeds capabilities of available current measurement systems. Within the IFast collaboration, such an improved current measurement system is being developed. This presentation summarizes the requirements, the solution under development and achieved...

MedAustron is an ion therapy facility for protons and carbon ions located in Wiener Neustadt, Austria. The beam is presently extracted for clinical operation from the synchrotron with third-order resonant slow extraction via acceleration with a betatron core. However, due to the flexibility of the synchrotron operation for Non Clinical Research (NCR) purposes, other extraction methods can be...

This presentation provides an overview of the current simulation framework used at MedAustron to simulate the multi-energy extraction process. These simulations aim to assist in the commissioning of a potential future implementation of MEE at MedAustron. The recent improvements in the Xsuite tracking code facilitate the simulation of beam re-acceleration, including all the necessary dynamic...

The excitation signals used in Radio Frequency Knock Out (RF KO) resonant slow extraction influence the temporal structure of the resulting spill. Therefore, a careful design of excitation signals is crucial to prevent artificial ripples in the spill caused by the excitation. At the same time, tailored signals can suppress ripples introduced by external sources such as power converters.
This...

Radio-frequency (RF) techniques can be utilised to provide a tailored time structure to slow extraction users. In this contribution, a manipulation known as RF phase displacement is presented as a way of satisfying two different beam requests: (i) ~millisecond-scale spills for FLASH therapy/Radiation-to-Electronics users, and (ii) ~second-scale spills with nanosecond bunching for a dark-matter...

Slow resonant extraction plays a crucial role in delivering a high-quality continuous beam to experiments. Simulating extraction and transport of charged particle beams from a synchrotron to a transport line require a process of careful modeling and experimentation. There are various particle tracking simulation tools available to use and each has its merits and deficiencies. In this work we...

The SHERPA (“Slow High-efficiency Extraction from Ring Positron Accelerator”) project aim is to develop an efficient technique to extract a positron beam from one of the accelerator rings composing the DAΦNE accelerator complex at the Frascati National Laboratory of INFN, setting up a new beam line able to deliver positron spills of O(ms) length, excellent beam energy spread and...

Bent crystals have become a well-established technology, utilized in diverse accelerator applications at CERN such as the crystal-assisted collimation system in the LHC and loss reduction during slow extraction from SPS using the shadowing technique. Future plans involve employing bent crystals as a key component to measure the electric and magnetic dipole momentum of short-lived particles in...

Improved slow extraction beam stability can be achieved by better control of the magnet power supply currents. However, the required performance exceeds capabilities of available current measurement systems. Within the IFast collaboration, such an improved current measurement system is being developed. This presentation summarizes the requirements, the solution under development and achieved...

Slow extraction is needed for continuous particle spills from synchrotrons but is inherently lossy due to the non-zero particle density between circulating and extracted beam lines. At CERN's SPS, this results in significant activation of electrostatic septa, making it a highly radioactive area. The current SPS operational parameters and annual slow-extracted protons are already constrained by...

This presentation provides an overview of the current simulation framework used at MedAustron to simulate the multi-energy extraction process. These simulations aim to assist in the commissioning of a potential future implementation of MEE at MedAustron. The recent improvements in the Xsuite tracking code facilitate the simulation of beam re-acceleration, including all the necessary dynamic...

In recent years, mixed helium (He-2+) and carbon ion (C-6+) irradiation schemes have been proposed to facilitate in-vivo range verification in ion beam therapy. Such a scheme implies accelerating and extracting both ion species simultaneously, with the idea of using C-6+ for tumor treatment, while performing real-time dosimetry with He-2+ in a detector downstream of the patient.

The...

MedAustron is an ion therapy facility for protons and carbon ions located in Wiener Neustadt, Austria. The beam is presently extracted for clinical operation from the synchrotron with third-order resonant slow extraction via acceleration with a betatron core. However, due to the flexibility of the synchrotron operation for Non Clinical Research (NCR) purposes, other extraction methods can be...