Superconducting Solenoid Lens for a High Energy Part of a Proton Linac Front End

Di-Marco, E.; Khabiboulline, Emil T.; Orris, D.; Tartaglia, M.; Terechkine, I.

doi:10.1109/tasc.2012.2236374

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…Comparative studies of the focusing properties between solenoid and quadrupole magnets are discussed in the literature 6 . However, FANL used a superconducting solenoid for focusing proton LINAC up to an energy of 100 MeV 7 . Apart from particle accelerator superconducting solenoids are also used for MRI magnets [8][9] .…”

Section: Introductionmentioning

confidence: 99%

Accurate determination of the magnetic axis of a solenoid using measured field data and understanding the beam dynamics

sinha,

Malik

2023

Preprint

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Fundamental understanding of both the theory and the measurement procedure of a solenoid is the key to execute the project cost effectively and to achieve the desired performance. Attempt is made to understand the beam dynamic of charge particles by considering the conservation of canonical angular momentum of non-zero values. Analytical expression to generate a parallel beam using solenoid is derived. Effect of final beam size on the values of spherical aberration coefficient and focal length of a solenoid is studied using electron trajectories. Practical procedure to tune the above two parameters of a solenoid by simple modification is demonstrated. Mathematical model is derived to accurately determine the axis of a solenoid and the magnetic centre using measured magnetic field data and experimentally demonstrated the validity of the theory. Several solenoids are characterised using the procedure and used in the 9.5 MeV 10 kW electron LINAC which is appropriate for the use of sterilization of medical products and food irradiation.

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Section: Introductionmentioning

confidence: 99%

Accurate determination of the magnetic axis of a solenoid using measured field data and understanding the beam dynamics

sinha,

Malik

2023

Preprint

View full text Add to dashboard Cite

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Measuring the magnetic axis alignment during solenoids working

Arpaïa

Celano

Vito

et al. 2018

Sci Rep

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A method for monitoring the misalignment of the magnetic axis in solenoids is proposed. This method requires only a few measurements of the magnetic field at fixed positions inside the magnet aperture, and thus overcomes the main drawback of sturdy moving mechanics of other Hall sensor-based methods. Conversely to state-of-the-art axis determination, the proposed method can be applied also during magnet operations, when the axis region and almost the whole remaining magnet aperture are not accessible. Moreover, only a few measurements of the magnetic field at fixed positions inside the magnet aperture are required: thus a slow process such as the mapping of the whole aperture of a magnet by means of moving stages is not necessary. The mathematical formulation of the method is explained, and a case study on a model of a multi–layer solenoid is presented. For this case study, the uncertainty is assessed and the optimal placement of the Hall transducers is derived.

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Dynamics of charged particles in a solenoid and the accurate determination of the magnetic axis of a solenoid using measured field data

Sinha,

Malik

2024

Sci Rep

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A fundamental understanding of the theory and measurement procedures for characterizing a solenoid is crucial for making a project cost-effective and achieving the desired performance for its use in a LINAC. This paper attempts to comprehend the beam dynamics of charged particles by considering the conservation of canonical angular momentum, which can take on positive, negative, and zero values. The analytical expression to generate a parallel beam using a solenoid is derived. The effect of the final beam size on the values of a solenoid’s spherical aberration coefficient and the position of the minimum beam size with respect to the focal length is studied using electron trajectories. A practical procedure to tune the above two parameters of a solenoid is demonstrated by simply modifying the demountable disks connected at each end. A mathematical model is proposed to accurately determine the axis of a solenoid and the magnetic centre using the measured magnetic field data, which is validated experimentally. Several solenoids, used in the 9.5 MeV 10 kW electron LINAC suitable for sterilizing medical products and food irradiation, have been characterised using this procedure.

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Superconducting Solenoid Lens for a High Energy Part of a Proton Linac Front End

Cited by 5 publications

References 9 publications

Accurate determination of the magnetic axis of a solenoid using measured field data and understanding the beam dynamics

Accurate determination of the magnetic axis of a solenoid using measured field data and understanding the beam dynamics

Measuring the magnetic axis alignment during solenoids working

Dynamics of charged particles in a solenoid and the accurate determination of the magnetic axis of a solenoid using measured field data

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