Accelerator tube construction and characterization for a tandem-electrostatic-quadrupole for accelerator-based boron neutron capture therapy

Cartelli, D.; Vento, V.; Castell, W.; Paolo, H. Di; Kesque, J.M.; Bergueiro, J.; Valda, A.A.; Erhardt, J.; Kreiner, Andrés J.

doi:10.1016/j.apradiso.2011.01.017

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…A built tube successfully passed the mechanical test, the high voltage test (106 kV applied between ends) and vacuum test (3×10 -7 mbar) [15]. Figure 1 shows a tube section, like those used in the ion source test stand and the 200 kV accelerator, along with its quadrupole modules.…”

Section: Accelerator Tubes and Quadrupolesmentioning

confidence: 99%

Accelerator technology and SPECT developments for BNCT

Valda¹

2014

Proceedings of 10th Latin American Symposium on Nuclear Physics and Applications — PoS(X LASNPA)

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Accelerator-Based Boron Neutron Capture Therapy (AB-BNCT) is establishing itself worldwide as the future modality to start the phase of in-hospital facilities. There are projects in Russia, UK, Italy, Japan, Israel and Argentina to develop AB-BNCT around different types of accelerators. In particular, the present status and recent progress of the Argentine project for the development of a Tandem-Electrostatic-Quadrupole (TESQ) accelerator is presented. Different working areas are treated: high-power ion sources, acceleration tubes, transport of intense beams, beam diagnostics, high-power targets, 9 Be(d,n) reaction as a possible neutron source and treatment room design. A complete test stand was built and commissioned for intense proton beam production and characterization. Beams of 10 to 30 mA have been produced and transported during variable periods of operation by means of a pre accelerator and an electrostatic quadrupole doublet to a suppressed Faraday cup. The beam diagnostics has been performed through the observation with digital cameras of induced fluorescence in the residual gas. A 200 kV TESQ accelerator prototype has been constructed and is under test and a 600 keV prototype is under construction. Self consistent space charge beam transport simulations have been performed and compared with experiments. In addition to the traditional 7 Li(p,n) reaction, 9 Be(d,n) using a thin Be target has been thoroughly studied as a candidate for a possible neutron source for deep seated tumors, showing a satisfactory performance. A treatment room complying with regulations has been designed. Finally we present advances in the development of a SinglePhoton Emission Computed Tomography (SPECT) system for online dosimetry during a BNCT treatment.

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Section: Accelerator Tubes and Quadrupolesmentioning

confidence: 99%

Accelerator technology and SPECT developments for BNCT

Valda¹

2014

Proceedings of 10th Latin American Symposium on Nuclear Physics and Applications — PoS(X LASNPA)

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“…Application of accelerator is common in many fields such as research, education, industry, medicine [1] and agriculture. The aim of designing the column of an accelerator is to accelerate electrons to energies more than 300 KeV by using Journal of Applied Mathematics and Physics electrostatic field.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Design of Beam Tube of 300 KeV Electron Electrostatic Accelerator

Karanian¹,

Mogaddam²,

Seifnouri³

et al. 2017

JAMP

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The column of electron electrostatic accelerator is one of the critical components in electrostatic accelerator. The geometrical design of such accelerator must be as such that in the case of applying voltage to its electrodes, not only should its equipotential surfaces and its gradient accelerate the beam particles up to desired energy, but also it should focus the beam and hinder broadening of energy distribution of accelerated particles. The immersed electrodes in the field are, geometrically, perpendicular to optical axis around the medial plane. Numerous models that can be used in the distribution of axial potential, have been presented and linear model, analytical model, double-column electrode model and polynomial electrode model are among them. In this paper, series expansions based on Bessel functions is used to obtain the axial potential distribution of immersed accelerator electrodes in double-electrode field and it is then compared to the mentioned models by solving the final equation via the least square method. Finally, by using CST Studio software and the information we obtained from the axial potential, the column of electron accelerator with its energy distribution and its optimal electron output beam radius is designed and simulated.

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