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MOPSA34 |
Multipurpose Cyclotron for the Medical and Pharmaceutical Purposes | |
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| Construction of the proton centers costs hundreds of millions dollars. Requirement of them is very high. Main "instrument" of proton therapy - the accelerator of elementary particles, most often a cyclotron. Typical medical accelerators disperse protons to energy from 75 to 200 MEV. The possibility of receiving protons with different energy is important for therapy: they have Bragg peaks at the different penetration depth, forming thus the plateau of dozny distribution or the modified Bragg’s peak (spread out Bregg peak, SOBP). Selecting the necessary distribution of protons for energy, it is possible "to fill" a tumor with ionization maxima evenly. The removed bunch of protons from the accelerator is transferred to the so-called medical room (treatment room, in the centers of their proton therapy usually from three to five) where there is a patient. Cyclotrons are applied also in the pharmaceutical purposes to an operating time of isotopes for SPECT and PET. The pharmaceutical cyclotron can positively disperse also negatively charged ions to energy to 70 MEV. In work the possibility of use of one cyclotron with several beams, both for medical, and for the pharmaceutical purposes is considered. At the same time the quantity of a gentra can be reduced, and advance of waiting list for treatment of patients can be accelerated. Besides modification of the existing cyclotrons for their use in the medical and pharmaceutical purposes is possible. | ||
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TUPSB19 |
About a Possibility of Acceleration of Ferromagnetic Objects by the Electron Rings | |
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| In this work the possibility of the use of the domains of a ferromagnetic as the accelerated objects is considered . There is some semblance of the adgezator, but the moving one, used earlier at coherent acceleration of protons by electronic rings. A certain similarity of repetition of the idea of acceleration of protons by the electronic rings due to acceleration of these rings by external fields is possible. The acceleration can be done by the magnetic fields with the corresponding gradient of a longitudinal field, or by electric fields also. In this work the possibility of use of domains of a ferromagnetic as the accelerated objects is considered. It is semblance of adgezator but moving one, used earlier at consecutive acceleration of protons by electronic rings. To some extent it is the repetition of the idea of acceleration of protons by electronic rings at acceleration of these rings by external electromagnetic fields. Acceleration can be made by magnetic fields with the corresponding gradient of longitudinal area and by electric fields also. | ||
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