RUPAC2012 - List of Authors (Smirnov, V.L.)

Paper	Title	Page
WEPPC016	Update of Classical Cyclotron U-150 Magnetic System. Simulation and Experiment	478
	N.S. Azaryan, Yu.G. Alenitsky, A. Chesnov, O. Lepkina, E. Samsonov, I.M. Sedych, V.L. Smirnov JINR, Dubna, Moscow Region, Russia I.R. Gulamov, Z.V. Shukurov, R.A. Umerov, Ya.M. Uzakov Uzbekistan Academy of Sciences, The Institute of Nuclear Physics, Tashkent, Uzbekistan
	Classical cyclotron U-150 located in the Academy of Sciences of the Republic of Uzbekistan, Tashkent, was developed more than 50 years ago in Efremov’s institute for acceleration various particles (p, d, He). For magnetic field re-tuning the current coils are used. Nowadays U-150 is used to accelerate only protons to energy of 15-22 MeV for producing isotopes for medical or industrial applications. In order to save the electrical energy and operating simplification it is proposed to create a decreasing average magnetic field in cyclotron only by means of ferromagnetic parts. To create a negative gradient of the magnetic field steel parts are made and installed in the magnet. Analysis of measurement results showed the possibility of production of the required isotopes in updated U-150 with power economy of about 15%. Experimental irradiation of the target showed that the created field gradient did not provide an achievement of the required proton energy at radius of 64-65 cm. To achieve required energy one correction coil is kept in operation and measured magnetic field showed a satisfactory result. For estimation of possibility of creating the required magnetic field gradient without correction by coils the simulation of the cyclotron magnetic system were done and the results of calculations and its analysis are presented in this paper.

TUPPB008	SNOP – Beam Dynamics Analysis Code for Compact Cyclotrons	325
	V.L. Smirnov JINR/DLNP, Dubna, Moscow region, Russia S.B. Vorozhtsov JINR, Dubna, Moscow Region, Russia
	The program complex intended for particle dynamic simulations in a compact cyclotron from an injection line to the extraction system is described. The main features of the program SNOP are usage of 3D electric and magnetic field maps, beam space charge effect calculation and analysis of the beam losses on structure elements of the facility under consideration. An optimal usage of the modern computer capabilities and graphic libraries for visualization is a key issue in the program development. The beam dynamic modeling results for various cyclotrons are presented.

Paper

Title

Page

Update of Classical Cyclotron U-150 Magnetic System. Simulation and Experiment

478

N.S. Azaryan, Yu.G. Alenitsky, A. Chesnov, O. Lepkina, E. Samsonov, I.M. Sedych, V.L. Smirnov
JINR, Dubna, Moscow Region, Russia
I.R. Gulamov, Z.V. Shukurov, R.A. Umerov, Ya.M. Uzakov
Uzbekistan Academy of Sciences, The Institute of Nuclear Physics, Tashkent, Uzbekistan

Classical cyclotron U-150 located in the Academy of Sciences of the Republic of Uzbekistan, Tashkent, was developed more than 50 years ago in Efremov’s institute for acceleration various particles (p, d, He). For magnetic field re-tuning the current coils are used. Nowadays U-150 is used to accelerate only protons to energy of 15-22 MeV for producing isotopes for medical or industrial applications. In order to save the electrical energy and operating simplification it is proposed to create a decreasing average magnetic field in cyclotron only by means of ferromagnetic parts. To create a negative gradient of the magnetic field steel parts are made and installed in the magnet. Analysis of measurement results showed the possibility of production of the required isotopes in updated U-150 with power economy of about 15%. Experimental irradiation of the target showed that the created field gradient did not provide an achievement of the required proton energy at radius of 64-65 cm. To achieve required energy one correction coil is kept in operation and measured magnetic field showed a satisfactory result. For estimation of possibility of creating the required magnetic field gradient without correction by coils the simulation of the cyclotron magnetic system were done and the results of calculations and its analysis are presented in this paper.

TUPPB008

SNOP – Beam Dynamics Analysis Code for Compact Cyclotrons

325

V.L. Smirnov
JINR/DLNP, Dubna, Moscow region, Russia
S.B. Vorozhtsov
JINR, Dubna, Moscow Region, Russia

The program complex intended for particle dynamic simulations in a compact cyclotron from an injection line to the extraction system is described. The main features of the program SNOP are usage of 3D electric and magnetic field maps, beam space charge effect calculation and analysis of the beam losses on structure elements of the facility under consideration. An optimal usage of the modern computer capabilities and graphic libraries for visualization is a key issue in the program development. The beam dynamic modeling results for various cyclotrons are presented.