Cyclotrons2016 - List of Keywords (neutron)

Paper	Title	Other Keywords	Page
MOP02	Physical Design of External Two-Stage Beam Chopping System on the TR 24 Cyclotron	cyclotron, emittance, simulation, ion	45
	J. Stursa, M. Cihak, M. Gotz, V. Zach NPI, Řež near Prague, Czech Republic
	We briefly introduce a new Cyclotron Laboratory of the Nuclear Physics Institute of the Czech Academy of Sciences with the new cyclotron TR 24 which was commissioned in October 2015. One of the planned utilization of TR 24 beams is a generation of high-intense fast neutrons fluxes with potential implementation of a chopping system for spectrometric measurements of neutron energy by the Time-of-Flight method. For this purpose, physical design of a new ion-optical beam line was completed as well as comprehensive study of an external fast chopping system on this beam line. A set of home-made programs DtofDeflect have been developed for this system consisting of the first chopper powered by sinusoidal voltage and the second chopper powered by pulse voltage. The programs allow to find the optimum geometric and voltage parameters of the system by the means of mathematical simulations. The chopping system can provide the external 24 MeV proton beam with 2.3 ns pulse length at a repetition period of 236 ns in order to comply with the required pulse length to the repetition period ratio of 1:100.
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MOP04	SPES Cyclotron Beamlines	cyclotron, quadrupole, beam-losses, proton	53
	D. Campo, P. Antonini, A. Calore, A. Lombardi, M. Maggiore, L. Pranovi INFN/LNL, Legnaro (PD), Italy
	The SPES (Selective Production of Exotic Species) facility purposes are the production of radioactive beams (RIBs) by ISOL technique, the production and the research on innovative radioisotopes and experiments with high intensity neutron beams. For these reasons the 70p cyclotron, designed by BEST Cyclotron Systems Ins., has been installed at Laboratori Nazionali di Legnaro: it is a machine able to produce a beam current up to 700 μA shared into two extraction channels. Beams at the energy values of 35 MeV, 50 MeV and 70 MeV have to be transported to the experimental areas with specific properties and minimizing the beam losses. Here, the main features of the needed beamlines are described.
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MOP22	Simulation of Optimum Thickness and Configuration of 10 MeV Cyclotron Shield	cyclotron, shielding, radiation, simulation	110
	S. Azizpourian, H. Afarideh, M. Afkhami Karaei, M. Mousavinia AUT, Tehran, Iran F. Abbasi Davani Shahid Beheshti University, Tehran, Iran
	Baby Cyclotrons that made in Self-shield type have been employed for use in Medical center for the diagnosis of cancer diseases by positron emission tomography (PET) system. Here in we have done a discussion on gamma and neutron dose rates at a distance of one meter outside of the cyclotron shielding. This shield consist of Lead, polyethylene borated (10% Boron) layers from inside to outside respectively. With increasing the thickness of lead and polyethylene we will see a decrease in the gamma and neutron dose which received by the water phantom at a distance of one meter outside from the surface of the shield of the cyclotron. Note that the gamma and neutron dose at the beginning (without any shielding) was on the order of several thousand μSv per hour that by achieve to a certain amount of thickness of the shield, the dose was reduced to below of the limited level. In this study, the MCNPX Code has been used. In MCNPX Code that used the variance reduction techniques for decreasing relative errors of calculation which was a good method for this case study.
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THP19	Operational Status of the University of Washington Medical Cyclotron Facility	proton, controls, radiation, cyclotron	351
	R.C. Emery, E.F. Dorman University of Washington Medical Center, Seattle, Washington, USA
	The University of Washington Medical Cyclotron Facility (UWMCF) is built around a Scanditronix MC-50 compact cyclotron that was commissioned 1983 and that has been in continual use since. Its primary purpose is the production of 50.5 MeV protons for fast neutron therapy. While this proton energy is too low for proton therapy, it is ideal for research in small animal models. In addition to the protons used for fast neutron therapy and proton therapy research, UWMCF is able to accelerate other particles at variable energies. This makes it ideal for medical isotope research, including isotopes such as 211At, 186Re, and 117mSn that are being developed to target and treat metastatic disease at the cellular level. Most recent upgrades to the facility have been to the control systems. The original accelerator and therapy control systems were run on a DEC PDP-11 with a custom centralized i/o system built around the Z80 processor and chipset. Over the last 10 years we have continually been upgrading the controls while remaining operational, moving to a distributed system developed with the open source Experimental Physics and Industrial Control System (EPICS) toolkit.
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THC01	KURRI FFAG's Future Project as ADSR Proton Driver	experiment, acceleration, proton, simulation	366
	Y. Ishi, Y. Kuriyama, Y. Mori, M. Sakamoto, T. Uesugi Kyoto University, Research Reactor Institute, Osaka, Japan
	The accelerator complex using FFAG synchrotrons at KURRI* has been operated for the ADSR experiments connecting the 100 MeV proton beam line with the research reactor facility so called KUCA* since 2009. Fruitful results have been produced for the reactor physics using various configurations of the nuclear fuel core and variations of the neutron production target. Since higher energy beams such as 300 - 500 MeV are desired for the further study of the ADSR system, we are investigating the energy upgrade possibility of the accelerator complex. One of the candidates is to construct a new FFAG ring which adopts continuous acceleration with fixed frequency (serpentine acceleration) outside of the existing. These higher energy beams can be used for neutron or muon production experiments as well as ADSR study. KURRI* Kyoto University Research Reactor Institute ADSR Accelerator Driven Subcritical Reactor KUCA* Kyoto University Critical Assembly
	Slides THC01 [11.777 MB]
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FRA03	Status of the High Intensity Proton Beam Facility at LNL	cyclotron, proton, target, ISOL	394
	M. Maggiore, P. Antonini, D. Benini, G. Bisoffi, E. Boratto, M. Calderolla, A. Calore, D. Campo, N. Ciatara, J. Esposito, P. Favaron, A. Lombardi, L. Pranovi, G.P. Prete, L. Sarchiapone, D. Scarpa, D. Zafiropoulos, L. de Ruvo INFN/LNL, Legnaro (PD), Italy
	In 2013 the SPES (Selective Production of Exotic Species) project has entered in the construction phase at Laboratori Nazionali di Legnaro (LNL). The project, whose main goal is the research in nuclear physics with Radioactive Beams, has foreseen the construction of a new building hosting the accelerator able to deliver protons up the energy of 70 MeV and 50kW of beam power to be used as a primary beam for the ISOL source and for a production beam for other applications. The new facility design has been expanded and upgraded for taking advantage of the dual simultaneous extraction of beams from the Cyclotron in order to provide a multipurpose high intensity irradiation facility. Today the new facility is partially installed and the Cyclotron supplied by BEST Theratronics company (CANADA) with the related beam transport lines are under commissioning. The status of the commissioning of the high power accelerator and the capabilities of the facility as multipurpose high intensity proton beam laboratory will be presented.
	Slides FRA03 [18.295 MB]
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Paper

Title

Other Keywords

Page

MOP02

Physical Design of External Two-Stage Beam Chopping System on the TR 24 Cyclotron

cyclotron, emittance, simulation, ion

45

J. Stursa, M. Cihak, M. Gotz, V. Zach
NPI, Řež near Prague, Czech Republic

We briefly introduce a new Cyclotron Laboratory of the Nuclear Physics Institute of the Czech Academy of Sciences with the new cyclotron TR 24 which was commissioned in October 2015. One of the planned utilization of TR 24 beams is a generation of high-intense fast neutrons fluxes with potential implementation of a chopping system for spectrometric measurements of neutron energy by the Time-of-Flight method. For this purpose, physical design of a new ion-optical beam line was completed as well as comprehensive study of an external fast chopping system on this beam line. A set of home-made programs DtofDeflect have been developed for this system consisting of the first chopper powered by sinusoidal voltage and the second chopper powered by pulse voltage. The programs allow to find the optimum geometric and voltage parameters of the system by the means of mathematical simulations. The chopping system can provide the external 24 MeV proton beam with 2.3 ns pulse length at a repetition period of 236 ns in order to comply with the required pulse length to the repetition period ratio of 1:100.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP04

SPES Cyclotron Beamlines

cyclotron, quadrupole, beam-losses, proton

53

D. Campo, P. Antonini, A. Calore, A. Lombardi, M. Maggiore, L. Pranovi
INFN/LNL, Legnaro (PD), Italy

The SPES (Selective Production of Exotic Species) facility purposes are the production of radioactive beams (RIBs) by ISOL technique, the production and the research on innovative radioisotopes and experiments with high intensity neutron beams. For these reasons the 70p cyclotron, designed by BEST Cyclotron Systems Ins., has been installed at Laboratori Nazionali di Legnaro: it is a machine able to produce a beam current up to 700 μA shared into two extraction channels. Beams at the energy values of 35 MeV, 50 MeV and 70 MeV have to be transported to the experimental areas with specific properties and minimizing the beam losses. Here, the main features of the needed beamlines are described.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOP22

Simulation of Optimum Thickness and Configuration of 10 MeV Cyclotron Shield

cyclotron, shielding, radiation, simulation

110

S. Azizpourian, H. Afarideh, M. Afkhami Karaei, M. Mousavinia
AUT, Tehran, Iran
F. Abbasi Davani
Shahid Beheshti University, Tehran, Iran

Baby Cyclotrons that made in Self-shield type have been employed for use in Medical center for the diagnosis of cancer diseases by positron emission tomography (PET) system. Here in we have done a discussion on gamma and neutron dose rates at a distance of one meter outside of the cyclotron shielding. This shield consist of Lead, polyethylene borated (10% Boron) layers from inside to outside respectively. With increasing the thickness of lead and polyethylene we will see a decrease in the gamma and neutron dose which received by the water phantom at a distance of one meter outside from the surface of the shield of the cyclotron. Note that the gamma and neutron dose at the beginning (without any shielding) was on the order of several thousand μSv per hour that by achieve to a certain amount of thickness of the shield, the dose was reduced to below of the limited level. In this study, the MCNPX Code has been used. In MCNPX Code that used the variance reduction techniques for decreasing relative errors of calculation which was a good method for this case study.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THP19

Operational Status of the University of Washington Medical Cyclotron Facility

proton, controls, radiation, cyclotron

351

R.C. Emery, E.F. Dorman
University of Washington Medical Center, Seattle, Washington, USA

The University of Washington Medical Cyclotron Facility (UWMCF) is built around a Scanditronix MC-50 compact cyclotron that was commissioned 1983 and that has been in continual use since. Its primary purpose is the production of 50.5 MeV protons for fast neutron therapy. While this proton energy is too low for proton therapy, it is ideal for research in small animal models. In addition to the protons used for fast neutron therapy and proton therapy research, UWMCF is able to accelerate other particles at variable energies. This makes it ideal for medical isotope research, including isotopes such as 211At, 186Re, and 117mSn that are being developed to target and treat metastatic disease at the cellular level. Most recent upgrades to the facility have been to the control systems. The original accelerator and therapy control systems were run on a DEC PDP-11 with a custom centralized i/o system built around the Z80 processor and chipset. Over the last 10 years we have continually been upgrading the controls while remaining operational, moving to a distributed system developed with the open source Experimental Physics and Industrial Control System (EPICS) toolkit.

Export •

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THC01

KURRI FFAG's Future Project as ADSR Proton Driver

experiment, acceleration, proton, simulation

366

Y. Ishi, Y. Kuriyama, Y. Mori, M. Sakamoto, T. Uesugi
Kyoto University, Research Reactor Institute, Osaka, Japan

The accelerator complex using FFAG synchrotrons at KURRI* has been operated for the ADSR** experiments connecting the 100 MeV proton beam line with the research reactor facility so called KUCA*** since 2009. Fruitful results have been produced for the reactor physics using various configurations of the nuclear fuel core and variations of the neutron production target. Since higher energy beams such as 300 - 500 MeV are desired for the further study of the ADSR system, we are investigating the energy upgrade possibility of the accelerator complex. One of the candidates is to construct a new FFAG ring which adopts continuous acceleration with fixed frequency (serpentine acceleration) outside of the existing. These higher energy beams can be used for neutron or muon production experiments as well as ADSR study.
KURRI* Kyoto University Research Reactor Institute
ADSR** Accelerator Driven Subcritical Reactor
KUCA*** Kyoto University Critical Assembly

Slides THC01 [11.777 MB]

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FRA03

Status of the High Intensity Proton Beam Facility at LNL

cyclotron, proton, target, ISOL

394

M. Maggiore, P. Antonini, D. Benini, G. Bisoffi, E. Boratto, M. Calderolla, A. Calore, D. Campo, N. Ciatara, J. Esposito, P. Favaron, A. Lombardi, L. Pranovi, G.P. Prete, L. Sarchiapone, D. Scarpa, D. Zafiropoulos, L. de Ruvo
INFN/LNL, Legnaro (PD), Italy

In 2013 the SPES (Selective Production of Exotic Species) project has entered in the construction phase at Laboratori Nazionali di Legnaro (LNL). The project, whose main goal is the research in nuclear physics with Radioactive Beams, has foreseen the construction of a new building hosting the accelerator able to deliver protons up the energy of 70 MeV and 50kW of beam power to be used as a primary beam for the ISOL source and for a production beam for other applications. The new facility design has been expanded and upgraded for taking advantage of the dual simultaneous extraction of beams from the Cyclotron in order to provide a multipurpose high intensity irradiation facility. Today the new facility is partially installed and the Cyclotron supplied by BEST Theratronics company (CANADA) with the related beam transport lines are under commissioning. The status of the commissioning of the high power accelerator and the capabilities of the facility as multipurpose high intensity proton beam laboratory will be presented.

Slides FRA03 [18.295 MB]

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)