ECRIS-2014 - List of Keywords (experiment)

Paper	Title	Other Keywords	Page
MOOBMH02	Emittance Measurements For RIKEN 28 GHz SC-ECRIS	ion, emittance, extraction, ion-source	10
	Y. Higurashi, T. Nakagawa, J. Ohnishi, K. Ozeki RIKEN Nishina Center, Wako, Japan
	In 2013, the intense beams of highly charged uranium ion (180euA of U³⁵⁺, 230euA of U³³⁺) were extracted from RIKEN SC-ECRIS. Following the success, intense beam of U³⁵⁺ ions was used for the RIBF experiment for 24 days without break. It is obvious that production of high-quality beam (smaller emittacne and good stability etc) is also important for RIKEN radio isotope beam factory (RIBF) project. For this reason, in 2014, we systematically measured the emittance and beam intensity of the highly charged uranium ions under various conditions (magnetic field configuration, extracted beam intensity, beam stability etc) to search the optimum condition. In these experiments, we observed that the emittnce size is strongly dependent on the magnetic field configuration, especially Bext. In this contribution, we present the effect of the various parameters (magnetic field configuration, extracted beam intensity, beam stability etc) of the SC-ECRIS on the beam intensity and emittance. We also discuss its mechanism in detail.
	Slides MOOBMH02 [2.472 MB]

MOOAMH02	High Current Proton and Deuteron Beams for Accelerators and Neutron Generators	neutron, plasma, ion, target	30
	V. Skalyga, S. Golubev, I. Izotov, S. Razin, V. Sidorov IAP/RAS, Nizhny Novgorod, Russia T. Kalvas, H. A. Koivisto, O.A. Tarvainen JYFL, Jyväskylä, Finland A.V. Maslennikova, A. Volovecky Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia
	This paper presents the latest results of high current proton and deuteron beam production at SMIS 37 at the Institute of Applied Physics. In this experimental setup the plasma is created by 37.5 GHz gyrotron radiation with power up to 100 kW in a simple mirror trap. High microwave power and frequency allow sustaining higher density hydrogen plasma in comparison to conventional ECRIS's or microwave sources. The low ion temperature, on the order of a few eV, is beneficial to produce proton beams with low emittance. Latest experiments with hydrogen and deuterium show possibility of beam formation with currents up to 550 mA at high voltages below 45 kV with normalized rms emittance lower than 0.2 pimmmrad. Such beams have a high potential for application in future accelerator research. Also in frames of the present paper it is suggested to use such an ion source in a scheme of D-D neutron generator. Such ion source can produce deuteron ion beams with current density up to 700-800 mA/cm². Generation of the neutron flux with density at the level of 7-8*10¹⁰ s⁻¹cm^-2 could be obtained in case of TiD2 target bombardment with deuteron beam accelerated to 100 keV.
	Slides MOOAMH02 [1.961 MB]

MOPPH002	Production Of Metallic Stable Ion Beams For GANIL And SPIRAL2	ion, ion-source, ECR, injection	45
	F. Lemagnen, C. Barue, C. Canet, J.L. Flambard, R. Frigot, P. Jardin, L. Maunoury, O. Osmond, J. Piot GANIL, Caen, France B.J.P. Gall IPHC, Strasbourg Cedex 2, France T. Lamy, P. Sole, T. Thuillier LPSC, Grenoble Cedex, France C. Peaucelle IN2P3 IPNL, Villeurbanne, France
	GANIL has been producing many stable beams for nearly 30 years. Constant progress have been obtained in terms of intensity, stability and reliability. The presentation highlights recent results obtained for 50Ti beam production from an organo-metallic compound using the MIVOC (Metallic Ions from Volatile Compounds) method with the ECR4 ion source. The synthesis of this compound has been studied and realized by the IPHC-Strasbourg team from isotopically enriched titanium metal. Preliminary tests using natural titanocene were performed to validate the production method in terms of beam intensity, stability and reliability. Results obtained allowed us to program a physics experiment in September 2013. A 50Ti¹⁰⁺ beam was maintained stable for 300 h with a mean intensity of 20 μA. Q/A=1/3 ion source of SPIRAL 2 facility, whom commissioning will be led by end of 2014, is Phoenix V2 ion source which has been developed by LPSC-Grenoble. Results obtained for nickel (58Ni¹⁹⁺) and calcium (40Ca¹⁶⁺) in collaboration with LPSC Grenoble will be presented in this report. CNRS - Centre national de la recherche scientifique. 3, rue Michel-Ange 75794 Paris cedex 16 - France CEA, Commissariat à L'Energie Atomique Bâtiment Le ponant D - 25 rue Leblanc 75015 PARIS

MOPPH015	Production and Acceleration of Titanium-50 Ion Beam at the U-400 Cyclotron	ion, cyclotron, ion-source, ECR	64
	S.L. Bogomolov, A.E. Bondarchenko, I.V. Kalagin, K.I. Kuzmenkov, N. Lebedev, V.Ya. Lebedev, V.N. Loginov, R.E. Vaganov JINR, Dubna, Moscow Region, Russia Z. Asfari, H. Faure, M. Filliger, B.J.P. Gall IPHC, Strasbourg Cedex 2, France
	Funding: *Work supported by Russian Foundation for Basic Research under grant number 13-02-12011 The production of Ti-50 ion beam with ECR ion source using MIVOC method is described. The experiments were performed at the test bench with the natural and enriched compounds of titanium (CH3)5C5Ti(CH3)3. The compounds were synthesized in collaboration with IPHC (Strasbourg) group. In the experiments at the test bench the beam currents of Ti⁵⁺ - 80 mkA and Ti¹¹⁺ - 70 mkA were achieved at different settings of the source. After successful tests two 3 weeks runs with Ti-50 beam were performed at the U-400 cyclotron for the experiments on spectroscopy of super heavy elements. The intensity of the injected beam of 50Ti⁵⁺ was about of 50-60 μA, during experiment the source have shown stable operation. The compound consumption rate was determined to be about of 2.4 mg/h, corresponding to 50Ti consumption of 0.52 mg/h.

TUOMMH01	Improvement of Beam Intensities for Ion Beams with Charge-to-Mass Ratio of 1/3 with Two-Frequency Heating Technique	ion, extraction, ECRIS, plasma	83
	A. Kitagawa NIRS, Chiba-shi, Japan T.F. Fujita, M. Muramatsu National Institute of Radiological Sciences, Chiba, Japan K. Fukushima, N. Sasaki, K. Takahashi, W. Takasugi AEC, Chiba, Japan Y. Kato Osaka University, Graduate School of Engineering, Osaka, Japan
	Facilities of heavy ion radiotherapy use carbon ions due to its better biological dose distributions. The necessary energy is over 400MeV/u. A typical accelerator system consisits of a synchrotron and an injector. ECR ion sources have been developed and utilized to produce C⁴⁺ ions. On the other hand, in order to study basic biological researches with a such facility, there are occasionally requirements to produce other ion species like Ar or Fe. Since the injector design is fixed for the acceleration of ions with a charge-to-mass ratio of about 1/3, the ion source must produce Ar¹³⁺ and Fe¹⁹⁺. As a method to improve highly-charged ion production, the technique to feed multiple microwaves with different frequencies is well-known. Our group studied the improvements when the two frequencies are close together each with a power of more than 1kW using the 18GHz NIRS-HEC ECR ion source installed in the Heavy Ion Medical Accelerator in Chiba (HIMAC. Fe and Ni are interesting for a risk study in space environment. We combined the MIVOC method and the two-frequency heating technique for the production of Fe and Ni. The recent test results will be reported.
	Slides TUOMMH01 [2.651 MB]

THOMMH03	A Point-like Source of Extreme Ultraviolet Radiation Based on Non-equilibrium Discharge, Sustained by Powerful Radiation of Terahertz Gyrotron	radiation, plasma, ion, vacuum	140
	V. Sidorov, M.Yu. Glyavin, S. Golubev, I. Izotov, A.G. Litvak, G. Luchinin, D. Mansfeld, S. Razin, V. Skalyga, A. Vodopyanov IAP/RAS, Nizhny Novgorod, Russia
	Funding: The work was supported by RSF within grant No 14-12-00609. It is proposed in this paper to use discharge plasma supported by terahertz radiation as a source of EUV light for high-resolution lithography. In this report we discuss the experimental investigation of two types of EUV sources based on discharge, supported by powerful gyrotron radiation. Following investigation results are described: -a series of experiments that demonstrate the generation of EUV light from the vacuum-arc discharge plasma in tin vapor in the magnetic trap heated by gyrotron radiation with a frequency of 75 GHz under electron cyclotron resonance (ECR) conditions; -a numerical modeling of the plasma emissivity in the EUV range, depending on the parameters of the heating radiation is performed; -experimental studies of EUV emission from plasma discharge sustained by strong terahertz powerful radiation in inhomogeneous gas flows are started.
	Slides THOMMH03 [1.249 MB]

Paper

Title

Other Keywords

Page

MOOBMH02

Emittance Measurements For RIKEN 28 GHz SC-ECRIS

ion, emittance, extraction, ion-source

10

Y. Higurashi, T. Nakagawa, J. Ohnishi, K. Ozeki
RIKEN Nishina Center, Wako, Japan

In 2013, the intense beams of highly charged uranium ion (180euA of U³⁵⁺, 230euA of U³³⁺) were extracted from RIKEN SC-ECRIS. Following the success, intense beam of U³⁵⁺ ions was used for the RIBF experiment for 24 days without break. It is obvious that production of high-quality beam (smaller emittacne and good stability etc) is also important for RIKEN radio isotope beam factory (RIBF) project. For this reason, in 2014, we systematically measured the emittance and beam intensity of the highly charged uranium ions under various conditions (magnetic field configuration, extracted beam intensity, beam stability etc) to search the optimum condition. In these experiments, we observed that the emittnce size is strongly dependent on the magnetic field configuration, especially Bext. In this contribution, we present the effect of the various parameters (magnetic field configuration, extracted beam intensity, beam stability etc) of the SC-ECRIS on the beam intensity and emittance. We also discuss its mechanism in detail.

Slides MOOBMH02 [2.472 MB]

MOOAMH02

High Current Proton and Deuteron Beams for Accelerators and Neutron Generators

neutron, plasma, ion, target

30

V. Skalyga, S. Golubev, I. Izotov, S. Razin, V. Sidorov
IAP/RAS, Nizhny Novgorod, Russia
T. Kalvas, H. A. Koivisto, O.A. Tarvainen
JYFL, Jyväskylä, Finland
A.V. Maslennikova, A. Volovecky
Nizhny Novgorod State Medical Academy, Nizhny Novgorod, Russia

This paper presents the latest results of high current proton and deuteron beam production at SMIS 37 at the Institute of Applied Physics. In this experimental setup the plasma is created by 37.5 GHz gyrotron radiation with power up to 100 kW in a simple mirror trap. High microwave power and frequency allow sustaining higher density hydrogen plasma in comparison to conventional ECRIS's or microwave sources. The low ion temperature, on the order of a few eV, is beneficial to produce proton beams with low emittance. Latest experiments with hydrogen and deuterium show possibility of beam formation with currents up to 550 mA at high voltages below 45 kV with normalized rms emittance lower than 0.2 pi*mm*mrad. Such beams have a high potential for application in future accelerator research. Also in frames of the present paper it is suggested to use such an ion source in a scheme of D-D neutron generator. Such ion source can produce deuteron ion beams with current density up to 700-800 mA/cm². Generation of the neutron flux with density at the level of 7-8*10¹⁰ s⁻¹cm^-2 could be obtained in case of TiD2 target bombardment with deuteron beam accelerated to 100 keV.

Slides MOOAMH02 [1.961 MB]

MOPPH002

Production Of Metallic Stable Ion Beams For GANIL And SPIRAL2

ion, ion-source, ECR, injection

45

F. Lemagnen, C. Barue, C. Canet, J.L. Flambard, R. Frigot, P. Jardin, L. Maunoury, O. Osmond, J. Piot
GANIL, Caen, France
B.J.P. Gall
IPHC, Strasbourg Cedex 2, France
T. Lamy, P. Sole, T. Thuillier
LPSC, Grenoble Cedex, France
C. Peaucelle
IN2P3 IPNL, Villeurbanne, France

GANIL has been producing many stable beams for nearly 30 years. Constant progress have been obtained in terms of intensity, stability and reliability. The presentation highlights recent results obtained for 50Ti beam production from an organo-metallic compound using the MIVOC (Metallic Ions from Volatile Compounds) method with the ECR4 ion source. The synthesis of this compound has been studied and realized by the IPHC-Strasbourg team from isotopically enriched titanium metal. Preliminary tests using natural titanocene were performed to validate the production method in terms of beam intensity, stability and reliability. Results obtained allowed us to program a physics experiment in September 2013. A 50Ti¹⁰⁺ beam was maintained stable for 300 h with a mean intensity of 20 μA. Q/A=1/3 ion source of SPIRAL 2 facility, whom commissioning will be led by end of 2014, is Phoenix V2 ion source which has been developed by LPSC-Grenoble. Results obtained for nickel (58Ni¹⁹⁺) and calcium (40Ca¹⁶⁺) in collaboration with LPSC Grenoble will be presented in this report.
CNRS - Centre national de la recherche scientifique. 3, rue Michel-Ange
75794 Paris cedex 16 - France
CEA, Commissariat à L'Energie Atomique Bâtiment Le ponant D - 25 rue Leblanc
75015 PARIS

MOPPH015

Production and Acceleration of Titanium-50 Ion Beam at the U-400 Cyclotron

ion, cyclotron, ion-source, ECR

64

S.L. Bogomolov, A.E. Bondarchenko, I.V. Kalagin, K.I. Kuzmenkov, N. Lebedev, V.Ya. Lebedev, V.N. Loginov, R.E. Vaganov
JINR, Dubna, Moscow Region, Russia
Z. Asfari, H. Faure, M. Filliger, B.J.P. Gall
IPHC, Strasbourg Cedex 2, France

Funding: *Work supported by Russian Foundation for Basic Research under grant number 13-02-12011
The production of Ti-50 ion beam with ECR ion source using MIVOC method is described. The experiments were performed at the test bench with the natural and enriched compounds of titanium (CH3)5C5Ti(CH3)3. The compounds were synthesized in collaboration with IPHC (Strasbourg) group. In the experiments at the test bench the beam currents of Ti⁵⁺ - 80 mkA and Ti¹¹⁺ - 70 mkA were achieved at different settings of the source. After successful tests two 3 weeks runs with Ti-50 beam were performed at the U-400 cyclotron for the experiments on spectroscopy of super heavy elements. The intensity of the injected beam of 50Ti⁵⁺ was about of 50-60 μA, during experiment the source have shown stable operation. The compound consumption rate was determined to be about of 2.4 mg/h, corresponding to 50Ti consumption of 0.52 mg/h.

TUOMMH01

Improvement of Beam Intensities for Ion Beams with Charge-to-Mass Ratio of 1/3 with Two-Frequency Heating Technique

ion, extraction, ECRIS, plasma

83

A. Kitagawa
NIRS, Chiba-shi, Japan
T.F. Fujita, M. Muramatsu
National Institute of Radiological Sciences, Chiba, Japan
K. Fukushima, N. Sasaki, K. Takahashi, W. Takasugi
AEC, Chiba, Japan
Y. Kato
Osaka University, Graduate School of Engineering, Osaka, Japan

Facilities of heavy ion radiotherapy use carbon ions due to its better biological dose distributions. The necessary energy is over 400MeV/u. A typical accelerator system consisits of a synchrotron and an injector. ECR ion sources have been developed and utilized to produce C⁴⁺ ions. On the other hand, in order to study basic biological researches with a such facility, there are occasionally requirements to produce other ion species like Ar or Fe. Since the injector design is fixed for the acceleration of ions with a charge-to-mass ratio of about 1/3, the ion source must produce Ar¹³⁺ and Fe¹⁹⁺. As a method to improve highly-charged ion production, the technique to feed multiple microwaves with different frequencies is well-known. Our group studied the improvements when the two frequencies are close together each with a power of more than 1kW using the 18GHz NIRS-HEC ECR ion source installed in the Heavy Ion Medical Accelerator in Chiba (HIMAC. Fe and Ni are interesting for a risk study in space environment. We combined the MIVOC method and the two-frequency heating technique for the production of Fe and Ni. The recent test results will be reported.

Slides TUOMMH01 [2.651 MB]

THOMMH03

A Point-like Source of Extreme Ultraviolet Radiation Based on Non-equilibrium Discharge, Sustained by Powerful Radiation of Terahertz Gyrotron

radiation, plasma, ion, vacuum

140

V. Sidorov, M.Yu. Glyavin, S. Golubev, I. Izotov, A.G. Litvak, G. Luchinin, D. Mansfeld, S. Razin, V. Skalyga, A. Vodopyanov
IAP/RAS, Nizhny Novgorod, Russia

Funding: The work was supported by RSF within grant No 14-12-00609.
It is proposed in this paper to use discharge plasma supported by terahertz radiation as a source of EUV light for high-resolution lithography. In this report we discuss the experimental investigation of two types of EUV sources based on discharge, supported by powerful gyrotron radiation. Following investigation results are described: -a series of experiments that demonstrate the generation of EUV light from the vacuum-arc discharge plasma in tin vapor in the magnetic trap heated by gyrotron radiation with a frequency of 75 GHz under electron cyclotron resonance (ECR) conditions; -a numerical modeling of the plasma emissivity in the EUV range, depending on the parameters of the heating radiation is performed; -experimental studies of EUV emission from plasma discharge sustained by strong terahertz powerful radiation in inhomogeneous gas flows are started.

Slides THOMMH03 [1.249 MB]