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Relevant bibliographies by topics / Radio Frequency Quadrupole (RFQ)

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Academic literature on the topic 'Radio Frequency Quadrupole (RFQ)'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 September 2023

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Journal articles on the topic "Radio Frequency Quadrupole (RFQ)"

1

Kropachev, Gennady N., Aleksey L. Sitnikov, and Timur V. Kulevoy. "The parameters of radio frequency quadrupole linear accelerator for DARIA project." Cybernetics and Physics, Volume 11, 2022, Number 4 (December 30, 2022): 205–9. http://dx.doi.org/10.35470/2226-4116-2022-11-4-205-209.

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The new proton linear accelerator (linac) with output energy 13 MeV and 100 mA current is under development at NRC “Kurchatov Institute” - ITEP for DARIA project. The linac consists of Radio-Frequency Quadrupole (RFQ) and Drift Tube Linac (DTL) with operating frequency 162.5 MHz. The RFQ is based on 4-vanes structure with shifted coupling windows. DTL has a modular structure and consists of separated individually phased cavities with focusing magnetic quadrupoles located between the cavities. The DTL is based on interdigital H-mode (IHDTL) 5-gaps cavities. The 6D beam matching between RFQ and DTL is provided by magnetic quadrupole lenses and RF-bunchers. The paper presents results of the radio-frequency (RF) design, thermal analyses and RF tuning of RFQ linac accelerating structure.

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Wang, Z., Q. Y. Tan, Y. R. Lu, S. L. Gao, Y. Xia, S. Liu, M. Y. Han, and J. Zhao. "Design and cold measurements of a coupled RFQ-SFRFQ cavity." Journal of Instrumentation 17, no. 02 (February 1, 2022): T02008. http://dx.doi.org/10.1088/1748-0221/17/02/t02008.

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Abstract Based on the previous research on 26 MHz coupled RFQ-SFRFQ (Radio Frequency Quadrupole-Separated-function Radio Frequency Quadrupole) cavity, we propose a higher frequency coupled RFQ-SFRFQ structure to accelerate proton beam from 35 keV to 2.5 MeV in continuous wave (CW) mode. RFQ and SFRFQ are placed in a single cavity, which greatly reduces the size of the accelerator. Instead of two RF amplifiers, only one RF amplifier is needed with this structure, as a result, this structure becomes more compact. The beam dynamic design and electromagnetic simulation have been accomplished. A 104 MHz coupled RFQ-SFRFQ aluminum model cavity has been constructed and tested at low power successfully, and the results show good agreement with the simulations.

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Tan, Qiuyun, Kun Zhu, Pingping Gan, Qi Fu, Haipeng Li, Matt Easton, Shuo Liu, et al. "Beam commissioning and analysis of a continuous-wave window-type deuteron radio-frequency quadrupole." International Journal of Modern Physics E 29, no. 02 (February 2020): 1950111. http://dx.doi.org/10.1142/s0218301319501118.

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As high-intensity beams are required for various applications, high-power, high-current, continuous-wave (CW) radio-frequency quadrupole (RFQ) accelerators have become a research focus in recent years and also a direction for development in the future. To master and accumulate the advanced technology in design, fabrication and operation of high-current CW RFQs, the RFQ group at Peking University has built a window-type CW RFQ, operating at 162.5[Formula: see text]MHz, to accelerate a 50-mA deuteron beam from 50[Formula: see text]keV to 1[Formula: see text]MeV. It is the first relatively high-frequency window-type CW RFQ in the world. A [Formula: see text] ion beam extracted from an electron cyclotron resonance (ECR) ion source was used for the beam commissioning because deuteron beam acceleration will produce a serious radiation risk. We compared and analyzed the measurement results obtained during the beam commissioning with simulations. The data show good consistency in many respects. For the discrepancies, we explain the issues in detail. We achieved stable and robust acceleration of about 1.5[Formula: see text]mA CW [Formula: see text] for 1[Formula: see text]h. Finally, we discuss the differences between [Formula: see text] ion beam acceleration and deuteron beam acceleration.

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Torims, Toms, Guntis Pikurs, Samira Gruber, Maurizio Vretenar, Andris Ratkus, Maurizio Vedani, Elena López, and Frank Brückner. "First Proof-of-Concept Prototype of an Additive Manufactured Radio Frequency Quadrupole." Instruments 5, no. 4 (November 29, 2021): 35. http://dx.doi.org/10.3390/instruments5040035.

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Continuous developments in additive manufacturing (AM) technology are opening up opportunities in novel machining, and improving design alternatives for modern particle accelerator components. One of the most critical, complex, and delicate accelerator elements to manufacture and assemble is the radio frequency quadrupole (RFQ) linear accelerator, which is used as an injector for all large modern proton and ion accelerator systems. For this reason, the RFQ has been selected by a wide European collaboration participating in the AM developments of the I.FAST (Innovation Fostering in Accelerator Science and Technology) Horizon 2020 project. The RFQ is as an excellent candidate to show how sophisticated pure copper accelerator components can be manufactured by AM and how their functionalities can be boosted by this evolving technology. To show the feasibility of the AM process, a prototype RFQ section has been designed, corresponding to one-quarter of a 750 MHz 4-vane RFQ, which was optimised for production with state-of-the-art laser powder bed fusion (L-PBF) technology, and then manufactured in pure copper. To the best of the authors’ knowledge, this is the first RFQ section manufactured in the world by AM. Subsequently, geometrical precision and surface roughness of the prototype were measured. The results obtained are encouraging and confirm the feasibility of AM manufactured high-tech accelerator components. It has been also confirmed that the RFQ geometry, particularly the critical electrode modulation and the complex cooling channels, can be successfully realised thanks to the opportunities provided by the AM technology. Further prototypes will aim to improve surface roughness and to test vacuum properties. In parallel, laboratory measurements will start to test and improve the voltage holding properties of AM manufactured electrode samples.

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Heimrich, B., H. J. Laue, and H. Wollnik. "RFQ final-focusing lens at the GSI." Laser and Particle Beams 9, no. 4 (December 1991): 863–67. http://dx.doi.org/10.1017/s0263034600006601.

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For first investigations of hot dense matter produced by intense heavy-ion beams we built an electrostatic quadrupole doublet that focused Ar+and Kr+ ions of 45 keV/amu after acceleration through the radio frequency quadrupole (RFQ) accelerator at the GSI onto a small spot of approximate area 1 mm2. This beam then deposited a specific beam power of about 1.5 GW/g to targets.

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Laface, E., C. G. Maiano, R. Zeng, and O. Piquet. "X-Rays energy measurements during the RFQ conditioning at the European Spallation Source." Journal of Physics: Conference Series 2420, no. 1 (January 1, 2023): 012091. http://dx.doi.org/10.1088/1742-6596/2420/1/012091.

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Abstract The Radio Frequency Quadrupole (RFQ) was conditioned at the European Spallation Source during spring 2021. We used part of the conditioning time to estimate the accelerating potential within the RFQ analyzing the x-rays bremsstrahlung radiation emitted by the electrons released and accelerated in the RFQ. The results of these measurements are in good agreement with the theoretical prediction.

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Kaizer, B., A. Barak, Y. Buzaglo, H. Dafna, E. Farber, I. Gavish, N. Goldberger, et al. "Upgrade of the 4-rod radio frequency quadrupole for SARAF Phase II Linac." Journal of Instrumentation 17, no. 08 (August 1, 2022): T08008. http://dx.doi.org/10.1088/1748-0221/17/08/t08008.

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Abstract The 176 MHz 4-rod radiofrequency quadrupole (RFQ) is the crucial part of the Soreq Applied Research Accelerator Facility (SARAF) injector and must be able to operate at RF powers up to 190 kW continuous wave and transport 5 mA proton and deuteron beams. The SARAF Phase I RFQ is planned for use in Phase II. The period between the termination of Phase I and the installation of Phase II provided an opportunity to introduce RFQ improvements to fully meet the Phase II requirements. These upgrades and improvements are presented in this report together with the results of the recent conditioning campaigns.

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Wang, Chao, Weiping Dou, Zhijun Wang, Chi Feng, Wangsheng Wang, Weilong Chen, Yongzhi Jia, et al. "Research of beam matching on RFQ for CADS proton linac." International Journal of Modern Physics E 30, no. 04 (April 2021): 2150027. http://dx.doi.org/10.1142/s0218301321500270.

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For a high-power Radio Frequency quadrupole (RFQ) accelerator, it is often necessary to design a large acceptance to decrease the beam loss inside the RFQ cavity. This could allow a mismatched beam to transmit to downstream cavities, which causes beam loss along the downstream linac. Finding the matching condition of beam and RFQ is of great significance. The matching point of RFQ can be confirmed by measuring the emittance at the upstream and downstream of RFQ, which takes a long time, so the transmission efficiency scanning method is supposed to find. This paper compares the relationship among emittance, transmission efficiency, and matching point on CADS[Formula: see text] RFQ. The results show that the weighted average point of high transmission efficiency could be regarded as the matching point of RFQ. This conclusion can be widely used in beam commissioning, and the Transmission Efficiency Scanning-matching (TESM) code has been developed on other RFQs.

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Kropachev, Gennady N., Timur V. Kulevoy, Alexei L. Sitnikov, Ekaterina R. Khabibullina, and Stanislav V. Vinogradov. "Beam dynamics of the project DARIA RFQ." Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes 18, no. 4 (2022): 568–82. http://dx.doi.org/10.21638/11701/spbu10.2022.411.

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The project DARIA (neutron source dedicated to applied research and industrial applications) directed to the development of compact neutron generators for universities, scientific centers and industry. In framework of the DARIA project, the 3 MeV, 162.5 MHz and 100mA pulse proton Radio Frequency Quadrupole (RFQ) is under development at National Research Centre "Kurchatov Institute". In this article the main aspects of the beam dynamics design of this RFQ are described, namely the choice of RFQ parameters, the optimization of the transport and the transmission. Results of beam dynamic simulation in RFQ are presented.

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Gaur, Rahul, and Vinit Kumar. "Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator." EPJ Nuclear Sciences & Technologies 4 (2018): 9. http://dx.doi.org/10.1051/epjn/2018004.

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We present the beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz H− radio frequency quadrupole (RFQ) accelerator for the proposed Indian Spallation Neutron Source project. We have followed a design approach, where the emittance growth and the losses are minimized by keeping the tune depression ratio larger than 0.5. The transverse cross-section of RFQ is designed at a frequency lower than the operating frequency, so that the tuners have their nominal position inside the RFQ cavity. This has resulted in an improvement of the tuning range, and the efficiency of tuners to correct the field errors in the RFQ. The vane-tip modulations have been modelled in CST-MWS code, and its effect on the field flatness and the resonant frequency has been studied. The deterioration in the field flatness due to vane-tip modulations is reduced to an acceptable level with the help of tuners. Details of the error study and the higher order mode study along with mode stabilization technique are also described in the paper.

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Dissertations / Theses on the topic "Radio Frequency Quadrupole (RFQ)"

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Pratt, Devin Baker. "Array Analysis of Radio Frequency Interference Cancelation Requirements for a Land Mine Detection System." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1090.pdf.

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Gulick, Sidney Luther. "Ion injection into radio frequency quadrupole field devices." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66038.

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Sieber, Thomas. "Entwicklung von 4-Rod- und IH-Radio-Frequenz-Quadrupol-(RFQ)-Beschleunigern für radioaktive Ionenstrahlen bei REX-ISOLDE und MAFF." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963254863.

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Sieber, Thomas. "Entwicklung von 4-Rod- und IH- Radio-Frequenz-Quadrupol (RFQ)-Beschleunigern für radioaktive Ionenstrahlen bei REX-ISOLDE und MAFF." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-4557.

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Lambo, Ricardo. "An electrostatic decelerator for a high-field radio-frequency quadrupole ion guide beam cooler /." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98743.

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An electrostatic decelerator system capable of bringing to rest a continuous 60 keV DC ion-beam was developed and tested as to its suitability as the first part of a high-performance RFQ buffer gas beam cooler. The decelerator is intended to decelerate high-energy ions for injection into an RFQ ion-guide capable of producing bunches of ions at a repetition rate up to 100 Hz. Simulations of the ion motion through the decelerator and into the guide were made to test the design, and the decelerator was then constructed following the parameters used in the simulations. Although problems, such as sparking between the electrode surfaces of the decelerator, prevented it from being operated at potentials high enough to decelerate a 60 keV beam, its implementation proved, as in the simulations, that high-energy ions could indeed be decelerated to energies that would allow for their injection into an RFQ ion-guide by this design.

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Blomeley, Laura Gail. "First tests of a square wave radio frequency quadrupole cooler and buncher for TITAN." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100773.

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A high frequency, large amplitude helium filled RFQ (Radio Frequency Quadrupole) beam cooler and buncher was developed and tested for use in the TITAN (TRIUMF's Ion Trap for Atomic and Nuclear science) Penning trap mass spectrometer facility. This device will cool and bunch radioactive ion beams for use in TITAN's high precision mass measurements of short-lived isotopes and other experiments. A test stand was built to test the transmission and properties of ions from a surface ion source through injection optics, the linear Paul trap RFQ and the extraction optics in both continuous and pulsed modes. The efficiency of the device was determined to be on the order of 60% in continuous mode. The present measurements confirm a transverse emittance of the extracted beam in bunched mode operation of 4 pi-mm-mrad at an extraction energy of 4 keV.

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Gueye, Serigne Bira. "Electron-Radio-Frequency Quadrupole (ERFQ) linear accelerator: theory, design and measurements for the GHz region." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980255554.

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Boudreau, Chantal. "The transport of radioactive ions in a gas filled radio frequency quadrupole mass filter system /." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32979.

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The technique of ion transfer in radio frequency quadrupole (RFQ) systems is described. Computer simulations of the gas filled RFQ mass filter system located at Argonne National Laboratory (ANL) in Argonne, Il. are performed and compared to data obtained from the transfer of radioactive ions produced from the fragmentation of an off-line 252Cf fission source put before the system. The device is used to transport radionuclides created in on-line fusion evaporation reactions from a 150 torr helium filled gas cell to a high vacuum mass spectrometer. Operation parameters and performance results for the gas filled RFQ mass filter system are presented. In addition, the first on-line transfer of a radioisotope resulting in a precise mass measurement using the Canadian Penning Trap (CPT) mass spectrometer is discussed.

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Babcock, Carla. "Collinear laser spectroscopy of manganese isotopes using the radio frequency quadrupole cooler and buncher at ISOLDE." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/3000461/.

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The hyperfine structure of the odd-even ⁵¹⁻⁶³Mn isotopes (N = 26 - 38) were measured using bunched beam collinear laser spectroscopy with the COLLAPS experimental setup at ISOLDE, CERN. The properties of these nuclei were investigated over the course of two experiments. During the first experiment, nuclear spins and magnetic dipole moments were extacted from spectroscopy on manganese atoms. These nuclear properties were then compared to the predictions of two large-scale shell model effective interactions (GXPF1A [1, 2] and LNPS [3]) which use different model spaces. In the case of 61,63Mn, these results show the increasing importance of neutron excitations across the proposed N = 40 subshell closure, and of proton excitations across the Z = 28 shell gap. These measurements provide the first direct proof that proton and neutron excitations across shell gaps are playing an important role in the ground state wave functions of the neutron-rich Mn isotopes. The electric quadrupole moment provides complementary information to the magnetic dipole moment, since it is able to directly probe the degree of collectivity and deformation in a nucleus, however sensitivity limitations during the first experiment prevented the quadrupole moments from being accurately determined. To overcome these limitations, it was necessary to find an electronic transition with sensitivity to the quadrupole interaction. A suitable transition was found in the ion from a metastable state and optical pumping in ISOLDE's cooler and buncher, ISCOOL, was used to populate this state for the second manganese experiment. This is the first use of the in-cooler optical pumping technique at ISOLDE, and required an overhaul of ISCOOL. During the second experiment, the spectroscopic quadrupole moments of the isotopes were extracted from the measured hyperfine spectra of manganese ions. The sensitivity and spectroscopic efficiency were increased as compared to the atomic experiment. The extracted quadrupole moments were again compared to predictions from the GXPF1A and LNPS effective interactions. The inclusion of the 1 vgg/2 and 2 vd5/2 orbitals in the model space were shown to be necessary to reproduce the experimentally observed onset of quadrupole deformation.

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Podadera, Aliseda Ivan. "New developments on preparation of cooled and bunched radioactive ion beams at ISOL-Facilities: the ISCOOL project and the rotating wall cooling." Doctoral thesis, Universitat Politècnica de Catalunya, 2006. http://hdl.handle.net/10803/6619.

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Last years have become very productive for the research, construction and development of new facilities devoted to the production of beams with exotic radioisotopes (Radioactive Ion Beams, RIB). These beams are later used for experiments in fields like nuclear physics, atomic physics, astrophysics or medicine, among others. Within this kind of facilities, the ISOL facilities stand out. They are based on the on-line separation of radioactive isotopes produced in nuclear reactions between a target and a high-energy proton beam. The ISOL method was the pioneer for these facilities and it has kept up to now the leadership of RIB facilities. The main reason is ISOLDE, an ISOL facility located at CERN, the largest accelerator complex in the world, where this doctoral thesis has been carried out.
The first innovation which is described is the design of an ion trap for the cooling and bunching of RIB's for ISOLDE, the so-called ISCOOL (ISOLDE COOLer). It is an Radio Frequency Quadrupole ion Cooler and Buncher (RFQCB), device based on the Paul traps. In these traps, the ions are confined in the three dimensions by electric fields. The ions are confined on the transverse plane with the pseudopotential well created by the Radio Frequency Quadrupole (RFQ) and focused on the longitudinal axis. At the same time, a gas (normally helium) fills the chamber with a pressure between 10-3 and 10-2 mbar. The collisions between the atoms or molecules of the gas and the ions. In addition, to drive the ions to the extraction of the RFQCB, an axial electric field is created by segmented electrodes. Different voltages are applied to these electrodes in order to choose the shape of the field. The shape can be chosen to create a potential well close to the extraction from the RFQCB in which the ions are accumulated and extracted as bunches, by the fast-switch of the voltages applied to the axial electrodes.
The new ISCOOL will be installed as a permanent device of the ISOLDE beam lines.

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Books on the topic "Radio Frequency Quadrupole (RFQ)"

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Wells, Nikita. Radio frequency quadrupole and alternating phase focusing methods used in proton linear accelerator technology in the USSR. Santa Monica, CA: Rand, 1985.

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Book chapters on the topic "Radio Frequency Quadrupole (RFQ)"

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"Radio-Frequency Quadrupole Linac." In Principles RF Linear Accelerators, 225–57. Weinheim, Germany: Wiley-VCH Verlag GmbH, 2008. http://dx.doi.org/10.1002/9783527618408.ch8.

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Nie, Yuancun, Yuanrong Lu, Xueqing Yan, and Jiaer Che. "Radio Frequency Quadrupole Accelerator: A High Energy and High Current Implanter." In Ion Implantation. InTech, 2012. http://dx.doi.org/10.5772/33823.

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De Rújula, Alvaro. "Some Instruments of Micro-Physics." In Enjoy Our Universe, 110–15. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198817802.003.0020.

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The destructive limits of microscopes. Ernest Lawrence’s first “cyclotron.” Linear and circular accelerators and colliders, their advantages and disadvatages, and how they work. Accelerating radio-frequency cavities, bending dipoles, and focusing quadrupole magnets. The accelerator comprex at CERN. The Large Hadron Collider (LHC).

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Conference papers on the topic "Radio Frequency Quadrupole (RFQ)"

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YOUNG, L. M., G. O. BOLME, J. D. GILPATRICK, K. F. JOHNSON, W. P. LYSENKO, P. M. MCGEHEE, S. NATH, et al. "LOW-ENERGY DEMONSTRATION ACCELERATOR (LEDA) RADIO-FREQUENCY QUADRUPOLE (RFQ) RESULTS." In Proceedings of the 2nd ICFA Advanced Accelerator Workshop. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812792181_0033.

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SMITH, H. V., J. D. GILPATRICK, K. F. JOHNSON, W. P. LYSENKO, P. M. McGEHEE, D. E. REES, A. H. REGAN, et al. "UPDATE ON THE COMMISSIONING OF THE LOW-ENERGY DEMONSTRATION ACCELERATOR (LEDA) RADIO-FREQUENCY QUADRUPOLE (RFQ)." In Proceedings of the 2nd ICFA Advanced Accelerator Workshop. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812792181_0031.

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Guharay, Samar K., C. K. Allen, and Martin P. Reiser. "Electrostatic focusing and RFQ (radio frequency quadrupole) matching system for a low-energy H- beam." In Optics, Electro-Optics, and Laser Applications in Science and Engineering, edited by Howard E. Brandt. SPIE, 1991. http://dx.doi.org/10.1117/12.43535.

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Guzek, Jacok, U. A. S. Tapper, W. R. McMurray, and John I. W. Watterson. "Characterization of the9Be(d,n)10B reaction as a source of neutrons employing commercially available radio frequency quadrupole (RFQ) linacs." In Fifth International Conference on Applications of Nuclear Techniques: Neutrons in Research and Industry, edited by George Vourvopoulos. SPIE, 1997. http://dx.doi.org/10.1117/12.267963.

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Sako, Hiroyuki. "Current Status and Performance of the J-PARC Accelerators." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75557.

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J-PARC (Japan Proton Accelerator Research Complex) is a multi-purpose research facility for materials and life sciences, nuclear and particle physics, and nuclear engineering with extremely high power proton beams of 1 MW. The accelerator complex consists of a 400-MeV linac, a 3-GeV Rapid Cycling Synchrotron (RCS), and a 50-GeV Main Ring synchrotron (MR). Its goals are to provide MW-class beams at 3 GeV and at several 10 GeV, while it is a challenge to localize and suppress beam loss to the level to allow hands-on maintenance of accelerator components. The RCS scheme is adopted to realize them, which is advantageous over conventional Accumulation Ring (AR) regarding less beam loss problems due to lower beam current and easier construction and operation of a linac. RCS, however, required various challenging technologies such as ceramic ducts to reduce eddy current effects, high field Radio Frequency (RF) system, and paint injection technique (an injection scheme to reduce phase space density of the beam) to reduce space charge effects. The linac has also unique technologies to minimize beam loss, such as compact electromagnet Drift Tube Quadrupoles (DTQ’s) to control beam envelopes precisely, and a fast beam suspending system in Machine Protection System (MPS) with Radio Frequency Quadrupole linac (RFQ). The beam commissioning of the linac started in Nov. 2006, and its design energy of 181 MeV in the first construction phase was achieved in Jan. 2007. RCS beam commissioning started in Sep. 2007 and the beam was accelerated to the designed energy of 3 GeV in Oct. 2007. MR beam commissioning started in May 2008, and the beam acceleration to 30 GeV was established in Dec. 2008. The first neutron and muon beams were produced in May and Sep. 2008, respectively, at Materials and Life science experimental Facility (MLF). The linac commissioning has resulted in very stable beam with short down time. RCS commissioning quickly achieved beam acceleration and extraction, and paint injections are being studied intensively. RCS recorded the highest beam power of 0.21 MW in Sep. 2008 with beam loss well localized at the collimators. The linac beam energy will be upgraded to 400 MeV with Annular Coupled Structure linac (ACS) in order to increase the beam power to 1 MW. In the second construction phase, upgrade of the linac with 600-MeV Super-Conducting Linac (SCL) for Accelerator-Driven nuclear waste transmutation System (ADS) and upgrade of MR energy from 30 to 50 GeV are planned.

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Soliman, Ahmed, Sander Weinreb, Ganesh Rajagopalan, Chris Eckert, and Lawrence Hilliard. "Quadruple-ridged flared horn feed with internal RFI band rejection filter." In 2016 Radio Frequency Interference (RFI). IEEE, 2016. http://dx.doi.org/10.1109/rfint.2016.7833543.

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Nie, Y. C., Y. R. Lu, S. L. Gao, K. Zhu, X. Q. Yan, Z. Y. Guo, J. X. Fang, and J. E. Chen. "Simulation Study on 104 MHz Radio Frequency Quadrupole Accelerator." In 2010 International Conference on E-Product E-Service and E-Entertainment (ICEEE 2010). IEEE, 2010. http://dx.doi.org/10.1109/iceee.2010.5661504.

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Bollen, G., J. Dilling, A. M. Ghalambor Dezfuli, S. Henry, F. Herfurth, A. Kellerbauer, T. Kim, et al. "A radio frequency quadrupole ion beam buncher for ISOLTRAP." In EXOTIC NUCLEI AND ATOMIC MASSES. ASCE, 1998. http://dx.doi.org/10.1063/1.57380.

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Liu, Guoqing, Yi Jiang, Jian Li, and Geoffrey A. Barrall. "Radio-frequency interference suppression for the quadrupole-resonance confirming sensor." In Defense and Security, edited by Russell S. Harmon, J. Thomas Broach, and John H. Holloway, Jr. SPIE, 2004. http://dx.doi.org/10.1117/12.541950.

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Stokes, R. H., and G. N. Minerbo. "Scheme to funnel ion beams with a radio-frequency quadrupole." In AIP Conference Proceedings Vol. 139. AIP, 1986. http://dx.doi.org/10.1063/1.35581.

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Reports on the topic "Radio Frequency Quadrupole (RFQ)"

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Kishiyama, K., S. Shen, D. Behne, N. G. Wilson, D. Schrage, and R. Valdiviez. Testing of vacuum pumps for the Accelerator Production of Tritium/Low Energy Demonstration Accelerator radio frequency quadrupole. Office of Scientific and Technical Information (OSTI), December 1998. http://dx.doi.org/10.2172/335188.

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