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Beam Dynamics Feasibility Study for an RFQ Sub-harmonic Pre-buncher at REX-ISOLDE / Magdau, I B ; Fraser, M
The feasibility of using an external multi-harmonic buncher placed before the existing RFQ at REX-ISOLDE to increase the bunch spacing of post-accelerated beams at HIE-ISOLDE was confirmed. [...]
- 2013. - 57 p.
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Design Study for 10MHz Beam Frequency of Post-Accelerated RIBs at HIE-ISOLDE / Fraser, M A (CERN) ; Calaga, R (CERN) ; Magdau, I B (CERN)
An increased bunch spacing of approximately 100 ns is requested by several research groups targeting experimental physics at HIE-ISOLDE. A design study testing the feasibility of retrofitting the existing 101.28MHz REX (Radioactive ion beam EXperiment) RFQ [1] with a subharmonic external pre-buncher at the ISOLDE radioactive nuclear beam facility has been carried out as a means of decreasing the beam frequency by a factor of 10. [...]
CERN-ACC-2013-0200.- Geneva : CERN, 2013 - 3 p. Fulltext: PDF;
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.3933
REX-ISOLDE RFQ Beam Dynamics Studies using CST EM Studio / Fraser, M A ; Calaga, R
The original CNC milling files used to machine the electrodes of the REX-ISOLDE RFQ were acquired in late 2012 and electrostatic simulations were carried out using CST EM Studio in order to attain a 3D field map of the electric fields in the region around the beam axis. [...]
- 2014. - 19 p.
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Beam Dynamics Studies of a Multi-harmonic Buncher for 10 MHz Post-accelerated RIBs at HIE-ISOLDE / Fraser, M A
A comprehensive beam dynamics study was carried out to assess the performance of a proposed bunching system at HIE-ISOLDE to increase the bunch spacing of post-accelerated radioactive ion beams by a factor of 10 to approximately 100 ns. [...]
- 2014. - 47 p.
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Status of the Design Study for 10 MHz Post-accelerated Radioactive Ion Beams at HIE-ISOLDE / Fraser, Matthew (CERN) ; Calaga, Rama (CERN)
A ten-fold increase in the bunch spacing of post-accelerated radioactive ion beams has been requested by several research groups at ISOLDE, CERN in order for experiments to use time-of-flight particle identification and background suppression techniques. It is proposed to bunch externally into the existing REX-ISOLDE RFQ at a sub-harmonic frequency of 10.128 MHz to produce the desired 100 ns bunch separation with minimal loss in transmission. [...]
CERN-ACC-2014-373.- 2014 - 4 p. - Published in : (2014) , pp. THPP030 Fulltext: thpp030 - PDF; thpp030_2 - PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.THPP030
Longitudinal Emittance Measurements at REX-ISOLDE / Fraser, MA ; Pasini, M ; Piselli, E ; Posocco, PA ; Voulot, D ; Wenander, F ; Zocca, F
The rms longitudinal emittance at output from the REX-ISOLDE RFQ was measured as 0.34 ± 0.08 π ns keV/u and at entry to the 7G3 as 0.36 ± 0.04 π ns keV/u using the three gradient technique; systematic errors are not included but are thought to be approximately 10%. [...]
- 2011. - 28 p.
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HIE-LINAC and Beam lines for HIE-ISOLDE experiments / Pasini, M
The documents gives a brief description of the upgrade of the present REX-ISOLDE linac with a proposal for two possible solutions for the beam lines at high energy..
- 2008. - 15 p.
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Transverse beam profile measurements with slit scanner and Faraday cup at REX-ISOLDE / Cantero, E D ; Bravin, E ; Lanaia, D ; Sosa, A ; Voulot, D
The transverse profiles for the HIE-ISOLDE beams will be measured using a system composed of a scanning slit and a Faraday cup. [...]
- 2014. - 9 p.
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Benchmarking of the REX-ISOLDE RFQ Beam Dynamics Simulations / Fraser, MA ; Pasini, M ; Posocco, PA
The Institute of Applied Physics (IAP, Goethe-University, Frankfurt am Main) version of the PARMTEQM code used to design the REX-ISOLDE RFQ was benchmarked with PARMTEQM v3.07 in order to validate its beam dynamics design. [...]
- 2011. - 19 p.
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REX-ISOLDE accelerates the first isomeric beams
Published in: CERN Courier Volume 45, Number 10, December 2005
Geneva : CERN, 2005

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