2011 Particle Accelerator Conference - List of Authors (Bylinskii, I.V.)

Paper

Title

Page

TRIUMF Cyclotron Beam Quality Improvement

1921

I.V. Bylinskii, R.A. Baartman, F.W. Bach, J.F. Cessford, G. Dutto, Y.-N. Rao, L.W. Root, R. Ruegg
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

TRIUMF cyclotron for decades operated at 500 MeV. Recently, the two primary beamlines 1A and 2A, have been reconfigured for running at 480 MeV. The objective was to reduce beam losses caused by the electromagnetic stripping by 30%. The radiation losses reduction was confirmed with both online measurements and residual activation field mapping after 8 month of beam production. In order to improve stability of both primary beams, one of the harmonic coils was configured in Bz-mode to compensate for the beam split ratio fluctuations. Br-mode of this coil and two outer radius trim coils was utilized to correct the beam vertical position at extraction. Moreover, to make the beam spot position on the target stable and insensitive to any uncontrolled movement of the stripper foil due to heat distortion, the beamline front end optics was tuned to compensate the cyclotron's inherent dispersion. Details of these developments and improvements are discussed in the paper.

THOCN3

Electron Linac Photo-fission Driver for the Rare Isotope Program at TRIUMF

S.R. Koscielniak, F. Ames, R.A. Baartman, C.D. Beard, P.G. Bricault, I.V. Bylinskii, Y.-C. Chao, R.J. Dawson, K. Fong, A. Koveshnikov, R.E. Laxdal, F. Mammarella, M. Marchetto, L. Merminga, A.K. Mitra, I. Sekachev, V.A. Verzilov, V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
A. Chakrabarti, S. Dechoudhury, M. Mondal, V. Naik
DAE/VECC, Calcutta, India
D. Karlen
Victoria University, Victoria, B.C., Canada

In July 2010 the Advanced Rare Isotope Laboratory became a funded project. In collaboration with its Canadian member universities TRIUMF was awarded federal and provincial government funds for the construction of a new target building, a connecting tunnel, and an electron linear accelerator in support of its expanding rare isotope program that serves nuclear structure and astrophysics studies as well as materials and medical science. TRIUMF has embarked on the design of a 300 keV thermionic gun, a 10 MeV Injector cryomodule (ICM) and two 20 MeV Accelerator cryomodules, and beam transfer lines. Both the ICM and RF-modulated e-gun are being fast tracked; the former in collaboration with the VECC in Kolkata, India. The c.w. linac is based on super-conducting radiofrequency technology at 1.3 GHz. This paper gives an overview of the facility and accelerator design progress including beam dynamics and diagnostics, cryomodules and cryogenics, high power RF, and machine layout including beam lines.

Slides THOCN3 [2.681 MB]

Paper	Title	Page
WEP231	TRIUMF Cyclotron Beam Quality Improvement	1921
	I.V. Bylinskii, R.A. Baartman, F.W. Bach, J.F. Cessford, G. Dutto, Y.-N. Rao, L.W. Root, R. Ruegg TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	TRIUMF cyclotron for decades operated at 500 MeV. Recently, the two primary beamlines 1A and 2A, have been reconfigured for running at 480 MeV. The objective was to reduce beam losses caused by the electromagnetic stripping by 30%. The radiation losses reduction was confirmed with both online measurements and residual activation field mapping after 8 month of beam production. In order to improve stability of both primary beams, one of the harmonic coils was configured in Bz-mode to compensate for the beam split ratio fluctuations. Br-mode of this coil and two outer radius trim coils was utilized to correct the beam vertical position at extraction. Moreover, to make the beam spot position on the target stable and insensitive to any uncontrolled movement of the stripper foil due to heat distortion, the beamline front end optics was tuned to compensate the cyclotron's inherent dispersion. Details of these developments and improvements are discussed in the paper.

THOCN3	Electron Linac Photo-fission Driver for the Rare Isotope Program at TRIUMF
	S.R. Koscielniak, F. Ames, R.A. Baartman, C.D. Beard, P.G. Bricault, I.V. Bylinskii, Y.-C. Chao, R.J. Dawson, K. Fong, A. Koveshnikov, R.E. Laxdal, F. Mammarella, M. Marchetto, L. Merminga, A.K. Mitra, I. Sekachev, V.A. Verzilov, V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada A. Chakrabarti, S. Dechoudhury, M. Mondal, V. Naik DAE/VECC, Calcutta, India D. Karlen Victoria University, Victoria, B.C., Canada
	In July 2010 the Advanced Rare Isotope Laboratory became a funded project. In collaboration with its Canadian member universities TRIUMF was awarded federal and provincial government funds for the construction of a new target building, a connecting tunnel, and an electron linear accelerator in support of its expanding rare isotope program that serves nuclear structure and astrophysics studies as well as materials and medical science. TRIUMF has embarked on the design of a 300 keV thermionic gun, a 10 MeV Injector cryomodule (ICM) and two 20 MeV Accelerator cryomodules, and beam transfer lines. Both the ICM and RF-modulated e-gun are being fast tracked; the former in collaboration with the VECC in Kolkata, India. The c.w. linac is based on super-conducting radiofrequency technology at 1.3 GHz. This paper gives an overview of the facility and accelerator design progress including beam dynamics and diagnostics, cryomodules and cryogenics, high power RF, and machine layout including beam lines.
	Slides THOCN3 [2.681 MB]