Beam current deterioration in a 13.56 MHz RF negative ion source

Publication

Anand George, Stephane Melanson and Morgan Dehnel, "Beam Current Deterioration in a 13.56 MHz RF Negative Ion Source", Journal of Instrumentation, Volume 20, May 2025

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Full list of D-Pace publications

Beamline, Magnets, Diagnostics, & Target Systems

Year	Document
2011	M.P. Dehnel, “Industrial Beamline Technologies and Approaches”, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1336, pp. 21-25, 2011.	view document
2011	J.M. Huser, M.R. Cackette, L. Wheeler, M.P. Dehnel, “Software for Radiopharmaceutical Production Control”, XII Turku PET Symposium, p. 96, Turku, Finland, 2011.	view document
2008	M. Haji-Saeid, P. Mra, T.J. Ruth, D.J. SChleyer, P.V. Winkel, M.M. V.R. Capote-Noy, L. Carroll, J.C. Clark, J.J. Comor, M. Dehnel, R. Ferrieri, R.D. Finn, J.S. Fowler, M.J. Schueller, "Cyclotron Produced Radionuclides: Principles and Practice", IAEA, December 2008; ISBN: 978-92-0-100208-2 Related products TRIUMF Licensed Standard Solid Target Station	view document
2007	M. Dehnel et al,“Practical Considerations in the Design of a High Current Commercial H¯ Cyclotron”, APAC 2007, pp.625-627, Indore, India, 2007.	view document
2001	K.L. Erdman et al, “Compact Commercial 9 MeV Deuteron Cyclotron with Pulsed Beam”, 16th Int’l Conf. on Cyclotrons and their App’s, East Lansing, MI, USA, 2001.	view document
1998	M.P. Dehnel et al, “Measurements of Beam Emittance, Accelerated RF Phase Band, and Centering in a 1 MeV Test Cyclotron”, 15th Int’l Conf. on Cyclotrons and their App’s, 236-238, Caen, France, 1998.	view document
1998	K.L. Erdman et al, “Initial Operation of the Sherbrooke Ebco 19 MeV Cyclotron”, 15th Int’l Conf. on Cyclotrons and their App’s, 327-330, Caen, France, 1998.	view document
1998	M.P. Dehnel et al, “Measurements of Injected Beam Deflections at the Exit of a Cyclotron Inflector as a Function of Applied Field or Beam Energy Perturbations”, 15th Int’l Conf. on Cyclotrons and their App’s, 239-242, Caen, France, 1998.	view document
1997	M.P. Dehnel et al, “The Experimental Characterization of a Compact H¯ Cyclotron’s Spiral Inflector”, Nucl. Instrum. & Meth. in Phys., Vol. 397, Iss. 2-3, 1997.	view document
1992	M.P. Dehnel et al, “The TR16/8, A Dual Particle Cyclotron for Clinical Isotope Production”, Proc. 3rd European Part. Acc. Conf., Vol. 2, pp. 1682-1684, Berlin, 1992.	view document
1990	B.F. Milton et al, “First Beam in a New Compact Intense 30 MeV H¯ Cyclotron for Isotope Production”, Proc. 2nd European Part. Acc. Conf., Vol. 2, pp. 1812-1814, Nice, 1990.	view document

Ion Source & Injection Systems

Year	Document
2025	Anand George, Stephane Melanson and Morgan Dehnel, "Beam Current Deterioration in a 13.56 MHz RF Negative Ion Source", Journal of Instrumentation, Volume 20, May 2025	view document
2024	M. Dehnel, S. Melanson, A. George, C. Hoehr, N. Savard, “H‾, D‾ & He++ Source Developments for Medical Isotope Production Cyclotrons”, 2024 International Topical Meeting on Nuclear Applications of Accelerators”, March 17-21, 2024, Norfolk, Virginia, USA.	view document
2024	M. Dehnel, “Postface,” in Physics and Applications of Negative Ion Sources (Springer Series on Atomic, Optical, and Plasma Physics 124), M. Bacal, Ed., London, UK: Springer Nature, 2023, pp. 609-617.	view document
2023	N. Savard, J. Munich, M. Dehnel. "Extraction of High Charge State Neon and Krypton from the D-Pace Penning Ion Source Test Stand." IPAC2023, May 7 – 12, 2023, Venice, Italy	view document
2022	A.George, S.Melanson, J.Munich, M.Dehnel, N.G.R.Broderick. “Influence of Plasma Electrode Aperture Size on Emittance From a Multicusp Ion Source.” Proceedings of the 13th International Particle Accelerator Conference (IPAC2022), Bangkok, Thailand, 12–17 June 2022. JACoW Publishing, 2022, pp. 1813-1815.	view document
2022	N. Savard, J. Munich, M. Dehnel. “Extraction of High-charge State Argon and α-Particles from D-Pace Penning Ion Source Test Stand” Proceedings of the 13th International Particle Accelerator Conference (IPAC2022), Bangkok, Thailand, 12–17 June 2022. JACoW Publishing, 2022, pp. 1816-1818.	view document
2022	N. Savard, G. Fubiani, M. Dehnel, "Comparison of Langmuir Probe and Optical Emission Spectroscopy on a Volume-Cusp Filament Ion Source using Helium", Rev. Sci. Instrum. 93, 103303 (2022).	view document
2022	S. Melanson, A. George, T. Stewart and M. Dehnel, “Modification of an H¯ Ion Source for the Extraction of Negative and Positive Ions.” 26th International Conference on the Application of Accelerators in Research & Industry (CAARI) & 53rd Symposium of Northeastern Accelerator Personnel (SNEAP), Denton, Texas, USA, October 30 – November 3, 2022.	view document
2022	Anand George, Stephane Melanson, Cornelia Hoehr and Morgan Dehnel. “Plasma Chamber Erosion in a CW H− Ion Source Powered by a Planar External RF Antenna”. 18th Workshop on Targetry and Target Chemistry (WTTC 18) , Whistler, Canada, August 21-26, 2022. Abstracts, pp. 192 - 194.	view document
2022	A. Paul, S. Melanson, T. Junginger, M. Dehnel. “Creating negative ion beams from neutral gases using a negative hydrogen ion source.” 8^th International symposium on Negative Ions, Beams and Sources (NIBS2022). Padova, Italy, 2-7 Oct 2022. In press.
2022	P. Jackle, A. Bunevich, D. S. Lopez, K. L. Kavanagh, M. Dehnel. “Development of a Negative Helium Ion Source with Non-Metallic Charge Exchange.” 2024 JINST 19 C01014	view document
2021	Anand Mathai George, Taneli Kalvas, Stephane Melanson, Morgan Dehnel, N G R Broderick. "H- beam emittance analysis in a multicusp ion source." Proceedings for 19th International Conference on Ion Sources (ICIS2021), Online. J. Phys.: Conf. Ser. 2244 012038.	view document
2021	Robert Welton, Dan Bollinger, Morgan Dehnel, Ilija Draganic, Dan Faircloth, Baoxi Han, Jacques Lettry, Martin Stockli, Olli Tarvainen, Akira UENO. "Negative hydrogen ion sources for particle accelerators: Sustainability issues and recent improvements in long-term operations." Proceedings for 19th International Conference on Ion Sources, 2022 J. Phys.: Conf. Ser. 2244 012045.	view document
2021	Nicolas Savard, Alexey Groutso, Stephane Melanson, Dave Potkins, Morgan Dehnel. "Trapping secondary electrons in ExB drift for an alpha generating penning ion source." Proceedings for 19th International Conference on Ion Sources (ICIS2021). Online. J. Phys.: Conf. Ser. 2244 012104.	view document
2020	Anand George , Taneli Kalvas, Stephane Melanson, Nicolas Savard, Dave Potkins, Morgan Dehnel , and Neil G. R. Broderick "A Study of the Optical Effect of Plasma Sheath in a Negative Ion Source Using IBSIMU Code" Review of Scientific Instruments (Vol.91, Issue 1)	view document
2019	M. Almalki, A. Alrashdi, S. Alshammari, A. Jabr, A. Alabdusalam, M. Dehnel, T. Stewart "Ion Optical Calculations of High Resolution Analyzing Magnet System for Heavy Molecular Ions at KACST" Proceedings of the 10th International Particle Accelerator Conference (IPAC'19), Melbourne, Australia 19 – 24 May 2019	view document
2019	A. George, S. Melanson, D. Potkins, T. Stewart, M. Dehnel, Y. Shimabukuro, N.G.R. Broderick, "Improvements in RF Multicusp Negative Ion Source" Proceedings of the 10th International Particle Accelerator Conference (IPAC'19), Melbourne, Australia 19 – 24 May 2019	view document
2019	N. Savard, D. Potkins, P. Jackle, J. Theroux, S. Melanson, G. Marcoux, M. Dehnel, "Development of a Penning Ion Source Test Stand for Production of Alpha Particles" Proceedings of the 10th International Particle Accelerator Conference (IPAC'19) pp. 1932-1935, Melbourne, Australia 19 – 24 May 2019	view document
2018	A.George, S. Melanson, D. Potkins, M. Dehnel, H. McDonald, C. Philpott & N. Broderick, “Effect of Magnetic Filter in a Volume Production Multicusp Ion Source”, In AIP Conference Proceedings, vol. 2052, no. 1, p. 050015. AIP Publishing, 2018.	view document
2018	A. George, S. Melanson, D. Potkins, M. Dehnel, N. Broderick, H. McDonald, C. Philpott, "Optimisation of D^- Ion Production in a Multicusp Ion Source",Proceedings of the 9th International Particle Accelerator Conference(IPAC2018), Vancouver, BC, Canada, April 24-May 4 2018, p. 1609-1611.	view document

Accelerators

Year	Document
2011	M.P. Dehnel, “Industrial Beamline Technologies and Approaches”, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1336, pp. 21-25, 2011.	view document
2011	J.M. Huser, M.R. Cackette, L. Wheeler, M.P. Dehnel, “Software for Radiopharmaceutical Production Control”, XII Turku PET Symposium, p. 96, Turku, Finland, 2011.	view document
2008	M. Haji-Saeid, P. Mra, T.J. Ruth, D.J. SChleyer, P.V. Winkel, M.M. V.R. Capote-Noy, L. Carroll, J.C. Clark, J.J. Comor, M. Dehnel, R. Ferrieri, R.D. Finn, J.S. Fowler, M.J. Schueller, "Cyclotron Produced Radionuclides: Principles and Practice", IAEA, December 2008; ISBN: 978-92-0-100208-2 Related products TRIUMF Licensed Standard Solid Target Station	view document
2007	M. Dehnel et al,“Practical Considerations in the Design of a High Current Commercial H¯ Cyclotron”, APAC 2007, pp.625-627, Indore, India, 2007.	view document
2001	K.L. Erdman et al, “Compact Commercial 9 MeV Deuteron Cyclotron with Pulsed Beam”, 16th Int’l Conf. on Cyclotrons and their App’s, East Lansing, MI, USA, 2001.	view document
1998	M.P. Dehnel et al, “Measurements of Beam Emittance, Accelerated RF Phase Band, and Centering in a 1 MeV Test Cyclotron”, 15th Int’l Conf. on Cyclotrons and their App’s, 236-238, Caen, France, 1998.	view document
1998	K.L. Erdman et al, “Initial Operation of the Sherbrooke Ebco 19 MeV Cyclotron”, 15th Int’l Conf. on Cyclotrons and their App’s, 327-330, Caen, France, 1998.	view document
1998	M.P. Dehnel et al, “Measurements of Injected Beam Deflections at the Exit of a Cyclotron Inflector as a Function of Applied Field or Beam Energy Perturbations”, 15th Int’l Conf. on Cyclotrons and their App’s, 239-242, Caen, France, 1998.	view document
1997	M.P. Dehnel et al, “The Experimental Characterization of a Compact H¯ Cyclotron’s Spiral Inflector”, Nucl. Instrum. & Meth. in Phys., Vol. 397, Iss. 2-3, 1997.	view document
1992	M.P. Dehnel et al, “The TR16/8, A Dual Particle Cyclotron for Clinical Isotope Production”, Proc. 3rd European Part. Acc. Conf., Vol. 2, pp. 1682-1684, Berlin, 1992.	view document
1990	B.F. Milton et al, “First Beam in a New Compact Intense 30 MeV H¯ Cyclotron for Isotope Production”, Proc. 2nd European Part. Acc. Conf., Vol. 2, pp. 1812-1814, Nice, 1990.	view document

Miscellaneous

Year	Document
1989	M.P. Dehnel et al, “A Novel Optimizer for the Lumber Industry”, I.E.E.E. Ind. App’s Conf. Record, pp. 1717-1722, San Diego, 1989.	view document
1989	M.P. Dehnel et al,, “A Method for Identifying Weak Nodes in Nonconvergent Load Flows”, I.E.E.E. Trans. Power Systems, Vol. 4, No. 2, pp. 801-807, Portland, 1989.	view document