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, in press.

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, in press.

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.

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.

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).

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.

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.

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.

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

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.

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.

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.

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)

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

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

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

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.

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.

S. Melanson, D. Potkins, H. McDonald, C. Philpott & M. Dehnel, “Beam Current Stability Improvements of Negative Carbon Ions Extraction from a Multi-Cusp Ion Source”, In AIP Conference Proceedings, vol. 2052, no. 1, p. 060003. AIP Publishing, 2018.

D. Potkins, M. Dehnel, S. Melanson, T. Stewart, P. Jackle, J. Hinderer, N. Jones, L. Williams,"Improvements to Siemens Eclipse PET Cyclotron Penning Ion Source" In AIP Conference Proceedings, vol. 2052, no. 1, p. 050016. AIP Publishing, 2018.

S. Melanson, A. George, H. McDonald, D. Potkins, C. Philpott, M. Dehnel, “Improvements to a 13.56 MHz RF Powered H¯ Ion Source”, In AIP Conference Proceedings, vol. 2011, no. 1, p. 050030. AIP Publishing, 2018.

S. Melanson, M.P. Dehnel., D.E. Potkins, H.C. McDonald, C. Philpott, "H¯, D¯, C₂¯: A Comparison of RF and Filament Powered Volume-Cusp Ion Sources", Proceedings of the 8th International Particle Accelerator Conference (IPAC'17), Copenhagen, Denmark, May 14-19, 2017.

Stephane Melanson, Morgan Dehnel, Dave Potkins, Hamish McDonald, Craig Hollinger, Joseph Theroux, Jeff Martin, Thomas Stewart, Philip Jackle, Chris Philpott, Tobin Jones, Taneli Kalvas, and Olli Tarvainen, "The extraction of negative carbon ions from a volume cusp ion source", AIP Conference Proceedings 1869, 040001 (2017)

Stephane Melanson, Morgan Dehnel, Dave Potkins, Hamish McDonald, Craig Hollinger, Joseph Theroux, Jeff Martin, Thomas Stewart, Philip Jackle, Chris Philpott, Tobin Jones, Taneli Kalvas and Olli Tarvainen, "The Extraction of Negative Carbon Ions from a Volume Cusp Ion Source", NIBS 2016 in Oxford UK, Sept 12-16 2016,AIP Conference Proceedings 1869, 040001 (2017)

S. Melanson, D. Potkins, C. Hollinger, J. Martin, C. Philpott"A PID Algorithm for Filament Powered Volume Cusp Ion Sources", In 7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016, pp. 2623-2624. JACOW, Geneva, Switzerland, 2016.

S. Melanson†, M. Dehnel, D. Potkins, C. Hollinger, J. Theroux, J. Martin, T. Stewart, P. Jackle, D-Pace Inc., Nelson, Canada H. McDonald, T. Jones, C. Philpott, Buckley Systems Ltd., Auckland, New Zealand "The Production of Negative Carbon Ions with a Volume Cusp Ion Source",In 7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 8-13, 2016, pp. 2620-2622. JACOW, Geneva, Switzerland, 2016.

S. Melanson, M. Dehnel, D. Potkins, J. Theroux, C. Hollinger, J. Martin, C. Philpott, T. Stewart, P. Jackle, P. Williams, S. Brown, T. Jones, B. Coad, and S. Withington, "A Negative Ion Source Test Facility",Proceedings of the 16th International Conference on Ion Sources, New York, New York, USA, August 2015. Rev. Sci. Instrum. 87, 02B109 (2016)

T. Kalvas, O. Tarvainen, J. Komppula, H. Koivisto, D.Potkins, T.Stewart, M.P. Dehnel,"A CW Radiofrequency Ion Source for Production of Negative Hydrogen Ion Beams for Cyclotrons",AIP Conf. Proc. 1655, 030015(2015)

M.P. Dehnel, T. Stewart, D. Potkins, J. Theroux, P. Jackle, S.W. Withington, C. Philpott, T. Jone"A New Ion Source Test Facility for Negative Ion Beams",NIBS 2014, Oral Presentation, Garching, Germany, October 2014.

T. Kalvas et al, “Recent Negative Ion Source Activity at JYFL”, NIBS 2012, Jyvaskyla, Finland, 2012, AIP, Conference Proceedings, 1515, pp 349-358.

M. Roeder et al, “An Ion Source Research Facility”, 12th Int’l Conf. on Ion Sources, pp. 625-627, Jeju, South Korea, 2007.

M.P. Dehnel et al, "An ion source upgrade for an axial injection based commercial cyclotron", NIMB, Vol. 241, Issues 1-4, pp. 896-900, 2005.

M. Dehnel et al, “An Industrial Cyclotron Ion Source & Injection System”, 17th Int’l Conf. on Cyclotrons and their App’s, 293-295, Tokyo, Japan, 2004.

B.F. Milton et al,>, “Design of an Axial Injection System for the Seattle MC50 Cyclotron”, 15th Int’l Conf. on Cyclotrons and their App’s, 638-641, Caen, France, 1998.

T. Kuo et al, “A Comparison of Two Injection Line Matching Sections for Compact Cyclotrons”, Proc. of Part. Acc. Conf., Dallas, 1995

M.P. Dehnel, “The Development of an Injection System for a Compact H¯ Cyclotron, the Concomitant Measurement of Injected Beam Properties and the Experimental Characterization of the Spiral Inflector”, Doctoral Thesis, The University of British Columbia, Vancouver, 1995.

M.P. Dehnel et al, “Injection System Design and Tests for the TR13 Cyclotron”, Proc. 4th European Part. Acc. Conf., Vol. 3, pp. 2367-2369, London , 1994.

T. Kuo et al, “Performance of an ISIS System Using Compact Magnetic Quadrupoles”, Proc. 4th European Part. Acc. Conf., Vol. 3, pp. 2364-2366, London, 1994.

M. Kranz, E. Dorman, R. Emery, M. Dehnel, “D-Pace UniBEaM Beam Profiler Integration and High Beam Power Scan Data at the University of Washington Medical Cyclotron Facility.” 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.

M. Dehnel, S. Withington, D. Potkins, D. Walker, J. Theroux, T. Stewart, T. Lafi, J. Cunningham, G. Marcoux, E. Pattyn, R. McLaughlin, “A Technology Transfer Example for the Case of a Solid Target Station.” Proceedings of the 18^th International Workshop on Targetry and Target Chemistry (WTTC18), Whistler, Canada, August 21-26, 2022.

S. Usherovich, C. Penner, G. Hodgson, E. Thoeng, M. Dehnel, C. Hoehr, “Target Fiber Monitor (TFM) using cerium-doped silica fibers for medical isotope production”, ”. J. Phys.: Conf. Ser. 2374 012182.

C.Hoehr, M.Hanna, S.Zeisler, C.Penner, M.Stokely, M.Dehnel, "Ce- and B-Doped Silica Fibers for Monitoring Low-Energy Proton Beams on a Medical Cyclotron." Appl. Sci. 2020, 10, 4488.

O.Apsimon, B.Williamson, G.Xia "A Numerical Approach to Designing a Versatile Pepper-pot Mask for Emittance Measurement" Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume 943, 1 November 2019

N.Savard, C. Penner, M. Dehnel, D. Potkins, C. Hoehr, "Characteristics of a Ce-Doped Silica Fiber Irradiated by 0 - 400 MeV Neutrons", IEEE Sensors 2018 Conference, New Delhi, October 28-31, 2018,IEEE, p. 1-4.

N. Savard, D. Potkins, J. Beaudry, A. Jiresek, C. Duzenli, C. Hoehr, “Characteristics of a Ce-Doped Silica Fiber Irradiated by 74 MeV Protons”, Radiation Measurements 114 (2018) 19–24.

D. E. Potkins, M. P. Dehnel, N. Lobanov, T. Kubley, O. Toader,"UniBEam-Beam Profiler For Beam Characterization and Position Feedback" Proceedings of the 6th International Beam Instrumentation Conference(IBIC 2017), Grand Rapids, Michigan, USA, August 2017, JACoW Publishing, p. 335-337

D. E. Potkins, S. Braccini, K. P. Nesteruk, T. S. Carzaniga, A. Vedda, N. Chiodini, J. Timmermans, S. Melanson, M. P. Dehnel, 'A Low-Cost Beam Profiler Based On Cerium-Doped Silica Fibers', Physics Procedia 90 (2017): 215-222.

M.O.A El Ghazaly, M.P, Dehnel, P. Defrance,"Development of a High Resolution Analyzing Magnet System for Heavy Molecular Ions",CAARI 2014, Physics Procedia 66, ScienceDirect, pp. 10-15, 2015.

F. Alrumayan, A. Alghaith, A. Hendy and M. Dehnel “A Comparative Study between Simulated and Measured Beam's quality of 30 MeV Cyclotron at KFSHRC”, Proceedings of the 3rd International Beam Instrumentation Conference, "IBIC 2015”, 13-17 Sept., Melbourne, Australia.

M.P. Dehnel, P. Jackle, D.Potkins, T.Stewart, G. Boudreault, T. Jones, C. Philpott, S. Lockwood, "A Mini-PET Beamline for Optimized Proton Delivery to the ISOTRACE™ Target System", Proceedings of the 15th International Workshop on Targetry and Target Chemistry(WTTC15),Prague, Czech Republic, August 18-21 2014, Helmholtz-Zentrum Dresden-Rossendorf, p.117-119.

M.G. Marsland et al, “Calibration and Operational Data for a Compact Photodiode Detector Useful for Monitoring the Location of Moving Sources of Positron Emitting Radioisotopes”, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1525, pp. 337-339, 2013.

M.P. Dehnel et al,“An Integrated Self-Supporting Mini-Beamline for PET Cyclotrons”, Proceedings of Cyclotron 2013, pp. 251-253, Vancouver, BC, Canada, Sept. 2013.

M.P. Dehnel et al,“A Specialized High-Power(50kW) Proton Beamline for BNCT”, Proceedings of PAC13, pp. 116-118, Pasadena, CA, USA, Oct 2013.

M.P. Dehnel, “Why Use Beamlines in PET Radionuclide Production?”, XII Turku PET Symposium, p. 33, Turku, Finland, 2011.

M.P. Dehnel, “Industrial Beamline Technologies and Approaches”, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1336, pp. 21-25, 2011.

M. Stokely et al, “120+ µA Single 18F- Target and Beam Port Upgrade for the RDS/Eclipse”, WTTC13, Roskilde, Denmark, 2010.

M. Stokely et al, “A High Current PET Target and Compact Beamline”, PAC09, pp. 2808-2810, Vancouver, BC, CANADA, 2009.

Morgan P. Dehnel et al, “Measurements From A Compact Cost-Effective Beamline For The THC14 PET Cyclotron”, CAARI 2008, AIP Conf. Proc. 1099, pp. 504-507 (2008).

Related service
Beam Characterization

J. Theroux et al, “A “Short Port” Beamline for Mounting Custom Targets to a GE PETtrace™ Cyclotron”,18th Int’l Conf. on Cyclotrons and their App’s, pp. 361-363, Catania, Italy, 2007.

M. Dehnel et al, “Beamline Developments in Commercial Cyclotron Facilities”,CAARI 2004, NIMB 241, pp. 655-659, Fort Worth, Texas, USA, 2005.

M. Dehnel et al, “Industrial Beamline Design for Radioisotope Production”,17th Int’l Conf. On Cyclotrons and their App’s, 486-488, Tokyo, Japan, 2004.

M.P. Dehnel et al, “The Design and Operation of an Industrial Beam Transport System for 15-30 MeV Protons”, I.E.E.E. Trans. Ind. App’s, Vol. 28, No. 6, pp. 1384-1391, Detroit, 1992.

M.P. Dehnel, “Industrial Beamline Technologies and Approaches”, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1336, pp. 21-25, 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.

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

M. Dehnel et al,“Practical Considerations in the Design of a High Current Commercial H¯ Cyclotron”, APAC 2007, pp.625-627, Indore, India, 2007.

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.

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.

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.

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.

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.

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.

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.

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.

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.

N. Savard, "Development and characterization of a Penning ion source using helium", UBC, PhD Thesis, 2022.

A. George, "A study on the extraction of negative ions from a multicusp ion source" UoA, PhD Thesis, 2021.

S. Melanson, “The Production of Negative Carbon Ions from Volume-Cusp Ion Sources”, UBC, PhD Thesis, 2020.

D. Wüthrich, “Study of a novel compact beam line at a medical cyclotron”, U. Bern, Bachelor Thesis, 2016.

E. Kirillova, “Study and Test of a Beam Monitor Detector for the Bern Medical Cyclotron”, U. Bern, Master Thesis, 2014.

K.M.G. Le Du, “Modeling of an Extraction Lens System for H¯ Volume Cusp Ion Sources used to Inject Beam into Commercial Cyclotrons”, SFU, Bachelor Thesis, 2003.

M.P. Dehnel, “The Development of an Injection System for a Compact H¯ Cyclotron, the Concomitant Measurement of Injected Beam Properties and the Experimental Characterization of the Spiral Inflector”, UBC, PhD Thesis, 1995