[Triumf-seminars] TRIUMF Accelerator Seminar today at 14:30

[TRIUMF Seminars]

Date/Time: Wed 2022-12-14 at 14:30

Location:  ISAC II Conf. Room  

Speaker:   Hannah Toy, Ana Morales Oliver, Sam Gupta (TRIUMF)

Title:     ISAC target laboratory co-op projects

Abstract: Title:  Development of High-Z Target Materials for Exotic ISOL Beams

Speaker:  Hannah Toy (University of Waterloo/Nanotechnology Engineering)

Abstract: Target material development is the key to increasing the intensities of radioactive ion beams for experimenters.  One possible way is to incorporate nanoparticles into nanofibres, which limits diffusion times by preventing the sintering and formation of larger particles.  After the success of the nanofibrous SiC target, TiC nanofibres were explored by utilizing nanoparticle TiO2 and C for the potential of high-Z nanofibrous target materials.  The TiC nanofibers were fabricated using the electrospinning method and characterized using various methods. The synthesis of the TiC nanofibers in this work will guide future synthesis of UCx nanofibers.

Title: Medical Isotope Collection and Imaging  

Speaker:  Ana Morales Oliver (University of Alberta/Chemistry)

Abstract: The experiment consists of the production of an Ac226 source using the ISAC Implantation Station (IIS). The ions are implanted with an energy between 20-40 keV into a thin ammonium chloride layer on an aluminum disc covered with Zinc foil. My project consisted in helping to characterize and optimize these IIS implantation targets. In this talk, I will discuss the isotope collection process as well as the relevance of Ac226 as preclinical imaging with quantitative SPECT imaging. 

Title:  Low Profile FIBIAD Magnet Development and Tantalum Bracket Emissivity Measurements 

Speaker:  Sam Gupta (University of British Columbia/Physics)

Abstract: The presentation will be outlining the methods and results from the two projects undertaken by Sam Gupta during his four-month co-op term at Triumf.  A low-profile FIBIAD magnet was designed and tested for low-current operation. First, simulated in Opera then fabricated out of silver-coated copper wiring, the magnet's magnetic field strength was measured to be compared to a similar magnet with a smaller number of turns and operated at a higher current. The emissivity properties of the tantalum brackets are investigated through data collected by a pyrometer and SEM imaging. Two types of tantalum brackets are explored, one bare tantalum with an uncoated surface and the other with a tungsten foam coating.

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