@article{InfantinoPaulssenMostaccietal.2016,
  author    = {Infantino, Angelo and Paulßen, Elisabeth and Mostacci, Domiziano and Schaffer, Paul and Trinczek, Michael and Hoehr, Cornelia},
  title     = {Assessment of the production of medical isotopes using the Monte Carlo code FLUKA: Simulations against experimental measurements},
  series = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  volume    = {366},
  journal   = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9584},
  doi       = {10.1016/j.nimb.2015.10.067},
  pages     = {117 -- 123},
  year      = {2016},
  abstract  = {The Monte Carlo code FLUKA is used to simulate the production of a number of positron emitting radionuclides, ¹⁸F, ¹³N, ⁹⁴Tc, ⁴⁴Sc, ⁶⁸Ga, ⁸⁶Y, ⁸⁹Zr, ⁵²Mn, ⁶¹Cu and ⁵⁵Co, on a small medical cyclotron with a proton beam energy of 13 MeV. Experimental data collected at the TR13 cyclotron at TRIUMF agree within a factor of 0.6 ± 0.4 with the directly simulated data, except for the production of ⁵⁵Co, where the simulation underestimates the experiment by a factor of 3.4 ± 0.4. The experimental data also agree within a factor of 0.8 ± 0.6 with the convolution of simulated proton fluence and cross sections from literature. Overall, this confirms the applicability of FLUKA to simulate radionuclide production at 13 MeV proton beam energy.},
  language  = {en}
}
@article{PaulssenLengkeekLeetal.2016,
  author    = {Paulßen, Elisabeth and Lengkeek, Nigel A. and Le, Van So and Pellegrini, Paul A. and Greguric, Ivan and Weiner, Ron},
  title     = {The role of additives in moderating the influence of Fe(III) and Cu(II) on the radiochemical yield of [⁶⁸Ga(DOTATATE)]},
  series = {Applied Radiation and Isotopes},
  volume    = {107},
  journal   = {Applied Radiation and Isotopes},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9800},
  doi       = {10.1016/j.apradiso.2015.09.008},
  pages     = {13 -- 16},
  year      = {2016},
  abstract  = {[⁶⁸Ga(DOTATATE)] has demonstrated its clinical usefulness. Both Fe³⁺ and Cu²⁺, potential contaminants in Gallium-68 generator eluent, substantially reduce the radiochemical (RC) yield of [⁶⁸Ga(DOTATATE)] if the metal/ligand ratio of 1:1 is exceeded. A variety of compounds were examined for their potential ability to reduce this effect. Most had no effect on RC yield. However, addition of phosphate diminished the influence of Fe³⁺ by likely forming an insoluble iron salt. Addition of ascorbic acid reduced Cu²⁺ and Fe³⁺ to Cu⁺ and Fe²⁺ respectively, both of which have limited impact on RC yields. At low ligand amounts (5 nmol DOTATATE), the addition of 30 nmol phosphate (0.19 mM) increased the tolerance of Fe3⁺ from 4 nmol to 10 nmol (0.06 mM), while the addition of ascorbic acid allowed high RC yields (>95\%) in the presence of 40 nmol Fe³⁺ (0.25 mM) and 100 nmol Cu²⁺ (0.63 mM). The effect of ascorbic acid was highly pH-dependant, and gave optimal results at pH 3.},
  language  = {en}
}