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@TECHREPORT{Horne:863091,
      author       = {Horne, Gregory P. and Wilden, Andreas and Mezyk, Stephen P.
                      and Hupert, Michelle and Stärk, Andrea and Verboom, Wim and
                      Mincher, Bruce J. and Modolo, Giuseppe},
      title        = {{R}adiolysis of {H}ydrophilic {D}iglycolamides in {A}queous
                      {N}itrate {S}olution},
      number       = {NTRD-MRWFD-2019- M3FT-19IN030102018},
      school       = {Idaho National Laboratory, Center for Radiation Chemistry
                      Research, Idaho Falls, ID, USA},
      reportid     = {FZJ-2019-03205, NTRD-MRWFD-2019- M3FT-19IN030102018},
      pages        = {21 p.},
      year         = {2019},
      abstract     = {The radiation chemistry of a series of hydrophilic DGAs
                      (TEDGA, Me-TEDGA, Me2-TEDGA, and TPDGA) has been
                      investigated under neutral pH, concentrated (5.0 M), aqueous
                      nitrate solution conditions. A combination of steady-state
                      gamma and time-resolved pulsed electron irradiation
                      experiments, supported by advanced analytical techniques and
                      multi-scale modeling calculations, have demonstrated that:
                      (i) the investigated hydrophilic DGAs undergo first-order
                      decay with an average dose constant of (3.48 ± 0.28) ×
                      10–6 Gy–1; (ii) their degradation product distributions
                      are similar to those under pure water conditions, except for
                      the appearance of NOx adducts; and (iii) radiolysis is
                      driven by hydroxyl and nitrate radical oxidation chemistry
                      moderated by secondary degradation product scavenging
                      reactions. Overall, the radiolysis of hydrophilic DGAs in
                      5.0 M nitrate solutions is significantly slower and less
                      structurally sensitive than under pure water conditions, but
                      similar to their lipophilic analogs. These findings are
                      promising for the deployment of hydrophilic DGAs as actinide
                      aqueous phase stripping and hold-back agents, due to the
                      presence of nitrate in envisioned large-scale process
                      conditions.},
      cin          = {IEK-6 / ZEA-3},
      cid          = {I:(DE-Juel1)IEK-6-20101013 / I:(DE-Juel1)ZEA-3-20090406},
      pnm          = {161 - Nuclear Waste Management (POF3-161) / GENIORS - GEN
                      IV Integrated Oxide fuels recycling strategies (755171) /
                      SACSESS - Safety of ACtinide Separation proceSSes (323282)},
      pid          = {G:(DE-HGF)POF3-161 / G:(EU-Grant)755171 /
                      G:(EU-Grant)323282},
      typ          = {PUB:(DE-HGF)29 / PUB:(DE-HGF)15},
      url          = {https://juser.fz-juelich.de/record/863091},
}