b'Nuclear Science User Facilities Figure 2. Summary of Nb-rich cluster morphology follow each irradiation and the resulting evolution in the matrix composition of Nb in at%. Error bars for diameter represent the standard deviation of the mean.[4.] S. Saini, N. Gayathri, S.K. Sharma,[5.] E. Francis, R.P. Babu, A. Harte, T.L. A. Devi, A.P. Srivastava, S. Neogy,Martin, P. Frankel, D. Jderns, P. Mukherjee, P.K. Pujari, Micro- J. Romero, L. Hallstadius, P.A.J. structural investigation of irradia- Bagot, M.P. Moody, M. Preuss, tion damage behavior of protonEffect of Nb and Fe on damage irradiated Zr-1 wt.% Nb fuelevolution in a Zr-alloy dur-cladding alloy, J. Nucl. Mater. 528ing proton and neutron irra-(2020) 151894. doi:10.1016/j. diation, Acta Mater. 165 (2018) jnucmat.2019.151894. 603614. doi:10.1016/j.acta-mat.2018.12.021.[6.] M. Griffiths, R.W. Gilbert, The for-mation of c-component defects in zirconium alloys during neutron irradiation, J. Nucl. Mater. 150 (1987) 169181.66'