Sander, T; Bass, G A; Cashmore, M T D; Duane, S; Galer, S E; Homer, M J; Lee, N D; Nutbrown, R F; Shipley, D R (2017) The NPL absorbed dose primary standard graphite calorimeter (2015 design) for 60Co: summary of correction and conversion factors. NPL Report. IR 45
Bass, G A; Duane, S; Galer, S E; Homer, M J; Kelly, M; Manning, J W; Maughan, D J; Nutbrown, R F; Sander, T; Shipley, D R; Snaith, J A D (2017) The NPL air kerma primary standard PS5-1/PS5-2 for 137Cs and 60CO: summary of factors. NPL Report. IR 41