Hawkes, N P; Kolkowski, P; Roberts, N J; Salvador-Castiñeira, P; Taylor, G C; Thomas, D J (2018) Additional characterisation of the Thermal Neutron Pile at the National Physical Laboratory, UK. Radiation Protection Dosimetry, 180 (1-4). pp. 25-28. ISSN 0144-8420

Thomas, D J; Hawkes, N P; Jones, L N; Kolkowski, P; Roberts, N J (2007) Characterization and utilization of a bonner sphere set based on gold activation foils. Radiat. Prot. Dosim., 126 (1-4). pp. 229-233.

Hawkes, N P; Bennett, A; Cheema, S S; Horwood, N A; Jones, L N; Kolkowski, P; Roberts, N J; Taylor, G C; Thomas, D J (2007) Progress in providing neutron standards at the UK National Physical Laboratory. Nucl. Instrum. Methods Phys. Res. A, Accel. Spectrom. Detec. Assoc. Equip., 580. pp. 183-185.

Thomas, D J; Kolkowski, P; Roberts, N J; Mellow, B D*; Joyce, M J* (2006) Investigation of a possible replacement for cadmium as a thermal neutron absorbing material in neutron instruments. NPL Report. DQL-RN 017

Kolkowski, P (2005) Pilot study for a CCRI comparison of thermal neutron fluence rate measurements using 10B ionisation chambers. NPL Report. DQL-RN 011

Thomas, D J; Kolkowski, P (2005) Thermal fluence and dose equivalent standards at NPL. NPL Report. DQL-RN 008

Dean, J C J; Kolkowski, P (2004) The development of a 222Rn standard solution dispenser at NPL. Appl. Radiat. Isot., 61. pp. 95-100.

Thomas, D J; Roberts, N J; Bennett, A; Kolkowski, P (2002) The NPL contribution to a CCRI international comparison of fast neutron fluence measurements performed at the PTB in March 2001. NPL Report. CIRM 51

Kolkowski, P; Thomas, D J (1999) Measurement of the fast neutron component in the beam of the NPL Thermal Neutron Column using a Bonner sphere spectrometer. NPL Report. CIRM 28