Bouvet, M; Thome, K; Berthelot, B; Bialek, A; Czapla-Myers, J; Fox, N P; Goryl, P; Henry, P; Ma, L L; Marcq, S; Meygret, A; Wenny, B; Woolliams, E R (2019) RadCalNet: A Radiometric Calibration Network for Earth Observing Imagers Operating in the Visible to Shortwave Infrared Spectral Range. Remote Sensing, 11 (20). 2401 ISSN 2072-4292

Gorrono, J; Peters, M; Fomferra, N; Fox, N P; Gascon, F (2018) A Second Version of the Radiometric Uncertainty Tool for the Sentinel-2 Mission. In: IGARSS 2018 - IEEE International Geoscience and Remote Sensing Symposium, 22-27 July 2018, Valencia, Spain.

Gorrono, J; Hunt, S; Scanlon, T; Banks, A; Fox, N P; Woolliams, E; Underwood, C; Gascon, F; Peters, M; Fomferra, N; Govaerts, Y; Lamquin, N; Bruniquel, V (2018) Providing uncertainty estimates of the Sentinel-2 top-of-atmosphere measurements for radiometric validation activities. European Journal of Remote Sensing, 51 (1). pp. 650-666. ISSN 2279-7254

Scanlon, T; Greenwell, C; Czapla-Myers, J; Anderson, N; Goodman, T; Thome, K; Woolliams, E; Porrovecchio, G; Linduska, P; Simid, M; Fox, N P (2017) Ground comparison at RadCalNet sites to determine the equivalence of sites with the network. Proceedings of SPIE, 10423. 104231B

Banks, A C; Hunt, S E; Gorrono, J; Scanlon, T; Woolliams, E R; Fox, N P (2017) A comparison of validation and vicarious calibration of high and medium resolution satellite-borne sensors using RadCalNet. Proceedings of SPIE, 10423. 104231A

Gorrono, J; Banks, A C; Fox, N P; Underwood, C (2017) Radiometric inter-sensor cross-calibration uncertainty using a traceable high accuracy reference hyperspectral imager. ISPRS Journal of Photogrammetry and Remote Sensing, 130. pp. 393-417.

Gorrono, J; Fomferra, N*; Peters, M*; Gascon, F*; Underwood, C I*; Fox, N P; Kirches, G*; Brockmann, C* (2017) A radiometric uncertainty tool for the Sentinel 2 mission. Remote Sens., 9 (2). p. 178.

Nightingale, J; Scanlon, T; Origo, N; Calders, K; Fox, N P; Muller, J-P* (2016) Development of robust quality assurance procedures for terrestrial essential climate variable data products derived from earth observation satellites. In: 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 10-15 July 2016, Beijing, China.

Bialek, A; Greenwell, C; Lamare, M; Meygret, A*; Marcq, S*; Lacherade, S*; Woolliams, E R; Berthelot, B*; Bouvet, M*; King, M*; Underwood, C*; Fox, N P (2016) New radiometric calibration site located at Gobabeb, Namib desert. In: 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 10-15 July 2016, Beijing, CHina.

Fox, N P; Green, P D; Winkler, R; Lobb, D*; Friend, J* (2016) Traceble Radiometery Underpinning Terrestrial- and Helio- Studies (TRUTHS): establishing a climate and calibration observatory in space. In: 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 10-15 July 2016, Beijing, China.

Gorrono, J; Bialek, A; Green, P D; Harris, P M; Scanlon, T; Fox, N P; Underwood, C* (2016) Non-normal distribution of the top-of-atmosphere satellite optical measurements over calibration sites. Int. J. Remote Sens., 37 (19). pp. 4665-4682.

Gorrono, J; Banks, A; Gascon, F*; Fox, N P; Underwood, C I* (2016) Novel techniques for the analysis of the TOA radiometric uncertainty. Proc. SPIE - Int. Soc. Opt. Eng., 10000. 100001H

Cessateur, G*; Schmutz, W*; Wehrli, C*; Grobner, J*; Haberreiter, M*; Kretzschmar, M*; Rozanov, E*; Scholl, M*; Shapiro, A*; Thuillier, G*; Egorova, T*; Finsterle, W*; Fox, N P; Hochedez, J F*; Koller, S*; Meftah, M*; Meindl, P*; Nyeki, S*; Pfiffner, D*; Roth, H*; Rouze, M*; Spescha, M*; Tagirov, R*; Werner, L*; Wyss, J U* (2016) Solar irradiance observations with PREMOS filter radiometers on the PICARD mission: in-flight performance and data release. Astron. Astrophys., 588 (2). A126.

Gorrono, J; Fox, N P; Bialek, A; Green, P; Scanlon, T (2015) Truths cross-calibration uncertainty tool. In: IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 26-31 July 2015, Milan, Italy.

Taralli, E*; Filippo, R*; Brida, G*; Rajteri, M*; Hall, S R G; Bialek, A*; Greenwell, C*; Fox, N P (2015) LED-based field radiometer for sensor web in-situ measurements. In: 2nd IEEE International Workshop on Metrology for Aerospace (MetroAeroSpace), 4-5 June 2015, Benevento, Italy.

Barker, A; Banks, A; Bell, W*; Dowell, M*; Fox, N P; Green, P; Lecomte, P*; Merchant, C*; Saunders, R*; Schultz, J*; Whitney, M (2015) Metrology for climate. Metrology priorities for the earth observation and climate community. Technical Report.

Marks, A; Fragiacomo, C*; MacArthur, A*; Zibordi, G*; Fox, N P; King, M D* (2015) Characterisation of the HDRF (as a proxy for BRDF) of snow surfaces at Dome C, Antarctica, for the inter-calibration and inter-comparison of satellite optical data. Remote Sens. Environ., 158. pp. 407-416.

Ball, CP*; Marks, A A*; Green, P D; MacArthur, A*; Maturilli, M*; Fox, N P; King, MD* (2015) Hemispherical-directional reflectance (HDRF) of windblown snow-covered Arctic tundra at large solar zenith angles. IEEE Trans. Geosci. Remote Sens., 53 (10). pp. 5377-5387.

Gorrono, J; Gascon, F*; Fox, N P (2015) Radiometric uncertainty per pixel for the Sentinel-2 L1C products. Proc. SPIE - Int. Soc. Opt. Eng., 9639. 96391G

Green, P D; Fox, N P; Lobb, D*; Friend, J* (2015) The Traceable Radiometry Underpinning Terrestrial and Helio Studies (TRUTHS) mission. Proc. SPIE - Int. Soc. Opt. Eng., 9639. 96391C

Salim, S G R*; Woolliams, E R; Fox, N P (2014) Calibration of a photodiode array spectrometer against the copper point. Int. J. Thermophysics, 35 (3). pp. 504-515.

Coote, J*; Woolliams, E R; Fox, N P; Goodyer, I D*; Sweeney, S J* (2014) Design and simulation of a semiconductor chip-based visible - NIR spectrometer for Earth observation. Proc. SPIE - Int. Soc. Opt. Eng., 8988. 898819

Lolli, L*; Pisani, M*; Rajteri, M*; Widlowski, J-L*; Bialek, A*; Greenwell, C*; Fox, N P (2014) Phytos: a portable goniometer for it situ spectro-directional measurements of leaves. Metrologia, 51 (6). S309-S313

Theocharous, E; Chunnilall, C J; Mole, R*; Gibbs, D; Fox, N P; Shang, N G*; Howlett, G*; Jensen, B*; Taylor, R*; Reveles, J R*; Harris, O B*; Ahmed, N* (2014) The partial space qualification of a vertically aligned carbon nanotube coating on aluminium substrates for EO applications. Opt. Express, 22 (6). pp. 7290-7307.

Levick, A P; Greenwell, C L; Irland, J; Woolliams, E R; Goodman, T M; Bialek, A; Fox, N P (2014) A spectral radiance source based on a supercontinuum laser and wavelength tunable bandpass filter: the spectrally tuneable absolute irradiance and radiance source. Appl. Opt., 53 (16). pp. 3508-3519.

Clarke, H*; Halstall, K*; Fox, N P; Nightingale, T* (2013) The CEMS data integrity pilot project. In: ESA Living Planet Symposium. Proceedings, 9-13 September 2013, Edinburgh, UK.

Fox, N P; Green, P D; Brindley, H*; Russell, J*; Smith, D*; Lobb, D*; Cutter, M*; Barnes, A* (2013) TRUTHS (Traceable Radiometry Underpinning Terrestrial- and Helio-Studies) a mission to achive 'climate quality' data. In: ESA Living Planet Symposium. Proceedings, 9-13 September 2013, Edinburgh, UK.

Wielicki, B A*; Young, D F*; Mlynczak, M G*; Thome, K J*; Leroy, S*; Corliss, J*; Anderson, J G*; Ao, C O*; Bantges, R*; Best, F*; Bowman, K*; Brindley, H*; Butler, J J*; Collins, W*; Dykema, J A*; Doelling, D R*; Feldman, D R*; Fox, N P; Huang, X*; Holz, R*; Huang, Y*; Jin, Z*; Jennings, D*; Johnson, D G*; Jucks, K*; Kato, S*; Kirk-Davidoff, D B*; Knuteson, R*; Kopp, G*; Kratz, D P*; Liu, X*; Lukashin, C*; Mannucci, A J*; Phojanamongkolkij, N*; Pilewskie, P*; Ramaswam, V*; Revercomb, Y H*; Rice, J*; Roberts, Y*; Roithmayr, C M*; Rose, F*; Sandford, S*; Shirley, E L*; Smith, W L*; Soden, S B*; Speth, P W*; Sun, W*; Taylor, P C*; Tobin, D*; Xiong, X* (2013) Achieving climate change absolute accuracy in orbit. Bull. Am. Meteorol. Soc., 94 (10). pp. 1519-1539.

Gutschwager, B*; Theocharous, E; Monte, C*; Adibekyan, A*; Reiniger, M*; Fox, N P; Hollandt, J* (2013) Comparison of the radiation temperature scales of the PTB and the NPL in the temperature range from -57 °C to 50 °C. Meas. Sci. Technol., 24 (6). 065002

Ball, C P; Levick, A P; Woolliams, E R; Green, P D; Dury, M R; Winkler, R; Deadman, A J; Fox, N P; King, M D* (2013) Effects of the polytetrafluoroethylene (PTFE) phase transition at 19 °C on the use of Spectralon as a reference standard for reflectance. Appl. Opt., 52 (20). pp. 4806-4812.

Chander, G*; Hewison, T J*; Fox, N P; Wu, X Q*; Xiong, X X*; Blackwell, W J* (2013) Foreword to the special issue on intercalibration of satellite instruments. IEEE Trans. Geosci. Remote Sens., 51 (3). pp. 1052-1055.

Chander, G*; Hewison, T J*; Fox, N P; Wu, X Q*; Xiong, X X*; Blackwell, W J* (2013) Overview of intercalibration of satellite instruments. IEEE Trans. Geosci. Remote Sens., 51 (3). pp. 1056-1080.

Potts, D R*; Mackin, S*; Muller, J P*; Fox, N P (2013) Sensor intercalibration over dome C for the ESA GlobAlbedo project. IEEE Trans. Geosci. Remote Sens., 51 (3). pp. 1139-1146.

Theocharous, E; Fox, N P (2012) The treatment of uncertainties in SST measurements using radiation thermometers for the validation of satellite measurements. NPL Report. OP 7

Ozen, N*; Fox, N P; Deadman, A J; Behnert, I; Harris, P*; Gurbuz, S*; Yuan, L*; Griffith, D*; Kaewmanee, M*; Prakobya, A*; Musana, C*; Ponzoni, F*; Lee, D*; Boucher, Y*; Viallefont, F*; Rolland, P*; Helder, D*; Leigh, L*; Thome, K*; Sterckx, S*; Knaeps, E*; Raeymaekers, D*; Henry, P* (2012) Comparison of radiometric gain of optical satellite sensors using Tuz Golu radiometrically calibrated test site. In: IGARSS 2012 - 2012 IEEE International Geoscience and Remote Sensing Symposium., 22-27 July 2012, Munich, Germany.

Potts, D*; Mackin, S; Muller, J-P*; Fox, N P (2012) Satellite sensor intercalibration over Dome C: an introduction to QA4EO and the ESA GlobAlbedo project. In: IGARSS 2012 - 2012 IEEE International Geoscience and Remote Sensing Symposium., 22-27 July 2012, Munich, Germany.

Behnert, I D; Deadman, A J; Fox, N P; Harris, P M; Gürol, S*; Özen, H*; Bachmann, M*; Boucher, Y*; Lachérade, S* (2011) Measurement report CEOS WGCV pilot comparison of techniques and instruments used for the vicarious calibration of land surface imaging through a ground reference standard test site 2009. NPL Report. OP 5

Ozen, H*; Fox, N P; Leloglu, U M*; Behnert, I; Deadman, A J (2011) The 2010 Tuz Golu field campaign - an overview. In: 2011 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2011), 24-29 July 2011, Vancouver, Canada.

Fox, N P; Kaiser-Weiss, A*; Schmutz, W*; Thome, K*; Young, D*; Wielicki, B*; Winkler, R; Woolliams, E (2011) Accurate radiometry from space: an essential tool for climate studies. Philos. Trans. R. Soc. Lond. A, Math. Phys. Eng. Sci., 369 (1953). pp. 4028-4063.

Deadman, A J; Behnert, I; Fox, N P; Griffith, D* (2011) Laboratory panel and radiometer calibration. In: 2011 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2011), 24-29 July 2011, Vancouver, Canada.

Boucher, Y*; Viallefont, F*; Deadman, A J; Fox, N P; Behnert, I; Griffith, D*; Harris, P M; Helder, D*; Knaeps, E*; Leigh, L*; Li, Y*; Ozen, H*; Ponzoni, F*; Sterckx, S* (2011) Spectral reflectance measurement methodologies for TUZ GOLU field campaign. In: 2011 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2011), 24-29 July 2011, Vancouver, Canada.

Salim, S G R; Fox, N P; Hartree, W S; Woolliams, E R; Sun, T*; Gratten, K T V* (2011) Stray light correction for diode-array-based spectrometers using a monochromator. Appl. Opt., 50 (26). pp. 5130-5138.

Salim, S G R; Fox, N P; Theocharous, E; Sun, T*; Grattan, K T V* (2011) Temperature and nonlinearity corrections for a photodiode array spectrometer used in the field. Appl. Opt., 50 (6). pp. 866-875.

Leigh, L*; Helder,D*,; Behnert, I; Deadman, A J; Fox, N P; Leloglu, U M*; Ozen, H*; Griffith, D* (2011) Tuz Golu site characteristics. In: 2011 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2011), 24-29 July 2011, Vancouver, Canada.

Theocharous, E; Fox, N P (2010) CEOS comparison of IR brightness temperature measurements in support of satellite validation. Part II: Laboratory comparison of the brightness temperature of blackbodies. NPL Report. OP 4

Theocharous, E; Usadi, E; Fox, N P (2010) CEOS comparison of IR brightness temperature measurements in support of satellite validation. Part I: Laboratory and Ocean surface temperature comparison of radiation thermometers. NPL Report. OP 3

Zwinkels, J C*; Ikonen, E*; Fox, N P; Ulm, G*; Rastello, M L* (2010) Photometry, radiometry and 'the candela': evolution in the classical and quantum world. Metrologia, 47 (5). R15-R32

Salim, S G R; Woolliams, E R; Dury, M R; Lowe, D H; Pearce, J V; Machin, G; Fox, N P; Sun, T*; Grattan, K T V* (2009) Furnace uniformity effects on Re-C fixed-point melting plateaux. Metrologia, 46 (1). pp. 33-42.

Schmutz, W*; Fehlmann, A*; Hulsen, G*; Meindl, P*; Winkler, R; Thuillier, G*; Blattner, P*; Buisson, F*; Egorova, T*; Finsterle, W*; Fox, N P; Grobner, J*; Hochedez, J F*; Koller, S*; Meftah, M*; Meisonnier, M*; Nyeki, S*; Pfiffner, D*; Roth, H*; Rozanov, E*; Spescha, M*; Wehrli, C*; Werner, L*; Wyss, J U* (2009) The PREMOS/PICARD instrument calibration. Metrologia, 46 (4). S202-S206

Milton, E J*; Schaepman, M E*; Anderson, K*; Kneubuhler, M*; Fox, N P (2009) Progress in field spectroscopy. Remote Sens. Environ., 113. S92-S109

Prieto-Blanco, A*; North, P R J*; Barnsley, M J*; Fox, N P (2009) Satellite-driven modelling of Net Primary Productivity (NPP): Theoretical Analysis. Remote Sens. Environ., 113 (1). pp. 137-147.

Saunders, P*; Fischer, J*; Sadli, M*; Battuello, M*; Park, C W*; Zundong, Y*; Yoon, H*; Li, W*; van der Ham, E*; Sakuma, F*; Yamada, Y*; Ballico, M*; Machin, G; Fox, N P; Hollandt, J*; Matveyev, M*; Bloembergen, P*; Ugar, S* (2008) Uncertainty budgets for calibration of radiation thermometers below the silver point. Int. J. Thermophysics, 29 (3). pp. 1066-1083.

Theocharous, E; Hartree, W S; Fox, N P; Hopkinson, G*; Gomaz-Rojas, L* (2008) The evaluation of two pyroelectric detectors for the EarthCARE Earth Observation mission. In: Proceedings of NEWRAD 2008 Conference.

Dury, M R; Theocharous, E; Harrison, N; Fox, N P; Hilton, M* (2007) Common black coatings - reflectance and ageing characteristics in the 0.32 - 14.3 µm wavelength range. Opt. Commun., 270. pp. 262-272.

Cheung, J Y; Chunnilall, C J; Thomas, P J; Mountford, J R; Fox, N P (2007) Photon-counting - measurement challenges. Proc. SPIE - Int. Soc. Opt. Eng., 6583. 6583OG

Cheung, J Y; Chunnilall, C J; Woolliams, E R; Fox, N P; Mountford, J R; Wang, J; Thomas, P (2007) The quantum candela: a re-definition of the standard units for optical radiation. J. Mod. Opt., 54 (2-3). pp. 373-396.

Pegrum, H M; Montgomery, R; Fox, N P; Mountford, J R; Salim, S; Woolliams, P D; Pointer, M R; Crane, L; Chapman, M (2006) Expedia's best blue sky: experiment and results. NPL Report. DQL-OR 018

Woolliams, E R; Fox, N P; Cox, M G; Harris, P M; Harrison, N J (2006) The CCPR K1- a key comparison of spectrual irradiance 250 nm - 2500 nm: measurements, analysis and results. Metrologia, 43 (2). S98-S104

Cheung, J Y; Chunnilall, C J; Fox, N P (2006) Detecting photons - properties and challenges. Nucl. Instrum. Methods Phys. Res. A, Accel. Spectrom. Detec. Assoc. Equip., 567. pp. 100-103.

Theocharous, E; Fox, N P (2005) Ageing effects in cryogenically cooled InSb infrared filtered detectors. Meas. Sci. Technol., 16. pp. 578-582.

Pegrum, H M; Woolliams, E R; Fox, N P; Hanson, A R; Gibbs, D R; Servantes, W R; Goodman, T M (2005) Realising a primary spectral irradiance scale on deuterium lamps in the ultraviolet. In: UVNet Workshop, 20-21 October 2005, Davos, Switzerland.

Theocharous, E; Hawkins, G*; Fox, N P (2005) Reversible aging effects in cryogenically-cooled infrared filter radiometers. Infrared Phys. Technol., 46. pp. 339-349.

Theocharous, E; Ishii, J*; Fox, N P (2005) A comparison of the performance of a photovoltaic HgCdTe detector with that of a large area single pixel QWIP for infrared radionmetric applications. Infrared Phys. Technol., 46. pp. 309-322.

Pegrum, H M; Woolliams, E R; Fox, N P; Sibley, A D (2004) NPL measurement report for the UV scale 200 - 350 nm. NPL Report. DQL-OR 008

Theocharous, E; Ishii, J*; Fox, N P (2004) Absolute linearity measurements on HgCdTe detectors in the infrared region. Appl. Opt., 43 (21). pp. 4182-4188.

Woolliams, E R; Khlevnoy, B B*; Harrison, N J; Montgomery, S R; Lowe, D H; Fox, N P; Ogarev, S A*; Khromchenko, V B*; Sapritsky, V I* (2004) Measurements of the melting and freezing plateaus of re-C eutectic fixed-point blackbodies. In: 9th International Symposium on Temperature and thermal measurements in Industry ans Science (Tempmeko), 2004, Croatia.

Dury, M R*; Theocharous, E; Harrison, N J; Hilton, M*; Fox, N P (2004) The NPL wide-area, MIR calibration source. Proc. SPIE - Int. Soc. Opt. Eng., 5405 (1). pp. 532-540.

Rogers, L J; Theocharous, E; Ishii, J*; Fox, N P (2003) Development and evaluation of a novel large area single pixel QWIP for infrared radiometry. Proc. SPIE - Int. Soc. Opt. Eng., 5209 (1). pp. 219-27.

Woolliams, E R; Hunt, T M; Harrison, N J; Windsor, S A; Fox, N P; Mountford, J R; Rogers, L J; Pegrum, H M (2003) Improve transfer standard sources for calibration of field spectrometers used for Earth observation applications. Proc. SPIE - Int. Soc. Opt. Eng., 4881. pp. 386-394.

Khlevnoy, B B; Harrison, N J; Rogers, L J; Pollard, D F; Fox, N P; Sperfeld, P*; Fischer, J*; Friedrich, R*; Metzdorf, J*; Seidel, J*; Samoylov, M L*; Stolyarevskaya, R I*; Khromchenko, V B*; Osgarev, S A*; Sapritsky, V I* (2003) Intercomparison of radiation temperature measurements over the temperature range from 1600 K to 3300K. Metrologia, 40 (1). S39-S44

Theocharous, E; Clarke, F J J; Rogers, L J; Fox, N P (2003) Latest measurement techniques at NPL for the characteristization of infrared detectors and materials. Proc. SPIE - Int. Soc. Opt. Eng., 5209 (1). pp. 228-239.

Theocharous, E; Fox, N P (2003) Reversible and apparent ageing effects in infrared detectors. Metrologia, 40. S136-S140

Theocharous, E; Clarke, F J J; Rogers, L J; Fox, N P (2003) The latest measurement techniques at NPL for the characterisation of infrared detectors and materials. Proc. SPIE - Int. Soc. Opt. Eng., 5209. pp. 228-239.

Hartree, W S; Theocharous, E; Fox, N P (2003) A wavelength tunable, quasi-cw laser source for high accuracy spectrometric measurement in the 200 nm to 500 nm region. Proc. SPIE - Int. Soc. Opt. Eng., 4826. pp. 104-112.

Fox, N P (2001) Developments in optical radiation measurements at NPL. 1. Proc. SPIE - Int. Soc. Opt. Eng., 4450. pp. 140-154.

Fox, N P (2001) Developments in optical radiation measurements at NPL. 2. Proc. SPIE - Int. Soc. Opt. Eng., 4450. pp. 155-167.

Stock, K D*; Hofer, H*; White, M; Fox, N P (2000) Lowest uncertainty direct comparison of a mechanically-cooled and a helium-cooled-cryogenic radiometer. Metrologia, 37 (5). pp. 437-439.

Windsor, S A; Harrison, N J; Fox, N P (2000) The NPL detector stabilised irradiance source. Metrologia, 37 (5). pp. 473-476.

Woolliams, E R; Pollard, D F; Harrision, N J; Theocharous, E; Fox, N P (2000) New facility for the high-accuracy measurement of lens transmission. Metrologia, 37. pp. 603-605.

Woolliams, E R; Harrison, N J; Fox, N P (2000) Preliminary results of the investigation of a 3500 K black body. Metrologia, 37 (5). pp. 501-504.

Balling, P*; Fox, N P (2000) Response linearity test of biased 1337 traps. In: Conference on Precision Electromagnetic Measurements (CPEM) 2000, 14-19 May 2000, Sydney, Australia.

Theocharous, E; Fox, N P; Sapritsky, V I*; Mekhontsev, S N*; Morozova, S P* (1998) Absolute measurements of blackbody emitted radiance. Metrologia, 35 (4). pp. 549-554.

Fox, N P; Chunnilall, C J; White, M G* (1998) Detector based transfer standards for improved accuracy in spectral irradiance and radiance measurements. Metrologia, 35 (4). pp. 555-561.

Martin, J E; Fox, N P; Harrison, N J; Shipp, B; Anklin, M* (1998) Determination and comparisons of aperture areas using geometric and radiometric techniques. Metrologia, 35 (4). pp. 461-464.

Fox, N P; Ward, T H; Theocharous, E (1998) Establishing a new UV and NIR spectral responsivity scale. Metrologia, 35 (4). pp. 535-541.

Hunt, T M*; Fox, N P; Hartree, W S; Durant, N M (1998) Evaluating the performance of filter radiometers as a means of improving the uncertainty of UV measurements. Metrologia, 35 (4). pp. 345-351.

Hunt, T M; Fox, N P; Hartree, W S; Durant, N M (1998) Evaluating the performance of filter radiometers as a means of improving the uncertainty of ultraviolet measurements. Metrologia, 35 (4). pp. 345-351.

Theocharous, E; Prior, T R; Haycocks, P R; Fox, N P (1998) High accuracy infrared spectral responsivity scale. Metrologia, 35 (4). pp. 543-548.

Harrison, N J; Fox, N P; Sperfeld, P*; Metzdorf, J*; Khlevnoy, B B*; Stolyarevskaya, R I*; Khromchenko, V B*; Mekhontsev, S N*; Shapoval, V I*; Zelener, M F*; Sapritsky, V I (1998) International comparison of radiation-temperature measurements with filtered detectors over the temperature range 1380 K to 3100 K. Metrologia, 35 (4). pp. 283-288.

Sperfeld, P*; Metzdorf, J*; Harrison, N J; Fox, N P; Khlevnoy, B B*; Khromchenko, V B*; Mekhontsev, S N*; Shapoval, V I*; Zelener, M F*; Sapritsky, V I* (1998) Investigation of high-temperature black body BB3200. Metrologia, 35 (4). pp. 419-422.

Chunnilall, C J; Fox, N P (1998) Radiometric applications of Fourier-transform (FT) spectrometers. Metrologia, 35 (4). pp. 529-534.

Mossavati, R*; Harries, J E*; Kellock, S*; Wrigley, R T*; Fox, N P (1998) Radiometric calibration of the GERB instrument. Metrologia, 35 (4). pp. 603-607.

Hartree, W S; Haycocks, P R; Fox, N P (1998) The use of a mode-locked laser for ultraviolet radiometry. Metrologia, 35 (4). pp. 339-343.

Chunnilall, C J; Fox, N P; Theocharous, E (1997) Radiometric applications of Fourier-Transform spectrometers. Mikrochim. Acta, 14. pp. 175-177.

Durant, N M; Fox, N P (1996) Evaluation of solid-state detectors for ultraviolet radiometric applications. Metrologia, 32 (6). pp. 505-508.

Fox, N P; Chunnilall, C J; Harrison, N J; Hartree, W S (1996) High accuracy characterisation and applications of filter radiometers. Proc. SPIE - Int. Soc. Opt. Eng., 2815. pp. 32-41.

Prokhorov, A V*; Chunnilall, C J; Fox, N P; Mekhontsev, S N*; Sapritsky, V I* (1996) Optimization of filter radiometer spectral response. Proc. SPIE - Int. Soc. Opt. Eng., 2815. pp. 145-153.

Fox, N P; Prior, T R; Theocharous, E; Mekhontsev, S N* (1996) Solid-state detectors for infrared radiometry. Metrologia, 32 (6). pp. 609-613.

White, M G*; Fox, N P; Ralph, V E (1996) The characterisation of a high temperature blackbody as the basis for the NPL spectral irradiance scale. Metrologia, 32 (6). pp. 431-434.

Theocharous, E; Fox, N P; Prior, T J (1996) A comparison of the performance of infrared detectors for radiometric applications. Proc. SPIE - Int. Soc. Opt. Eng., 2815. pp. 56-58.

McEvoy, H C; Machin, G; Fox, N P; Theocharous, E; Hassan, I S* (1996) An ingaas radiation thermometer for temperature scale realisation. In: TEMPMEKO 96, 6th International symposium on Temperature and Thermal Measurements in Industry and Science, 10 - 12 September 1996, Torino, Italy.

Fox, N P; Haycocks, P R; Martin, J E; Ul-Haq, I (1996) A mechanically cooled portable cryogenic radiometer. Metrologia, 32 (6). pp. 581-584.

Harrison, N J; Goodman, T M; Fox, N P; Martin, J E; White, M* (1995) Establishment of a new absolute irradiance scale at NPL, using a radiometrically calibrated black body. In: Proc. 23rd Session of the CIE, 1 - 8 November 1995.

Fox, N P (1995) Improved radiometric calibration techniques for multi-spectral remote sensing satellite instrumentation. Proc. SPIE - Int. Soc. Opt. Eng., 2585. pp. 257-266.

Fox, N P; Prior, T R; Theocharous, E (1995) Radiometric calibration of infrared detectors and thermal imaging systems. Proc. SPIE - Int. Soc. Opt. Eng., 2474. pp. 229-237.