Ferreira, K M; Bardies, M; Denis-Bacelar, A M; Fenwick, A J; Heetun, W; Lassmann, M; Tipping, J; Tran-Gia, J; Robinson, A P (2025) Preparation of radioactive phantoms with an activity traceable to international standards. Measurement Good Practice Guide. 154

Collins, S M; Koster, U; Robinson, A P; Ivanov, P; Cocolios, T E; Russell, B; Fenwick, A J; Bernerd, C; Stegemann, S; Johnston, K; Gerami, A M; Chrysalidis, K; Mohamud, H; Ramirez, N; Bhaisare, A; Mewburn-Crook, J; Cullen, D M; Pietras, B; Pells, S; Dockx, K; Stucki, N; Regan, P H (2023) Determination of the Terbium-152 half-life from mass-separated samples from CERN-ISOLDE and assessment of the radionuclide purity. Applied Radiation and Isotopes, 202. 111044

Michopoulou, S K; Dickson, J C; Gardner, G G; Gee, T R; Fenwick, A J; Melhuish, T; Monaghan, C A; O'Brien, N; Prosser, A M J; Scott, C J; Staff, R T; Taylor, J (2023) Brain PET and SPECT imaging and quantification: a survey of the current status in the UK. Nuclear Medicine Communications, 44 (10). pp. 834-842.

Deidda, D; Denis-Bacelar, A M; Fenwick, A J; Ferreira, K M; Heetun, W; Hutton, B F; McGowan, D R; Robinson, A P; Scuffham, J; Thielemans, K; Twyman, R (2023) Triple modality image reconstruction of PET data using SPECT, PET, CT information increases lesion uptake in images of patients treated with radioembolization with 90Y micro-spheres. EJNMMI Physics, 10. 30

Collins, S M; Robinson, A P; Ivanov, P; Koster, U; Cocolios, T E; Russell, B; Webster, B; Fenwick, A J; Duchemin, C; Ramos, J P; Chevallay, E; Jakobsson, U; Stegemann, S; Regan, P H; Stora, T (2022) Half-life determination of 155Tb from mass-separated samples produced at CERN-MEDICIS. Applied Radiation and Isotopes, 190. 110480

Bergeron, D E; Kossert, K; Collins, S M; Fenwick, A J (2022) Realization and dissemination of activity standards for medically important alpha-emitting radionuclides. Applied Radiation and Isotopes, 184. 110161

Siekkinen, R; Kirjavainen, A K; Koskensalo, K; Smith, N A S; Fenwick, A J; Saunavaara, V; Tolvanen, T; Iida, H; Saraste, A; Teräs, M; Teuho, J (2021) Assessment of a digital and an analog PET/CT system for accurate myocardial perfusion imaging with a flow phantom. Journal of Nuclear Cardiology, 29. pp. 1964-1972. ISSN 1071-3581

Fenwick, A J; Collins, S M; Evans, W D; Ferreira, K M; Paisey, S J; Robinson, A P; Marshall, C (2020) Absolute standardisation and determination of the half-life and gamma emission intensities of 89Zr. Applied Radiation and Isotopes, 166. 109294 ISSN 09698043

Ferreira, K M; Fenwick, A J; Ramirez, N; Chen, S (2019) The need for standardised activity measurements of Ho-166-poly (L-lactic acid) microspheres for radioembolization therapy. European Journal of Nuclear Medicine and Molecular Imaging, 46 (S1). S232.

Collins, S M; Keightley, J D; Ivanov, P; Arinc, A; Jerome, S M; Fenwick, A J; Pearce, A K (2019) The potential radio-immunotherapeutic α-emitter 227Th – part I: Standardisation via primary liquid scintillation techniques and decay progeny ingrowth measurements. Applied Radiation and Isotopes, 145. pp. 240-250. ISSN 09698043

Collins, S M; Keightley, J D; Ivanov, P; Arinc, A; Fenwick, A J; Pearce, A K (2019) The potential radio-immunotherapeutic α-emitter 227Th – part II: Absolute γ-ray emission intensities from the excited levels of 223Ra. Applied Radiation and Isotopes, 145. pp. 251-257. ISSN 09698043

Fenwick, A J; Ferreira, K M; Collins, S M; Keightley, J D; Pearce, A K; Denis-Bacelar, A M; Wevrett, J L; Robinson, A P (2018) Accurate activity measurements for 223Ra? In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Underwood, C; Ferreira, K M; Russell, B; Fenwick, A J; Ivanov, P (2018) Development of a routine method for dissolution of resin microspheres for Y-90 measurement. In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Denis-Bacelar, A M; Fenwick, A J; Ferreira, K M; Robinson, A P; Wevrett, J L (2018) Direct Monte Carlo simulations for accurate diagnostic and therapeutic dosimetry calculations. In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Denis-Bacelar, A M; Fenwick, A J; Ferreira, K M; Robinson, A P; Wevrett, J L (2018) Impact of tumour morphology on routine clinical dosimetry calculations in molecular radiotherapy. In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Ferreira, K M; Fenwick, A J; Robinson, A P; Denis-Bacelar, A M; Wevrett, J; Keightley, J D (2018) Intercomparison exercises: why is it important to calibrate radionuclide calibrators for different radionuclides. In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Fenwick, A J; Keightley, J D; Denis-Bacelar, A M; Ferreira, K M; Wevrett, J L; Robinson, A P (2018) A novel method for accurate activity measurements of emerging 227Th-labelled conjugates. In: Annual Congress of the European Association of Nuclear Medicine, 13-17 October 2018, Dusseldorf, Germany.

Ferreira, K M; Fenwick, A J (2018) I-123 intercomparison exercise: assessment of measurement capabilities in UK hospitals. Applied Radiation and Isotopes, 134. pp. 108-111.

Fenwick, A J; Wevrett, J L; Ferreira, K M; Denis-Bacelar, A M; Robinson, A P (2018) Quantitative imaging, dosimetry and metrology; where do National Metrology Institutes fit in? Applied Radiation and Isotopes, 134. pp. 74-78.

Ferreira, K M; Collins, S M; Fenwick, A J (2017) Half-life measurement of the medical radioisotope 177Lu produced from the 176Yb(n,γ) reaction. EPJ Web of Conferences, 146. 08002 ISSN 2100-014X

D'Arienzo, M*; Cazzato, M*; Cozzella, M L*; Cox, M G; D'Andrea, M*; Fazio, A*; Fenwick, A J; Iaccarino, G*; Johansson, L C; Strigari, L*; Ungania, S*; De Felice, P* (2016) Gamma camera calibration and validation for quantitative SPECT imaging with Lu-177. Appl. Radiat. Isot., 112. pp. 156-164.

Fenwick, A J; Ferreira, K M; Collins, S M (2016) Measurement of the 109Cd half-life. Appl. Radiat. Isot., 109. pp. 151-153.

Ferreira, K M; Fenwick, A J; Arinc, A; Johansson, L C (2016) Standardisation of 90Y and determination of calibration factors for 90Y microspheres (resin) for the NPL secondary ionisation chamber and a Capintec CRC-25R. Appl. Radiat. Isot., 109. pp. 226-230.

Fenwick, A J; Merrett, J; Johansson, L C (2015) Comparison of quantitative Lu-177 measurements in European hospitals. Eur. J. Nucl. Med. Mol. Imag., 42. S38-S39

Collins, S M; Pearce, A K; Ferreira, K M; Fenwick, A J; Regan, P H; Keightley, J D (2015) Direct measurement of the half-life of 223Ra. Appl. Radiat. Isot., 99. pp. 46-53.

D'Arienzo, M*; Cazzato, M*; Ungania, S*; Cozzella, L*; Laccarino, G*; D'Andrea, M*; Strigari, L*; Fenwick, A J; Johansson, L C; Cox, M G; De Felice, P* (2015) Gamma camera calibration for SPECT based quantitiative imaging with Lu-177. Eur. J. Nucl. Med. Mol. Imag., 42. S331-S332

Fenwick, A J; Johansson, L C; Spezi, E*; Evans, W*; Marshall, C* (2015) Metrology for Zr-89 in the clinic. Eur. J. Nucl. Med. Mol. Imag., 42. S342-S343

Merrett, J; Fenwick, A J; Scuffham, J*; Johansson, L C; Nisbet, A* (2015) One size fits all? Assessment of the use of a simple calibration protocol for quantitative SPECT/CT imaging of 177Lu in European hospitals. Eur. J. Nucl. Med. Mol. Imag., 42. S184.

Fenwick, A J; Marshall, C*; Spezi, E*; Evans, W*; Johansson, L C (2015) Quantitative imaging of Zr-89 on a pre-clinical PET/CT system. Eur. J. Nucl. Med. Mol. Imag., 42. S415.

Keightley, J D; Pearce, A K; Fenwick, A J; Collins, S M; Ferreira, K; Johansson, L C (2015) Standardisation of Ra-223 by liquid scintillation counting techniques and comparison with secondary measurements. Appl. Radiat. Isot., 95. pp. 114-121.

Gregory, R*; Fenwick, A J; Merrett, J; Scuffham, J*; Gear, J*; Rushforth, D*; Murray, I*; Flux, G* (2015) Standardisation of dosimetry for a multicentre trail of selumetinib enhanced radioiodine therapy for thyroid cancer. Eur. J. Nucl. Med. Mol. Imag., 42. S329.

Fenwick, A J; Baker, M*; Ferreira, K; Keightley, J D (2014) Comparison of 90Y and 177Lu measurement capability in UK and European hospitals. Appl. Radiat. Isot., 87. pp. 10-13.

Green, A J; Fenwick, A J; Johansson, L C; Smyth, V (2014) Dead-time in high count-rate SPECT acquisition. Eur. J. Nucl. Med. Mol. Imag., 41. S552.

Baker, M*; Fenwick, A J; Ferreira, K; Keightley, J D; Johansson, L C; Collins, S M (2014) Migration to new ampoule types for the NPL secondary standard ionisation chambers. Appl. Radiat. Isot., 87. pp. 224-228.

Merrett, J L*; Fenwick, A J; Yatigammana, D N B*; Scuffham, J W*; Johansson, L C; Nisbet, A* (2014) Quantitative imaging of Lu-177 on a Symnia T6 SPECT/CT. Eur. J. Nucl. Med. Mol. Imag., 41. S222.

D'Arienzo, M*; Cozzella, L*; Fazio, A*; Carconi, P*; Laccarino, G*; D'Andrea, M*; Ungania, S*; Cazzato, M*; Strigari, L*; Fenwick, A J; Johansson, L C; De Felice, P* (2014) SPECT calibration and activity determination in molecular radiotherapy with 177Lu. Eur. J. Nucl. Med. Mol. Imag., 41. S334.

Fenwick, A J; Merrett, J L*; Green, A J; Johansson, L C; D'Arienzo, M* (2014) A proposed calibration technique for quantitative Lu-177 measurements in SPECT/CT. Eur. J. Nucl. Med. Mol. Imag., 41. S553.

Fenwick, A J; Keightley, J D; Baker, M; Johansson, L C; Harms, A V (2011) Comparison of Y-90 measurements in UK hospitals, 2009. NPL Report. IR 20