Publications and communications


“Operation of a novel large area, high gain, single stage gaseous electron multiplier” F.D. Amaro, R. Roque, N.V. Duarte, A. Cortez, and J.A. Mir, Journal of Instrumentation, Volume 16, January 2021 P01033

Optical readout studies of the Thick-COBRA gaseous detector. F. Garcia, F.M. Brunbauer, M. Lisowskac, H. Müller, E. Oliveri, D. Pfeiffer, L. Ropelewski, J. Samarati, F. Sauli, L. Scharenber, A.L.M. Silva, M. van Stenis, R. Veenhof and J.F.C.A. Veloso. JINST 16 (2021) T01001 (

Monitoring the effect of gas purification of sealed MPGDs for X-ray imaging. L.F.N.D. Carramate, S. Sousa, C.D.R. Azevedo, A.L.M. Silva and J.F.C.A. Veloso JINST 14 (2019) T11010

Multi-slice Energy Resolving CT system using a THCOBRA detector operating in NeCH4. L.F.N.D. Carramate, A.L.M. Silva, C.D.R. Azevedo, S. De Francesco, A.M. da Silva, J.F.C.A. Veloso. NIMA 947 (2019) 162738

Cortez, A.F.V.; Santos, M.A.G.; Veenhof, R.; Neves, P.N.B.; Borges, F.I.G.M.; Conde, C.A.N. (2019) “Experimental ion mobility measurements for the LCTPC Collaboration”. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 936 (2019) 451-452. 10.1016/j.nima.2018.11.049

Cortez, A.F.V et al (2019) “Experimental ion mobility measurements in pure iC4H10  and Ar-iC4H10  mixtures”. JINST 14 (4) 2019. DOI:10.1088/1748-0221/14/04/P04010

Simulation of gain stability of THGEM gas-avalanche particle detectors. P.M.M. Correia, M. Pitt, C.D.R. Azevedo, A. Breskin, S. Bressler, C.A.B. Oliveira,A.L.M. Silva, R. Veenhofcand J.F.C.A. Veloso JINST 13 (2018) P01015 (

Measurements of charging-up processes in THGEM-based particle detectors. M. Pitt, P.M.M. Correia, S. Bressler, A.E.C. Coimbra, D. Shaked Renous,C.D.R. Azevedo,J.F.C.A. Veloso and A. Breskin, JINST 13 (2018) P03009 (


D.J.G. Marques, M.A.G Santos, A.F.V. Cortez, J. Escada, A.M.F. Trindade, F.P. Santos, and F.I.G.M. Borges “Measurements with the Dual Polarity Ion Drift Chamber”, RD51 Collaboration Meeting, 22-26 JUNE 2020;

A.F.V. Cortez, “A Practical Approach to Ion Mobility”, oral presentation, MPGD – New Horizons in Time Projection Chambers Workshop, 5th October to 9th October 2020, Santiago de Compostela, Spain.

V. Chepel “Liquid Xenon TPCs”, Invited review, Workshop on New Horizons in Time Projection Chambers, Santiago de Compostela, Spain, 5-9 October 2020.

V. Chepel “Scintillation Properties of Liquid Xenon Relevant for Fast Ion Spectrometry”, Invited review, Workshop on Techniques and Detectors for Heavy Ion Charge Identification in High Acceptance Spectrometers, 16-18 Dec 2020.

A.L. Silva, F.M. Brunbauer, J. Veloso F. Garcia, M- Lisowska “2D_THCOBRA: New findings through optical readout. RD51 Mini-Week, February 11, 2020

R.C. Roque, N. Viseu, A. Cortez, J. A. Mir, F. D. Amaro, “The COBRA_125: a novel large area, high gain, single stage gaseous electron multiplier”, poster presentation, Encontro Ciência ’20; Lisboa, 3-4 November 2020.

D.J.G. Marques, A.F.V. Cortez, J. Escada, F.P. Santos, C.A.N. Conde, F.I.G.M. Borges, “Negative ion mobility measurement with a Dual-Polarity Ion Drift Chamber”, oral presentation, 2nd International Workshop on Soft X-ray Single Order Diffraction Grating Development and Application – SXSDG 2019, Coimbra, Portugal.

F. Amaro “Operation of Thick Kapton based Gas Electron Multipliers”, RD51 Collaboration Meeting 21 Oct 2019. (

A.F.V. Cortez “Development of large area, high gain, thick gaseous electron mutiplier: form the GEM_100 to the COBRA_125”, IBERIAN JOINT MEETING ON ATOMIC AND MOLECULAR PHYSICS 2019, Évora, 10-12 July 2019

Spectral X-ray Imaging with a sealed THCOBRA detector. L. F. N. D. Carramate, R. Nunes, L. Almeida, J. Freire, C. D. R. Azevedo, S. De Francesco and J. F. C. A. Veloso. 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, 10-17 November 2018, Sydney, Australia. Proceedings (NSS/MIC)

David J.G. Marques, M.A.G. Santos, A.F.V. Cortez, R. Veenhof, P. Colas, P.N.B. Neves, F.P. Santos, C.A.N. Conde, F.I.G.M. Borges. “DEVELOPMENT OF A DUAL-POLARITY ION DRIFT CHAMBER & STUDY OF ION TRANSPORT PROPERTIES IN NE-CF4 MIXTURES”, 4-6 December 2018, RD51 Miniweek, CERN, Switzerland.

M.A.G.Santos, A.F.V.Cortez, M.A.Kaja, R.Veenhof, F.P.Santos, F.I.G.M.Borges and C.A.N.Conde, “Alternative Gas Mixtures for LCTPC: Ar-CF4-C2H6”, oral presentation, RD51 Collaboration Miniweek, 19th February to 22nd February 2018, CERN, Switzerland.

M.A.G.Santos, A.F.V.Cortez, R.Veenhof, F.I.G.M.Borges and C.A.N.Conde,”Ion Mobility studies in Ar-CF4-iC4H10 mixtures for the LCTPC Collaboration”,oral presentation, RD51 Collaboration Meeting and MPGD Stability workshop, 18th June to 22nd June 2018, Munich, Germany.

A.F.V. Cortez, M.A.G. Santos, R. Veenhof, P.N.B. Neves, F.I.G.M. Borges and C.A.N. Conde, “Experimental ion mobility measurements for the LCTPC Collaboration”, poster presentation, 14th Pisa Meeting on Advanced Detectors,27May–2June2018 – PM2018, La Biodola, Italy.

M.A.G.Santos, A.F.V.Cortez, R.M.Curado da Silva, P.N.B.Neves, F.P.Santos, F.I.G.M.Borges and C.A.N.Conde, “Experimental ion mobility studies of alternative gas mixtures for the LCTPC”, poster presentation, 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, 10-17 November 2018, Sydney, Australia.

M.A.G.Santos, A.F.V.Cortez, J.A.S.Barata, J.Escada, F.P.Santos, F.I.G.M.Borges and C.A.N.Conde, “Ion Mobility in Gas Mixtures for Large Volume Detectors”, poster presentation, 21st National Conference on Physics, 29 August–1 September 2018 – Física2018, Covilhã, Portugal.