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Browsing by Author "Hernández Hernández, Liczandro"

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Browsing by Author "Hernández Hernández, Liczandro"

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    ALBIRA: A small animal PET/SPECT/CT imaging system 
    Sánchez Martínez, Filomeno; Orero Palomares, Abel; Soriano Asensi, Antonio; Correcher Salvador, Carlos; Conde Castellanos, Pablo Eloy; González Martínez, Antonio Javier; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Rodríguez Álvarez, María José; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María; Chapman, S.E.; Leevy, W.M. (American Association of Physicists in Medicine: Medical Physics, 2013-05)
    Purpose: The authors have developed a trimodal PET/SPECT/CT scanner for small animal imaging. The gamma ray subsystems are based on monolithic crystals coupled to multianode photomultiplier tubes (MA-PMTs), while computed ...
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    Design of the PET–MR system for head imaging of the DREAM Project 
    González Martínez, Antonio Javier; Conde, P.; Hernández Hernández, Liczandro; Herrero Bosch, Vicente; Moliner Martínez, Laura; Monzó Ferrer, José María; Orero Palomares, Abel; Peiró Cloquell, Antonio; Rodríguez-Alvarez, M.J.; Ros García, Ana; Sánchez Martínez, Filomeno; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2013-02-21)
    In this paper we describe the overall design of a PET–MR system for head imaging within the framework of the DREAM Project as well as the first detector module tests. The PET system design consists of 4 rings of 16 ...
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    Expectation maximization (EM) algorithms using polar symmetriesfor computed tomography(CT) image reconstruction 
    Rodríguez Álvarez, María José; Soriano Asensi, Antonio; Iborra Carreres, Amadeo; Sánchez Martínez, Filomeno; González Martínez, Antonio Javier; Conde, P.; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Orero Palomares, Abel; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2013-09-01)
    We suggest a symmetric-polar pixellation scheme which makes possible a reduction of the computational cost for expectation maximization (EM) iterative algorithms. The proposed symmetric-polar pixellation allows us to deal ...
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    Monolithic crystals for PET devices: optical coupling optimization 
    González Martínez, Antonio Javier; Peiró, A.; Conde, P.; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Orero Palomares, Abel; Rodríguez-Álvarez, M.J.; Sánchez Martínez, Filomeno; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2013-12-11)
    [EN] In this work we present a method to efficiently collect scintillation light when using monolithic scintillator crystals. The acceptance angle of the scintillation light has been reduced by means of optical devices ...
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    Results of a combined monolithic crystal and an array of ASICs controlled SiPMs 
    Conde Castellanos, Pablo Eloy; González Martínez, Antonio Javier; Hernández Hernández, Liczandro; Bellido, P.; Iborra Carreres, Amadeo; Crespo Navarro, Efren; Moliner Martínez, Laura; Rigla, JP.; Rodríguez Álvarez, María José; Sánchez, F.; Seimetz, Michael; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Elsevier, 2014-01)
    [EN] In this work we present the energy and spatial resolutions we have obtained for a γ ray detector based on a monolithic LYSO crystal coupled to an array of 256 SiPMs. Two crystal configurations of the same trapezoidal ...
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    Simulation study of resistor networks applied to an array of 256 SiPMs 
    González Martínez, Antonio Javier; Moreno, Manuel; Barberá, Julio; Conde Castellanos, Pablo Eloy; Hernández Hernández, Liczandro; Moliner Martínez, Laura; Monzó Ferrer, José María; Orero Palomares, Abel; Peiró Cloquell, Antonio; Polo Collado, Ramiro; Rodríguez Álvarez, María José; Ros García, Ana; Sánchez Martínez, Filomeno; Soriano Asensi, Antonio; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)
    [EN] In this work we describe a procedure to reduce the number of signals detected by an array of 256 Silicon Photo-multipliers (SiPMs) using a resistor network to divide the signal charge into few readout channels. Several ...