CLAUDIO DOMIENIKAN
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Artigo IPEN-doc 26204 Characterization of a portable thermal neutron detector2019 - COSTA, PRISCILA; RAELE, MARCUS P.; DOMIENIKAN, CLAUDIO; MADI FILHO, TUFIC; ZAHN, GUILHERME S.; GENEZINI, FREDERICO A.A portable thermal neutron detector prototype, using a PIN-type silicon photodiode coupled to a boron converter, was developed at the Nuclear and Energy Research Institute (IPEN-CNEN/SP). Several boron layers were made by Pulsed Laser Deposition method and two different prototypes were made using distinct approaches in the associated electronics. The prototypes were characterized by measurements with the cold neutron beam at PHADES (Polarized 3He and Detector Experiment Station), in the NIST Center for Neutron Research. The distance between the prototype and the neutron source was different for each prototype: 70 cm (prototype one) and 7 cm (prototype two). The linearity behavior was verified for both prototypes in order to verify the relationship between counts and neutron fluence. The intrinsic efficiency values obtained for prototypes one and two were, respectively, (1.78 ± 0.01)% and (5.2 ± 0.4)%. The angular dependence was verified only for prototype one. The concept of this detector can be applied in a future dosimeter project.Artigo IPEN-doc 24095 Low-cost amplifier for alpha detection with photodiode2017 - DOMIENIKAN, CLAUDIO; COSTA, PRISCILA; GENEZINI, FREDERICO A.; ZAHN, GUILHERME S.A low-cost amplifier for Hamamatsu S3590-09 PIN photodiode to be used in alfa detection is presented. This amplifier consists basically of two circuits: a pulse preamplifier and a shaper-driver. The PIN photodiode is reverse-biased and connected to a charge preamplifier input. Incident alpha particles generate a small current pulse in the photodiode. The integrating circuit of the low noise preamplifier transforms current pulse into a voltage pulse with amplitude proportional to the charge carried by the current pulse. The shaper-driver consists of a differentiator and an integrator and is responsible for filtering and further amplifying the preamplifier signal, generating a NIM-compatible energy pulse. The performance of the set photodiode-amplifier was successively tested through the use of a 243Am radioactive source. The low-cost photodiode amplifier was designed and constructed at IPEN - CNEN/SP using national components and expertise.Artigo IPEN-doc 10636 Electronic module for beam shutter control2005 - DOMIENIKAN, C.; SCHOUERI, R.M.; TOLEDO, F.; PARENTE, C.B.R.Artigo IPEN-doc 19433 Development and installation of an automatic sample changer for neutron activation analysis2013 - DOMIENIKAN, CLAUDIO; LAPOLLI, ANDRE L.; SCHOUERI, ROBERTO M.; MOREIRA, EDSON G.; VASCONCELLOS, MARINA B.A.Artigo IPEN-doc 19314 A new electronic circuit for nim rack power supply2013 - TOLEDO, FABIO de; DOMIENIKAN, CLAUDIO; ZAHN, GUILHERME S.Artigo IPEN-doc 18998 Development of a time-variable nuclear pulser for half life measurements2013 - ZAHN, GUILHERME S.; DOMIENIKAN, CLAUDIO; CARVALHÃES, ROBERTO P.M.; GENEZINI, FREDERICO A.Artigo IPEN-doc 12045 An elelectronic delay for perturbed gama-gama angular correlation spectrometer2007 - MERCURIO, MARCIO E.; CARBONARI, ARTUR W.; DOMIENIKAN, CLAUDIO; SAXENA, RAJENDRA N.; CORDEIRO, MOACIR R.; PEREIRA, LUCIANO F.D.Artigo IPEN-doc 17072 Development of a digital log ratemeter2011 - DOMIENIKAN, CLAUDIO; BRITO, ANDREIA; TOLEDO, FABIO de; ZAHN, GUILHERME S.Artigo IPEN-doc 17065 Electronic module for 6-BaFsub(2) - detectors positioning control2011 - DOMIENIKAN, CLAUDIO; LAPOLLI, ANDRE L.; TOLEDO, FABIO de; ZANINI, AMELIA Y.K.; TRINDADE, GIVANILSON da S.Artigo IPEN-doc 07203 Uma interface eletronica para aquisicao de 12 espectros de coincidencias gama-gama atrasadas2000 - DOMIENIKAN, C.; SAXENA, R.N.; CARBONARI, A.W.