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[en] Correct operation of conventional analogue Gamma Cameras implies a good conformation of the position signals that correspond to a specific photo-peak of the radionuclide of interest. In order to achieve this goal the energy spectrum from each photo multiplier tube (PMT) has to be set within the same energy window. For this reason a reliable tuning system is an important part of all gamma cameras processing systems. In this work is being tested and evaluated a new prototype of tuning card that was developed and setting up for this purpose. The hardware and software of the circuit allow the regulation if each PMT high voltage. By this means a proper gain control for each of them is accomplished. The Tuning Card prototype was simulated in a virtual model and its satisfactory operation was proven in a Siemens Orbiter Gamma Camera. (Author)
Source
Instituto Superior de Ciencias y Tecnologias Aplicadas (InSTEC), La Habana (Cuba); Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), La Habana (Cuba); Agencia de Energia Nuclear (AENTA), La Habana (Cuba); Museo Nacional de Bellas Artes, La Habana (Cuba); Servicios Global, La Habana (Cuba); Universiteit Antwerpen, Amberes (Belgium); International Centre for Theoretical Physics (ICTP), Trieste (Italy); International Atomic Energy Agency (IAEA), Vienna (Austria); Empresa Nacional de Software (DESOFT), La Habana (Cuba); Biblioteca Publica Ruben Martinez Villena, La Habana (Cuba); 1 CD-ROM; ISBN 978-959-300-069-7; 
; Feb 2015; 7 p; WONP-NURT 2015: 15. Workshop on Nuclear Physics; La Habana (Cuba); 9-13 Feb 2015; 9. International Symposium on Nuclear and Related Techniques; La Habana (Cuba); 9-13 Feb 2015; Available from Centro de Aplicaciones Tecnologica y Desarrollo Nuclear (CEADEN), La Habana (CU), Email. natacha@ceaden.edu.cu; Centro de Gestion de la Informacion y Desarrollo de la Energia (Cubaenergia), La Habana (CU) ,Email. belkis@cubaenergia.cu; 9 figs, 16 refs.
; Feb 2015; 7 p; WONP-NURT 2015: 15. Workshop on Nuclear Physics; La Habana (Cuba); 9-13 Feb 2015; 9. International Symposium on Nuclear and Related Techniques; La Habana (Cuba); 9-13 Feb 2015; Available from Centro de Aplicaciones Tecnologica y Desarrollo Nuclear (CEADEN), La Habana (CU), Email. natacha@ceaden.edu.cu; Centro de Gestion de la Informacion y Desarrollo de la Energia (Cubaenergia), La Habana (CU) ,Email. belkis@cubaenergia.cu; 9 figs, 16 refs.
No abstract available
Source
Chinese Academy of Sciences, Lanzhou (China). Inst. of Modern Physics; National Laboratory of Heavy Ion Accelerator, Lanzhou (China); 173 p; ISBN 7-5022-2933-7; ; 2002; p. 100; 2 figs.
; 2002; p. 100; 2 figs.
No abstract available
Journal
[en] This paper proposes and investigates an automated robot-based system for tile insertion of self-tapping screws into some unthreaded holes using Visual Servoing. As approximately a quarter of assembly operations in the manufacture of commercial products are screw insertions, therefore automation in this area is highly desirable. Research of the events occurring during the insertion of self-tapping screws has been largely neglected and automated system presently available do not provide adequate and reliable insertions. The focus of this paper is on the key stage of the insertion procedure i.e. detection of the insertion location by means of a Camera. The controller suggested is PD-type that includes an explicit nonlinear gravity compensation term in the control law. The advantageous point of the controller is that in spite of the disturbances; the controller is able to regulate the arm about the set-point solution. (author)
Journal
Mehran University Research Journal of Engineering and Technology; ISSN 0254-7821; ; v. 27(1); p. 25-36
; v. 27(1); p. 25-36
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