Vienna, Austria
  26 Jun 2017 - 30 Jun 2017

P.C. Florido1 , E.L. Nassif1 , M. Marchioni2 , A.E. De María1

1INVAP, Bariloche, Argentina
2Instituto depende de la Comisión Nacional de Energía Atómica (CNEA), Instituto Balseiro, Bariloche, Argentina


For gamma radiation fields, current "gamma pictures" are created nowadays by commercially available "gamma cameras", using either segmented or pin-hole collimators, as well as Compton cameras, thus creating expensive, large and slow detectors, rather unsuitable to be used for verification of undeclared activities. A new concept of "gamma vision", based on a fully different concept of a position sensitive detector is presented. In this concept, developed by INVAP each detection element measures the gamma rays in a defined solid angle, using a lobular, compact, lightweight and high efficiency collimator (at significantly lower costs). Unlike existing gamma cameras, the presented gamma vision concept don´t use the usual concept of lens + focus. For this reason- and differentiating it from existing gamma cameras-, the system is called Gamma Viewfinder (patent pending). INVAP concept is similar to that of composed fly-eyes, producing a gamma image using a set of adjacent gamma sensors, each sensor including its own high efficiency viewing lobe overlapping neighbor elements, in an assembly that lacks of common focus. A suitable deconvolution of the incident gamma field using math processing provides increased image sharpness, efficiency and speed.

Session information

Start time: 27/Jun/2017, 16:15 (local time)

Duration: 15 minutes

Location: Hofburg, Geheime Ratstube