![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Charalambos-Lambropoulos/publication/338643956/figure/fig6/AS:886366984499200@1588337765123/Top-A-shadowgram-formed-on-the-g-camera-by-a-point-source_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Stavros-Seferlis/publication/47744361/figure/fig1/AS:307372670111744@1450294763612/Schematic-illustration-of-the-COCAE-instrument-configuration_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Charalambos-Lambropoulos/publication/51959440/figure/fig1/AS:305769632288768@1449912569213/Reconstructed-image-resolution-for-point-like-sources-located-on-the-detectors-symmetry_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://i1.rgstatic.net/ii/profile.image/272396611485704-1441955821822_Q512/Ioannis-Kaissas.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Stavros-Seferlis/publication/51914053/figure/fig2/AS:667823382753282@1536232910059/The-triangulation-method-Estimated-source-position-as-a-function-of-the-incident-photon_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/publication/312628452/figure/fig3/AS:459138632294400@1486478588005/figure-fig3_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![PDF) Evaluation of Compton scattering sequence reconstruction algorithms for a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals | Ioannis Kaissas - Academia.edu PDF) Evaluation of Compton scattering sequence reconstruction algorithms for a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals | Ioannis Kaissas - Academia.edu](https://0.academia-photos.com/attachment_thumbnails/41720621/mini_magick20190218-10415-buuhvj.png?1550544818)
PDF) Evaluation of Compton scattering sequence reconstruction algorithms for a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals | Ioannis Kaissas - Academia.edu
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/292676377/figure/fig1/AS:340883699453982@1458284415890/The-experimental-setup-consists-of-two-energy-dispersive-gamma-ray-counting-devices-two_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Stavros-Seferlis/publication/47744361/figure/fig2/AS:307372670111745@1450294763655/The-principle-of-Compton-reconstruction-a-kinematics-of-Compton-scattering-b_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Charalambos-Lambropoulos/publication/338643956/figure/fig7/AS:886367131295744@1588337800365/Bottom-A-correlation-matrix-with-the-characteristic-peaks-and-lows-of-the-intrinsic_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/287806509/figure/tbl2/AS:670488690966546@1536868369349/SNR-and-R-PSLA-versus-acquisition-time_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/287806509/figure/fig1/AS:312290994868224@1451467383964/A-photographic-view-of-the-system-where-the-two-gamma-cameras-PSD-mask-along-with-the_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/283188778/figure/fig2/AS:616367053090818@1523964765460/A-schematic-diagram-that-depicts-the-triangulation-algorithm_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/292676377/figure/fig3/AS:669167959171076@1536553482318/a-The-position-estimation-yellow-spots-of-a-241-Am-source-placed-at-several-locations_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Stavros-Seferlis/publication/48191986/figure/fig3/AS:394324555649026@1471025708118/Simulated-energy-deposition-spectra-for-different-incident-gamma-ray-energies_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Stavros-Seferlis/publication/48191986/figure/fig5/AS:394324555649029@1471025708356/passive-and-escaped-energy-versus-the-initial-photon-energy_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/287806509/figure/fig2/AS:312290999062528@1451467384123/46_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Charalambos-Lambropoulos/publication/51959440/figure/fig5/AS:667629782069260@1536186752841/shows-the-reconstructed-imaging-resolution-versus-the-inclination-angle-for-600keV_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Charalambos-Lambropoulos/publication/51959440/figure/fig3/AS:667629782061058@1536186752703/a-azimuth-and-b-inclination-profiles-of-the-reconstructed-image-of-an-800keV-point-like_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/profile/Ioannis-Kaissas/publication/287806509/figure/tbl1/AS:670488690950147@1536868369336/Main-characteristics-of-the-two-experimental-MURA-masks_Q320.jpg)
Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví
![Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví Ioannis KAISSAS | Radiation & Medical Physicist | PhD | Greek Atomic Energy Commission, Agía Paraskeví](https://www.researchgate.net/publication/312628452/figure/fig1/AS:459138527436800@1486478563247/figure-fig1_Q320.jpg)