div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220402005e36fec9671ad658607ea3d8html5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: · IBIS SPI INTEGRAL Coded Aperture Imagingffifi Background I 10 10 10 10 10 10 10 10 Photo Abso rpti on IOeV 10 kev ergscma sec Co n 105 106 MeV pair Creation 107 108 109 GeV src=https:reader042fdocumentsinreader042viewer20220402005e36fec9671ad658607ea3d8html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdiv