A radiologic computed tomography system comprising: a) a gantry configured to rotate on a first axis of rotation to allow the CT system to capture a plurality of projections of a target; b) a x-ray source affixed to the gantry and configured to generate a beam of x-ray photons; c) a x-ray detector affixed to the gantry; d) a robotic fluence gate system affixed to the gantry between the x-ray source and the x-ray detector and comprising a rotational platform configured to rotate on a second axis of rotation and a plurality of fluence modulation sheets forming a fluence gate window, the fluence gate system configured to modulate a fluence of the beam of x-ray photons; e) a robotic scatter shield system affixed to the gantry between the x-ray source and the x-ray detector and comprising a rotational platform configured to rotate on a third axis of rotation and a plurality of scatter shield sheets forming a scatter shield window, the scatter shield system configured to shield scattered x-ray photons from the x-ray detector; and f) a controller configured to perform at least: i) synchronize a speed and a phase of rotation of the gantry, the fluence gate system, and the scatter shield system to maintain a line-of-sight from the x-ray source to the x-ray detector during capture of each projection of the target; ii) activate the x-ray source when the line-of-sight is open; and iii) deactivate the x-ray source when the line-of-sight is closed. a) a gantry configured to rotate on a first axis of rotation to allow the CT system to capture a plurality of projections of a target; b) a x-ray source affixed to the gantry and configured to generate a beam of x-ray photons; c) a x-ray detector affixed to the gantry; d) a robotic fluence gate system affixed to the gantry between the x-ray source and the x-ray detector and comprising a rotational platform configured to rotate on a second axis of rotation and a plurality of fluence modulation sheets forming a fluence gate window, the fluence gate system configured to modulate a fluence of the beam of x-ray photons; e) a robotic scatter shield system affixed to the gantry between the x-ray source and the x-ray detector and comprising a rotational platform configured to rotate on a third axis of rotation and a plurality of scatter shield sheets forming a scatter shield window, the scatter shield system configured to shield scattered x-ray photons from the x-ray detector; and f) a controller configured to perform at least: i) synchronize a speed and a phase of rotation of the gantry, the fluence gate system, and the scatter shield system to maintain a line-of-sight from the x-ray source to the x-ray detector during capture of each projection of the target; ii) activate the x-ray source when the line-of-sight is open; and iii) deactivate the x-ray source when the line-of-sight is closed. i) synchronize a speed and a phase of rotation of the gantry, the fluence gate system, and the scatter shield system to maintain a line-of-sight from the x-ray source to the x-ray detector during capture of each projection of the target; ii) activate the x-ray source when the line-of-sight is open; and iii) deactivate the x-ray source when the line-of-sight is closed.