The total number of attenuation data samples collected for a single slice with a 400-degree rotation overscan in a third-generation single row detector scanner is 749250 samples.
To calculate the number of samples of attenuation data collected for the raw data of a single slice in a third-generation single row detector scanner with an overscan of 400 degrees, we must consider the number of detectors and the projections. Given that there are 750 detectors and 900 projections in a full 360-degree rotation, we need to adjust the calculation for the 400-degree rotation overscan.
The total number of attenuation data samples can be obtained by multiplying the number of detectors by the number of projections, and then adjusting it for the overscan. Since we are performing a full rotation plus extra for the overscan, we can calculate the overscan proportion as 400 degrees / 360 degrees which gives us 1.1111 (repeating). Multiplying this factor by the original number of projections provides us with the number of projections for the overscan.
Therefore, 900 projections * 1.1111 = 999 projections for the 400-degree overscan. The total number of attenuation data samples is then 750 detectors * 999 projections = 749250 samples.