Maybe it'll still get accepted

Got my hands on a copy of the paper that beat mine to publication.

The end result they come up with is the same as mine, although their work was done on just one gamma camera and had a little more focus on image quality than mine did. I was able to do some cross-camera comparisons with my data and had a little more analysis on the core question (is T1/2 the same between collimators). I think mine still has a good chance of being published. Hopefully the reviewers will also think it's a worthy addition to this other paper. I just won't have first post bragging rights.