Chemiluminescence compact imaging scanner

A method of scanning a luminescent sample, the method comprising:

• providing a detector bar having one or more image sensor arrays, each image sensor array having a plurality of pixel elements;
• placing on a sample bed a luminescent sample having luminescence;
• moving the detector bar with respect to the sample bed in a first pass;
• taking a first set of pixel readings over predetermined exposure times during the first pass, each pixel reading of the first set occurring at a respective x, y position;
• moving the detector bar with respect to the sample bed in a second pass, the second pass being in an opposite direction from the first pass;
• collecting a second set of pixel readings over predetermined exposure times during the second pass, wherein the first and second passes are conducted while the luminescent sample constantly fades in luminescence over time;
• and
• summing respective position x, y pixel readings between the first and second sets of pixel readings over the respective predetermined exposure times to construct an image, the summing of the first and second sets of pixel readings compensating for the constantly fading luminescence of the luminescent sample.