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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: IEEE Trans Nucl Sci. 2014 Jun;61(3):1174–1181. doi: 10.1109/TNS.2014.2303119

Fig. 1.

Fig. 1

LaPET’s 38880 crystals are separated azimuthally into 24 detector modules and imaged by 432 PMTs (51 mm ϕ). The new electronics obey the same 24-fold symmetry, sharing edge PMT data between neighboring sectors.