Systems for a photomultiplier

A photomultiplier device, comprising:

• a plurality of microcells, each microcell comprising an active area;
• a plurality of quenching resistors, each respective quenching resistor coupled to a respective active area, each quenching resistor having a triangular shaped cross-section;
• and
• a signal line coupled to each quenching resistor, the signal line having a triangular shaped cross-section.

A medical imaging detector module, comprising:

• a scintillator configured to absorb ionizing radiation and convert the ionizing radiation into optical photons;
• and
• a photomultiplier coupled to the scintillator, the photomultiplier configured to receive the optical photons and to convert the optical photons into corresponding electrical signals, the photomultiplier including:
• a plurality of photon-sensitive active areas each surrounded by a photon-insensitive inactive area;
• a plurality of quenching resistors, each respective quenching resistor coupled to a respective active area and positioned over a portion of a respective inactive area;
• and
• a signal line coupled to each quenching resistor and positioned over another portion of a respective inactive area, the signal line including a first side surface, a second side surface, and a base, a first internal angle formed between the first side surface and the base being less than 90° and a second internal angle formed between the second side surface and the base being less than 90°.