english: But the problem was that the gamma detectors were these huge, bulky tubes, and they were filled with these scintillating crystals, and you just couldn't get them close enough around the breast to find small tumors.
non_english: Maar het probleem was dat de gammadetectoren enorm omvangrijke tubes waren vol met sprankelende kristallen en die kon je niet dicht genoeg bij de borst brengen om kleine tumoren op te sporen.