The 8-pi spectrometer was a complex spectrometer built at Chalk River for detailed nuclear physics measurements. The spectrometer contained many complex-shaped, bismuth-germanate (BGO), scintillator detectors. The geometry made assembly very difficult. Because the spectrometer elements were rather heavy, it was an engineering challenge to hold the components without attenuating gamma rays destined for detection or blocking access to the outer set of high-resolution detectors. These dummy modules, approximately 23 cm in length and of comparable mass, were used in development and verification of the support structure. Following the shutdown of TASCC in 1997, the spectrometer was moved to other nuclear physics laboratories within North America.
