Processor boards alignment, fine tuning and quality control have been carried out on the Siemens large field of view (LFOV) Gamma Camera at Nuclear Medicine Centre at Korle-Bu Teaching Hospital (KBTH) after a damaged power supply board was restored. The input voltages i.e. various low and high voltage values were checked after the restoration to be +14.995V, -14.998, +12.001V, 12.000V, +5.000V,-5.001V, -100.000V, 200.000V which were within the standard range.. The integral uniformity for the central field of view (CFOV) after the fine tuning and alignment was found to be 1.64% whiles the integral uniformity for useful field of view (UFOV) was 1.67%. The differential uniformity for the CFOV was 1.13% while that of the UFOV was 1.26%. The integral and differential uniformities values for CFOV and UFOV were found to be within the acceptable test range of 1% to 4% which conformed to the standard set by NEMA, the manufacturers of the camera. Therefore the performance of the gamma camera after the restoration is good and would not affect interpretations of clinical studies.

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