An approach for sterilizing microorganisms at a target object employs a flashlamp
system including means for generating pulses of light, and for deactivating microorganisms within the target object by illuminating the target object with the pulses of light having been generated; a photo-sensitive
detector positioned so as to receive a portion of each of the pulses of light as a measure of an amount of light illuminating the target object, for generating an output
signal in response thereto; and a
control system, coupled to the flashlamp
system and the photo-sensitive
detector, for determining, in response to the output
signal, whether the pulses of light are sufficient to effect a prescribed level of deactivation of microorganisms at the target object. In accordance with this approach sterilizing microorganisms involves steps of generating a pulse of light; deactivating microorganisms at the target object by directing the pulse of light having been generated at the target object; receiving a portion of the pulse of light as a measure of an amount of the pulse of light illuminating the target object; generating an output
signal in response to the receiving of the portion of the pulse of light; and determining, in response to the generating of the output signal, whether the pulse of light is sufficient to effect a prescribed level of deactivation of microorganisms at the target object.