A shutter timer error of a 60 Co unit can be classified as which of the following?

A shutter timer error in a cobalt-60 (60 Co) unit can be classified as positive or negative because it can either result in an overestimation or underestimation of radiation dose delivery. Shutter timers are meant to accurately control the timing of radiation emitted during treatments. If the timer is set incorrectly, there may be instances where the exposure time is longer than the intended time (leading to a positive error) or shorter than intended (leading to a negative error). This variability in timing can affect the total dose received, making it essential to recognize that errors can manifest in either direction. Thus, categorizing them as positive or negative effectively encompasses the possible outcomes of a shutter timer error.