| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear medicine diagnostic device which can be continuously operated and can improve through-put.SOLUTION: A data collection system unit forming the medicine diagnostic device comprises multiple cooling fans for preventing failure caused by temperature rise of an IC substrate. Rotational speed of each of the cooling fans is compared with a first threshold value, and if exceeding the first threshold value, it is determined that heat radiation is sufficient. Next, the rotational speed of the cooling fan whose rotational speed is under the first threshold value is compared with a second threshold value smaller than the first threshold value, and if exceeding the second threshold value, an alarm signal is generated, and if the rotational speed of at least one of the cooling fans is equal to or under the second threshold value, the rotational speed of the cooling fan is raised. |
