Ballistic deficit

Amplifiers are available which also provides an alternative means of pile-up rejection by detecting the delayed peaking time of a pile-up pulse. Since pulses affected by ballistic deficit or charge trapping will also be delayed, these pulses will also be rejected. 

BALLISTIC DEFICIT Peak broadening when the charge collection time is long compared to the amplifier shaping time. 

GATED INTEGRATOR (GI) A pulse processor that, in effect, creates an output pulse of height proportional to the area of the input pulse, rather than its height, in order to overcome ballistic deficit at short shewing time. Used for high count rate measurements. 

A 74-year-old woman had a 3-year history of mild dysarthria, dizziness, and gait ataxia, accompanied by two transient ischemic attacks with involuntary ballistic movements of her left arm lasting several seconds each, and another transient ischemic attack with a right homonymous hemianopia lasting 30 minutes. About 45 minutes after her first-ever oral administration of dipyridamole plus aspirin she developed a transient cerebellar deficit that reproduced features of previous vertebrobasilar ischemic events, as well as severe headache, flushing, and diarrhea. 

---