What is the time between successive pulses called?

What is the time between successive pulses called?

• A. Duty factor
• B. Frame rate
• C. Pulse repetition period
• D. Pulse repetition frequency

Answer: (C)

The time between the start of one pulse and the start of the next is called the pulse repetition period. It’s a duration that sets how often pulses can be emitted. Deeper imaging requires the pulse to travel to the far wall and back before the next pulse, so PRP lengthens as depth increases. The reciprocal of this interval is the pulse repetition frequency, which tells how many pulses occur per second. Other terms describe related ideas but not the interval itself: the duty factor is the fraction of the period spent emitting the pulse (pulse duration divided by PRP); frame rate is the number of image frames produced per second and depends on PRF and scanning.

The time between the start of one pulse and the start of the next is called the pulse repetition period. It’s a duration that sets how often pulses can be emitted. Deeper imaging requires the pulse to travel to the far wall and back before the next pulse, so PRP lengthens as depth increases. The reciprocal of this interval is the pulse repetition frequency, which tells how many pulses occur per second.

Other terms describe related ideas but not the interval itself: the duty factor is the fraction of the period spent emitting the pulse (pulse duration divided by PRP); frame rate is the number of image frames produced per second and depends on PRF and scanning.