ISO/TS 18090的本部分直接适用于脉冲持续时间为0.1 ms至10 s的脉冲X射线。这涵盖了出版时医学诊断中使用的整个范围。一些规范也适用于更短的脉冲；一个例子是一个脉冲的空气比释动能。例如，可以通过X射线闪光装置或高强度飞秒激光产生这样的脉冲。其他规格不适用于更短的脉冲；一个例子是空气比释动能率的时间依赖性行为。由于技术原因，这可能无法测量，因为没有合适的仪器可用，例如飞秒激光产生的脉冲。交叉引用:IEC 60050-395:2014 IEC 61267:2005 ISO 4037-2:1997ISO 4037-1:1996ISO 4037- 3:1999ICRU 34IEC 60050包含以下内容:勘误表，2019年11月

This part of ISO/TS 18090 is directly applicable to pulsed X-radiation with pulse duration of 0,1 ms up to 10 s. This covers the whole range used in medical diagnostics at the time of publication. Some specifications may also be applicable for much shorter pulses; one example is the air kerma of one pulse. Such a pulse may be produced, e.g. by X-ray flash units or high-intensity femtosecond-lasers. Other specifications are not applicable for much shorter pulses; one example is the time-dependent behaviour of the air kerma rate. This may not be measurable for technical reasons as no suitable instrument is available, e.g. for pulses produced by a femtosecond-laser.Cross References:IEC 60050-395:2014IEC 61267:2005ISO 4037-2:1997ISO 4037-1:1996ISO 4037-3:1999ICRU 34IEC 60050Incorporates the following:Corrigendum, November 2019