Relativistic Short Range Phenomena and Space‐Time Aspects of Pulse Measurements

Particle physics is increasingly being linked to engineering applications via electron microscopy, nuclear instrumentation, and numerous other applications. It is well known that relativistic particle equations notoriously fail over very short space‐time intervals. This paper introduces new versions of Dirac_s equation and of the Klein‐Gordon equation that are suitable for short‐range phenomena. Another objective of the paper is to demonstrate that pulse measurement methods that are based on the wave nature of matter do not necessarily correlate with physical definitions that are based on the corpuscular nature of particles.