  With the development of laser technologies, nuclear reactions can happen in
high-temperature plasma environments induced by lasers and have attracted a lot
of attention from different physical disciplines. However, studies on nuclear
reactions in plasma are still limited by detecting technologies. This is mainly
due to the fact that extremely high electromagnetic pulses (EMPs) can also be
induced when high-intensity lasers hit targets to induce plasma, and then cause
dysfunction of many types of traditional detectors. Therefore, new particle
detecting technologies are highly needed. In this paper, we report a recently
developed gated fiber detector which can be used in harsh EMP environments. In
this prototype detector, scintillating photons are coupled by fiber and then
transferred to a gated photomultiplier tube which is located far away from the
EMP source and shielded well. With those measures, the EMPs can be avoided, and
this device has the capability to identify a single event of nuclear reaction
products generated in laser-induced plasma from noise EMP backgrounds. This new
type of detector can be widely used as a Time-of-Flight (TOF) detector in
high-intensity laser nuclear physics experiments for detecting neutron,
photons, and other charged particles.
