Here's a different look at some tracks...
In the first time the term 'strange' radiation was used in paper of
L. Uroutzkoev with co-workes, where in electro-explosive experiments
realized on metal wires fixed in a liquid the high-energy radiation has
been detected on nuclei photographic plates, located out of explosion
camera . In sediment formed in the liquid the essential amount of
new chemical elements (up to 1019 new atoms) are detected. In the
paper it has been established experimentally that the radiation detected
is electrically neutral but interacts with magnetic field. The authors of
this paper put forward a prudent supposition that in the condition of
electro-explosion magnetic monopoles can be born or generated. Later
with the usage of the conversion Mossbauer spectroscopy it has been
shown experimentally that accumulation effect (with further effect of
relaxation) of this radiation takes place in ferromagnetic films
imbedded in the external magnetic field . In the experiments
realized [1, 2] the source of radiation was electro-explosion of metal
imbedded into liquid. The discharge parameters of the capacitance
battery were the following: the tension 5 kV and the value of the
current 150 kA.
Paradigmnoia often has dismissed these kind of marks as a scratch from some solid trapped between two rigid plates. The ones seen in emulsions are hard to dismiss this way, as nothing touched those surfaces. Matsumoto found traces in his much thicker nuclear emulsion plates that were of much more complex shapes and also he was able to determine the traces had a 3D component (the advantage of using a thicker nuclear plate), but more importantly, Matsumoto had controls where no marks were found.