  In this paper a new type of passive neutron detector based on the already
existing one, CR39, is described. Its operation was verified by three different
neutron sources: an Americium-Beryllium (Am241-Be) source; a TRIGA type nuclear
reactor; and a fast neutron reactor called TAPIRO. The obtained results,
reported here, positively confirm its operation and the accountability of the
new developed detecting technique.
