No abstract

We propose a system for earthquake prediction research in the region of VHF frequency band. The system allows us to observe the sporadic radiated electromagnetic wave noises and the pre-seismic phenomena of radio waves.

It is shown that a thermoluminescent (TL) sheet stack detector, consisting of TL sheets and medical x-ray films, is an effective nuclearite detector. Nuclearite energy loss is not explicitly used for the estimation of the TL stack sensitivity to nuclearites, but implicitly by considering ways of energy deposition. The 90% confidence level flux limit obtained with the TL stack detector is given for a certain β-M range of nuclearites. For nuclearites of β = 10 −3 at sea level and M 2 × 10 15 GeV c −2 , the limit is 1.3 × 10 −13 s −1 cm −2 sr −1 .