Detection of the September maximum in the primary near-Earth daemon flux at high (~60 o ) Northern latitudes by our set-up with a plane horizontal scintillator is plagued by purely geometric factors; indeed, because of the Earth's rotation axis being tilted, the daemons catching up with the Earth in outer Near-Earth, Almost Circular Heliocentric Orbits (NEACHOs) strike the Earth along close-tohorizontal paths. Nevertheless, application of only two oppositely oriented, specially designed "dark electron multipliers" of the type TEU-167d (only their ø125-mm front disc is coated on the inside by a thick, ~0.5 µm Al layer, which permits such multipliers to detect primarily daemons flying inside them from the base to the disc) has made it possible for us to detect in one experiment, at a confidence level of >3σ, a flux of daemons captured from NEACHOs into Geocentric Earth-Surface-Crossing Orbits, as well as to record a decrease in the velocity of these objects from ~10 to ~7 km/s in a characteristic time of ~1 month resulting from their being slowed down in transits through the Earth's body. Keywords: DM detection; Planck black holes; DM objects' interaction with matter PACS Nos.: 95.35.+d Introduction. On the Interaction of the Daemon with MatterAny object can be detected only through its interaction with matter. The fairly strong interaction with matter of daemons, these negative, multiply electrically charged objects of tentatively Planck nature [1-5], makes the task facing a researcher a far from trivial, manyfaceted problem. We are going to consider (and use) here only some of its aspects.Electromagnetic capture by a negative daemon, say, of a Zn nucleus in the ZnS(Ag) scintillator gives rise to excitation of the nucleus, with the ensuing ejection of a host of particles (electrons, nucleons, γ's) and generation of scintillations similar in shape to the ones caused by α-particles (Heavy Particle Scintillations -HPSs) [6]. Such capture of a nucleus in a fairly thick internal metallic (e.g., Al) coating of a PM tube also initiates emission of electrons. These electrons, similar to the photoelectrons, undergo in a PM tube trivial multiplication, which gives rise to formation of an electric signal at the instrument output [7].In our previous publication [8], we have reported on a successful detection of daemons with a TEU-167 (Dark Electron Multiplier, DEM), a modified FEU-167 photoelectron multiplier, in which not only the rear (conical) and side (cylindrical) surfaces of the cathode section of the bulb, but the front disc (ø125 mm) as well, were coated on the inside with a fairly thick (~0.5 µm) aluminum film.The results obtained in the experiment were very promising for the first attempt. These DEM experiments not only have corroborated the existence of a diurnal variation in the daemon flux from NEACHOs [8,9], which followed from celestial mechanics considerations, but offered also a lower estimate of its maximum morning level f ≥ 3.4×10 -7 cm -2 s -1 . The measurements were conducted in March 2009. The response o...
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