Noise Considerations in a “Room Temperature” Induction Technique Magnetic Monopole Detector
The prediction of magnetic monopoles in Grand Unified Theories and the candidate monopole found by Cabrera1 have given an impetus to recent searches for these particles. Arguments involving the draining of the galactic magnetic field2 lead to the conclusion that the flux of magnetic monopoles should be low and that, consequently, large area detectors (100’s of square meters) would be needed in order to obtain a reasonable event rate. Although detectors employing conventional ionization and scintillation techniques offer reasonably inexpensive means of achieving the required surface area (and are being used and proposed for this purpose) they suffer from the disadvantage of being unable to detect very low velocity monopoles (β < 6 × 10−4) — a velocity range in which it might be expected to find a comparatively large monopole flux. By contrast, induction techniques are, in principle, sensitive to all velocities and, in addition, offer a means of measuring the monopole’s magnetic charge, a quantity of fundamental theoretical importance.
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