Muon detector

Details Muon detector Muon detector

2011-01-04

2011-01-04

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

C250S307000, C250S374000, C250S382000, C250S387000, C250S389000

Reexamination Certificate

active

07863571

ABSTRACT:
An economical position-sensing muon detector for muon radiography is constructed using a pair of glass plates spaced apart by crossed parallel barriers. Smaller detector wires are interspersed between the barriers and an ionizing gas is used to fill the space between the plates. A muon striking near where detector wires cross causes a local momentary current flow. The current flow in two of the detector wires is sensed to determine the coordinates of the muon impact. Such muon detectors can be assembled in modular surface arrays and such arrays can be positioned on spatial surfaces for differential inspection and detection of muons transiting through and emanating from objects placed within the inspection space. Such a detector constitutes a novel and useful invention in providing an inspection device and means for cargo or cargo vehicles that detects muons transiting through and emanating from hazardous materials intended to cause malicious harm.

REFERENCES:
patent: 4504438 (1985-03-01), Levy et al.
patent: 4965861 (1990-10-01), Filthuth
patent: 2008/0128604 (2008-06-01), Bryman
patent: 2008/0265156 (2008-10-01), Morris et al.
patent: 2007271400 (2007-10-01), None

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