US 12,292,544 B2
Drift tube borehole muon detector system, apparatus, and method for muon radiography and tomography
Douglas William Schouten, Surrey (CA)
Assigned to Ideon Technologies Inc., Richmond (CA)
Filed by Ideon Technologies Inc., Richmond (CA)
Filed on Jul. 3, 2023, as Appl. No. 18/346,688.
Application 18/346,688 is a continuation of application No. 16/975,499, granted, now 12,007,527, previously published as PCT/CA2020/000036, filed on Mar. 20, 2020.
Claims priority of provisional application 62/821,448, filed on Mar. 21, 2019.
Prior Publication US 2024/0004102 A1, Jan. 4, 2024
Int. Cl. G01T 1/20 (2006.01); G01V 5/04 (2006.01); G01V 5/226 (2024.01); H01J 47/00 (2006.01)
CPC G01V 5/226 (2024.01) [G01T 1/20 (2013.01); G01V 5/04 (2013.01); H01J 47/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A muon detector for use in a borehole, the muon detector comprising:
a tubular housing which defines a bore that is elongated along a longitudinal axis;
a plurality of elongated drift tubes disposed in the bore of the housing to form a bundle of drift tubes, each drift tube elongated in a direction parallel to the longitudinal axis and the bundle of drift tubes being arranged to be discretely circularly symmetric about the longitudinal axis, each drift tube comprises a centrally located anode wire disposed on a longitudinal axis of the drift tube and a bore-defining cathode surface; and
data-acquisition electronics connected to receive electronic signals from each of the plurality of drift tubes and configured to determine trajectories of muons traversing the muon detector based on at least one of the signals received from the drift tubes.