1. WO2026174393 - BACKGROUND RADIATION SUPPRESSION IN MUON DETECTOR

Publication Number WO/2026/174393

Publication Date 27.08.2026

International Application No. PCT/CA2026/050264

International Filing Date 20.02.2026

IPC

G01T 1/17 2006.1

G	PHYSICS
01	MEASURING; TESTING
T	MEASUREMENT OF NUCLEAR OR X-RADIATION
1	Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16	Measuring radiation intensity
17	Circuit arrangements not adapted to a particular type of detector

G01T 1/38 2006.1

G	PHYSICS
01	MEASURING; TESTING
T	MEASUREMENT OF NUCLEAR OR X-RADIATION
1	Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
36	Measuring spectral distribution of X-rays or of nuclear radiation
38	Particle discrimination and measurement of relative mass, e.g. by measurement of loss of energy with distance

G01P 3/04 2006.1

G	PHYSICS
01	MEASURING; TESTING
P	MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT
3	Measuring linear or angular speed; Measuring differences of linear or angular speeds
02	Devices characterised by the use of mechanical means
04	by comparing two speeds

G01V 5/04 2006.1

G	PHYSICS
01	MEASURING; TESTING
V	GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
5	Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
04	specially adapted for well-logging

G01T 1/17 2006.1

G	PHYSICS
01	MEASURING; TESTING
T	MEASUREMENT OF NUCLEAR OR X-RADIATION
1	Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16	Measuring radiation intensity
17	Circuit arrangements not adapted to a particular type of detector

G01T 1/38 2006.1

G	PHYSICS
01	MEASURING; TESTING
T	MEASUREMENT OF NUCLEAR OR X-RADIATION
1	Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
36	Measuring spectral distribution of X-rays or of nuclear radiation
38	Particle discrimination and measurement of relative mass, e.g. by measurement of loss of energy with distance

G01P 3/04 2006.1

G	PHYSICS
01	MEASURING; TESTING
P	MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT
3	Measuring linear or angular speed; Measuring differences of linear or angular speeds
02	Devices characterised by the use of mechanical means
04	by comparing two speeds

G01V 5/04 2006.1

G	PHYSICS
01	MEASURING; TESTING
V	GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
5	Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
04	specially adapted for well-logging

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Applicants

• IDEON TECHNOLOGIES INC. [CA]/[CA]

Inventors

• SCHOUTEN, Douglas William
• VAN NIEUWKOOP, Jacobus

Agents

• RATTRAY, Todd A.
• KWOK, Christina S.W.
• ASH, Craig A.
• MCGRUDER, David J.
• TAKAGAWA, David H.
• SUE, Hilton W.C.
• GARNER, Nicholas
• SMITH, Paul R.
• JONES, Roni M.
• BAILEY, Thomas W.
• LESLIE, Garth W.
• WANG, Kevin Z.
• CHAN, Leslie
• MANNING, Gavin N.
• KONDOR, George F.
• CHAN, Lawrence K.

Priority Data

63/761,143		20.02.2025		US
63/796,745		29.04.2025		US

Publication Language English (en)

Filing Language English (en)

Designated States

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AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MU, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

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Title

(EN) BACKGROUND RADIATION SUPPRESSION IN MUON DETECTOR

(FR) SUPPRESSION DU RAYONNEMENT DE FOND DANS UN DÉTECTEUR DE MUONS

Abstract

(EN) A method filters noise from measured data obtained by a muon detector. The method comprises: obtaining a measured distribution of path-length-adjusted energy data for a plurality of detection events associated with the measured data: providing a first baseline distribution of deposition energy per unit path length obtained from a first baseline environment with a high concentration of muon particles relative to beta particles; providing a second baseline distribution of deposition energy per path length obtained from a second baseline environment with a high concentration of beta particles relative to muon particles; fitting the measured distribution to the first and second baseline distributions wherein fitting the measured distribution to the first and second baseline distributions comprises determining a plurality of distribution fitting parameters; and filtering the measured data obtained by the detector based at least on the determined distribution fitting parameters to thereby obtain noise-filtered measured data.

(FR) Un procédé filtre le bruit à partir de données mesurées obtenues par un détecteur de muons. Le procédé consiste à : obtenir une distribution mesurée de données d'énergie ajustées à la longueur de trajet pour une pluralité d'événements de détection associés aux données mesurées : fournir une première distribution de référence d'énergie de dépôt par longueur de trajet unitaire obtenue à partir d'un premier environnement de référence avec une concentration élevée de particules de muons par rapport à des particules bêta ; fournir une seconde distribution de référence d'énergie de dépôt par longueur de trajet obtenue à partir d'un second environnement de référence avec une concentration élevée de particules bêta par rapport à des particules de muons ; ajuster la distribution mesurée aux première et seconde distributions de référence, l'ajustement de la distribution mesurée aux première et seconde distributions de référence comprenant la détermination d'une pluralité de paramètres d'ajustement de distribution ; et filtrer les données mesurées obtenues par le détecteur sur la base au moins des paramètres d'ajustement de distribution déterminés pour obtenir ainsi des données mesurées débruitées.

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