G01N24/084

Luggage Detector
20220107442 · 2022-04-07 ·

The present invention relates to a system for detecting illicit objects contained in a piece of luggage, characterized in that it comprises a carriage defining a housing (60) for receiving a piece of luggage and examination means (100, 200, 300) placed at the inlet of the housing (60) such that the introduction of the piece of luggage into the housing (60) induces a relative displacement between the piece of luggage and at least one of the examination means (200) and thus an automatic scanning of the piece of luggage by the examination means (200).

Nuclear quadrupole resonance detection system and antenna

The technology disclosed in this invention belongs to both the field of Nuclear Quadrupole Resonance (NQR) and nuclear geomagnetic resonance application. Technically, a nuclear quadrupole resonance detection system and its antenna are provided. The antenna includes two coils to make a gradient antenna wherein they simultaneously receive both the signal from the target region and the external radio frequency interference. Structurally, the first coil is positioned as a regular circular coil, while the second coil is annular and evenly distributed around the first coil peripherally. These coils are on the same plane with equal areas but have opposite winding directions. The systems specific to the disclosed antenna are also included. The configuration of the invented antenna can effectively increase the capability of suppressing environmental electromagnetic radio frequency interference, thereby enhancing the detection of the NQR or geomagnetic resonance signals. Consequently, the signal-to-noise ratio of the system is improved.

Whole-body transmission x-ray scanner and methods for whole-body scanning
11105950 · 2021-08-31 ·

A whole-body transmission x-ray scanner includes a collimated x-ray source, a linear x-ray camera configured to detect x-rays, a counterweight, and a positioner that aligns the source and ray camera and moves the source and camera synchronously to scan and acquire radiographic images of an object located therebetween. The positioner comprises a cable alignment assembly connecting the counterweight directly to the x-ray source and camera to maintain alignment of the source and camera during a scanning mode in which the source and camera move from one end of the object to another end. The positioner comprises a motor, a bi-directional crossover slide track bearing assembly connected to the source, and a conveyor operatively connected to the motor and to the slide track bearing assembly to move the slide track bearing assembly in a loop that correspondingly translates the source and camera along a single linear axis.

Mobile detector and method for detecting potentially explosive substances, explosives and drugs by nuclear quadrupole resonance (NQR)

System for detecting explosive substances and drugs by nuclear quadrupole resonance having a central processing unit (UC) which connects to a storage, data processing, and interface unit (USPI) provided with a user console (1C) and a with a head (CS1) for scanning explosives/drugs around the legs and a head (CS2) for scanning suspicious objects on the ground or that cannot be moved having a radio processing system (SPR) which includes a programmable RF signal generator (DDS) which transmits RF pulses to a power amplifier (AP) coupled to an interface for gain control and for the acquisition of the reflected signal level (IAP), a series-parallel tuning circuit (CA) consisting of a flat spiral ferrite-core coil (L) and two variable capacitors (CV1, CV2) driven by two stepper motors (M1, M2) which are controlled by an automatic tuning matching module (WIAA) through control interfaces.

AQUAFABA COMPOSITION AND METHODS OF MANUFACTURE
20210059284 · 2021-03-04 ·

There is disclosed a method of producing a standardized whey composition, comprising steeping seed an identity preserved pulse cultivar selected from the genera for a predetermined time at a predetermined temperature. Optionally this seed is subjected to processed by milling and fractionation or heating and fractionation to produce a series of improved food ingredients that uniformly stabilize foams and emulsions.

TUNING NETWORKS FOR SINGLE LOOP RESONATORS
20210041515 · 2021-02-11 ·

Embodiments of an SLR antenna having differential signal contacts and a tuning circuit configured to tune the at least one resonance frequency of the SLR antenna to a predetermined operational frequency are disclosed. Embodiments of a tuning circuit include a balun transformer connected between the differential signal contacts of the SLR antenna and a single-ended input/output contact, a first variable capacitance connected between the balun transformer and the single-ended input/output contact, and a variable reactive component connected between the differential signal contacts of the SLR antenna and between differential contacts of the balun transformer.

IN SITU, REAL-TIME IN-LINE DETECTION OF FILLING ERRORS IN PHARMACEUTICAL PRODUCT MANUFACTURING USING WATER PROTON NMR
20210010962 · 2021-01-14 ·

A method of using the transverse relaxation rate (R.sub.2) of solvent NMR signal to detect filling errors of an alum-containing product in real-time in-line during manufacturing, for example during a fill-finish unit operation. This technique can be used for quality control in vaccine manufacturing to ensure the delivery of the correct concentration of alum-containing product to the product container such as a vial or pre-filled syringe.

METHODS AND SYSTEMS FOR LOW TO ULTRA-LOW MAGNETIC FIELD NUCLEAR MAGNETIC RESONANCE FOR DETECTING CHEMICAL NERVE AGENTS

A nuclear magnetic resonance (NMR) system is configured to detect chemical threat material. The system comprises a magnet configured to generate a magnetic field of about 300 millitesla or less; and a probe configured to detect nuclear relaxation of at least two nuclei selected from the group consisting of .sup.1H, .sup.19F, .sup.31P and .sup.14N, and detect the spin density of nuclei selected from the group consisting of .sup.1H, .sup.19F, .sup.31P and .sup.14N, following excitation.

NUCLEAR QUADRUPOLE RESONANCE DETECTION SYSTEM AND ANTENNA
20200371179 · 2020-11-26 ·

The technology disclosed in this invention belongs to both the field of Nuclear Quadrupole Resonance (NQR) and nuclear geomagnetic resonance application. Technically, a nuclear quadrupole resonance detection system and its antenna are provided. The antenna includes two coils to make a gradient antenna wherein they simultaneously receive both the signal from the target region and the external radio frequency interference. Structurally, the first coil is positioned as a regular circular coil, while the second coil is annular and evenly distributed around the first coil peripherally. These coils are on the same plane with equal areas but have opposite winding directions. The systems specific to the disclosed antenna are also included. The configuration of the invented antenna can effectively increase the capability of suppressing environmental electromagnetic radio frequency interference, thereby enhancing the detection of the NQR or geomagnetic resonance signals. Consequently, the signal-to-noise ratio of the system is improved.

METHODS AND SYSTEMS FOR J-COUPLED NUCLEAR MAGNETIC RESONANCE

A nuclear magnetic resonance (NMR) system is configured to detect combinatorial signatures stemming from homonuclear and heteronuclear J-couplings. The system comprises a pre-polarization system, a detector, and NMR electronics, wherein the detector includes an NMR magnet with a magnetic field of strength between 300 mT and 10 T.