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A method of NQR testing a sample having at least one NQR property which varies with a given environmental parameter comprises applying excitation to the sample to excite NQR resonance and detecting the NQR response signal. The excitation is such as to excite an NQR response signal which is detectabl...

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Bibliographische Detailangaben
Hauptverfasser:	SMITH,,JOHN ALEC SYDNEY, SHAW,,JULIAN DAVID
Format:	Patent
Sprache:	fin ; swe
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE PHYSICS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A method of NQR testing a sample having at least one NQR property which varies with a given environmental parameter comprises applying excitation to the sample to excite NQR resonance and detecting the NQR response signal. The excitation is such as to excite an NQR response signal which is detectable during the detection step over a predetermined range of the environmental parameter. The invention also relates to a method of, and apparatus for, NQR testing for the presence of selected nuclei (particularly nuclei of integral spin quantum number, such as N) in a sample. It also relates to a method of determining the spatial distribution of temperature within a sample.