FIELD: physics.
SUBSTANCE: present invention can be used for search and registration of nuclear quadrupole resonance spectra. Invention implies that substance analysed is irradiated with multipulse sequence, each pulse having phase shift by 180° relative to previous one. NQR signals are accumulated and processed. Multipulse sequence consists of two components, the first one, of duration 0.7T1, including preparatory 90° pulse and following sequence of 180° pulses, and the second component of sequence including pairs of 90° pulses.
EFFECT: reduced detection time and increased sensitivity at analysis of substance by quadrupole resonance method.
1 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD TO DETECT TRI-BAND NUCLEAR QUADRUPOLE RESONANCE | 2011 |
|
RU2495406C2 |
METHOD OF DETECTING AND IDENTIFYING CHEMICAL COMPOUNDS | 2005 |
|
RU2289124C1 |
NUCLEAR QUADRUPOLE RESONANCE BASED METHOD OF DETECTING EXPLOSIVES AND DRUGS | 2004 |
|
RU2249202C1 |
METHOD OF NUCLEAR QUADRUPLE RESONANCE SPECTRUM SEARCH AND REGISTERING | 0 |
|
SU958935A1 |
METHOD OF EXPLOSIBLE SUBSTANCES DETECTION WITH USE OF NUCLEAR QUADRUPOLE RESONANCE | 0 |
|
SU1831680A3 |
METHOD AND DEVICE FOR SCANNING OBJECTS FOR PRESENCE OF SUBSTANCES CONTAINING NUCLEI WITH QUADRUPOLE MOMENT | 2007 |
|
RU2362150C2 |
METHOD OF IDENTIFYING CHEMICAL COMPOUNDS | 0 |
|
SU1303915A1 |
NUCLEAR QUADRUPOLE RESONANCE SYSTEM FOR DETECTION OF MINES AND LUGGAGE INSPECTION | 1998 |
|
RU2165104C2 |
METHOD AND DEVICE FOR SCANNING NON-METAL OBJECTS FOR AVAILABILITY OF SUBSTANCES CONTAINING NUCLEI HAVING QUADRUPOLE MOMENT | 2002 |
|
RU2248560C2 |
METHOD OF DETECTING EXPLOSIVES BASED ON APPLICATION OF NUCLEAR QUADRUPOLE RESONANCE | 0 |
|
SU1824559A1 |
Authors
Dates
2008-09-10—Published
2006-12-15—Filed