Two-frequency composite pulses in NQR

Abstract

The application of multiple-pulse sequences consisting of two-transition composite pulses for remote nuclear quadrupole resonance detection of explosives and narcotics is discussed. The pulse sequence for obtaining these pulses is described and it is shown that these pulses are equivalent to the pulse applied at the third (nonirradiated) transition. The Ioss of the signal intensity in this case is absent.

Aplicability of TNT “super- detection” to multipulse sequences

“…detection of explosives hidden in luggage. Nevertheless, the necessity for a reliable detection has in recent years seen the development of several techniques with enhanced sensitivity for NQR detection of explosives [10][11][12][13][14][15][16][17][18][19][20].…”