Accession Number:

ADA046729

Title:

An NQR Study of TNT Characteristics.

Descriptive Note:

Final technical rept. 22 Mar 76-31 Aug 77,

Corporate Author:

BLOCK ENGINEERING INC CAMBRIDGE MASS

Report Date:

1977-09-01

Pagination or Media Count:

68.0

Abstract:

The results of this research have established that the nuclear quadrupole resonance NQR spectrometric technique is ideally suited for the characterization of explosives such as TNT. NQR data yields information on chemical structure, crystalline states and morphology. For the explosive TNT it has been shown that a. TNT exists in two morphological states, b. TNT undergoes a phase transition at approximately 200K. In addition a new mechanism was discovered for obtaining NQR signals at high data rates thus enhancing system efficiency by a factor of up to 100. Finally, initial research was performed using soft ferrite cores in place of the standard sample coils in an effort to reduce the amount of sample required for an NQR measurement. Author

Subject Categories:

  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE