Initiation of Tetranitropentaerythrit by Millisecond Laser Pulses

The method is suggested that allows the thermal mechanism of laser initiation to be selected against the background of a more efficient photochemical mechanism of initiation. The method is based on different dependences of the efficiency of these mechanisms on the initiating radiation intensity and...

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Bibliographic Details
Published in:Russian physics journal 2014-04, Vol.56 (12), p.1357-1362
Main Authors: Aluker, É. D., Zverev, A. S., Krechetov, A. G., Mitrofanov, A. Yu, Terent’eva, A. O., Tupitsyn, A. V., Sakharchuk, Yu. P.
Format: Article
Language:English
Subjects:
Condensed Matter Physics
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
Nuclear Physics
Nuclear radiation
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Theoretical
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Summary:The method is suggested that allows the thermal mechanism of laser initiation to be selected against the background of a more efficient photochemical mechanism of initiation. The method is based on different dependences of the efficiency of these mechanisms on the initiating radiation intensity and duration. The method is experimentally tested. It is demonstrated that the threshold of thermochemical initiation of pure tetranitropentaerythrit for illumination of the order of 10 4 W/cm 2 exceeds 75 J/cm 2 , whereas the threshold of thermochemical initiation of tetranitropentaerythrit with light-absorbing inclusions (0.1 weight % of gas soot) reduces to 14 J/cm 2 .
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-014-0186-x