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On the sensitivity of terahertz gyrotron based systems for remote detection of concealed radioactive materials
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10.1063/1.4730959
/content/aip/journal/jap/111/12/10.1063/1.4730959
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4730959
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The rates of electron impact ionization (1), electron dissociative attachment to the molecular oxygen (2), and their difference (3) yielding the effective ionization frequency as functions of the normalized power density (reproduced from G. S. Nusinovich, G. M. Milikh, and B. Levush, J. Appl. Phys. 80, 4189 (1996) Copyright © 1996 American Institute of Physics.)

Image of FIG. 2.
FIG. 2.

Detectable level of the ionization enhancement factor Eq. (5) as the function of the THz pulse duration for values of  = 1.5, 2.0, and 3.0.

Image of FIG. 3.
FIG. 3.

The ratio of the detectable ionization level in the case of using pulse compressors to that in the original case as the function of pulse compression ratio for two values of the PC efficiency: 50% and 100%.

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/content/aip/journal/jap/111/12/10.1063/1.4730959
2012-06-26
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the sensitivity of terahertz gyrotron based systems for remote detection of concealed radioactive materials
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/12/10.1063/1.4730959
10.1063/1.4730959
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