SEARCHING FOR RESERVE FOR EXPANSION OF THE POSSIBILITIES TWO-ENERGY RADIOGRAPHY
Theoretical analysis and experimental studies show that the two-energy detection method not only allows one to detect organics on the background of metal, but also substantially increases (by 3-5 times) the detection ability of the system as a whole, especially if parameters of the S-PD pair are optimized, in particular, when ZnSe(Te) is used in the low-energy circuit. A possibility to distinguish, in principle, between substances with insignificant differences in atomic number has been theoretically proven – by transition to multi-energy radiography. 3Dimaging has been realized using S-PD detector arrays. Results of experimental studies of detector arrays S-PD used for X-ray digital radiography have shown that there exist further possibilities to increase spatial resolution of this system up to 2-3 line pairs per mm.
Determining chemical compositions by the method of multi-energy radiography
A theoretical model of multi-energy radiography is proposed and two approaches—“synthesis” and “analysis”—to studying the structure of objects by this method are considered. It is theoretically proved that the atomic numbers of elements and the other parameters of chemical composition of a sample can be restored from the multichannel absorption data. The multi-energy radiography approach and possible generalizations open wide prospects for both basic experimental investigations and nondestructive testing applications.
Reforming the Russian legal system
Preface 1. Pre-revolutionary Russian law 2. The Bolshevik experience 3. The history of legal reform 4. Forging a new constitution 5. Citizens and the state: the debate over the Procuracy 6. In search of a just system: the courts and judicial reform 7. Law and the transition to a market economy 8. Legal reform in the republics 9. Legal reform and the transition to democracy in Russia Appendix Notes Index.