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CCD CONTROLLERS FOR THE 6-M TELESCOPE OF RAS WITH IMPROVED ACCURACY OF SIGNAL PROCESSING
MARKELOV S. V.,MURZIN V. A.,IVASHCHENKO N. G.,AFANASIEVA I. V.,BORISENKO A. N. The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
The principles to attain improved accuracy in a new controller for large CCD and mosaics detectors with the application of 16- and 32-bit DSP are presented.
DELAYED HYDRIDE CRACKING IN ZIRCALOY FUEL CLADDING – AN IAEA COORDINATED RESEARCH PROGRAMME
C. COLEMAN,V. GRIGORIEV,V. INOZEMTSEV,V. MARKELOV,M. ROTH,V. MAKAREVICIUS,Y. S. KIM,KANWAR LIAGAT ALI,J.K. CHAKRAVARTTY,R. MIZRAHI,R. LALGUDI 한국원자력학회 2009 Nuclear Engineering and Technology Vol.41 No.2
The rate of delayed hydride cracking (DHC), V, has been measured in cold-worked and stress-relieved Zircaloy-4 fuel cladding using the Pin-Loading Tension technique. At 250 °C the mean value of V from 69 specimens was 3.3(±0.8)x10⁻⁸ m/s while the temperature dependence up to 275 °C was described by Aexp(-Q/RT), where Q is 48.3 kJ/mol. No cracking or cracking at very low rates was observed at higher temperatures. The fracture surface consisted of flat fracture with no striations. The results are compared with previous results on fuel cladding and pressure tubes.
DELAYED HYDRIDE CRACKING IN ZIRCALOY FUEL CLADDING - AN IAEA COORDINATED RESEARCH PROGRAMME
Coleman, C.,Grigoriev, V.,Inozemtsev, V.,Markelov, V.,Roth, M.,Makarevicius, V.,Kim, Y.S.,Ali, Kanwar Liagat,Chakravartty, J.K.,Mizrahi, R.,Lalgudi, R. Korean Nuclear Society 2009 Nuclear Engineering and Technology Vol.41 No.2
The rate of delayed hydride cracking (DHC), V, has been measured in cold-worked and stress-relieved Zircaloy-4 fuel cladding using the Pin-Loading Tension technique. At $250^{\circ}C$ the mean value of V from 69 specimens was $3.3({\pm}0.8)x10^{-8}$ m/s while the temperature dependence up to $275^{\circ}C$ was described by Aexp(-Q/RT), where Q is 48.3 kJ/mol. No cracking or cracking at very low rates was observed at higher temperatures. The fracture surface consisted of flat fracture with no striations. The results are compared with previous results on fuel cladding and pressure tubes.