II. Eurasian conference nuclear science and its application : proceedings, 16-19 September, 2002. Almaty, Kazakhstan

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https://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/1682

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Browsing II. Eurasian conference nuclear science and its application : proceedings, 16-19 September, 2002. Almaty, Kazakhstan by All Authors "Baykal, Adnan"

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    Experimental study of heat transfer in a thin vertical rectangular channel
    (National Nuclear Center of the Republic of Kazakhstan / Institute of Nuclear Physics, 2003) Arıkan, H. İbrahim; Baykal, Adnan; Adalıoğlu, Ulvi; Yavuz, Hasbi; TAEK-ÇNAEM
    Free convection cooling processes are often used in nuclear technology as well as in the vertical channel type structures of some systems, in electronic circuit board cooling and many other fields. TR-2 Reactor at Cekmece Nuclear Research and Training Centre (CNRTC) is a pool type research reactor with plate type fuel elements. The narrow vertical cooling channels of this reactor have a width of 2.1 mm. In case of an accident or a loss of cooling event, the heat in these channels are transfered by natural convection. An experimental setup was constructed to simulate the TR-2 cooling channels. Dummy fuel plates were heated by a DC source and temperature measurements were taken by copper-constantan thermocouples situated at different points. Cooling fluid is air. For several different powers and channel gaps the temperatures had been measured. The average Nu and Ra numbers were calculated for the channel and compared with the numerical results.
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    Measurements of ground, first excited-state energy and width of 5He via d-7Li reaction
    (National Nuclear Center of the Republic of Kazakhstan / Institute of Nuclear Physics, 2003) Baykal, Adnan; Tarcan, Gökçe; Reyhancan, İskender Atilla; Erduran, M. Nizamettin; TAEK-ÇNAEM
    The reaction products from d-7Li were studied using a 150 keV deuteron beam from SAMES J-15 accelerator at Çekmece Nuclear Research and Training Centre (ÇNAEM). The target was obtained by evaporating natural LiF (800μg/cm2) onto Aluminium backing (1500μg/cm2). Two silicon surface barrier detectors (SSB) were chosen in order to detect all the alpha-particles produced in the reaction and they were placed on the opposite side respect to the beam. The alpha-alpha coincidence technique was employed and energy signals from SSB#2 detector placed on 83.50 are gated with 6.7 - 8.2 MeV interval of energy signals from SSB#1 placed on 900 . Coincidence spectra obtained were corrected for the energy loss in the target. The coincidence spectra were then unfolded and alpha lines belonging to the ground and first excited states of 5He were then identified.