Yazarlar

• Cevik, U.(1)
• Karabidak, S. M.(1)
• Karabidak, S.M.(1)
• Kaya, S.(1)
• Çelik, A.(1)
• Çevik, U.(1)

• MakaleYalnız künye2013/r/gumushane/15414
  Decaying source model: Alternative approach to determination of true counting rates at X and gamma ray counting systems

  Karabidak, S.M.; Cevik, U.

  The counting systems consisting of electronic devices are used for detection of radiation due to X or gamma rays. The dead time of the counting system is based on time limitations of these electronic devices. The dead time causes counting losses. Determination of counting rate losses in quantitative and qualitative analysis become a vital step for correction of analysis. Therefore, compensating for counting rate losses is of great importance. These counting rate losses are due to piled up reject time, paralyzable or non-paralyzable system dead time or a combination of these mechanisms. Paralyzable and non-paralyzable models are well-known and frequently used for correction of counting rate losses dependent on the system dead time. However, these two models do not provide enough correction at medium and high counting rates. Therefore, the new models for corrections of counting rate losses are needed. For this reason, both an alternative approach is proposed and a simulation program is coded for counting rate losses in this study. A good agreement is obtained between theoretical model and simulation program.

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• MakaleYalnız künye2011/r/gumushane/15876
  Determination of proper peaking time for Ultra-LEGe detector

  Karabidak, S. M.; Kaya, S.; Çevik, U.; Çelik, A.

  Reducing count losses and pile-up pulse effects in quantitative and qualitative analysis is necessary for accuracy of analysis. Therefore, the proper peaking time for particular detector systems is important. The characteristic X-rays emitted from pure some elements were detected by using an Ultra-LEGe detector connecting a Tennelec TC 244 spectroscopy amplifier at different peaking time modes. Overall pulse widths were determined by an HM 203-7 oscilloscope connecting amplifier. The proper peaking time for Ultra-LEGe is determined as 3.84 mu s. (C) 2011 Elsevier Ltd. All rights reserved.

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