کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1883557 | 1533528 | 2014 | 6 صفحه PDF | دانلود رایگان |
• Experimental stopping data has been obtained by using Heavy Ions Elastic Recoil Detection Analysis technique with Time of Flight spectrometer.
• A new semi-empirical stopping formula based on LSS theory has been proposed for 28Si, 27Al and 24 Mg ions in Formvar foil.
• This expression well fit the experimental stopping data at low energy in LSS domain.
We have determined continuous stopping power of heavy ions in thin Formvar foil for 28Si, 27Al and 24Mg ions over an energy range of (0.1–0.5) MeV/nucleon. Heavy Ions Elastic Recoil Detection Analysis (HI-ERDA) technique coupled with time of flight (ToF) spectrometer has been used to measure energy loss of charged particles in this thin absorber. Lindhard, Scharff and Schiott (LSS) theory compared with the corresponding determined stopping values in Formvar, shows significantly large deviations. However, a novel semi empirical expression has been proposed here and tested for better stopping power calculations at low velocity in the ion energy domain of LSS theory for 28Si, 27Al and 24Mg ions crossing thin Formvar foil. The results were compared to the obtained experimental stopping power data, predictions of LSS theory and also to those generated by SRIM-2010 computer code. The obtained results exhibit good agreement with experimental data.
Journal: Radiation Physics and Chemistry - Volume 96, March 2014, Pages 205–210