Comparison of the calculated and measured stopping powers of low-energy electrons in different metals

Ünak, Turan; Ongun, Binnur; Ünak, Perıhan; Kumru, Mehmet N.

doi:10.1016/0969-8043(95)00091-7

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…For this, use has been made of a QBASIC program as previously carried out for by this group for other Auger emitters, alpha-emitting and beta-emitting radionuclides, including 125 I,201 Tl,204 Tl,51 Cr,211 At. Concordant results have been obtained with the literature Unak, 1988, 1995b;Unak et al, 1995aUnak et al, , 1997Unak and Selvi, 1995;Unak 1997Unak , 2003.…”

Section: Introductionsupporting

confidence: 92%

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Absorbed dose estimates at the cellular level for 186Re and 188Re

Ünak

Çetinkaya

Unak

2005

Radiation Physics and Chemistry

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Section: Introductionsupporting

confidence: 92%

“…This is acceptable in the case of highenergy electrons but for low-energy electrons it gives negative results. To take account of this we have added an empiric term to the equation given below (Unak et al, 1995a).…”

Section: Calculational Methodsmentioning

confidence: 99%

Absorbed dose estimates at the cellular level for 186Re and 188Re

Ünak

Çetinkaya

Unak

2005

Radiation Physics and Chemistry

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“…And this is can be revealed by analytical expressions involving the use of these energy loss. a lot of works has been conducted now a days [5][6][7][8], the total stopping power in nuclear physics has a lot of application like in nuclear spectroscopy, surface layer analysis and semiconductor detectors [ 9,10]. The collision losses of electrons and positron are depends on the natures and properties of the materials.…”

Section: Total Stopping Powermentioning

confidence: 99%

Study Stopping Power Collision in one of Nuclear Element

Hassan

2018

MJS

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The retarding force of the charged particles when interacts with matter causing loss of particle energy, this physical phenomenon in nuclear physics called stopping power. it has a lot of important applications such as in nuclear medicine and privation effects of radiations. The charge particles are alpha and beta particles. in this paper we studies the stopping power, collision and the stopping power of radioactivity of nuclear elements and to find the relationship between stopping power collision and stopping power of radioactivity, with arrange of CSDA range for the low energy electrons data of element F. the CSDA range he CSDA range it is an average distant length of the moving charge particles when it is path slows to stop. By using approximation of CSDA range we can calculate the rate of the loss in the energy at any point along the path of the travel by assuming these energies loss at points of the track are equal to whole stopping power loss. The CSDA range can be found by reciprocal integration of the total stopping power. from the Figures (3),(4),(5) and(6)we can get good results

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Space distribution and energy straggling of charged particles via Fokker-Planck equation

1996

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The Fokker-Planck equation describing a beam of charged particles entering a homogeneous medium is solved here for a stationary case. Interactions are taken into account through Coulomb cross-section. Starting from the charged-particle distribution as a function of velocity and penetration depth, some important kinetic quantities are calculated, like mean velocity, range and the loss of energy per unit space. In such quantities the energy straggling is taken into account. This phenomenon is not considered in the continuous slowing-down approximation that is commonly used to obtain the range and the stopping power. Finally the well-known Bohr or Bethe formula is found as a first-order approximation of the Fokker-Planck equation.PACS 51.10 -Kinetic and transport theory. -IntroductionIn this paper we consider the slowing down and diffusion of a beam of charged particles in a homogeneous medium. In the frame of the Fokker-Planck equation we will find an analytical expression of the spectrum in energy and space. We will then be able to calculate some important parameters such as the range and the loss of energy per unit space (which will be referred to as Space-Dependent Stopping Power or SDSP to distinguish it from the usual definition of stopping power found in the literature). It is worthwhile to underline that these parameters are calculated here taking into account also the energy straggling effect described by the diffusion-in-velocity term (a second-order term) in the Fokker-Planck equation. Actually the energy loss process of a monoenergetic particles beam has a statistical nature. Thus, after the particles have passed through a medium, the energy distribution does not remain a delta function as in the continuous slowing-down (*) The authors of this paper have agreed to not receive the proofs for correction.

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Comparison of the calculated and measured stopping powers of low-energy electrons in different metals

Cited by 5 publications

References 10 publications

Absorbed dose estimates at the cellular level for 186Re and 188Re

Absorbed dose estimates at the cellular level for 186Re and 188Re

Study Stopping Power Collision in one of Nuclear Element

Space distribution and energy straggling of charged particles via Fokker-Planck equation

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