GEANT4 simulation of implantation profiles for positrons injected in solids from radioactive sources 22Na and 68Ge/68Ga

• Autorzy: Horodek P. , Dryzek J.
• Języki publikacji: EN

Abstrakty

EN

We calculated theoretically the mass absorption coefficients for positrons emitted from the commonly used sources 22Na and 68Ge/68Ga in numerous materials. For this purpose, we used the tool kit GEANT4 which allows to generate the implantation profile. An excellent agreement between the experimental profile and the calculated one was achieved. The calculated values of the mass absorption coefficients coincide well with the experimental values determined by the DSIP method.

Słowa kluczowe

EN

positron annihilation; implantation profile; absorption coefficient; GEANT4 tool kit

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 1
• Strony: 17--19
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Horodek P.

autor

Dryzek J.

• The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, 152 Radzikowskiego Str., 31-342 Kraków, Poland,

Bibliografia

• 1. Apostolakis J, Giani JS, Maire M, Nieminen P, Pia MG, Urban L (1999) Geant4 low energy electromagnetic models for electrons and photons. CERN--OPEN-99-034:1-11
• 2. Dryzek J (2005) Defect depth scanning over the positron implantation profile in aluminium. Appl Phys A 81:1099–1104
• 3. Dryzek J, Singleton D (2006) Implantation profile and linear absorption coefficients for positrons injected in solids from radioactive sources 22Na and 68Ge/68Ga. Nucl Instrum Methods B 252:197–204
• 4. Gleason GI, Taylor ID, Tabern DL (1951) Absolute beta counting at defined geometries. Nucleonics 8:12–21
• 5. Strzałkowski A (1979) Introduction to physics of atomic nucleus. PWN, Warszawa (in Polish)94