Vol.6, No 1, 2008 pp. 127 - 139
DOI 10.2298/FUPCT0801119R
UDC 539.2
VOLUME CORRECTION FACTOR IN ELECTRON-INDIUM
ATOM SCATTERING EXPERIMENTS
M. S. Rabasović1, S. D. Tošić1,
V. Pejčev1,2, D. Šević1,
D. M. Filipović1,3, B. P. Marinković1
1Laboratory for Atomic Collision Processes,
P. O. Box 68, 11080 Belgrade, Institute of Physics, Serbia
2Faculty of Natural Sciences, Radoja
Domanovića 12, Kragujevac, University of Kragujevac, Serbia
3Faculty of Physics, P.O. Box 368,
11001 Belgrade, University of Belgrade, Serbia
Abstract. In crossed electron beam - Indium atom beam scattering
experiments the measured signal arises from a spatial region (the 'interaction
volume') defined by the overlap of the electron and target atom beam and
the view cone of the detector. The exchange of the interaction volume with
the scattering angle, named a volume correction factor is discussed. The
approach of R. T. Brinkmann and S. Trajmar (J. Phys. E 14, 245-254 (1981))
is adopted for our experimental conditions to determine the volume correction
factor and accordingly to transfer angular distributions of scattered electrons
to relative differential cross sections.
Key words: Volume correction factor
ZAPREMINSKI KOREKCIONI FAKTOR U EKSPERIMENTU
RASEJANJA EELEKTRONA NA ATOMU INDIJUMA
U eksperimentima rasejanja elektrona na atomima indijuma koristili smo
tehniku ukrštenih mlazeva. Mereni signal potiče iz oblasti prostora „interakcione
zapremine" koja je definisana presekom mlaza elektrona, mlaza atoma mete
i vidnog ugla detektora. U ovom radu smo prikazali kako se interakciona
zapremina menja sa uglom rasejanja i ta promena je opisana zapreminskim
korekcionim faktorom. Pristup opisan u radu R. T. Brinkmann-a i S. Trajmar-a
(J. Phys. E 14, 245-254 (1981)) primenili smo na naše eksperimentalne
uslove u cilju određivanja zapreminskog korekcionog faktora, pomoću koga
su ugaone raspodele rasejanih elektrona prevedene u relativne diferencijalne
preseke.
