Single electron loss of Kr+ ions in gaseous media

被引:7
作者
Martínez, H
Amaya-Tapia, A
Hernández, JM
机构
[1] Univ Nacl Autonoma Mexico, Ctr Ciencias Fis, Cuernavaca 62251, Morelos, Mexico
[2] UAEM, Fac Ciencias, Toluca, Mexico
关键词
D O I
10.1088/0953-4075/33/10/308
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Differential and total cross sections for single electron loss were measured for Kr+ ions on gaseous media in the energy range of 1.0 to 5.0 keV. The single electron loss cross sections for all the targets studied are found to be in the order of magnitude between 10(-22) and 10(-20) cm(2), and show a rapid monotonically increasing behaviour as a function of the incident energy; no remarkable differences in the energy dependence of sigma(12) were found for any atom studied. The single electron loss cross sections show a weaker Z(t) dependence in the large Z(t) region than that given by the Bohr formula. A striking feature of the results is the experimental evidence of saturation in the single electron loss cross section as the nuclear charge of the target increases.
引用
收藏
页码:1935 / 1942
页数:8
相关论文
共 27 条
[1]   EXTENSION OF ELECTRON-PROMOTION MODEL TO ASYMMETRIC ATOMIC COLLISION [J].
BARAT, M ;
LICHTEN, W .
PHYSICAL REVIEW A, 1972, 6 (01) :211-&
[2]   DIFFERENTIAL MEASUREMENTS ON ION-ATOM COLLISIONS IN ENERGY RANGE 500 EV-3000 EV .3. NE+ ON NE, AR+ ON AR AND KR+ ON KR COLLISIONS [J].
BARAT, M ;
BAUDON, J ;
ABIGNOLI, M ;
HOUVER, JC .
JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1970, 3 (02) :230-&
[3]  
Bohr N. K. Dan, 1948, VIDENSK SELSK MAT FY, V18
[4]   COLLISIONS BETWEEN RARE-GAS ATOMS AT LOW-KEV ENERGIES .2. ASYMMETRIC COLLISION SYSTEMS - HE-NE, -AR, -KR, -XE [J].
BRENOT, JC ;
DHUICQ, D ;
GAUYACQ, JP ;
POMMIER, J ;
SIDIS, V ;
BARAT, M ;
POLLACK, E .
PHYSICAL REVIEW A, 1975, 11 (06) :1933-1945
[5]   COLLISIONS BETWEEN RARE-GAS ATOMS AT LOW KEV ENERGIES .1. SYMMETRIC SYSTEMS [J].
BRENOT, JC ;
DHUICQ, D ;
GAUYACQ, JP ;
POMMIER, J ;
SIDIS, V ;
BARAT, M ;
POLLACK, E .
PHYSICAL REVIEW A, 1975, 11 (04) :1245-1266
[6]   Atomic physics [J].
Datz, S ;
Drake, GWF ;
Gallagher, TF ;
Kleinpoppen, H ;
Putlitz, GZ .
REVIEWS OF MODERN PHYSICS, 1999, 71 (02) :S223-S241
[7]   THEORY OF ELECTRONIC-TRANSITIONS IN SLOW ATOMIC-COLLISIONS [J].
DELOS, JB .
REVIEWS OF MODERN PHYSICS, 1981, 53 (02) :287-357
[8]  
DMITRIEV IS, 1962, ZH EKSP TEOR FIZ, V15, P11
[9]   ION SPECTRA FROM SLOW COLLISIONS OF HE+ WITH HELIUM, NE, AR, AND OF NE+ WITH NE [J].
GERBER, G ;
NIEHAUS, A ;
STEFFAN, B .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1973, 6 (09) :1836-1848
[10]   Chemical physics: Molecular clouds, clusters, and corrals [J].
Herschbach, D .
REVIEWS OF MODERN PHYSICS, 1999, 71 (02) :S411-S418