MEASUREMENTS OF ELECTRON IMPACT IONIZATION CROSS SECTIONS OF MG2+ IONS AND A NOTE ON CLASSICAL SCALING LAW

被引：25

作者：

PEART, B

MARTIN, SO

DOLDER, KT

机构：

来源：

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 11期

关键词：

D O I：

10.1088/0022-3700/2/11/307

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A crossed-beam method has been used to study the reaction Mg2+ +e -> Mg3+ +2e for electron energies which ranged from threshold (78 ev) to 3 kev. The cross section attained a maximum value of 1·38 × 10-17 cm2 at 300 ev. The results are compared with partial cross sections (for single ionization) of neon and Na+, which are the two lower members of the neon sequence. The scaling law for isoelectronic ions, which follows from Thomson's classical theory, is seen to become more accurate with increasing ionic charge for this sequence.

引用

收藏

页码：1176 / &

相关论文

共 14 条

[1] Ionization potentials and probabilities for the formation of multiply charged ions in helium, neon and argon. [J].

Bleakney, W .

PHYSICAL REVIEW, 1930, 36 (08) :1303-1308

[2] A MEASUREMENT OF IONIZATION CROSS-SECTION OF HELIUM IONS BY ELECTRON IMPACT [J].

DOLDER, KT ;

THONEMANN, PC ;

HARRISON, MF .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1961, 264 (1318) :367-+

[3] ABSOLUTE CROSS SECTIONS FOR SINGLE IONIZATION OF ALKALI IONS BY ELECTRON IMPACT .2. NA+ AND K+ RESULTS AND COMPARISONS WITH THEORY [J].

HOOPER, JW ;

LINEBERGER, WC ;

BACON, FM .

PHYSICAL REVIEW, 1966, 141 (01) :165-+

[4] ABSOLUTE CROSS SECTIONS FOR SINGLE IONIZATION OF ALKALI IONS BY ELECTRON IMPACT .I. DESCRIPTION OF APPARATUS AND LI+ RESULTS [J].

LINEBERGER, WC ;

HOOPER, JW ;

MCDANIEL, EW .

PHYSICAL REVIEW, 1966, 141 (01) :151-+

[5]

NEFF SH, 1963, THESIS HARVARD U

[6] IONIZATION OF NEUTRAL ATOMS WITH OUTER 2P AND 3P ELECTRONS BY ELECTRON AND PROTON IMPACT [J].

PEACH, G .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1968, 1 (06) :1088-&

[7] IONIZATION OF LI+ TO LI3+ BY ELECTRON IMPACT [J].

PEART, B ;

DOLDER, T .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1969, 2 (11) :1169-&

[8] MEASUREMENTS OF CROSS SECTIONS FOR IONIZATION OF NA+ TO NA2+ AND K+ TO K2+ BY ELECTRON IMPACT [J].

PEART, B ;

DOLDER, KT .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1968, 1 (02) :240-&

[9] MEASUREMENTS OF CROSS SECTIONS FOR IONIZATION OF LI+ AND BA+ IONS BY ELECTRON IMPACT [J].

PEART, B ;

DOLDER, KT .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1968, 1 (05) :872-&

[10] PARTIAL IONIZATION CROSS SECTIONS OF NOBLE GASES FOR ELECTRONS WITH ENERGY 0.5-16KEV .I. HELIUM AND NEON [J].

SCHRAM, BL ;

BOERBOOM, AJ ;

KISTEMAKER, J .

PHYSICA, 1966, 32 (01) :185-+