SPIN-TAGGED ELECTRON HYDROGEN SCATTERING - NEW MEASUREMENTS OF IONIZATION ASYMMETRIES FROM THRESHOLD TO 500 EV

被引：40

作者：

CROWE, DM

GUO, XQ

LUBELL, MS

SLEVIN, J

EMINYAN, M

机构：

[1] UNIV PARIS 07,PHYS ATOM LAB,F-75251 PARIS,FRANCE

[2] ST PATRICKS COLL,DEPT EXPTL PHYS,MAYNOOTH,KILDARE,IRELAND

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1990年 / 23卷 / 13期

关键词：

D O I：

10.1088/0953-4075/23/13/010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using beams of polarised electrons and polarised hydrogen atoms the authors measured the spin antiparallel-parallel ionisation asymmetry from threshold to 500 eV. Their measurements are generally more precise than those of earlier studies and, more significantly, are characterised by an energy spread that is at least an order of magnitude smaller than that of the earlier work. They compare their results with several theoretical models as well as with the results from similar experiments using polarised alkali atoms.

引用

收藏

页码：L325 / L331

页数：7

相关论文

共 18 条

[1] MEASUREMENT OF SPIN ASYMMETRIES IN THE ELECTRON-IMPACT IONIZATION OF ALKALI ATOMS [J].

BAUM, G ;

MOEDE, M ;

RAITH, W ;

SCHRODER, W .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (03) :531-538

[2] COUPLED-CHANNEL OPTICAL CALCULATION OF ELECTRON-HYDROGEN SCATTERING - THE DISTORTED-WAVE OPTICAL-POTENTIAL [J].

BRAY, I ;

MADISON, DH ;

MCCARTHY, IE .

PHYSICAL REVIEW A, 1990, 41 (11) :5916-5928

[3]

CHAN N, 1988, Z PHYS D, V10, P893

[4]

CROWE DM, 1990, UNPUB PHYS REV LETT

[5] EXPERIMENTAL-STUDY OF SPIN-EXCHANGE EFFECTS IN ELASTIC AND IONIZING COLLISIONS OF POLARIZED ELECTRONS WITH POLARIZED HYDROGEN-ATOMS [J].

FLETCHER, GD ;

ALGUARD, MJ ;

GAY, TJ ;

HUGHES, VW ;

WAINWRIGHT, PF ;

LUBELL, MS ;

RAITH, W .

PHYSICAL REVIEW A, 1985, 31 (05) :2854-2884

[6] IONIZATION OF ATOMIC-HYDROGEN BY AN INCIDENT ELECTRON IN A PSEUDO-STATE APPROXIMATION [J].

GALLAHER, DF .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1974, 7 (03) :362-370

[7] ELECTRON IMPACT IONIZATION OF ATOMIC HYDROGEN [J].

GELTMAN, S ;

RUDGE, MRH ;

SEATON, MJ .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1963, 81 (520) :375-&

[8] CALCULATION OF TOTAL CROSS-SECTIONS FOR IONIZATION OF ATOMIC-HYDROGEN BY ELECTRON-IMPACT USING GLAUBER APPROXIMATION [J].

GOLDEN, JE ;

MCGUIRE, JH .

PHYSICAL REVIEW LETTERS, 1974, 32 (22) :1218-1221

[9] FURTHER OBSERVATIONS ON THE OPERATION OF A GAAS POLARIZED ELECTRON SOURCE [J].

GUO, XQ ;

CROWE, DM ;

LUBELL, MS ;

TANG, FC ;

VASILAKIS, A ;

EMINYAN, M ;

SLEVIN, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1990, 61 (07) :1858-1862

[10]

LUBELL MS, 1990, UNPUB Z PHYS D