Dose rate effects in ion beam luminescence

被引：7

作者：

Brooks, RJ ^{[1
]}

Ramachandran, V ^{[1
]}

Hole, DE ^{[1
]}

Townsend, PD ^{[1
]}

机构：

[1] Univ Sussex, Sch Informat Technol & Engn, Brighton BN1 9QH, E Sussex, England

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2001年 / 155卷 / 1-4期

基金：

英国工程与自然科学研究理事会;

关键词：

luminescence; ion beam implantation; dose rate effects;

D O I：

10.1080/10420150108214111

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Dose rate dependence of ion beam stimulated luminescence has been measured from sapphire by contrasting ionisation excitation rates generated by ions of H+ and H-2(+). Dose rates, unobtainable by changing current density, ensue as the molecules dissociate to give excitation tracks that are spatially and temporally overlapping. Energy and current selection allows equal power deposition and ion range in both cases. The new results do not support the earlier cathodoluminescence claims of a strong current dose rate effect, although some minor features are apparent.

引用

页码：177 / 181

页数：5

共 6 条

[1] ION-BEAM EXCITED LUMINESCENCE OF SAPPHIRE [J].

ALGHAMDI, A ;

TOWNSEND, PD .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 46 (1-4) :133-136

[2]

ALGHAMDI A, 1989, THESIS

[3] Luminescence of sapphire and ruby induced by He and Ar ion irradiation [J].

Aoki, Y ;

My, NT ;

Yamamoto, S ;

Naramoto, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1996, 114 (3-4) :276-280

[4] Electronic spectroscopy (AES, EELS) and cathodoluminescence (CL) for alpha-Al2O3 characterization [J].

Ghamnia, M ;

Jardin, C ;

Martinez, L ;

Bouslama, M ;

Durupt, P .

VACUUM, 1997, 48 (02) :129-134

[5] The luminescence of sapphire subjected to the irradiation of energetic hydrogen and helium ions [J].

Jardin, C ;

Canut, B ;

Ramos, SMM .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (08) :2066-2070

[6] PHOTOCONDUCTIVITY AND CHARGE TRAPPING IN ALPHA-AL2O3 [J].

JEFFRIES, BJ ;

BREWER, JD ;

SUMMERS, GP .

PHYSICAL REVIEW B, 1981, 24 (10) :6074-6082

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