Investigation of heavy ion tracks in LiF crystals by dislocation mobility method

被引：3

作者：

Manika, I. ^{[1
]}

Maniks, J. ^{[1
]}

Schwartz, K. ^{[2
]}

机构：

[1] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia

[2] GSI Darmstadt, D-64219 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2008年 / 266卷 / 12-13期

关键词：

LiF; ion tracks; track etching; dislocation mobility;

D O I：

10.1016/j.nimb.2008.03.108

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The track damage created in LiF by swift heavy ions was studied using methods of dislocation mobility and track etching. The crystals were irradiated with Bi and Pb ions of a specific energy of 11 MeV/u at fluences between 10(7) and 10(10) cm(-2). The measurements on cross-sections cleaved parallel to the irradiated surface showed continuity of the track etching for the depth up to 70% of the ion range. In deeper layers, numerous etch pits had a flat-bottomed shape indicating the discontinuities of the track structure. At this stage, a decrease of the ion-induced effect in dislocation mobility was observed. The observed reduction of the efficiency of ion tracks as obstacles for dislocations could be ascribed to the change in the track structure at the final part of ion path. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：2741 / 2744

页数：4

共 12 条

[1] DISLOCATION ETCH PIT FORMATION IN LITHIUM FLUORIDE [J].

GILMAN, JJ ;

JOHNSTON, WG ;

SEARS, GW .

JOURNAL OF APPLIED PHYSICS, 1958, 29 (05) :747-754

[2] Modeling of primary defect aggregation in tracks of swift heavy ions in LiF [J].

Kotomin, EA ;

Kashcheyevs, V ;

Kuzovkov, VN ;

Schwartz, K ;

Trautmann, C .

PHYSICAL REVIEW B, 2001, 64 (14) :1441081-1441087

[3] Hardening and long-range stress formation in lithium fluoride induced by energetic ions [J].

Manika, I ;

Maniks, J ;

Schwartz, K ;

Toulemonde, M ;

Trautmann, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 209 :93-97

[4] Hardening and formation of dislocation structures in LiF crystals irradiated with MeV-GeV ions [J].

Manika, I ;

Maniks, J ;

Schwartz, K ;

Trautmann, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 196 (3-4) :299-307

[5] SWIFT HEAVY-IONS IN MAGNETIC INSULATORS - A DAMAGE-CROSS-SECTION VELOCITY EFFECT [J].

MEFTAH, A ;

BRISARD, F ;

COSTANTINI, JM ;

HAGEALI, M ;

STOQUERT, JP ;

STUDER, F ;

TOULEMONDE, M .

PHYSICAL REVIEW B, 1993, 48 (02) :920-925

[6]

Orowan E., 1954, DISLOCATION METALS

[7] Damage and track morphology in LiF crystals irradiated GeV ions [J].

Schwartz, K ;

Trautmann, C ;

Steckenreiter, T ;

Geiss, O ;

Kramer, M .

PHYSICAL REVIEW B, 1998, 58 (17) :11232-11240

[8]

SHASKOLSKAYA MP, 1984, CRYSTALLOGRAPHIYA

[9] Chemical etching of ion tracks in LiF crystals [J].

Trautmann, C ;

Schwartz, K ;

Geiss, O .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (07) :3560-3564

[10] Damage structure in the ionic crystal LiF irradiated with swift heavy ions [J].

Trautmann, C ;

Toulemonde, M ;

Schwartz, K ;

Costantini, JM ;

Müller, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2000, 164 (164) :365-376

← 1 2 →