Effect of anomalous absorption of neutrons undergoing Laue diffraction at Bragg angles close to π/2

被引：11

作者：

Vezhlev, E. O. ^{[1
,2
]}

Voronin, V. V. ^{[1
]}

Kuznetsov, I. A. ^{[1
]}

Seminikhin, S. Yu. ^{[1
]}

Fedorov, V. V. ^{[1
,2
]}

机构：

[1] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

[2] St Petersburg State Polytech Univ, St Petersburg 195251, Russia

来源：

JETP LETTERS | 2012年 / 96卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

PERFECT SINGLE CRYSTALS; CDS CRYSTAL; X-RAYS; MASS; SCATTERING;

D O I：

10.1134/S0021364012130127

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A direct experimental observation of the anomalous absorption of neutrons undergoing Laue diffraction in a highly perfect silicon single crystal of size about 200 mm at Bragg angles close to pi/2 is reported. It is shown that, in the case of diffraction at the (220) plane, the neutron absorption length may be several meters, which is nearly one order of magnitude longer than the mean absorption length for neutrons of the same wavelength. This circumstance makes it possible to study effects accompanying Laue diffraction at Bragg angles of up to 88A degrees and a crystal size of about 200 mm.

引用

页码：1 / 5

页数：5

共 40 条

[1] Effect of anomalous absorption of neutrons undergoing Laue diffraction at Bragg angles close to π/2
E. O. Vezhlev
V. V. Voronin
I. A. Kuznetsov
S. Yu. Seminikhin
V. V. Fedorov
JETP Letters, 2012, 96 : 1 - 5
[2] Neutron laue diffraction in a weakly deformed crystal at the Bragg angles close to π/2
V. V. Fedorov
I. A. Kuznetsov
E. G. Lapin
S. Yu. Semenikhin
V. V. Voronin
JETP Letters, 2007, 85 : 82 - 85
[3] Neutron Laue diffraction in a weakly deformed crystal at the Bragg angles close to π/2
Fedorov, V. V.
Kuznetsov, I. A.
Lapin, E. G.
Semenikhin, S. Yu.
Voronin, V. V.
JETP LETTERS, 2007, 85 (01) : 82 - 85
[4] RESONANCE DAMPING OF NEUTRON ANOMALOUS TRANSMISSION EFFECT AT LAUE DIFFRACTION
IGNATOVICH, VK
MIKHALETS, R
FIZIKA TVERDOGO TELA, 1983, 25 (12): : 3625 - 3629
[5] ANOMALOUS TRANSMISSION OF MOSSBAUER RADIATION IN PURE NUCLEAR LAUE DIFFRACTION .2. WEAK ABSORPTION OFF RESONANCE
VANBURCK, U
SMIRNOV, GV
MOSSBAUER, RL
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (14): : 2567 - 2573
[6] MEASUREMENTS OF TRANSMITTED DIFFRACTION PROFILES ON BRAGG ANGLES AT PI/2
GILES, C
CUSATIS, C
APPLIED PHYSICS LETTERS, 1991, 59 (06) : 641 - 643
[7] X-RAY-DIFFRACTION IN THE BRAGG CASE AT BRAGG ANGLES OF ABOUT PI-2
BRUMMER, O
HOCHE, HR
NIEBER, J
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1979, 53 (02): : 565 - 570
[8] EFFECT OF MICRODEFECTS ON X-RAY ABSORPTION BY SILICON DURING LAUE DIFFRACTION
BUBLIK, VT
LITVINOV, YM
POSTOLOV, VG
OVCHARENKO, VM
TUZLUKOV, AA
INORGANIC MATERIALS, 1985, 21 (09) : 1266 - 1269
[9] Linear effect of doubling of the laser pulse repetition rate in the laue geometry of bragg diffraction in a photonic crystal
V. A. Bushuev
B. I. Mantsyzov
Bulletin of the Russian Academy of Sciences: Physics, 2008, 72 (1) : 30 - 34
[10] Effect of Microdefects on X-Ray Absorption in Silicon during Laue Diffraction.
Bublik, V.T.
Litvinov, Yu.M.
Postolov, V.G.
Ovcharenko, V.M.
Tuzlukov, A.A.
Neorganiceskie materialy, 1985, 21 (09): : 1449 - 1452

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