The D20 instrument at the ILL: a versatile high-intensity two-axis neutron diffractometer

被引：220

作者：

Hansen, Thomas C. ^{[1
]}

Henry, Paul F. ^{[1
]}

Fischer, Henry E. ^{[1
]}

Torregrossa, Jacques ^{[1
]}

Convert, Pierre ^{[1
]}

机构：

[1] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2008年 / 19卷 / 03期

关键词：

neutron instrumentation; neutron diffraction; powder diffraction; monochromator; position sensitive detector; microstrip detector;

D O I：

10.1088/0957-0233/19/3/034001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

D20 is a medium to high resolution two-axis diffractometer capable of producing a neutron flux of 10(8) s(-1) cm(-2) at the sample position. The 1536 detection cells of its curved linear position sensitive detector (PSD) cover a continuous 2 theta. range of 153.6 degrees. over a total solid angle of 0.27 sr. This combination of a high incident neutron flux and a large detector solid angle provides D20 with the fastest counting rate, at a given resolution, of any reactor-based neutron diffractometer. Different monochromators and take-off angles, plus optional Soller collimators and secondary slits, permit a wide choice in the Q-space range, wavelength, resolution and flux. A high-resolution configuration offers Delta d/d similar to 2 x 10(-3). Fast modern counting electronics allow in situ time-resolved experiments at the timescale of a few tens of milliseconds. In addition, a variety of sample environments, including an optional radial oscillating collimator for suppressing parasitic scattering, contribute to a rich scientific programme.

引用

页数：6

共 26 条

[1] The crystalline structures of the odd alkanes pentane, heptane, nonane, undecane, tridecane and pentadecane monolayers adsorbed on graphite at submonolayer coverages and from the liquid [J].

Arnold, T ;

Dong, CC ;

Thomas, RK ;

Castro, MA ;

Perdigon, A ;

Clarke, SM ;

Inaba, A .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2002, 4 (14) :3430-3435

[2] In situ neutron powder diffraction of a nickel hydroxide electrode [J].

Bardé, F ;

Palacin, MR ;

Chabre, Y ;

Isnard, O ;

Tarascon, JM .

CHEMISTRY OF MATERIALS, 2004, 16 (20) :3936-3948

[3] Orientational order in concentrated dispersions of plate-like kaolinite particles under shear [J].

Brown, ABD ;

Clarke, SM ;

Convert, P ;

Rennie, AR .

JOURNAL OF RHEOLOGY, 2000, 44 (02) :221-233

[4] High-pressure synthesis and characterization of perovskites with simultaneous ordering of both the A- and B-site cations, CaCu3Ga2M2O12 (M = Sb, Ta) [J].

Byeon, SH ;

Lufaso, MW ;

Parise, JB ;

Woodward, PM ;

Hansen, T .

CHEMISTRY OF MATERIALS, 2003, 15 (20) :3798-3804

[5] A Rietveld refinement using neutron powder diffraction data of a fully deuterated topaz, Al2SiO4(OD)2 [J].

Chen, JR ;

Lager, GA ;

Kunz, M ;

Hansen, TC ;

Ulmer, P .

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2005, 61 :I253-I255

[6]

CICOGNANI G, 2005, YELLOW BOOK, P26

[7] D20 high-flux two-axis neutron diffractometer [J].

Convert, P ;

Hansen, T ;

Oed, A ;

Torregrossa, J .

PHYSICA B, 1997, 241 :195-197

[8] The high intensity two axis neutron diffractometer D20 first results [J].

Convert, P ;

Hansen, T ;

Torrégrossa, J .

EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 :314-319

[9] A large high counting rate one-dimensional position sensitive detector: The D20 banana [J].

Convert, P ;

Berneron, M ;

Gandelli, R ;

Hansen, T ;

Oed, A ;

Rambaud, A ;

Ratel, J ;

Torregrossa, J .

PHYSICA B, 1997, 234 :1082-1083

[10]

De Aza AH, 2002, J AM CERAM SOC, V85, P881

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