Design, fabrication, and characterization of diffraction gratings for neutron phase contrast imaging

被引：78

作者：

Gruenzweig, C. ^{[1
]}

Pfeiffer, F. ^{[1
,2
]}

Bunk, O. ^{[1
]}

Donath, T. ^{[1
]}

Kuehne, G. ^{[1
]}

Frei, G. ^{[1
]}

Dierolf, M. ^{[1
]}

David, C. ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 05期

关键词：

D O I：

10.1063/1.2930866

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 [仪器科学与技术]; 080401 [精密仪器及机械]; 081102 [检测技术与自动化装置];

摘要：

We have developed a neutron phase contrast imaging method based on a grating interferometer setup. The principal constituents are two absorption gratings made of gadolinium and a phase modulating grating made of silicon. The design parameters of the setup, such as periodicity, structure heights of the gratings, and the distances between the gratings, are calculated. The fabrication of each grating is described in detail. The produced diffraction gratings were finally characterized within the setup, by locally evaluating the produced contrast (visibility) in each detector pixel, resulting in a visibility map over the whole grating size. An averaged value of 23% is achieved. (c) 2008 American Institute of Physics.

引用

收藏

页数：6

相关论文

共 17 条

[1]

Imaging - Phase radiography with neutrons [J].

Allman, BE ;

McMahon, PJ ;

Nugent, KA ;

Paganin, D ;

Jacobson, DL ;

Arif, M ;

Werner, SA .

NATURE, 2000, 408 (6809) :158-159

[2]

Design and performance of a thermal-neutron double-crystal diffractometer for USANS at NIST [J].

Barker, JG ;

Glinka, CJ ;

Moyer, JJ ;

Kim, MH ;

Drews, AR ;

Agamalian, M .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2005, 38 :1004-1011

[3]

Fabrication of diffraction gratings for hard X-ray phase contrast imaging [J].

David, C. ;

Bruder, J. ;

Rohbeck, T. ;

Gruenzweig, C. ;

Kottler, C. ;

Diaz, A. ;

Bunk, O. ;

Pfeiffer, F. .

MICROELECTRONIC ENGINEERING, 2007, 84 (5-8) :1172-1177

[4]

Differential x-ray phase contrast imaging using a shearing interferometer [J].

David, C ;

Nöhammer, B ;

Solak, HH ;

Ziegler, E .

APPLIED PHYSICS LETTERS, 2002, 81 (17) :3287-3289

[5]

Highly absorbing gadolinium test device to characterize the performance of neutron imaging detector systems [J].

Gruenzweig, C. ;

Frei, G. ;

Lehmann, E. ;

Kuehne, G. ;

David, C. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2007, 78 (05)

[6]

Multiple small angle neutron scattering:: A new two-dimensional ultrasmall angle neutron scattering technique [J].

Grunzweig, C. ;

Hils, T. ;

Muhlbauer, S. ;

Ay, M. ;

Lorenz, K. ;

Georgii, R. ;

Gaehler, R. ;

Boeni, P. .

APPLIED PHYSICS LETTERS, 2007, 91 (20)

[7]

GRUNZWEIG C, 2006, THESIS U TUBINGEN

[8]

CNR -: the new beamline for cold neutron imaging at the Swiss spallation neutron source SINQ [J].

Kühne, G ;

Frei, G ;

Lehmann, E ;

Vontobel, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 542 (1-3) :264-270

[9]

MCMAHON J, 2003, PHYS REV LETT, V91

[10]

Neutron phase imaging and tomography [J].

Pfeiffer, F. ;

Gruenzweig, C. ;

Bunk, O. ;

Frei, G. ;

Lehmann, E. ;

David, C. .

PHYSICAL REVIEW LETTERS, 2006, 96 (21)