Possible application of compound Fresnel lens a for neutron beam focusing

T. Adachi; K. Ikeda; T. Oku; J. Guo; W. Lin; H. Ohmori; T. Morishima; H. M. Shimizu; K. Sakai; J. Suzuki; K. C. Littrell; C. K. Loong

doi:10.1016/j.physb.2004.03.202

Possible application of compound Fresnel lens a for neutron beam focusing

T. Adachi, K. Ikeda, T. Oku, J. Guo, W. Lin, H. Ohmori, T. Morishima, H. M. Shimizu, K. Sakai, J. Suzuki, K. C. Littrell, C. K. Loong

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We have developed a Fresnel-type focusing device for cold neutrons fabricated using single crystals of magnesium fluoride. This stacked-lens device using 50 elements (with 50 beam-bending interfaces) demonstrated a focal length of 5 m with a good transmission of 0.829 for 1.14 nm neutrons. The focused beam was 5 times more intense than a beam of the same spot size with the same final flight path length produced with the traditional pinhole collimation. The background-scattering noise from lens was an order of magnitude larger than that of the traditional pinhole collimation in the momentum range of 0.01-0.05 nm^-1, almost 10^-3 of focused direct beam at the lowest momentum transfers measurable. This device produced an intensity gain in measured SANS data of more than 10 times when compared with the conventional pinhole geometry with the same minimum momentum transfer.

Original language	English
Pages (from-to)	e775-e778
Journal	Physica B: Physics of Condensed Matter
Volume	350
Issue number	1-3 SUPPL. 1
DOIs	https://doi.org/10.1016/j.physb.2004.03.202
State	Published - Jul 15 2004
Externally published	Yes

Funding

This work was performed with the support of Special Coordination Funds for promoting the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government. Authors thank to Dr. Koizumi for offering the sample to measure the small-angle scattering.

Funders	Funder number
Ministry of Education, Culture, Sports, Science and Technology

Keywords

Focusing lens
Neutron optics
Small-angle scattering

Access to Document

10.1016/j.physb.2004.03.202

Cite this

@article{22bce7f2785d4375a1eb186d2541b079,

title = "Possible application of compound Fresnel lens a for neutron beam focusing",

abstract = "We have developed a Fresnel-type focusing device for cold neutrons fabricated using single crystals of magnesium fluoride. This stacked-lens device using 50 elements (with 50 beam-bending interfaces) demonstrated a focal length of 5 m with a good transmission of 0.829 for 1.14 nm neutrons. The focused beam was 5 times more intense than a beam of the same spot size with the same final flight path length produced with the traditional pinhole collimation. The background-scattering noise from lens was an order of magnitude larger than that of the traditional pinhole collimation in the momentum range of 0.01-0.05 nm-1, almost 10-3 of focused direct beam at the lowest momentum transfers measurable. This device produced an intensity gain in measured SANS data of more than 10 times when compared with the conventional pinhole geometry with the same minimum momentum transfer.",

keywords = "Focusing lens, Neutron optics, Small-angle scattering",

author = "T. Adachi and K. Ikeda and T. Oku and J. Guo and W. Lin and H. Ohmori and T. Morishima and Shimizu, {H. M.} and K. Sakai and J. Suzuki and Littrell, {K. C.} and Loong, {C. K.}",

year = "2004",

month = jul,

day = "15",

doi = "10.1016/j.physb.2004.03.202",

language = "English",

volume = "350",

pages = "e775--e778",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-3 SUPPL. 1",

}

TY - JOUR

T1 - Possible application of compound Fresnel lens a for neutron beam focusing

AU - Adachi, T.

AU - Ikeda, K.

AU - Oku, T.

AU - Guo, J.

AU - Lin, W.

AU - Ohmori, H.

AU - Morishima, T.

AU - Shimizu, H. M.

AU - Sakai, K.

AU - Suzuki, J.

AU - Littrell, K. C.

AU - Loong, C. K.

PY - 2004/7/15

Y1 - 2004/7/15

N2 - We have developed a Fresnel-type focusing device for cold neutrons fabricated using single crystals of magnesium fluoride. This stacked-lens device using 50 elements (with 50 beam-bending interfaces) demonstrated a focal length of 5 m with a good transmission of 0.829 for 1.14 nm neutrons. The focused beam was 5 times more intense than a beam of the same spot size with the same final flight path length produced with the traditional pinhole collimation. The background-scattering noise from lens was an order of magnitude larger than that of the traditional pinhole collimation in the momentum range of 0.01-0.05 nm-1, almost 10-3 of focused direct beam at the lowest momentum transfers measurable. This device produced an intensity gain in measured SANS data of more than 10 times when compared with the conventional pinhole geometry with the same minimum momentum transfer.

AB - We have developed a Fresnel-type focusing device for cold neutrons fabricated using single crystals of magnesium fluoride. This stacked-lens device using 50 elements (with 50 beam-bending interfaces) demonstrated a focal length of 5 m with a good transmission of 0.829 for 1.14 nm neutrons. The focused beam was 5 times more intense than a beam of the same spot size with the same final flight path length produced with the traditional pinhole collimation. The background-scattering noise from lens was an order of magnitude larger than that of the traditional pinhole collimation in the momentum range of 0.01-0.05 nm-1, almost 10-3 of focused direct beam at the lowest momentum transfers measurable. This device produced an intensity gain in measured SANS data of more than 10 times when compared with the conventional pinhole geometry with the same minimum momentum transfer.

KW - Focusing lens

KW - Neutron optics

KW - Small-angle scattering

UR - http://www.scopus.com/inward/record.url?scp=23044435806&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2004.03.202

DO - 10.1016/j.physb.2004.03.202

M3 - Article

AN - SCOPUS:23044435806

SN - 0921-4526

VL - 350

SP - e775-e778

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-3 SUPPL. 1

ER -

Possible application of compound Fresnel lens a for neutron beam focusing

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this