Abstract
Modulating permanent magnet sextupole lens (PMSx) for focusing pulsed cold neutrons is under development. The synchronized modulation of its field gradient suppresses the chromatic aberration which arises from the Time Of Flight method. The strength of the magnetic field, the torque, and the rise of temperature during its operation are studied on a fabricated prototype. Experiments on focusing pulsed very cold neutrons (VCN) at ILL (Institute of Laue Langevin, France) were carried out and VCN with around λ=40 Å were focused by the PMSx at a focal length of about 0.5 m. The experimental results are presented in conjunction with the principle of the neutron focusing and the modulating method of the focal strength of permanent magnet lens with the double ring structure.
| Original language | English |
|---|---|
| Pages (from-to) | 2646-2651 |
| Number of pages | 6 |
| Journal | Physica B: Condensed Matter |
| Volume | 404 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2009 Sep 1 |
| Externally published | Yes |
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Keywords
- Focusing
- Permanent magnet sextupole lens
- Pulse
- SANS
- Very cold neutrons
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons. / Yamada, Masako; Iwashita, Yoshihisa; Ichikawa, Masahiro; Sugimoto, Takanori; Tongu, Hiromu; Fujisawa, Hiroshi; Shimizu, Hirohiko M.; Ino, Takashi; Mishima, Kenji; Taketani, Kaoru; Yoshioka, Tamaki; Muto, Suguru; Morishima, Takahiro; Oku, Takayuki; Suzuki, Jun ichi; Shinohara, Takenao; Sakai, Kenji; Sato, Hiromi; Hirota, Katsuya; Otake, Yoshie; Seki, Yoshichika; Kawasaki, Shinsuke; Komamiya, Sachio; Kamiya, Yoshio; Otono, Hidetoshi; Yamashita, Satoru; Geltenbort, Peter.
In: Physica B: Condensed Matter, Vol. 404, No. 17, 01.09.2009, p. 2646-2651.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of modulating permanent magnet sextupole lens for focusing of pulsed cold neutrons
AU - Yamada, Masako
AU - Iwashita, Yoshihisa
AU - Ichikawa, Masahiro
AU - Sugimoto, Takanori
AU - Tongu, Hiromu
AU - Fujisawa, Hiroshi
AU - Shimizu, Hirohiko M.
AU - Ino, Takashi
AU - Mishima, Kenji
AU - Taketani, Kaoru
AU - Yoshioka, Tamaki
AU - Muto, Suguru
AU - Morishima, Takahiro
AU - Oku, Takayuki
AU - Suzuki, Jun ichi
AU - Shinohara, Takenao
AU - Sakai, Kenji
AU - Sato, Hiromi
AU - Hirota, Katsuya
AU - Otake, Yoshie
AU - Seki, Yoshichika
AU - Kawasaki, Shinsuke
AU - Komamiya, Sachio
AU - Kamiya, Yoshio
AU - Otono, Hidetoshi
AU - Yamashita, Satoru
AU - Geltenbort, Peter
PY - 2009/9/1
Y1 - 2009/9/1
N2 - Modulating permanent magnet sextupole lens (PMSx) for focusing pulsed cold neutrons is under development. The synchronized modulation of its field gradient suppresses the chromatic aberration which arises from the Time Of Flight method. The strength of the magnetic field, the torque, and the rise of temperature during its operation are studied on a fabricated prototype. Experiments on focusing pulsed very cold neutrons (VCN) at ILL (Institute of Laue Langevin, France) were carried out and VCN with around λ=40 Å were focused by the PMSx at a focal length of about 0.5 m. The experimental results are presented in conjunction with the principle of the neutron focusing and the modulating method of the focal strength of permanent magnet lens with the double ring structure.
AB - Modulating permanent magnet sextupole lens (PMSx) for focusing pulsed cold neutrons is under development. The synchronized modulation of its field gradient suppresses the chromatic aberration which arises from the Time Of Flight method. The strength of the magnetic field, the torque, and the rise of temperature during its operation are studied on a fabricated prototype. Experiments on focusing pulsed very cold neutrons (VCN) at ILL (Institute of Laue Langevin, France) were carried out and VCN with around λ=40 Å were focused by the PMSx at a focal length of about 0.5 m. The experimental results are presented in conjunction with the principle of the neutron focusing and the modulating method of the focal strength of permanent magnet lens with the double ring structure.
KW - Focusing
KW - Permanent magnet sextupole lens
KW - Pulse
KW - SANS
KW - Very cold neutrons
UR - http://www.scopus.com/inward/record.url?scp=68649119264&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68649119264&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2009.06.132
DO - 10.1016/j.physb.2009.06.132
M3 - Article
AN - SCOPUS:68649119264
VL - 404
SP - 2646
EP - 2651
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 17
ER -