Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden"

H. Fujita; G. P.A. Berg; Y. Fujita; K. Hatanaka; T. Noro; E. J. Stephenson; C. C. Foster; H. Sakaguchi; M. Itoh; T. Taki; K. Tamura; H. Ueno

doi:10.1016/S0168-9002(01)00706-9

Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden"

H. Fujita, G. P.A. Berg, Y. Fujita, K. Hatanaka, T. Noro, E. J. Stephenson, C. C. Foster, H. Sakaguchi, M. Itoh, T. Taki, K. Tamura, H. Ueno

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

72 Scopus citations

Abstract

Demand for near-zero-degree measurements using a magnetic spectrometer is increasing with the growing interest in the study of L = 0 nuclear excitation modes. For the precise determination of scattering angles near 0°, both horizontal and vertical scattering angle components have to be measured with good accuracy. It is, however, not easy to realize a good vertical angle resolution using modern high-resolution magnetic spectrometers with small vertical angle magnifications, like "Grand Raiden" at RCNP or "K600" at IUCF. A new ion-optical mode which enables the precise determination of vertical components of scattering angles from vertical position measurements in the focal plane has been developed for these spectrometers. For the wide range of spatial as well as momentum acceptances, vertical angle resolution better than 8 mrad is realized for Grand Raiden at RCNP.

Original language	English
Pages (from-to)	55-62
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	469
Issue number	1
DOIs	https://doi.org/10.1016/S0168-9002(01)00706-9
State	Published - 1 Aug 2001
Externally published	Yes

Keywords

Angular dispersion
Dispersion matching
Good angle resolution
Magnetic spectrometer
Off-focus mode
Vertical angle

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10.1016/S0168-9002(01)00706-9

Cite this

Fujita, H., Berg, G. P. A., Fujita, Y., Hatanaka, K., Noro, T., Stephenson, E. J., Foster, C. C., Sakaguchi, H., Itoh, M., Taki, T., Tamura, K., & Ueno, H. (2001). Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 469(1), 55-62. https://doi.org/10.1016/S0168-9002(01)00706-9

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abstract = "Demand for near-zero-degree measurements using a magnetic spectrometer is increasing with the growing interest in the study of L = 0 nuclear excitation modes. For the precise determination of scattering angles near 0°, both horizontal and vertical scattering angle components have to be measured with good accuracy. It is, however, not easy to realize a good vertical angle resolution using modern high-resolution magnetic spectrometers with small vertical angle magnifications, like {"}Grand Raiden{"} at RCNP or {"}K600{"} at IUCF. A new ion-optical mode which enables the precise determination of vertical components of scattering angles from vertical position measurements in the focal plane has been developed for these spectrometers. For the wide range of spatial as well as momentum acceptances, vertical angle resolution better than 8 mrad is realized for Grand Raiden at RCNP.",

keywords = "Angular dispersion, Dispersion matching, Good angle resolution, Magnetic spectrometer, Off-focus mode, Vertical angle",

author = "H. Fujita and Berg, {G. P.A.} and Y. Fujita and K. Hatanaka and T. Noro and Stephenson, {E. J.} and Foster, {C. C.} and H. Sakaguchi and M. Itoh and T. Taki and K. Tamura and H. Ueno",

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Fujita, H, Berg, GPA, Fujita, Y, Hatanaka, K, Noro, T, Stephenson, EJ, Foster, CC, Sakaguchi, H, Itoh, M, Taki, T, Tamura, K & Ueno, H 2001, 'Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden"', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 469, no. 1, pp. 55-62. https://doi.org/10.1016/S0168-9002(01)00706-9

Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden". / Fujita, H.; Berg, G. P.A.; Fujita, Y. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 469, No. 1, 01.08.2001, p. 55-62.

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

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AU - Fujita, H.

AU - Berg, G. P.A.

AU - Fujita, Y.

AU - Hatanaka, K.

AU - Noro, T.

AU - Stephenson, E. J.

AU - Foster, C. C.

AU - Sakaguchi, H.

AU - Itoh, M.

AU - Taki, T.

AU - Tamura, K.

AU - Ueno, H.

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AB - Demand for near-zero-degree measurements using a magnetic spectrometer is increasing with the growing interest in the study of L = 0 nuclear excitation modes. For the precise determination of scattering angles near 0°, both horizontal and vertical scattering angle components have to be measured with good accuracy. It is, however, not easy to realize a good vertical angle resolution using modern high-resolution magnetic spectrometers with small vertical angle magnifications, like "Grand Raiden" at RCNP or "K600" at IUCF. A new ion-optical mode which enables the precise determination of vertical components of scattering angles from vertical position measurements in the focal plane has been developed for these spectrometers. For the wide range of spatial as well as momentum acceptances, vertical angle resolution better than 8 mrad is realized for Grand Raiden at RCNP.

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KW - Dispersion matching

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ER -

Fujita H, Berg GPA, Fujita Y, Hatanaka K, Noro T, Stephenson EJ et al. Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden". Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2001 Aug 1;469(1):55-62. doi: 10.1016/S0168-9002(01)00706-9

Better-resolution measurement of vertical scattering angle in a new ion-optical mode of spectrometer "Grand Raiden"

Abstract

Keywords

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