On-line mirror alignment monitoring method for COMPASS RICH-1

M. Alexeev; R. Birsa; F. Bradamante; A. Bressan; M. Chiosso; P. Ciliberti; M. L. Colantoni; S. Dalla Torre; O. Denisov; V. Diaz; V. Duic; A. Ferrero; J. Ch Gayde; M. Giorgi; B. Gobbo; D. Kramer; S. Levorato; A. Maggiora; A. Martin; G. Menon; D. Panzieri; G. Pesaro; J. Polak; E. Rocco; P. Schiavon; F. Sozzi; L. Steiger; M. Sulc; M. Svec; S. Takekawa; F. Tessarotto

doi:10.1016/j.nima.2008.07.014

On-line mirror alignment monitoring method for COMPASS RICH-1

M. Alexeev
, R. Birsa
, F. Bradamante
, A. Bressan
, M. Chiosso
, P. Ciliberti
, M. L. Colantoni
, S. Dalla Torre
, O. Denisov
, V. Diaz
, V. Duic
, A. Ferrero
, J. Ch Gayde
, M. Giorgi
, B. Gobbo
, D. Kramer
, S. Levorato
, A. Maggiora
, A. Martin
, G. Menon

D. Panzieri, G. Pesaro, J. Polak, E. Rocco, P. Schiavon, F. Sozzi, L. Steiger, M. Sulc, M. Svec, S. Takekawa, F. Tessarotto

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

COMPASS RICH-1 is a large size gaseous Cherenkov detector. Two reflecting spherical surfaces, covering a total area of about 21 m² hosted in the radiator vessel provide image focusing. The segmented surfaces are formed by 116 mirrors, with individual degrees of freedom for angular adjustment. An original method has been developed and applied for the on-line monitoring of the mirror alignment. Relative tilts between neighbouring mirror elements create discontinuities in the image of continuous lines reflected by the mirror wall. The measurement of the discontinuities can also provide information about the absolute tilt with a resolution of 0.1 mrad. An independent check and calibration of this method has been performed in laboratory using, as reference, a laser interferometer. We present the technical solutions adopted to implement the dedicated setup, the results of the method calibration by laser interferometer, and the preliminary results obtained measuring the alignment of the RICH-1 mirror wall.

Lingua originale	Inglese
pagine (da-a)	194-196
Numero di pagine	3
Rivista	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	595
Numero di pubblicazione	1
DOI	https://doi.org/10.1016/j.nima.2008.07.014
Stato di pubblicazione	Pubblicato - 21 set 2008
Pubblicato esternamente	Sì

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10.1016/j.nima.2008.07.014

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Alexeev, M., Birsa, R., Bradamante, F., Bressan, A., Chiosso, M., Ciliberti, P., Colantoni, M. L., Torre, S. D., Denisov, O., Diaz, V., Duic, V., Ferrero, A., Gayde, J. C., Giorgi, M., Gobbo, B., Kramer, D., Levorato, S., Maggiora, A., Martin, A., ... Tessarotto, F. (2008). On-line mirror alignment monitoring method for COMPASS RICH-1. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 595(1), 194-196. https://doi.org/10.1016/j.nima.2008.07.014

@article{f4066deacbfd4be08a5522cc86e72f91,

title = "On-line mirror alignment monitoring method for COMPASS RICH-1",

abstract = "COMPASS RICH-1 is a large size gaseous Cherenkov detector. Two reflecting spherical surfaces, covering a total area of about 21 m2 hosted in the radiator vessel provide image focusing. The segmented surfaces are formed by 116 mirrors, with individual degrees of freedom for angular adjustment. An original method has been developed and applied for the on-line monitoring of the mirror alignment. Relative tilts between neighbouring mirror elements create discontinuities in the image of continuous lines reflected by the mirror wall. The measurement of the discontinuities can also provide information about the absolute tilt with a resolution of 0.1 mrad. An independent check and calibration of this method has been performed in laboratory using, as reference, a laser interferometer. We present the technical solutions adopted to implement the dedicated setup, the results of the method calibration by laser interferometer, and the preliminary results obtained measuring the alignment of the RICH-1 mirror wall.",

keywords = "COMPASS, Mirror alignment, RICH",

author = "M. Alexeev and R. Birsa and F. Bradamante and A. Bressan and M. Chiosso and P. Ciliberti and Colantoni, \{M. L.\} and Torre, \{S. Dalla\} and O. Denisov and V. Diaz and V. Duic and A. Ferrero and Gayde, \{J. Ch\} and M. Giorgi and B. Gobbo and D. Kramer and S. Levorato and A. Maggiora and A. Martin and G. Menon and D. Panzieri and G. Pesaro and J. Polak and E. Rocco and P. Schiavon and F. Sozzi and L. Steiger and M. Sulc and M. Svec and S. Takekawa and F. Tessarotto",

year = "2008",

month = sep,

day = "21",

doi = "10.1016/j.nima.2008.07.014",

language = "English",

volume = "595",

pages = "194--196",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier BV",

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}

Alexeev, M, Birsa, R, Bradamante, F, Bressan, A, Chiosso, M, Ciliberti, P, Colantoni, ML, Torre, SD, Denisov, O, Diaz, V, Duic, V, Ferrero, A, Gayde, JC, Giorgi, M, Gobbo, B, Kramer, D, Levorato, S, Maggiora, A, Martin, A, Menon, G, Panzieri, D, Pesaro, G, Polak, J, Rocco, E, Schiavon, P, Sozzi, F, Steiger, L, Sulc, M, Svec, M, Takekawa, S & Tessarotto, F 2008, 'On-line mirror alignment monitoring method for COMPASS RICH-1', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 595, n. 1, pagg. 194-196. https://doi.org/10.1016/j.nima.2008.07.014

On-line mirror alignment monitoring method for COMPASS RICH-1. / Alexeev, M.; Birsa, R.; Bradamante, F. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 595, N. 1, 21.09.2008, pag. 194-196.

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

TY - JOUR

T1 - On-line mirror alignment monitoring method for COMPASS RICH-1

AU - Alexeev, M.

AU - Birsa, R.

AU - Bradamante, F.

AU - Bressan, A.

AU - Chiosso, M.

AU - Ciliberti, P.

AU - Colantoni, M. L.

AU - Torre, S. Dalla

AU - Denisov, O.

AU - Diaz, V.

AU - Duic, V.

AU - Ferrero, A.

AU - Gayde, J. Ch

AU - Giorgi, M.

AU - Gobbo, B.

AU - Kramer, D.

AU - Levorato, S.

AU - Maggiora, A.

AU - Martin, A.

AU - Menon, G.

AU - Panzieri, D.

AU - Pesaro, G.

AU - Polak, J.

AU - Rocco, E.

AU - Schiavon, P.

AU - Sozzi, F.

AU - Steiger, L.

AU - Sulc, M.

AU - Svec, M.

AU - Takekawa, S.

AU - Tessarotto, F.

PY - 2008/9/21

Y1 - 2008/9/21

N2 - COMPASS RICH-1 is a large size gaseous Cherenkov detector. Two reflecting spherical surfaces, covering a total area of about 21 m2 hosted in the radiator vessel provide image focusing. The segmented surfaces are formed by 116 mirrors, with individual degrees of freedom for angular adjustment. An original method has been developed and applied for the on-line monitoring of the mirror alignment. Relative tilts between neighbouring mirror elements create discontinuities in the image of continuous lines reflected by the mirror wall. The measurement of the discontinuities can also provide information about the absolute tilt with a resolution of 0.1 mrad. An independent check and calibration of this method has been performed in laboratory using, as reference, a laser interferometer. We present the technical solutions adopted to implement the dedicated setup, the results of the method calibration by laser interferometer, and the preliminary results obtained measuring the alignment of the RICH-1 mirror wall.

AB - COMPASS RICH-1 is a large size gaseous Cherenkov detector. Two reflecting spherical surfaces, covering a total area of about 21 m2 hosted in the radiator vessel provide image focusing. The segmented surfaces are formed by 116 mirrors, with individual degrees of freedom for angular adjustment. An original method has been developed and applied for the on-line monitoring of the mirror alignment. Relative tilts between neighbouring mirror elements create discontinuities in the image of continuous lines reflected by the mirror wall. The measurement of the discontinuities can also provide information about the absolute tilt with a resolution of 0.1 mrad. An independent check and calibration of this method has been performed in laboratory using, as reference, a laser interferometer. We present the technical solutions adopted to implement the dedicated setup, the results of the method calibration by laser interferometer, and the preliminary results obtained measuring the alignment of the RICH-1 mirror wall.

KW - COMPASS

KW - Mirror alignment

KW - RICH

UR - https://www.scopus.com/pages/publications/51649122419

U2 - 10.1016/j.nima.2008.07.014

DO - 10.1016/j.nima.2008.07.014

M3 - Article

SN - 0168-9002

VL - 595

SP - 194

EP - 196

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1

ER -

On-line mirror alignment monitoring method for COMPASS RICH-1

Abstract

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