Optical scanning system for quality control of GEM-foils

M. Kalliokoski; T. Hilden; F. Garcia; J. Heino; R. Lauhakangas; Eija Tuominen; R. Turpeinen

doi:10.1016/j.nima.2011.10.058

Optical scanning system for quality control of GEM-foils

M. Kalliokoski^*, T. Hilden, F. Garcia, J. Heino, R. Lauhakangas, Eija Tuominen, R. Turpeinen

^*Corresponding author for this work

Not published at VTT

University of Helsinki

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

13 Citations (Scopus)

Abstract

An optical scanning system was commissioned and further developed in the Detector Laboratory of Helsinki Institute of Physics and University of Helsinki. It was designed to automatically scan, perform on-line analysis and to classify the overall quality of GEM-foils especially of the GEM-TPC detectors for Super-FRS at FAIR. The optical scanning system consists of precision positioning table, lighting, optics and operating system with analysis software. It has active scanning area of 95×95 cm² and it can study this area with the minimum resolution of 128 lp/mm. Performance of the system and first results from the GEM-foil uniformity and quality analysis are presented.

Original language	English
Pages (from-to)	223-230
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	664
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.10.058
Publication status	Published - 1 Feb 2012
MoE publication type	A1 Journal article-refereed

Keywords

Gas electron multiplier
Optical scanning system
Quality control

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10.1016/j.nima.2011.10.058

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abstract = "An optical scanning system was commissioned and further developed in the Detector Laboratory of Helsinki Institute of Physics and University of Helsinki. It was designed to automatically scan, perform on-line analysis and to classify the overall quality of GEM-foils especially of the GEM-TPC detectors for Super-FRS at FAIR. The optical scanning system consists of precision positioning table, lighting, optics and operating system with analysis software. It has active scanning area of 95×95 cm² and it can study this area with the minimum resolution of 128 lp/mm. Performance of the system and first results from the GEM-foil uniformity and quality analysis are presented.",

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AU - Kalliokoski, M.

AU - Hilden, T.

AU - Garcia, F.

AU - Heino, J.

AU - Lauhakangas, R.

AU - Tuominen, Eija

AU - Turpeinen, R.

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AB - An optical scanning system was commissioned and further developed in the Detector Laboratory of Helsinki Institute of Physics and University of Helsinki. It was designed to automatically scan, perform on-line analysis and to classify the overall quality of GEM-foils especially of the GEM-TPC detectors for Super-FRS at FAIR. The optical scanning system consists of precision positioning table, lighting, optics and operating system with analysis software. It has active scanning area of 95×95 cm² and it can study this area with the minimum resolution of 128 lp/mm. Performance of the system and first results from the GEM-foil uniformity and quality analysis are presented.

KW - Gas electron multiplier

KW - Optical scanning system

KW - Quality control

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Optical scanning system for quality control of GEM-foils

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Keywords

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