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Development of prototype RICH detector with multi-anode photomultipliers for radioactive ions.

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Title: Development of prototype RICH detector with multi-anode photomultipliers for radioactive ions.
Authors: Machida, M.1 (AUTHOR), Nishimura, D.1,2 (AUTHOR) dnishimu@tcu.ac.jp, Fukuda, M.3 (AUTHOR), Yagi, S.3 (AUTHOR), Sugihara, T.3 (AUTHOR), Kanbe, S.3 (AUTHOR), Yamaoka, S.3 (AUTHOR), Takechi, M.4 (AUTHOR), Tanaka, M.3 (AUTHOR), Amano, M.5 (AUTHOR), Chiba, J.1 (AUTHOR), Chikaato, K.4 (AUTHOR), Du, H.3 (AUTHOR), Fukuda, S.6 (AUTHOR), Homma, A.4 (AUTHOR), Hori, T.3 (AUTHOR), Ikeda, A.4 (AUTHOR), Ishii, R.1 (AUTHOR), Izumikawa, T.7 (AUTHOR), Kamisho, Y.3 (AUTHOR)
Source: Nuclear Instruments & Methods in Physics Research Section A. Jul2019, Vol. 931, p23-28. 6p.
Subjects: Cherenkov counters, Detectors, Counter-ions, Ion mobility, Bandpass filters, Photomultipliers
Abstract: RI-RICH, a ring-imaging Cherenkov counter for radioactive ions, has been developed to measure the velocity of the ions at intermediate energies. Our RI-RICH system consists of six multi-anode photomultiplier tubes covered with 360-nm bandpass filters and a radiator made of quartz or BK7. For the primary 132Xe beam with a velocity of β = 0. 712 , a velocity resolution of Δ β ∕ β = 4. 9 × 1 0 − 4 (one standard deviation σ) and a detection efficiency of more than 99.99% were achieved. For the secondary beams with Z = 44 – 55 and β ≃ 0. 70 , we successfully performed particle identification using the B ρ - Δ E - β method. The velocity resolutions of RI-RICH for these nuclides were equivalent to a more than 6 σ separation for the mass number. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:RI-RICH, a ring-imaging Cherenkov counter for radioactive ions, has been developed to measure the velocity of the ions at intermediate energies. Our RI-RICH system consists of six multi-anode photomultiplier tubes covered with 360-nm bandpass filters and a radiator made of quartz or BK7. For the primary 132Xe beam with a velocity of β = 0. 712 , a velocity resolution of Δ β ∕ β = 4. 9 × 1 0 − 4 (one standard deviation σ) and a detection efficiency of more than 99.99% were achieved. For the secondary beams with Z = 44 – 55 and β ≃ 0. 70 , we successfully performed particle identification using the B ρ - Δ E - β method. The velocity resolutions of RI-RICH for these nuclides were equivalent to a more than 6 σ separation for the mass number. [ABSTRACT FROM AUTHOR]
ISSN:01689002
DOI:10.1016/j.nima.2019.03.085