PHOTOMULTIPLIER AND ELECTRON MULTIPLIER

PURPOSE:To prevent cross talk between rows of dynodes due to electron leakage in a linear multianode photomultiplier or an electron multiplier on which a plurality of measuring beams and energy-rays of electrons, ions, etc., are incident one-dimensionally. CONSTITUTION:Regarding a transmission-type...

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Main Authors NAKATSUGAWA KIYOSHI, OZAWA KAZUO, UCHINO TADAO, KATO HISAYOSHI, ONDA HIROYUKI, KIMURA SUENORI
Format Patent
LanguageEnglish
Published 31.05.1994
Edition5
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Abstract PURPOSE:To prevent cross talk between rows of dynodes due to electron leakage in a linear multianode photomultiplier or an electron multiplier on which a plurality of measuring beams and energy-rays of electrons, ions, etc., are incident one-dimensionally. CONSTITUTION:Regarding a transmission-type photomultiplier, the direction of secondary electrons of a dynode 71 in a first stage of each row of dynodes 6 is set to be 180 deg. opposite to that of a dynode of neighboring row of dynodes. Consequently, the neighboring rows of dynodes are not set face to face but shifted in transverse direction by a prescribed distance. As a result, even if electrons leak from one row of dynodes, the leaking electrons do not come in the dynodes of the neighboring row and thus cross talk can be prevented.
AbstractList PURPOSE:To prevent cross talk between rows of dynodes due to electron leakage in a linear multianode photomultiplier or an electron multiplier on which a plurality of measuring beams and energy-rays of electrons, ions, etc., are incident one-dimensionally. CONSTITUTION:Regarding a transmission-type photomultiplier, the direction of secondary electrons of a dynode 71 in a first stage of each row of dynodes 6 is set to be 180 deg. opposite to that of a dynode of neighboring row of dynodes. Consequently, the neighboring rows of dynodes are not set face to face but shifted in transverse direction by a prescribed distance. As a result, even if electrons leak from one row of dynodes, the leaking electrons do not come in the dynodes of the neighboring row and thus cross talk can be prevented.
Author ONDA HIROYUKI
KIMURA SUENORI
OZAWA KAZUO
UCHINO TADAO
KATO HISAYOSHI
NAKATSUGAWA KIYOSHI
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– fullname: KIMURA SUENORI
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Snippet PURPOSE:To prevent cross talk between rows of dynodes due to electron leakage in a linear multianode photomultiplier or an electron multiplier on which a...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
Title PHOTOMULTIPLIER AND ELECTRON MULTIPLIER
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