Development of amplifier with pulse shaper for high rate MWPC

I. Kamiji, Noboru Sasao, T. Nomura, H. Nanjo, Takahiko Masuda, N. Kawasaki, D. Naito, Y. Maeda, S. Seki, K. Nakagiri, S. Shinohara

Research output: Contribution to journalArticle

Abstract

An amplifier has been developed for wire chambers used as an in-beam detector for charged particles in the KOTO experiment, which aims at discovering a CP-violating rare decay of long-lived neutral K meson, KL → p0νν Due to in-beam condition of the wire chambers, the maximum counting rate is estimated to reach 700 kHz per channel. Because the output signals of the wire chambers have a long tail of low frequency components coming from slow drift of ions which remains tens of microseconds, pulse pile-up and baseline fluctuation are expected in such a high rate operation. In order to suppress these undesirable phenomena, a pulse shaping circuit was integrated into the signal amplifier for the wire chamber, which consists of three pole-zero cancellation networks. The performance of the pulse shaping circuit was confirmed by using a prototype single-channel MWPC. The achieved pulse width was 40% of the original one in FWHM. The total pulse width was 150 ns, where any long tail exceeding the total width vanished.

Original languageEnglish
Article number080
JournalProceedings of Science
Volume25-29-May-2015
Publication statusPublished - 2015
Externally publishedYes

Fingerprint

shapers
amplifiers
chambers
wire
pulses
pulse duration
piles
cancellation
integrated circuits
counting
charged particles
poles
mesons
prototypes
low frequencies
output
detectors
decay
ions

ASJC Scopus subject areas

  • General

Cite this

Kamiji, I., Sasao, N., Nomura, T., Nanjo, H., Masuda, T., Kawasaki, N., ... Shinohara, S. (2015). Development of amplifier with pulse shaper for high rate MWPC. Proceedings of Science, 25-29-May-2015, [080].

Development of amplifier with pulse shaper for high rate MWPC. / Kamiji, I.; Sasao, Noboru; Nomura, T.; Nanjo, H.; Masuda, Takahiko; Kawasaki, N.; Naito, D.; Maeda, Y.; Seki, S.; Nakagiri, K.; Shinohara, S.

In: Proceedings of Science, Vol. 25-29-May-2015, 080, 2015.

Research output: Contribution to journalArticle

Kamiji, I, Sasao, N, Nomura, T, Nanjo, H, Masuda, T, Kawasaki, N, Naito, D, Maeda, Y, Seki, S, Nakagiri, K & Shinohara, S 2015, 'Development of amplifier with pulse shaper for high rate MWPC', Proceedings of Science, vol. 25-29-May-2015, 080.
Kamiji I, Sasao N, Nomura T, Nanjo H, Masuda T, Kawasaki N et al. Development of amplifier with pulse shaper for high rate MWPC. Proceedings of Science. 2015;25-29-May-2015. 080.
Kamiji, I. ; Sasao, Noboru ; Nomura, T. ; Nanjo, H. ; Masuda, Takahiko ; Kawasaki, N. ; Naito, D. ; Maeda, Y. ; Seki, S. ; Nakagiri, K. ; Shinohara, S. / Development of amplifier with pulse shaper for high rate MWPC. In: Proceedings of Science. 2015 ; Vol. 25-29-May-2015.
@article{ba28556bea4b4f86b1343708c77bdfaa,
title = "Development of amplifier with pulse shaper for high rate MWPC",
abstract = "An amplifier has been developed for wire chambers used as an in-beam detector for charged particles in the KOTO experiment, which aims at discovering a CP-violating rare decay of long-lived neutral K meson, KL → p0νν Due to in-beam condition of the wire chambers, the maximum counting rate is estimated to reach 700 kHz per channel. Because the output signals of the wire chambers have a long tail of low frequency components coming from slow drift of ions which remains tens of microseconds, pulse pile-up and baseline fluctuation are expected in such a high rate operation. In order to suppress these undesirable phenomena, a pulse shaping circuit was integrated into the signal amplifier for the wire chamber, which consists of three pole-zero cancellation networks. The performance of the pulse shaping circuit was confirmed by using a prototype single-channel MWPC. The achieved pulse width was 40{\%} of the original one in FWHM. The total pulse width was 150 ns, where any long tail exceeding the total width vanished.",
author = "I. Kamiji and Noboru Sasao and T. Nomura and H. Nanjo and Takahiko Masuda and N. Kawasaki and D. Naito and Y. Maeda and S. Seki and K. Nakagiri and S. Shinohara",
year = "2015",
language = "English",
volume = "25-29-May-2015",
journal = "Proceedings of Science",
issn = "1824-8039",
publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Development of amplifier with pulse shaper for high rate MWPC

AU - Kamiji, I.

AU - Sasao, Noboru

AU - Nomura, T.

AU - Nanjo, H.

AU - Masuda, Takahiko

AU - Kawasaki, N.

AU - Naito, D.

AU - Maeda, Y.

AU - Seki, S.

AU - Nakagiri, K.

AU - Shinohara, S.

PY - 2015

Y1 - 2015

N2 - An amplifier has been developed for wire chambers used as an in-beam detector for charged particles in the KOTO experiment, which aims at discovering a CP-violating rare decay of long-lived neutral K meson, KL → p0νν Due to in-beam condition of the wire chambers, the maximum counting rate is estimated to reach 700 kHz per channel. Because the output signals of the wire chambers have a long tail of low frequency components coming from slow drift of ions which remains tens of microseconds, pulse pile-up and baseline fluctuation are expected in such a high rate operation. In order to suppress these undesirable phenomena, a pulse shaping circuit was integrated into the signal amplifier for the wire chamber, which consists of three pole-zero cancellation networks. The performance of the pulse shaping circuit was confirmed by using a prototype single-channel MWPC. The achieved pulse width was 40% of the original one in FWHM. The total pulse width was 150 ns, where any long tail exceeding the total width vanished.

AB - An amplifier has been developed for wire chambers used as an in-beam detector for charged particles in the KOTO experiment, which aims at discovering a CP-violating rare decay of long-lived neutral K meson, KL → p0νν Due to in-beam condition of the wire chambers, the maximum counting rate is estimated to reach 700 kHz per channel. Because the output signals of the wire chambers have a long tail of low frequency components coming from slow drift of ions which remains tens of microseconds, pulse pile-up and baseline fluctuation are expected in such a high rate operation. In order to suppress these undesirable phenomena, a pulse shaping circuit was integrated into the signal amplifier for the wire chamber, which consists of three pole-zero cancellation networks. The performance of the pulse shaping circuit was confirmed by using a prototype single-channel MWPC. The achieved pulse width was 40% of the original one in FWHM. The total pulse width was 150 ns, where any long tail exceeding the total width vanished.

UR - http://www.scopus.com/inward/record.url?scp=84988646673&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84988646673&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84988646673

VL - 25-29-May-2015

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

M1 - 080

ER -