Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter

Sugiyama, Yasuyuki; Ahn, J. K.; Banno, Satomi; Beckford, Brian; Campbell, M.; Chen, S. H.; Comfort, J. R.; Duh, Y. t.; Hineno, T.; Hsiung, Y.; Hutcheson, M.; Iwai, E.; Kamiji, I.; Kawasaki, Norioki; Kim, E. J.; Kim, J. L.; Kim, Y. J.; Ko, J.-W.; Komatsubara, T. K.; Kurilin, A. S.; Lee, J. W.; Lee, S. K.; Lim, G. Y.; Lin, C. X.; Lin, Q.; Luo, Y.; Ma, J.; Maeda, Y.; Masuda, Takahiko; Matsumura, T.; McFarland, Duncan; Murayama, R.; Naito, D.; Nakagiri, K.; Nakaya, Y.; Nanjo, H.; Nomura, T.; Odani, Y.; Redeker, J. C.; Ri, Y.D.; Sasao, N.; Sato, Kazufumi; Seki, Shu; Shimogawa, Tetsushi; Shinkawa, T.; Shinohara, Shuichi; Shiomi, K.; Su, Stephanie; Suzuki, Shoji; Tajima, Y.; Takahashi, G.; Takashima, Yasuhito; Tecchio, M.; Togawa, M.; Tung, Yu-Chen; Wah, Y. W.; Watanabe, H.; Whallon, N. L.; Woo, Jong-Kwan; Xu, J. J.; Yamanaka, T.; Yanagida, Yasuyuki; Yoshida, Hiroshi; Yoshimoto, Hiroyuki

doi:10.1016/j.nima.2020.164825

Cited by 4 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pulse shape discrimination has been well-established in several inorganic scintillators, such as CsI(Tl) and NaI(Tl) [3,[8][9][10], there remains however many frequently used inorganic scintillators where the pulse shape discrimination capabilities are less established. Illustrating this, the recent -1 -report by the KOTO experiment [1] was the first demonstration of energetic neutron vs. photon separation using pulse shape discrimination in pure CsI. The fast timing and radiation hardness of pure CsI [11][12][13] allow it to find application at several recent particle and nuclear physics experiments including KOTO [1], PIENU [14], and PIBETA [15] as well as planned use in the future experiments Mu2e [16] and the Super Charm-Tau Factory [13,17,18].…”

Section: Introductionmentioning

confidence: 86%

“…Illustrating this, the recent -1 -report by the KOTO experiment [1] was the first demonstration of energetic neutron vs. photon separation using pulse shape discrimination in pure CsI. The fast timing and radiation hardness of pure CsI [11][12][13] allow it to find application at several recent particle and nuclear physics experiments including KOTO [1], PIENU [14], and PIBETA [15] as well as planned use in the future experiments Mu2e [16] and the Super Charm-Tau Factory [13,17,18]. In this paper the pulse shape discrimination capabilities of pure CsI are explored further by comparing the scintillation response to energy deposits from energetic neutrons and cosmic muons.…”

Section: Introductionmentioning

confidence: 86%

“…Crystal calorimeters are frequently employed by particle physics experiments to perform photon detection and energy measurement, neutral hadron detection, and charged-particle identification. Recent innovations in crystal calorimetry have expanded the information recorded from each calorimeter crystal to extend beyond the crystal energy and timing by also including the pulse shape of the scintillation emission [1,2]. The new pulse shape information can be used to identify whether an energy deposit is from an electromagnetic or hadronic shower.…”

Section: Introductionmentioning

confidence: 99%

“…Pulse shape discrimination with CsI(Tl) is also applied in recent charged particle detector systems such as FAZIA [6] and ChAKRA [7]. Additionally, the KOTO experiment, which employs a pure CsI crystal calorimeter, has demonstrated that pulse shape discrimination with pure CsI allows for improvements in photon vs. neutron separation [1].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Energetic neutron identification with pulse shape discrimination in pure CsI crystals

et al. 2022

View full text Add to dashboard Cite

Pulse shape discrimination with pure CsI scintillators is investigated as a method for separating energy deposits by energetic neutrons and photons at particle physics experiments. Using neutron data collected near the European XFEL XS1 beam window the pulse shape discrimination capabilities of pure CsI are studied and compared to CsI(Tl) using near-identical detector setups, which were operated in parallel. The inelastic interactions of 100 MeV neutrons are observed to produce a slower scintillation emission in pure CsI relative to energy deposits from cosmic muons. By employing a charge-ratio method for pulse shape characterization, pulse shape discrimination with pure CsI is shown to be effective for identifying energy deposits from neutrons vs. cosmic muons, however, pure CsI was not able resolve the specific type of neutron inelastic interactions as can be done with CsI(Tl). Using pulse shape discrimination, the rate of energetic neutron interactions in a pure CsI detector is measured as a function of time and shown to be correlated with the European XFEL beam power. The results demonstrate that pulse shape discrimination with pure CsI has significant potential to improve electromagnetic vs. hadronic shower identification at future particle physics experiments.

show abstract

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Energetic neutron identification with pulse shape discrimination in pure CsI crystals

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Recker et al [11] utilized from the PSD technique in various electronics for particle detection. This technique was used to discriminate the photons and neutrons in the energy range of 0.1-2 GeV by Sugiyama et al [12]. It is clear that the PSD is a daily method in discriminating the different particles.…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Two Discrimination Spectrometers

Ermis¹,

Celiktas

2021

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

View full text Add to dashboard Cite

In order to obtain a neat gamma spectrum, two spectrometers were examined for the discrimination of the low-energy part of the 137 Cs gamma-ray spectrum which has electronic noise. Pulse shape discrimination (PSD) time measurement (timing) method was used for this purpose. This method, briefly, depends on the rise time measurement process of the signals.While implementing the process, a constant fraction discriminator (CFD) and a pulse shape analyzer (PSA) devices were used separately. Obtained spectra from the spectrometers were compared with each other. To perform an exact comparison, partial and complete discrimination processes were realized. After the comparison, it was concluded that the discrimination process through the spectrometer with PSA device was more successful than that of the other one. It was suggested that the PSD method using the PSA device would give a clearer gamma spectrum when accumulating it by a NaI(Tl) scintillation detector.

show abstract

Suppression of neutron background using deep neural network and Fourier frequency analysis at the KOTO experiment

Tung,

Li,

Hsiung

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter

Cited by 4 publications

References 14 publications

Energetic neutron identification with pulse shape discrimination in pure CsI crystals

Energetic neutron identification with pulse shape discrimination in pure CsI crystals

A Comparison of Two Discrimination Spectrometers

Suppression of neutron background using deep neural network and Fourier frequency analysis at the KOTO experiment

Contact Info

Product

Resources

About