Development of an Electron-Tracking Compton Camera using CF4 gas at high pressure for improved detection efficiency

Michiaki Takahashi; Shigeto Kabuki; Kaori Hattori; Naoki Higashi; Satoru Iwaki; Hidetoshi Kubo; Shunsuke Kurosawa; Kentaro Miuchi; Kiseki Nakamura; Hironobu Nishimura; Joseph D. Parker; Tatsuya Sawano; Atsushi Takada; Toru Tanimori; Kojiro Taniue; Kazuki Ueno

doi:10.1016/j.nima.2010.06.305

Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency

Michiaki Takahashi, Shigeto Kabuki, Kaori Hattori, Naoki Higashi, Satoru Iwaki, Hidetoshi Kubo, Shunsuke Kurosawa, Kentaro Miuchi, Kiseki Nakamura, Hironobu Nishimura, Joseph D. Parker, Tatsuya Sawano, Atsushi Takada, Toru Tanimori, Kojiro Taniue, Kazuki Ueno

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

10 Citations (Scopus)

Abstract

We have developed an Electron-Tracking Compton Camera (ETCC) for medical imaging and MeV gamma-ray astronomy. The ETCC consists of a gaseous Time Projection Chamber (μ-TPC) and pixel scintillator arrays. To improve the detection efficiency, we have optimized the gas mixture in the μ-TPC and operated the ETCC at high pressure. Basic characteristics such as the gas gain, drift velocity, energy resolution, and position resolution of the μ-TPC were examined, and using this optimization, both the efficiency and the angular resolution of the ETCC were measured. We achieved a steady gas gain of ∼20,000 in Ar/CF₄/isoC₄H₁₀ (54:40:6) at 1.4 atm. The diffusion constant in Ar/CF₄/isoC₄H₁₀ (54:40:6) at 1.4 atm was ∼2 times better than in Ar/C₂H ₆ (90:10) at 1 atm. The efficiency in Ar/CF₄/isoC ₄H₁₀ (54:40:6) at 1.4 atm was also ∼2 times higher than in Ar/C₂H₆ (90:10) at 1 atm.

Original language	English
Pages (from-to)	150-153
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	628
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2010.06.305
Publication status	Published - 2011 Feb 2
Externally published	Yes

Keywords

CF
Compton imaging
GEM
Gaseous detector
Time projection chamber
μ-PIC

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Takahashi, M., Kabuki, S., Hattori, K., Higashi, N., Iwaki, S., Kubo, H., Kurosawa, S., Miuchi, K., Nakamura, K., Nishimura, H., Parker, J. D., Sawano, T., Takada, A., Tanimori, T., Taniue, K., & Ueno, K. (2011). Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 628(1), 150-153. https://doi.org/10.1016/j.nima.2010.06.305

Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency. / Takahashi, Michiaki; Kabuki, Shigeto; Hattori, Kaori; Higashi, Naoki; Iwaki, Satoru; Kubo, Hidetoshi; Kurosawa, Shunsuke; Miuchi, Kentaro; Nakamura, Kiseki; Nishimura, Hironobu; Parker, Joseph D.; Sawano, Tatsuya; Takada, Atsushi; Tanimori, Toru; Taniue, Kojiro; Ueno, Kazuki.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 628, No. 1, 02.02.2011, p. 150-153.

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

Takahashi, M, Kabuki, S, Hattori, K, Higashi, N, Iwaki, S, Kubo, H, Kurosawa, S, Miuchi, K, Nakamura, K, Nishimura, H, Parker, JD, Sawano, T, Takada, A, Tanimori, T, Taniue, K & Ueno, K 2011, 'Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 628, no. 1, pp. 150-153. https://doi.org/10.1016/j.nima.2010.06.305

Takahashi M, Kabuki S, Hattori K, Higashi N, Iwaki S, Kubo H et al. Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Feb 2;628(1):150-153. https://doi.org/10.1016/j.nima.2010.06.305

Takahashi, Michiaki ; Kabuki, Shigeto ; Hattori, Kaori ; Higashi, Naoki ; Iwaki, Satoru ; Kubo, Hidetoshi ; Kurosawa, Shunsuke ; Miuchi, Kentaro ; Nakamura, Kiseki ; Nishimura, Hironobu ; Parker, Joseph D. ; Sawano, Tatsuya ; Takada, Atsushi ; Tanimori, Toru ; Taniue, Kojiro ; Ueno, Kazuki. / Development of an Electron-Tracking Compton Camera using CF₄ gas at high pressure for improved detection efficiency. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 628, No. 1. pp. 150-153.

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AU - Iwaki, Satoru

AU - Kubo, Hidetoshi

AU - Kurosawa, Shunsuke

AU - Miuchi, Kentaro

AU - Nakamura, Kiseki

AU - Nishimura, Hironobu

AU - Parker, Joseph D.

AU - Sawano, Tatsuya

AU - Takada, Atsushi

AU - Tanimori, Toru

AU - Taniue, Kojiro

AU - Ueno, Kazuki

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AB - We have developed an Electron-Tracking Compton Camera (ETCC) for medical imaging and MeV gamma-ray astronomy. The ETCC consists of a gaseous Time Projection Chamber (μ-TPC) and pixel scintillator arrays. To improve the detection efficiency, we have optimized the gas mixture in the μ-TPC and operated the ETCC at high pressure. Basic characteristics such as the gas gain, drift velocity, energy resolution, and position resolution of the μ-TPC were examined, and using this optimization, both the efficiency and the angular resolution of the ETCC were measured. We achieved a steady gas gain of ∼20,000 in Ar/CF4/isoC4H10 (54:40:6) at 1.4 atm. The diffusion constant in Ar/CF4/isoC4H10 (54:40:6) at 1.4 atm was ∼2 times better than in Ar/C2H 6 (90:10) at 1 atm. The efficiency in Ar/CF4/isoC 4H10 (54:40:6) at 1.4 atm was also ∼2 times higher than in Ar/C2H6 (90:10) at 1 atm.

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