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Journal Articles

A 3D radiation image display on a simple virtual reality system created using a game development platform

Sato, Yuki; Terasaka, Yuta; Ozawa, Shingo*; Tanifuji, Yuta; Torii, Tatsuo

Journal of Instrumentation (Internet), 13(8), p.T08011_1 - T08011_10, 2018/08

 Times Cited Count:3 Percentile:65.68(Instruments & Instrumentation)

Journal Articles

A Three-dimensional radiation image display on a real space image created via photogrammetry

Sato, Yuki; Ozawa, Shingo*; Tanifuji, Yuta; Torii, Tatsuo

Journal of Instrumentation (Internet), 13(3), p.P03001_1 - P03001_8, 2018/03

 Times Cited Count:4 Percentile:56.48(Instruments & Instrumentation)

Journal Articles

Characterization of germanium detectors for the measurement of the angular distribution of prompt $$gamma$$-rays at the ANNRI in the MLF of the J-PARC

Takada, Shusuke*; Okudaira, Takuya*; Goto, Fumiya*; Hirota, Katsuya*; Kimura, Atsushi; Kitaguchi, Masaaki*; Koga, Jun*; Nakao, Taro*; Sakai, Kenji; Shimizu, Hirohiko*; et al.

Journal of Instrumentation (Internet), 13(2), p.P02018_1 - P02018_21, 2018/02

 Times Cited Count:1 Percentile:87.96(Instruments & Instrumentation)

Journal Articles

Development of a bump cathode element for two-dimensional neutron detection

To, Kentaro; Nakamura, Tatsuya; Sakasai, Kaoru; Yamagishi, Hideshi*

Journal of Instrumentation (Internet), 12(12), p.C12011_1 - C12011_8, 2017/12

 Times Cited Count:0 Percentile:100(Instruments & Instrumentation)

A neutron-detection element using circular cathode bumps was developed for two-dimensional neutron measurement, and an irradiation experiment was performed using a $$^{252}$$Cf neutron source. The element has triangularly arranged small-sized circular cathode bumps, and the bumps are linked together in the x- and y-directions for the detection of incident neutrons. The element was arranged in the pressure vessel with a fill gas of composition He/(15%)CF$$_{4}$$ at 0.7 MPa. The detector system using bump cathode element exhibited a two-dimensional uniformity with a response of 10.1%. The average intrinsic spatial resolution was 1.89 mm full width at half maximum in the sensitive region, calculated by taking into account the track lengths of the secondary particles.

Journal Articles

Development of compact Compton camera for 3D image reconstruction of radioactive contamination

Sato, Yuki; Terasaka, Yuta; Ozawa, Shingo*; Miyamura, Hiroko; Kaburagi, Masaaki; Tanifuji, Yuta; Kawabata, Kuniaki; Torii, Tatsuo

Journal of Instrumentation (Internet), 12(11), p.C11007_1 - C11007_8, 2017/11

 Times Cited Count:8 Percentile:41.08(Instruments & Instrumentation)

Journal Articles

EXILL; A High-efficiency, high-resolution setup for $$gamma$$-spectroscopy at an intense cold neutron beam facility

Jentschel, M.*; Blanc, A.*; de France, G.*; K$"o$ster, U.*; Leoni, S.*; Mutti, P.*; Simpson, G.*; Soldner, T.*; Ur, C.*; Urban, W.*; et al.

Journal of Instrumentation (Internet), 12(11), p.P11003_1 - P11003_33, 2017/11

 Times Cited Count:22 Percentile:12.2(Instruments & Instrumentation)

Journal Articles

Development of CdTe pixel detectors combined with an aluminum Schottky diode sensor and photon-counting ASICs

Toyokawa, Hidenori*; Saji, Choji*; Kawase, Morihiro*; Wu, S.*; Hurukawa, Yukihito*; Kajiwara, Kentaro*; Sato, Masugu*; Hirono, Toko*; Shiro, Ayumi*; Shobu, Takahisa; et al.

Journal of Instrumentation (Internet), 12(1), p.C01044_1 - C01044_7, 2017/01

 Times Cited Count:2 Percentile:80.73(Instruments & Instrumentation)

We have been developing CdTe pixel detectors combined with a Schottky diode sensor and photon-counting ASICs. The hybrid pixel detector was designed with a pixel size of 200 micro-meter by 200 micro-meter and an area of 19 mm by 20 mm or 38.2 mm by 40.2 mm. The photon-counting ASIC, SP8-04F10K, has a preamplifier, a shaper, 3-level window-type discriminators and a 24-bits counter in each pixel. The single-chip detector with 100 by 95 pixels successfully operated with a photon-counting mode selecting X-ray energy with the window comparator and stable operation was realized at 20$$^{circ}$$C. We have performed a feasibility study for a white X-ray microbeam experiment. Laue diffraction patterns were measured during the scan of the irradiated position in a silicon steel sample. The grain boundaries were identified by using the differentials between adjacent images at each position.

Journal Articles

Development of laser beam injection system for the Edge Thomson Scattering (ETS) in ITER

Yatsuka, Eiichi; Hatae, Takaki; Suito, Satoshi*; Ohara, Miyuki*; Hagita, Koji*; Inoue, Kazunori*; Bassan, M.*; Walsh, M.*; Itami, Kiyoshi

Journal of Instrumentation (Internet), 11(1), p.C01006_1 - C01006_12, 2016/01

 Times Cited Count:5 Percentile:61.65(Instruments & Instrumentation)

Journal Articles

Construction and test of the first Belle II SVD ladder implementing the origami chip-on-sensor design

Irmler, C.*; Tanida, Kiyoshi; 98 of others*

Journal of Instrumentation (Internet), 11(1), p.C01087_1 - C01087_9, 2016/01

 Times Cited Count:5 Percentile:61.65(Instruments & Instrumentation)

Journal Articles

EMC studies for the vertex detector of the Belle II experiment

Thalmeier, R.*; Tanida, Kiyoshi; 102 of others*

Journal of Instrumentation (Internet), 11(1), p.C01044_1 - C01044_10, 2016/01

 Times Cited Count:2 Percentile:83.13(Instruments & Instrumentation)

Journal Articles

Silicon avalanche photodiode linear-array detector with multichannel scaling system for pulsed synchrotron X-ray experiments

Kishimoto, Shunji*; Mitsui, Takaya; Haruki, Rie*; Yoda, Yoshitaka*; Taniguchi, Takashi*; Shimazaki, Shoichi*; Ikeno, Masahiro*; Saito, Masatoshi*; Tanaka, Manobu*

Journal of Instrumentation (Internet), 10(5), p.C05030_1 - C05030_6, 2015/05

 Times Cited Count:6 Percentile:62.12(Instruments & Instrumentation)

Journal Articles

Evaluation of two-dimensional multiwire neutron detector with individual line readout under pulsed neutron irradiation

To, Kentaro; Nakamura, Tatsuya; Sakasai, Kaoru; Soyama, Kazuhiko; Yamagishi, Hideshi*

Journal of Instrumentation (Internet), 9(11), p.C11019_1 - C11019_9, 2014/11

 Times Cited Count:2 Percentile:85.87(Instruments & Instrumentation)

A multiwire-type two-dimensional neutron detector system using individual line readout and optical signal transmission method is developed for use in the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC). The sensitive area was 128 $$times$$ 128 mm$$^{2}$$ with a pitch of 1 mm in both directions (x and y), and the 256 signal lines are individually readout by signal-processing electronics. First irradiation experiments using pulsed neutrons are performed at the J-PARC/MLF. The developed detector could determine time-of-flight spectra and time-resolved two-dimensional images accurately with time range from 0 to 40 ms that arise from 25-Hz pulsed neutrons. Finally, the validity of the detector system is confirmed by a neutron reflectometry using Ni/Ti multilayer.

Journal Articles

Development of a GEM-TPC for H-dibaryon search experiment at J-PARC

Sako, Hiroyuki; Ahn, J. K.*; Baek, K. H.*; Bassalleck, B.*; Fujioka, H.*; Guo, L.*; Hasegawa, Shoichi; Hicks, K.*; Honda, R.*; Hwang, S. H.*; et al.

Journal of Instrumentation (Internet), 9(4), p.C04009_1 - C04009_10, 2014/04

 Times Cited Count:3 Percentile:79.72(Instruments & Instrumentation)

A TPC has been developed for J-PARC E42 experiment to search for H-dibaryon in ($$K^-$$, $$K^+$$) reaction. An event with 2 $$pi^-$$ and 2 protons decaying from H-dibaryon is searched for inside the TPC. The TPC has octagonal prism shape drift volume with about 50 cm diameter with 55 cm drift length filled with Ar-CH$$_{4}$$ (90:10) gas. At the end of the drift volume, 3-layer GEMs are equipped. In order to analyze momenta of produced particles, the TPC is applied with 1 T dipole magnetic field parallel to the drift electric field with a superconducting Helmholz magnet. In order to maximize the acceptance of H-dibaryon events, a diamond target is installed inside the TPC drift volume, in a cylindrical hole opened from the top to the middle of the drift volume. Since extremely high-rate $$K^-$$ beam is directly injected into the TPC drift volume to the target, a gating grid and GEMs are adopted to suppress positive-ion feedback.

Journal Articles

Progresses in development of the ITER edge Thomson scattering system

Yatsuka, Eiichi; Bassan, M.*; Hatae, Takaki; Ishikawa, Masao; Shimada, Takahiko; Vayakis, G.*; Walsh, M.*; Scannell, R.*; Huxford, R.*; Bilkova, P.*; et al.

Journal of Instrumentation (Internet), 8(12), p.C12001_1 - C12001_10, 2013/12

 Times Cited Count:6 Percentile:63.14(Instruments & Instrumentation)

Journal Articles

An Optical design and accuracy estimation for a JT-60SA edge Thomson scattering diagnostic

Tojo, Hiroshi; Hatae, Takaki; Hamano, Takashi; Sakuma, Takeshi; Itami, Kiyoshi

Journal of Instrumentation (Internet), 8(12), p.C12025_1 - C12025_13, 2013/12

 Times Cited Count:1 Percentile:91.52(Instruments & Instrumentation)

Journal Articles

Principle of an in-situ relative calibration method using a double-pass beam for Thomson scattering diagnostics

Tojo, Hiroshi; Hatae, Takaki; Itami, Kiyoshi

Journal of Instrumentation (Internet), 7(5), p.C05004_1 - C05004_11, 2012/05

 Times Cited Count:10 Percentile:49.36(Instruments & Instrumentation)

Journal Articles

Demonstration of in-situ relative calibration method for a Thomson scattering diagnostic on TST-2

Tojo, Hiroshi; Ejiri, Akira*; Hiratsuka, Junichi*; Yamaguchi, Takashi*; Takase, Yuichi*; Itami, Kiyoshi; Hatae, Takaki

Journal of Instrumentation (Internet), 7(4), p.P04005_1 - P04005_11, 2012/04

 Times Cited Count:3 Percentile:79.62(Instruments & Instrumentation)

Journal Articles

GEM-MSTPC; An Active-target type detector in low-pressure He/CO$$_{2}$$ mixed gas

Ishiyama, Hironobu*; Yamaguchi, Kanako*; Mizoi, Yutaka*; Watanabe, Yutaka*; Das, S. K.*; Hashimoto, Takashi*; Miyatake, Hiroari*; Hirayama, Yoshikazu*; Imai, Nobuaki*; Oyaizu, Mitsuhiro*; et al.

Journal of Instrumentation (Internet), 7(3), p.C03036_1 - C03036_14, 2012/03

 Times Cited Count:6 Percentile:64.68(Instruments & Instrumentation)

We developed an active-target type gas counter operating with low He/CO$$_{2}$$ (10%) detector gas for application in studying low-energy nuclear reactions using radioactive beams. A 400-$$mu$$m-thick gas electron multiplier (THGEM) was used as the proportional counter for high injection rate capability. We examined the gas gain stability and the influence of ion feedback on particle tracks at high beam injection rates of up to 10$$^{5}$$ particles per second (pps) using a low-energy $$^{12}$$C beam. From the result of this examination, we found that the THGEM was found to be applicable for our active target at high injection rates of up to 10$$^{5}$$ pps.

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