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103. Highly polarized electrons from GaAs–GaAsP and InGaAs–AlGaAs strained-layer superlattice photocathodes.

Author

Nishitani, T., Nakanishi, T., Yamamoto, M., Okumi, S., Furuta, F., Miyamoto, M., Kuwahara, M., Yamamoto, N., Naniwa, K., Watanabe, O., Takeda, Y., Kobayakawa, H., Takashima, Y., Horinaka, H., Matsuyama, T., Togawa, K., Saka, T., Tawada, M., Omori, T., and Kurihara, Y.

Subjects
*PHOTOCATHODES, *CATHODES, *FIELD emission cathodes, *GALLIUM arsenide semiconductors, *SEMICONDUCTORS, *SUPERLATTICES
Abstract

GaAs–GaAsP and InGaAs–AlGaAs strained-layer superlattice photocathodes are presented as emission sources for highly polarized electron beams. The GaAs–GaAsP cathode achieved a maximum polarization of 92(±6)% with a quantum efficiency of 0.5%, while the InGaAs–AlGaAs cathode provides a higher quantum efficiency (0.7%) but a lower polarization [77(±5)%]. Criteria for achieving high polarization using superlattice photocathodes are discussed based on experimental spin-resolved quantum efficiency spectra. [ABSTRACT FROM AUTHOR]

Published
2005
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105. Extension of the operational regime of the LHD towards a deuterium experiment

Author

Takeiri, Y., primary, Morisaki, T., additional, Osakabe, M., additional, Yokoyama, M., additional, Sakakibara, S., additional, Takahashi, H., additional, Nakamura, Y., additional, Oishi, T., additional, Motojima, G., additional, Murakami, S., additional, Ito, K., additional, Ejiri, A., additional, Imagawa, S., additional, Inagaki, S., additional, Isobe, M., additional, Kubo, S., additional, Masamune, S., additional, Mito, T., additional, Murakami, I., additional, Nagaoka, K., additional, Nagasaki, K., additional, Nishimura, K., additional, Sakamoto, M., additional, Sakamoto, R., additional, Shimozuma, T., additional, Shinohara, K., additional, Sugama, H., additional, Watanabe, K.Y., additional, Ahn, J.W., additional, Akata, N., additional, Akiyama, T., additional, Ashikawa, N., additional, Baldzuhn, J., additional, Bando, T., additional, Bernard, E., additional, Castejón, F., additional, Chikaraishi, H., additional, Emoto, M., additional, Evans, T., additional, Ezumi, N., additional, Fujii, K., additional, Funaba, H., additional, Goto, M., additional, Goto, T., additional, Gradic, D., additional, Gunsu, Y., additional, Hamaguchi, S., additional, Hasegawa, H., additional, Hayashi, Y., additional, Hidalgo, C., additional, Higashiguchi, T., additional, Hirooka, Y., additional, Hishinuma, Y., additional, Horiuchi, R., additional, Ichiguchi, K., additional, Ida, K., additional, Ido, T., additional, Igami, H., additional, Ikeda, K., additional, Ishiguro, S., additional, Ishizaki, R., additional, Ishizawa, A., additional, Ito, A., additional, Ito, Y., additional, Iwamoto, A., additional, Kamio, S., additional, Kamiya, K., additional, Kaneko, O., additional, Kanno, R., additional, Kasahara, H., additional, Kato, D., additional, Kato, T., additional, Kawahata, K., additional, Kawamura, G., additional, Kisaki, M., additional, Kitajima, S., additional, Ko, W.H., additional, Kobayashi, M., additional, Kobayashi, S., additional, Kobayashi, T., additional, Koga, K., additional, Kohyama, A., additional, Kumazawa, R., additional, Lee, J.H., additional, López-Bruna, D., additional, Makino, R., additional, Masuzaki, S., additional, Matsumoto, Y., additional, Matsuura, H., additional, Mitarai, O., additional, Miura, H., additional, Miyazawa, J., additional, Mizuguchi, N., additional, Moon, C., additional, Morita, S., additional, Moritaka, T., additional, Mukai, K., additional, Muroga, T., additional, Muto, S., additional, Mutoh, T., additional, Nagasaka, T., additional, Nagayama, Y., additional, Nakajima, N., additional, Nakanishi, H., additional, Nakano, H., additional, Nakata, M., additional, Narushima, Y., additional, Nishijima, D., additional, Nishimura, A., additional, Nishimura, S., additional, Nishitani, T., additional, Nishiura, M., additional, Nobuta, Y., additional, Noto, H., additional, Nunami, M., additional, Obana, T., additional, Ogawa, K., additional, Ohdachi, S., additional, Ohno, M., additional, Ohno, N., additional, Ohtani, H., additional, Okamoto, M., additional, Oya, Y., additional, Ozaki, T., additional, Peterson, B.J., additional, Preynas, M., additional, Sagara, S., additional, Saito, K., additional, Sakaue, H., additional, Sanpei, A., additional, Satake, S., additional, Sato, M., additional, Saze, T., additional, Schmitz, O., additional, Seki, R., additional, Seki, T., additional, Sharov, I., additional, Shimizu, A., additional, Shiratani, M., additional, Shoji, M., additional, Skinner, C., additional, Soga, R., additional, Stange, T., additional, Suzuki, C., additional, Suzuki, Y., additional, Takada, S., additional, Takahata, K., additional, Takayama, A., additional, Takayama, S., additional, Takemura, Y., additional, Takeuchi, Y., additional, Tamura, H., additional, Tamura, N., additional, Tanaka, H., additional, Tanaka, K., additional, Tanaka, M., additional, Tanaka, T., additional, Tanaka, Y., additional, Toda, S., additional, Todo, Y., additional, Toi, K., additional, Toida, M., additional, Tokitani, M., additional, Tokuzawa, T., additional, Tsuchiya, H., additional, Tsujimura, T., additional, Tsumori, K., additional, Usami, S., additional, Velasco, J.L., additional, Wang, H., additional, Watanabe, T.-H., additional, Watanabe, T., additional, Yagi, J., additional, Yajima, M., additional, Yamada, H., additional, Yamada, I., additional, Yamagishi, O., additional, Yamaguchi, N., additional, Yamamoto, Y., additional, Yanagi, N., additional, Yasuhara, R., additional, Yatsuka, E., additional, Yoshida, N., additional, Yoshinuma, M., additional, Yoshimura, S., additional, and Yoshimura, Y., additional

Published
2017
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106. Investigation of irradiation effects on highly integrated leading-edge electronic components of diagnostics and control systems for LHD deuterium operation

Author

Ogawa, K., primary, Nishitani, T., additional, Isobe, M., additional, Murata, I., additional, Hatano, Y., additional, Matsuyama, S., additional, Nakanishi, H., additional, Mukai, K., additional, Sato, M., additional, Yokota, M., additional, Kobuchi, T., additional, Nishimura, T., additional, and Osakabe, M., additional

Published
2017
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111. Calibration experiments of [sup 3]He neutron detectors for analyzing neutron emissivity in the hot-ion mode on the GAMMA 10 tandem mirror

Author

Kohagura, J., Cho, T., Hirata, M., Watanabe, H., Minami, R., Numakura, T., Yoshida, M., Ito, H., Tatematsu, Y., Yatsu, K., Miyoshi, S., Ogura, K., Kondoh, T., Nishitani, T., Kwon, M., and England, A.C.

Abstract

Under the international fusion cooperating research, ³He neutron detectors in the GAMMA 10 tandem mirror are calibrated by the use of a [sup 252]Cf spontaneous fission neutron source (8.96 × 10[sup 4]n/s). The calibration experiments are carried out with a "rail system" placed along the magnetic axis of the GAMMA 10 central-cell region, where hot ions in the plasma experiments with the bulk temperatures of ∼10 keV are produced. As compared to a previous neutron monitoring system with a BF[sub 3] detector in GAMMA 10, the present ³He systems are designed with about two orders-of-magnitude higher neutron-counting efficiency for analyzing a neutron emissivity from the plasmas in a single plasma discharge alone. Two ³He systems are installed near the middle and the end of the central cell so as to identify the central-cell hot-ion axial profile. The filling pressure of ³He, the effective length, and the diameter of the detector are designed as 5 bar, 300 mm, and 50 mm, respectively. The detector output spectra are carefully analyzed by the use of a preamplifier, a shaping amplifier, as well as a multichannel analyzer for each ³He detector. In the present article, the neutron-counting data from the two ³He detectors due to the on-axis [sup 252]Cf scan are interpreted in terms of the d[sup -2] intensity dependence (d being the distance between the detector and the neutron source) as well as the effects of the central-cell magnetic coils and the other machine structural components.

Published
2003

116. General Lectures

Author

Yamaoka, Y., Nagai, T., Furuta, K., Inagawa, T., Sugiya, T., Kai, T., Amamoto, H., Okunara, T., Miyoshi, A., Araya, S., Sometani, T., Ogura, T., Yamato, T., Hirata, S., Hashimoto, T., Hamanaka, Y., Shakudo, Y., Ozaki, T., Noda, S., Kobayashi, K., Sasaki, K., Matsuura, R., Ueno, H., Ito, T., Umayahara, A., Koga, Y., Watanabe, K., Nabeya, K., Shimura, I., Ohyama, O., Komatsuzaki, T., Ogoshi, K., Hara, Y., Hiratsuka, H., Kubo, N., Masuda, H., Inoue, S., Arakawa, H., Koizumi, K., Mukozima, K., Inoue, Y., Hosaka, H., Kikuchi, N., Yoshida, H., Sakumoto, I., Inaba, M., Yokoi, Y., Abei, T., Iwama, S., Shirota, A., Miki, M., Ōkawa, K., Onda, M., Yoshioka, M., Shiba, T., Yamashita, K., Moriyama, Y., Adachi, K., Miyashita, M., Henmi, H., Egami, K., Toi, K., Fukiwake, T., Ito, H., Tamesue, N., Ohsato, K., Nagamitsu, S., Nishimura, M., Yamashita, Y., Yao, T., Mizuno, S., Tanabe, M., Yanase, M., Suzuki, K., Suzuki, K., Hayashi, K., Nishitani, T., Katake, K., Iwasa, N., Nishimura, S., Miyoshi, M., Fukumoto, K., Fujii, H., Inatomi, I., Nakajima, H., Hojo, Y., Tosaka, T., Kaneko, H., Yoshikawa, K., Mori, K., Uematsu, T., Takahashi, T., Morikawa, S., Hashi, M., Sakamoto, T., Kimura, A., Sasagawa, T., Maeda, Y., Matsukawa, M., Aizawa, T., Tabata, I., Munakata, A., Toda, S., Tajima, T., Matsunaga, F., Ogata, T., Nakayama, K., Nakayama, T., Minota, S., Otani, A., Takei, S., Tanaka, M., Miki, H., Hojo, K., Hirota, E., Sano, R., Murashima, Y., Okuuti, Y., Miwa, K., Suga, T., Yaosaka, T., Namiki, M., Kawauti, H., Nakagawa, K., Kasukawa, T., Kobayashi, S., Watanabe, H., Yamagata, S., Narasaka, T., Imai, H., Tsuneoka, T., Watanabe, H., Hoshi, K., Nishiyama, S., Hoshi, K., Fushimi, I., Hirai, T., Katsuda, M., Hirose, M., Yokomori, H., Matsumoto, T., Watanabe, N., Matsuura, K., Ishibashi, T., Nakata, S., Takei, C., Asano, H., Miyoshi, H., Hidaka, T., Dodo, H., Kitada, A., Nakamura, T., Sakata, S., Kitamura, S., Nakamua, T., Sakata, S., Kitamura, S., Agata, E., Aikawa, K., Oshima, A., Fujimoto, I., Kobayashi, T., Asakawa, Y., Kusakari, M., Abe, C., Tarumi, S., Yamashita, T., Takasu, S., Komase, Y., Hamada, H., Shoji, F., Saito, S., Takayama, T., Fujita, R., Kumura, F., Umeda, K., Okamoto, S., Nishio, H., Shintani, Y., Saitoh, K., Tatara, T., Iwamiya, K., Tamura, M., Tamura, K., Nakano, A., Tamura, U., Nakajima, T., Ichioka, G., Takeuchi, Y., Ayada, K., Torisu, R., Kamada, H., Matuoka, R., Turuoka, M., Sagara, Y., Nakamura, S., Sakasita, O., Mashimo, N., Sekiguchi, T., Kobayashi, S., Kishimoto, H., Takeuchi, T., Murakami, S., Koga, S., Ueno, M., Nishizawa, M., Nomoto, K., Kariya, A., Hayashi, M., Kobayashi, S., Mizuno, K., Mayama, S., Shinozuka, T., Maruyama, T., Ogiwara, T., Okui, K., Higurashi, K., Ito, T., Miyata, Y., Tamura, T., Ikeda, S., Nakata, J., Oshima, H., Mori, S., Otsuka, Y., Oki, I., Tasaka, S., Yamahatsu, J., Inaba, E., Sanada, K., Oura, T., Kinoshita, T., Akagi, M., Katsuhisa, F., Misumi, A., Urashima, K., Ninomiya, S., Hukami, M., Mori, T., Matsuo, Y., Seki, A., Kitamura, T., Mori, H., Yokota, R., Kawashima, S., Itoshima, T., Shimada, Y., Itoshima, T., Inoue, T., Fukuhara, J., Kubota, M., Ohta, W., Ohta, W., Kagaya, T., Abe, R., Kai, Y., Katono, S., Komatsu, K., Masuda, H., Inoue, S., Arakawa, H., Hamajima, T., Kitamura, T., Nakagawa, F., Tamura, H., Kiyonaga, G., Inui, H., Asai, H., Hayashi, N., Obata, H., Toki, F., Kakae, U., Yamauchi, D., Hisamitsu, T., Aziki, K., Tamiya, M., Watanabe, S., Kurokawa, K., Takemoto, T., Murakami, S., Kessoku, Y., Kuwana, H., Hino, K., Kato, A., Ito, A., Arakawa, Y., Ohono, Y., Hase, M., Ariga, K., Usui, R., Kutsukake, S., Nagamori, S., Nagano, H., Shimano, K., Ohya, T., Kikuchi, S., Ito, M., Hidano, S., Banno, H., Tomura, A., Kato, K., Koyama, T., Komatsu, T., Takei, T., Tomimura, K., Yamauchi, M., Sato, G., Sato, R., Haga, M., Toyokawa, S., Yamamoto, J., Ohtomi, S., Ishibashi, Y., Fukuda, M., Endo, R., Ueno, Y., Hisamitsu, T., Sasaki, T., Kobayashi, C., Kusakari, T., Yajima, T., Maeda, M., Kotoda, K., Okuda, K., Ariga, H., Takazawa, G., Nakamura, Y., Ohbayashi, A., Mitsui, H., Nakata, K., Suematsu, T., Kashiwagi, T., Hayashi, N., Baba, T., Tobimatsu, Y., Kamada, T., Abe, H., Matsuoka, K., Matsushima, S., Kamisaka, Y., Kitsuki, T., Ohnuki, H., Fujii, M., Inoue, R., Yamamoto, T., Wakisaka, G., Nakagawa, S., Nagata, K., Takebayashi, J., Nagashima, H., Tanaka, N., Kanai, K., Oda, T., Katayama, T., Furukawa, Y., Miyasaki, R., Noguchi, M., Hirose, K., Maezawa, H., Kano, H., Hirano, K., Ogino, M., Nishiwaki, K., Aoki, T., Morishita, T., Funatsu, K., Morita, A., Okazaki, I., Matsuzaki, S., Oda, M., Asakura, H., Kamegaya, K., Tsuchiya, M., Sambe, K., Kawakami, H., Kunimasa, T., Aimitsu, A., Yamashita, S., Miyoshi, A., Enzan, H., Ikehara, K., Shiozaki, Y., Sameshima, Y., Mizuno, T., Sasakawa, M., Nagi, S., Nagata, T., Fuwa, H., Tatsumi, K., Komatsu, K., Ozeki, T., Kaneda, M., Otsuki, M., Tadaki, H., Miura, K., Yamagata, S., Iwamura, K., Yamanaka, I., Sugimoto, E., Yamazaki, Y., Shiraishi, I., Yamanaka, T., Koike, H., Shimura, S., Hirayama, Y., Nishikawa, H., Kawamura, T., Kamiyama, Y., Takeda, H., Kamano, Y., Kitamura, O., Yamaoka, Y., Nanbu, H., Ozawa, K., Takasan, H., Honjo, I., Itakura, H., Akanuma, Y., Kagaya, T., Kaito, I., Sato, S., Sahara, H., Arisue, T., Kashimura, K., Motoyama, W., Hayashi, H., Okuyama, S., Ito, S., Inagaki, T., Kato, Y., Kakumu, S., Kurokawa, S., Yamawaki, T., Kusakabe, A., Hara, T., Funayama, A., Takahashi, T., Furuta, S., Omori, A., Hanaoka, S., Nagata, A., Tsukioka, J., Kiyosawa, K., Akahane, Y., Koike, Y., Oda, M., Tanaka, K., Kojima, M., Kawaguchi, Y., Kimura, A., Osamura, H., Kurihara, N., Okabe, K., Fujisawa, K., Takahashi, T., Kitami, N., Namihisa, T., Yamaguchi, K., Hisauchi, T., Nambu, M., Iijima, K., Rin, K., Kuroda, H., Kobayashi, N., Inami, Y., Shiga, K., Kon, T., Yamada, T., Yamada, T., Mizoguchi, Y., Enomoto, T., Monna, T., Yamamoto, S., Morisawa, S., Imoto, S., Uchita, K., Yamasawa, Y., Hiraide, S., Hikita, G., Takatsuki, K., Okimoto, Y., Nakagawa, J., Ito, K., Hirayama, C., Kawasaki, H., Irisa, T., Arimura, K., Amagase, H., Shibasaki, K., Tashiro, S., Ichida, F., Tozawa, T., Ishii, M., Inoue, E., Ikehara, H., Baba, S., Miyaji, Y., Nakajima, K., Shimizu, T., Shimizu, Y., Ohnishi, S., Sasaki, S., Kinami, Y., Mizukami, T., Nishida, Y., Nakagawa, T., Ojima, T., Takeshita, Y., Yamashita, T., Furuto, T., Ono, T., Yamaguchi, K., Mizuno, S., Tsumori, K., Miyagi, K., Suga, Y., Tatsumi, S., Kitano, A., Makiishi, H., Mitani, E., Mohri, S., Kamata, T., Kobayashi, K., Yamamoto, S., Yoshii, T., Takemoto, T., Suzuki, H., Hiratsuka, H., Takada, K., Maruyama, M., Takemoto, T., Suzuki, H., Katsu, K., Nomura, M., Kiyama, T., Hirabayashi, H., Yamashita, H., Masuyama, S., Takehara, Y., Sato, T., Abe, H., Sugiura, M., Shima, F., Ichihara, S., Yamasaki, Z., Fukuzawa, S., Horiguchi, Y., Takeda, T., Nakano, S., Kitamura, K., Miwa, M., Suzuke, T., Okada, K., Nakamura, T., Kikuchi, T., Mishima, K., Mandai, M., Kondo, H., Yamagata, Y., Uchida, Y., Harada, H., Nishizawa, M., Nomoto, K., Kariya, A., Ueno, M., Hayashi, M., Kobayashi, S., Mizuno, K., Shinozuka, T., Maruyama, T., Ogiwara, T., Okui, K., Miyake, N., Okada, M., Takahashi, K., Koizumi, H., Hayashi, T., Maeda, H., Abe, M., Takahashi, I., Matsumoto, M., Unoura, T., Iwasaki, A., Hattori, T., Tanaka, M., Hara, T., Sato, H., Hirashima, T., Shioda, A., Kawamura, I., Muto, M., Tsuchiya, R., Sato, Y., Ozawa, T., Hatano, T., Arae, H., Sekine, T., Tsukamoto, M., Shiratori, T., Asaki, S., Oba, E., Yamagata, H., Kobiyama, M., Hisamichi, S., Kitagawa, M., Kobayashi, N., Kurosawa, T., Tokimatsu, S., Kawasaki, S., Iwasa, A., Nagashima, K., Kodeki, K., Hoshizawa, T., Murakami, H., Yagi, T., Matsuda, T., Iwazaki, T., Suzuki, Y., Taketomi, H., Akaike, Y., Naramoto, J., Tsuru, T., Inoue, M., Nagase, T., Kato, K., and Kohyama, K.

Published
1973
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118. Development of in-vessel components of the microfission chamber for ITER1

Author

Ishikawa, M., Kondoh, T., Ookawa, K., Fujita, K., Yamauchi, M., Hayakawa, A., Nishitani, T., and Kusama, Y.

Subjects
Fusion Products and Fast Ions—Ramon J. Leeper, Session Chairman
Abstract

Microfission chambers (MFCs) will measure the total neutron source strength in ITER. The MFCs will be installed behind blanket modules in the vacuum vessel (VV). Triaxial mineral insulated (MI) cables will carry signals from the MFCs. The joint connecting triaxial MI cables in the VV must be considered because the MFCs and the MI cables will be installed separately at different times. Vacuum tight triaxial connector of the MI cable has been designed and a prototype has been constructed. Performance tests indicate that the connector can be applied to the ITER environment. A small bending-radius test of the MI cable indicates no observed damage at a curvature radius of 100 mm.

Published
2010

123. Wide dynamic range neutron flux monitor having fast time response for the Large Helical Device

Author

Isobe, M., primary, Ogawa, K., additional, Miyake, H., additional, Hayashi, H., additional, Kobuchi, T., additional, Nakano, Y., additional, Watanabe, K., additional, Uritani, A., additional, Misawa, T., additional, Nishitani, T., additional, Tomitaka, M., additional, Kumagai, T., additional, Mashiyama, Y., additional, Ito, D., additional, Kono, S., additional, Yamauchi, M., additional, and Takeiri, Y., additional

Published
2014
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124. 900-L liquid xenon cryogenic system operation for the MEG experiment

Author

Haruyama, T., Kasami, K., Mihara, S., Hisamatsu, Y., Iawamoto, W., Mori, T., Nishiguchi, H., Otani, W., Sawada, R., Yusuke Uchiyama, and Nishitani, T.

Subjects
Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, Detectors and Experimental Techniques
Abstract

A cryogenic system for the MEG (muon rare decay) experiment has started operation at the Paul Sherrer Institute in Zurich. The main part of the MEG detector is the 900-L liquid xenon calorimeter for gamma ray detection, equipped with 850 photo multipliers directly immersed in liquid xenon. A 200 W pulse tube cryocooler enabled LN2-free operation of this calorimeter. A liquid purification system; using a liquid pump and a zero boil-off 1000-L cryogenic buffer dewar is also included in the system. The first entire engineering run was carried out in November-December 2007 and satisfactory cryogenic performances were confirmed.

Published
2009

125. JT-60U SYSTEM DESIGN

Author

Matsukawa, M., primary, Ando, T., additional, Araki, M., additional, Horie, T., additional, Horiike, H., additional, Ikeda, Y., additional, Kikuchi, M., additional, Kishimoto, H., additional, Koizumi, K., additional, Matsukawa, T., additional, Neyatani, Y., additional, Ninomiya, H., additional, Nishitani, T., additional, Seki, S., additional, Takatsu, H., additional, and Yamamoto, M., additional

Published
1989
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127. JT-60 UPGRADE PROGRAM

Author

Kikuchi, M., primary, Ando, T., additional, Araki, M., additional, Horie, T., additional, Horiike, H., additional, Ikeda, Y., additional, Kishimoto, H., additional, Koizumi, K., additional, Matsukawa, M., additional, Matsukawa, T., additional, Neyatani, Y., additional, Ninomiya, H., additional, Nishitani, T., additional, Seki, S., additional, Takatsu, H., additional, and Yamamoto, M., additional

Published
1989
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131. Overview of neutron and confined/escaping alpha diagnostics planned for ITER

Author

Sasao, M., Krasilnikov, A.V., Nishitani, T., Batistoni, P., Zaveryaev, V., Kaschuck, Y.A., Popovichev, S., Iguchi, T., Jarvis, O.N., Kallne, J., Fiore, C.L., Roquemore, L., Heidbrink, W.W., Donne, A.J. H., Costley, A.E., and Walker, C.

Subjects
Physics::Plasma Physics, Astrophysics::High Energy Astrophysical Phenomena
Abstract

Fusion product measurements planned for ITER are reviewed from the viewpoint of alpha particle-related physics studies. Recent advances in fusion plasma physics have extended the desirable measurement requirements to the megahertz region for neutron emission rate, better resolution of neutron profiles for the study of internal transport barriers (ITBs), etc. Employing threshold counters and/or scintillation detectors confers megahertz capability on neutron emission rate measurement. The changes in the neutron/alpha particle birth profile due to the formation of ITB and its deviation from uniformity on the magnetic flux surface can be measured by addition of eight viewing chords in an equatorial port plug and seven viewing chords from the divertor to the original radial neutron camera. On the other hand, it is still difficult to measure the distributions of confined and escaping alpha particles. Several proposals to resolve these difficulties are currently under investigation.

Published
2004

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