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2. Appendix

Author

Basov, N. G., Krokhin, O. N., Kriukov, P. G., Zakharov, S. D., Senatsky, Yu. V., Tchekalin, S. V., Linlor, William L., Papoular, Renaud, Alcock, A. J., Siller, G., Büchl, K., Hora, H., Dawson, John M., Mulser, Peter, Wilhelm, Hannelore, DuBois, Donald F., Lindl, John D., Kaw, Predhiman K., Chen, Francis F., Nuckolls, John H., Lengyel, L. L., Clarke, J. S., Fisher, H. N., Mason, R. J., Floux, F., Cognard, D., Denoeud, L-G., Piar, G., Parisot, D., Bobin, J. L., Delobeau, F., Fauquignon, C., Sklizkov, G. V., Ivanov, Yu. S., Mikhailov, Yu. A., Fedotov, S. I., Yamanaka, C., Yamanaka, T., Sasaki, T., Yoshida, K., Waki, M., Kang, H. B., McCall, G. H., Young, F., Ehler, A. W., Kephart, J. F., Godwin, R. P., Goldman, L. M., Soures, J., Lubin, M. J., Shearer, J. W., Garrison, J., Wong, J., Swain, J. E., Hora, Heinrich, and Ksander, Yuri, editor

Published
1975
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12. Pellet Injection into ASDEX Upgrade Plasmas

Author

Lang, P. T., Zohm, H., Büchl, K., Fuchs, J. C., Gehre, O., Gruber, O., Lang, R. S., Mertens, V., Neuhauser, J., Salzmann, H., ASDEX Upgrade Team, and NBI Team

Published
1996

14. Pellet Injection into ASDEX Upgrade Plasmas

Author

Lang, P., Zohm, H., Büchl, K., Fuchs, J., Gehre, O., Gruber, O., Lang, R., Mertens, V., Neuhauser, J., Salzmann, H., ASDEX Upgrade Team, and NBI Team

Published
1996

15. High Density Operation in Ausxiliary Heated ASDEX Upgrade Discharges

Author

Mertens, V., Lang, P., Büchl, K., Dux, R., Fuchs, J., Gruber, O., Haas, G., Kallenbach, A., Kaufmann, M., Lang, R., Mast, K., Müller, H., Neu, R., Neuhauser, J., Ryter, F., Salzmann, H., Schweinzer, J., Suttrop, W., Weinlich, M., Zohm, H., ASDEX-Upgrade Team, and NI-Team

Published
1996

16. H-mode discharges with feedback-controlled radiative boundary in the ASDEX Upgrade tokamak

Author

Kallenbach, A., Dux, R., Mertens, V., Gruber, O., Haas, G., Kaufmann, M., Poschenrieder, W., Ryter, F., Zohm, H., Alexander, M., Behringer, K., Bessenrodt-Weberpals, M., Bosch, H., Büchl, K., Field, A., Fuchs, J., Gehre, O., Herrmann, A., Köppendörfer, W., Lackner, K., Mast, F., Neu, G., Neuhauser, J., de Pena-Hempel, S., Raupp, G., Schönmann, K., Stäbler, A., Steuer, K., Vollmer, O., Weinlich, M., West, W., Zehetbauer, T., and ASDEX Upgrade Team

Published
1995

17. Charge Exchange Fluxes of Ripple Trapped Slowing-Down Ions During L-to-H Transition and ELMs

Author

Herrmann, W., Fahrbach, H.-U., Kaufmann, M., Lackner, K., Ryter, F., Zohm, H., Albrecht, M., Alexander, M., Asmussen, K., Behler, K., Behringer, K., Bessenrodt-Weberpals, M., Bosch, H.-S., Büchl, K., Carlson, A., Coster, D., de Blank, H. J., Drube, R., Dux, R., Engelhardt, W., Gehre, O., Gernhardt, J., Gruber, O., Haas, G., Herrmann, A., Hirsch, S., Ignacz, P., Jüttner, B., Junker, W., Kallenbach, A., Kass, T., Köppendörfer, W., Kurzan, B., Lang, P. T., Lang, R. S., Laux, M., Maraschek, M., Mast, K.-F., Mayer, H.-M., Meisel, D., Merkel, R., Mertens, V., Murmann, H., Napiontek, B., Naujoks, D., Neu, G., Neu, R., Neuhauser, J., Noterdaeme, J.-M., Pautasso, G., de Pena Hempel, S., Poschenrieder, W., Raupp, G., Richter, H., Röhr, H., Salzmann, H., Sandmann, W., Schilling, H.-B., Schittenhelm, M., Schneider, R., Schneider, W., Schönmann, K., Schramm, G., Seidel, U., Sokoll, M., Speth, E., Stäbler, A., Steuer, K.-H., Stober, J., Streibl, B., Suttrop, W., Treutterer, W., Troppmann, M., Ulrich, M., Vernickel, H., Vollmer, O., Wedler, H., Weinlich, M., Wenzel, U., Wesner, F., Wunderlich, R., Zasche, D., and Zehrfeld, H.-P.

Published
1995

21. Overview of ASDEX Upgrade results

Author

Gruber, O., primary, Arslanbekov, R., additional, Atanasiu, C., additional, Bard, A., additional, Becker, G., additional, Becker, W., additional, Beckmann, M., additional, Behler, K., additional, Behringer, K., additional, Bergmann, A., additional, Bilato, R., additional, Bolshukin, D., additional, Borrass, K., additional, Bosch, H.-S., additional, Braams, B., additional, Brambilla, M., additional, Brandenburg, R., additional, Braun, F., additional, Brinkschulte, H., additional, Brückner, R., additional, Brüsehaber, B., additional, Büchl, K., additional, Buhler, A., additional, Bürbaumer, H., additional, Carlson, A., additional, Ciric, M., additional, Conway, G., additional, Coster, D.P., additional, Dorn, C., additional, Drube, R., additional, Dux, R., additional, Egorov, S., additional, Engelhardt, W., additional, Fahrbach, H.-U., additional, Fantz, U., additional, Faugel, H., additional, Foley, M., additional, Franzen, P., additional, Fu, P., additional, Fuchs, J.C., additional, Gafert, J., additional, Gantenbein, G., additional, Gehre, O., additional, Geier, A., additional, Gernhardt, J., additional, Gubanka, E., additional, Gude, A., additional, Günter, S., additional, Haas, G., additional, Hartmann, D., additional, Heinemann, B., additional, Herrmann, A., additional, Hobirk, J., additional, Hofmeister, F., additional, Hohenöcker, H., additional, Horton, L., additional, Hu, L., additional, Jacobi, D., additional, Jakobi, M., additional, Jenko, F., additional, Kallenbach, A., additional, Kardaun, O., additional, Kaufmann, M., additional, Kendl, A., additional, Kim, J.-W., additional, Kirov, K., additional, Kochergov, R., additional, Kollotzek, H., additional, Kraus, W., additional, Krieger, K., additional, Kurzan, B., additional, Kyriakakis, G., additional, Lackner, K., additional, Lang, P.T., additional, Lang, R.S., additional, Laux, M., additional, Lengyel, L., additional, Leuterer, F., additional, Lorenz, A., additional, Maier, H., additional, Mank, K., additional, Manso, M.-E., additional, Maraschek, M., additional, Mast, K.-F., additional, McCarthy, P.J., additional, Meisel, D., additional, Meister, H., additional, Meo, F., additional, Merkel, R., additional, Mertens, V., additional, Meskat, J.P., additional, Monk, R., additional, Müller, H.W., additional, Münich, M., additional, Murmann, H., additional, Neu, G., additional, Neu, R., additional, Neuhauser, J., additional, Noterdaeme, J.-M., additional, Nunes, I., additional, Pautasso, G., additional, Peeters, A.G., additional, Pereverzev, G., additional, Pinches, S., additional, Poli, E., additional, Pugno, R., additional, Raupp, G., additional, Ribeiro, T., additional, Riedl, R., additional, Riondato, S., additional, Rohde, V., additional, Röhr, H., additional, Roth, J., additional, Ryter, F., additional, Salzmann, H., additional, Sandmann, W., additional, Sarelma, S., additional, Schade, S., additional, Schilling, H.-B., additional, Schlögl, D., additional, Schmidtmann, K., additional, Schneider, R., additional, Schneider, W., additional, Schramm, G., additional, Schweinzer, J., additional, Schweizer, S., additional, Scott, B.D., additional, Seidel, U., additional, Serra, F., additional, Sesnic, S., additional, Sihler, C., additional, Silva, A., additional, Sips, A., additional, Speth, E., additional, Stäbler, A., additional, Steuer, K.-H., additional, Stober, J., additional, Streibl, B., additional, Strumberger, E., additional, Suttrop, W., additional, Tabasso, A., additional, Tanga, A., additional, Tardini, G., additional, Tichmann, C., additional, Treutterer, W., additional, Troppmann, M., additional, Tsois, N., additional, Ullrich, W., additional, Ulrich, M., additional, Varela, P., additional, Vollmer, O., additional, Wenzel, U., additional, Wesner, F., additional, Wolf, R., additional, Wolfrum, E., additional, Wunderlich, R., additional, Xantopoulos, N., additional, Yu, Q., additional, Zarrabian, M., additional, Zasche, D., additional, Zehetbauer, T., additional, Zehrfeld, H.-P., additional, Zeiler, A., additional, and Zohm, H., additional

Published
2001
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22. Overview of ASDEX Upgrade results

Author

Gruber, O, primary, Bosch, H.-S, additional, Günter, S, additional, Herrmann, A, additional, Kallenbach, A, additional, Kaufmann, M, additional, Krieger, K, additional, Lackner, K, additional, Mertens, V, additional, Neu, R, additional, Ryter, F, additional, Schweinzer, J, additional, Stäbler, A, additional, Suttrop, W, additional, Wolf, R, additional, Asmussen, K, additional, Bard, A, additional, Becker, G, additional, Behler, K, additional, Behringer, K, additional, Bergmann, A, additional, Bessenrodt-Weberpals, M, additional, Borrass, K, additional, Braams, B, additional, Brambilla, M, additional, Brandenburg, R, additional, Braun, F, additional, Brinkschulte, H, additional, Brückner, R, additional, Brüsehaber, B, additional, Büchl, K, additional, Buhler, A, additional, Callaghan, H.P, additional, Carlson, A, additional, Coster, D.P, additional, Cupido, L, additional, Hempel, S. de Peña, additional, Dorn, C, additional, Drube, R, additional, Dux, R, additional, Egorov, S, additional, Engelhardt, W, additional, Fahrbach, H.-U, additional, Fantz, U, additional, Feist, H.-U, additional, Franzen, P, additional, Fuchs, J.C, additional, Fussmann, G, additional, Gafert, J, additional, Gantenbein, G, additional, Gehre, O, additional, Geier, A, additional, Gernhardt, J, additional, Gubanka, E, additional, Gude, A, additional, Haas, G, additional, Hallatschek, K, additional, Hartmann, D, additional, Heinemann, B, additional, Herppich, G, additional, Herrmann, W, additional, Hofmeister, F, additional, Holzhauer, E, additional, Jacobi, D, additional, Kakoulidis, M, additional, Karakatsanis, N, additional, Kardaun, O, additional, Khutoretski, A, additional, Kollotzek, H, additional, Kötterl, S, additional, Kraus, W, additional, Kurzan, B, additional, Kyriakakis, G, additional, Lang, P.T, additional, Lang, R.S, additional, Laux, M, additional, Lengyel, L.L, additional, Leuterer, F, additional, Lorenz, A, additional, Maier, H, additional, Manso, M, additional, Maraschek, M, additional, Markoulaki, M, additional, Mast, K.-F, additional, McCarthy, P.J, additional, Meisel, D, additional, Meister, H, additional, Merkel, R, additional, Meskat, J.P, additional, Müller, H.W, additional, Münich, M, additional, Murmann, H, additional, Napiontek, B, additional, Neu, G, additional, Neuhauser, J, additional, Niethammer, M, additional, Noterdaeme, J.-M, additional, Pautasso, G, additional, Peeters, A.G, additional, Pereverzev, G, additional, Pinches, S, additional, Raupp, G, additional, Reinmüller, K, additional, Riedl, R, additional, Rohde, V, additional, Röhr, H, additional, Roth, J, additional, Salzmann, H, additional, Sandmann, W, additional, Schilling, H.-B, additional, Schlögl, D, additional, Schmidtmann, K, additional, Schneider, H, additional, Schneider, R, additional, Schneider, W, additional, Schramm, G, additional, Schweizer, S, additional, Schwörer, R.R, additional, Scott, B.D, additional, Seidel, U, additional, Serra, F, additional, Sesnic, S, additional, Sihler, C, additional, Silva, A, additional, Speth, E, additional, Steuer, K.-H, additional, Stober, J, additional, Streibl, B, additional, Thoma, A, additional, Treutterer, W, additional, Troppmann, M, additional, Tsois, N, additional, Ullrich, W, additional, Ulrich, M, additional, Varela, P, additional, Verbeek, H, additional, Vollmer, O, additional, Wedler, H, additional, Weinlich, M, additional, Wenzel, U, additional, Wesner, F, additional, Wunderlich, R, additional, Xantopoulos, N, additional, Yu, Q, additional, Zasche, D, additional, Zehetbauer, T, additional, Zehrfeld, H.-P, additional, Zohm, H, additional, and Zouhar, M, additional

Published
1999
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24. Divertor tokamak operation at high densities on ASDEX Upgrade

Author

Gruber, O, primary, Mertens, V, additional, Neuhauser, J, additional, Ryter, F, additional, Suttrop, W, additional, Albrecht, M, additional, Alexander, M, additional, Asmussen, K, additional, Becker, G, additional, Behler, K, additional, Behringer, K, additional, Bergmann, A, additional, Bessenrodt-Weberpals, M, additional, Borras, K, additional, Bosch, H-S, additional, Braams, B, additional, Brambilla, M, additional, Braun, F, additional, Brinkschulte, H, additional, Büchl, K, additional, Buhler, A, additional, Carlson, A, additional, Chodura, R, additional, Coster, D, additional, Cupido, L, additional, Blank, H J De, additional, Hempel, S De Pena, additional, Deschka, S, additional, Dorn, C, additional, Drube, R, additional, Dux, R, additional, Engelhardt, W, additional, Engstler, J, additional, Fahrbach, H-U, additional, Feist, H-U, additional, Fiedler, S, additional, Franzen, P, additional, Fuchs, J C, additional, Fussmann, G, additional, Gafert, J, additional, Gehre, O, additional, Gernhardt, J, additional, Günter, S, additional, Haas, G, additional, Hallatschek, K, additional, Hartmann, J, additional, Heinemann, B, additional, Herppich, G, additional, Herrmann, A, additional, Herrmann, W, additional, Hirsch, S, additional, Hoek, M, additional, Hoenen, F, additional, Hofmeister, F, additional, Hohenoecker, H, additional, Holzhauer, E, additional, Ignacz, P, additional, Jacobi, D, additional, Junker, W, additional, Kakoulidis, M, additional, Kallenbach, A, additional, Karakatsanis, N, additional, Kardaun, O, additional, Kass, T, additional, Kaufmann, M, additional, Khutoretski, A, additional, Kollotzek, H, additional, Koeppendoerfer, W, additional, Kraus, W, additional, Krieger, K, additional, Kurzan, B, additional, Kyriakakis, G, additional, Lackner, K, additional, Lang, P T, additional, Lang, R S, additional, Laux, M, additional, Lengyel, L, additional, Leuterer, F, additional, Maraschek, M, additional, Markoulaki, M, additional, Mast, K-F, additional, McCarthy, P, additional, Meisel, D, additional, Meister, H, additional, Merkel, R, additional, Mueller, H W, additional, Muenich, M, additional, Murmann, H, additional, Napiontek, B, additional, Neu, G, additional, Neu, R, additional, Niethammer, M, additional, Noterdaeme, J-M, additional, Pasch, E, additional, Pautasso, G, additional, Peeters, A G, additional, Pereverzev, G, additional, Pitcher, C S, additional, Poschenrieder, W, additional, Raupp, G, additional, Reinmueller, K, additional, Riedl, R, additional, Rohde, V, additional, Roehr, H, additional, Roth, J, additional, Salzmann, H, additional, Sandmann, W, additional, Schilling, H-B, additional, Schittenhelm, M, additional, Schloegl, D, additional, Schneider, H, additional, Schneider, R, additional, Schneider, W, additional, Schramm, G, additional, Schweinzer, J, additional, Schweizer, S, additional, Schwoerer, R, additional, Scott, B D, additional, Seidel, U, additional, Serra, F, additional, Sesnic, S, additional, Silva, A, additional, Sokoll, M, additional, Speth, E, additional, Staebler, A, additional, Steuer, K-H, additional, Stober, J, additional, Streibl, B, additional, Thoma, A, additional, Treutterer, W, additional, Troppmann, M, additional, Tsois, N, additional, Ulrich, M, additional, Varela, P, additional, Verbeek, H, additional, Vollmer, O, additional, Wedler, H, additional, Weinlich, M, additional, Wenzel, U, additional, Wesner, F, additional, Wolf, R, additional, Wunderlich, R, additional, Xantopoulus, N, additional, Yu, Q, additional, Zasche, D, additional, Zehetbauer, T, additional, Zehrfeld, H-P, additional, Zohm, H, additional, and Zouhar, M, additional

Published
1997
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26. Pellet fuelling of ELMy H mode discharges on ASDEX upgrade

Author

Lang, P.T, primary, Zohm, H, additional, Büchl, K, additional, Fuchs, J.C, additional, Gehre, O, additional, Gruber, O, additional, Mertens, V, additional, Müller, H.W, additional, Neuhauser, J, additional, Team, ASDEX Upgrade, additional, and Team, NBI, additional

Published
1997
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27. The tungsten divertor experiment at ASDEX Upgrade

Author

Neu, R, primary, Asmussen, K, additional, Krieger, K, additional, Thoma, A, additional, Bosch, H-S, additional, Deschka, S, additional, Dux, R, additional, Engelhardt, W, additional, García-Rosales, C, additional, Gruber, O, additional, Herrmann, A, additional, Kallenbach, A, additional, Kaufmann, M, additional, Mertens, V, additional, Ryter, F, additional, Rohde, V, additional, Roth, J, additional, Sokoll, M, additional, Stäbler, A, additional, Suttrop, W, additional, Weinlich, M, additional, Zohm, H, additional, Alexander, M, additional, Becker, G, additional, Behler, K, additional, Behringer, K, additional, Behrisch, R, additional, Bergmann, A, additional, Bessenrodt-Weberpals, M, additional, Brambilla, M, additional, Brinkschulte, H, additional, Büchl, K, additional, Carlson, A, additional, Chodura, R, additional, Coster, D, additional, Cupido, L, additional, Blank, H J de, additional, Hempel, S de Peña, additional, Drube, R, additional, Fahrbach, H-U, additional, Feist, J-H, additional, Feneberg, W, additional, Fiedler, S, additional, Franzen, P, additional, Fuchs, J C, additional, Fußmann, G, additional, Gafert, J, additional, Gehre, O, additional, Gernhardt, J, additional, Haas, G, additional, Herppich, G, additional, Herrmann, W, additional, Hirsch, S, additional, Hoek, M, additional, Hoenen, F, additional, Hofmeister, F, additional, Hohenöcker, H, additional, Jacobi, D, additional, Junker, W, additional, Kardaun, O, additional, Kass, T, additional, Kollotzek, H, additional, Köppendörfer, W, additional, Kurzan, B, additional, Lackner, K, additional, Lang, P T, additional, Lang, R S, additional, Laux, M, additional, Lengyel, L L, additional, Leuterer, F, additional, Manso, M E, additional, Maraschek, M, additional, Mast, K-F, additional, McCarthy, P, additional, Meisel, D, additional, Merkel, R, additional, Müller, H W, additional, Münich, M, additional, Murmann, H, additional, Napiontek, B, additional, Neu, G, additional, Neuhauser, J, additional, Niethammer, M, additional, Noterdaeme, J-M, additional, Pasch, E, additional, Pautasso, G, additional, Peeters, A G, additional, Pereverzev, G, additional, Pitcher, C S, additional, Poschenrieder, W, additional, Raupp, G, additional, Reinmüller, K, additional, Riedl, R, additional, Röhr, H, additional, Salzmann, H, additional, Sandmann, W, additional, Schilling, H-B, additional, Schlögl, D, additional, Schneider, H, additional, Schneider, R, additional, Schneider, W, additional, Schramm, G, additional, Schweinzer, J, additional, Scott, B D, additional, Seidel, U, additional, Serra, F, additional, Speth, E, additional, Silva, A, additional, Steuer, K-H, additional, Stober, J, additional, Streibl, B, additional, Treutterer, W, additional, Troppmann, M, additional, Tsois, N, additional, Ulrich, M, additional, Varela, P, additional, Verbeek, H, additional, Verplancke, Ph, additional, Vollmer, O, additional, Wedler, H, additional, Wenzel, U, additional, Wesner, F, additional, Wolf, R, additional, Wunderlich, R, additional, Zasche, D, additional, Zehetbauer, T, additional, and Zehrfeld, H-P, additional

Published
1996
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29. Observation of Continuous Divertor Detachment inH-Mode Discharges in ASDEX Upgrade

Author

Gruber, O., primary, Kallenbach, A., additional, Kaufmann, M., additional, Lackner, K., additional, Mertens, V., additional, Neuhauser, J., additional, Ryter, F., additional, Zohm, H., additional, Bessenrodt-Weberpals, M., additional, Büchl, K., additional, Fiedler, S., additional, Field, A., additional, Fuchs, Ch., additional, Garcia-Rosales, C., additional, Haas, G., additional, Herrmann, A., additional, Herrmann, W., additional, Hirsch, S., additional, Köppendörfer, W., additional, Lang, P., additional, Lieder, G., additional, Mast, K.-F., additional, Pitcher, C. S., additional, Schittenhelm, M., additional, Stober, J., additional, Suttrop, W., additional, Troppmann, M., additional, Weinlich, M., additional, Albrecht, M., additional, Alexander, M., additional, Asmussen, K., additional, Ballico, M., additional, Behler, K., additional, Behringer, K., additional, Bosch, H. S., additional, Brambilla, M., additional, Carlson, A., additional, Coster, D., additional, Cupido, L., additional, DeBlank, H. J., additional, De Pena Hempel, S., additional, Deschka, S., additional, Dorn, C., additional, Drube, R., additional, Dux, R., additional, Eberhagen, A., additional, Engelhardt, W., additional, Fahrbach, H.-U., additional, Feist, H.-U., additional, Fieg, D., additional, Fußmann, G., additional, Gehre, O., additional, Gernhardt, J., additional, Ignacz, P., additional, Jüttner, B., additional, Junker, W., additional, Kass, T., additional, Kiemer, K., additional, Kollotzek, H., additional, Kornherr, M., additional, Krieger, K., additional, Kurzan, B., additional, Lang, R., additional, Laux, M., additional, Manso, M. E., additional, Maraschek, M., additional, Mayer, H.-M., additional, McCarthy, P., additional, Meisel, D., additional, Merkel, R., additional, Murmann, H., additional, Napiontek, B., additional, Naujoks, D., additional, Neu, G., additional, Neu, R., additional, Noterdaeme, J.-M., additional, Pautasso, G., additional, Poschenrieder, W., additional, Raupp, G., additional, Richter, H., additional, Richter, T., additional, Röhr, H., additional, Roth, J., additional, Salmon, N., additional, Salzmann, H., additional, Sandmann, W., additional, Schilling, H.-B., additional, Schneider, H., additional, Schneider, R., additional, Schneider, W., additional, Schönmann, K., additional, Schramm, G., additional, Schumacher, U., additional, Schweinzer, J., additional, Seidel, U., additional, Serra, F., additional, Silva, A., additional, Sokoll, M., additional, Speth, E., additional, Stäbler, A., additional, Steuer, K.-H., additional, Streibl, B., additional, Treutterer, W., additional, Ulrich, M., additional, Varela, P., additional, Vernickel, H., additional, Vollmer, O., additional, Wedler, H., additional, Wenzel, U., additional, Wesner, F., additional, Wunderlich, R., additional, Zasche, D., additional, and Zehrfeld, H. P., additional

Published
1995
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32. Pellet injection on the ZT-40M reversed field pinch.

Author

Watt, R. G., Wurden, G. A., Weber, P. G., Büchl, K., and Spanos, E. K.

Subjects
REVERSED field pinches, INERTIAL confinement fusion, TOKAMAKS
Abstract

The four barrel pneumatic pellet injector originally used on the Alcator C tokamak at MIT has been reconfigured for use on the ZT-40M reversed field pinch (RFP) at Los Alamos National Laboratory. The lower temperature and density in this device require operation at velocities significantly lower than on Alcator. Allowing a 2-s warmup prior to firing the injector has enabled operation with pressures as low as 40 psig and velocities ranging as low as 200 m/s with H2 pellets, without major cryostat modification. Initial injection experiments in the ZT-40M plasma have verified that pellet refueling is effective for density control, but the net particle inventory increase is less than might be expected based on simple models. Indications of nonoptimal penetration and curvature of the pellet trajectory, in addition to comparable time scales for particle confinement and pellet transit, may account for this. [ABSTRACT FROM AUTHOR]

Published
1987
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33. Quasi-stationary pellet fuelled Ohmic discharges with medium density in ASDEX

Author

Vlases, G., Gruber, O., Kaufmann, M., Büchl, K., Haas, G., Jilge, W., Lang, R.S., Mertens, V., and Sandmann, W.

Abstract

Ohmically heated divertor discharges with gas fuelling and pellet fuelling without any gas puffing are compared. Central radiation prevents improvement of the density limit with this pellet injection mode. Strongly peaked density profiles are obtained, while the temperature profiles are only weakly broadened, compared with gas puffing. Transport analyses show that the deep penetration enhances convective energy transport, which is offset by reduced electron thermal conduction loss. The particle and energy transport can be described by the same .models for both fuelling modes. But only the electron thermal diffusivity, ?e, averaged over one pellet cycle, agrees with the scaling derived from steady state gas fuelled discharges, whereas a description in agreement with the 'temperature profile consistency' also depicts the time resolved ?eprofiles.

Published
1987
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34. Pellet injection with improved confinement in ASDEX

Author

Kaufmann, M., Büchl, K., Fussmann, G., Gehre, O., Grassie, K., Gruber, O., Haas, G., Janeschitz, G., Kornherr, M., Lackner, K., Lang, R.S., Mast, K.F., McCormick, K., Mertens, V., Neuhauser, J., Niedermeyer, H., Sandmann, W., Schneider, W., Zasche, D., Zehrfeld, H.-P., Pietrzyk, Z.A., and Vlases, G.

Abstract

Tokamak discharges with repetitive pellet fuelling were investigated in the ASDEX divertor device. The importance of sufficiently high divertor recycling for a high density at the separatrix and for successful density buildup in the bulk plasma was demonstrated. In contrast to low recycling discharges where no permanent improvement of the energy confinement time was achieved, in OH-heated discharges with high recycling an energy confinement time of 160 ms was reached, the normal value being 80 ms in the rollover region. The peaked density profiles in this case were accompanied by reduced or suppressed sawtooth activity and finally ended in a phase of strong central impurity accumulation. The particle transport was characterized by strong, non-classical inward drift, while the improved energy transport can be explained by the following alternatives: (la) a local model which assumes neo-Alcator ?efor the electrons and ?i= 3?neoclfor the ions in the gas puff cases, reducing to ?i= ?neoclfor the optimum pellet cases; (1b) the assumption ?i= ?neoclunder all conditions and an electron energy confinement worse than neo-Alcator in the rollover region in gas-puff-discharges; (2) a profile consistency picture where Te(a) determines the energy confinement. Low power, NI heated discharges with pellet fuelling behave like Ohmic discharges, while for high power in the L-mode no successful density buildup was possible, and ?Ewas not improved. The H-regime was extended from a density maximum e= 0.8 × 1020m-3without pellets to e= 1.2 × 1020m-3by the injection of pellets. In this case a density buildup takes place, but further density profile peaking could not be observed.

Published
1988
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35. Impurity transport studies in ASDEX by means of neon-seeded pellets

Author

Behringer, K.H. and Büchl, K.

Abstract

Neon-seeded deuterium pellets, containing 1% neon, were successfully produced and injected into ASDEX divertor discharges. The behaviour of the deposited neon ions was studied by VUV spectroscopy, using a special version of the ASDEX/JET impurity transport code for interpretation. The neutral neon source was tailored so as to resemble theoretical ablation curves. Estimates of time-scales for ionization and toroidal spreading of neon ions show that toroidal symmetry is established before ionization to Ne X takes place; however, the results for Ne VIII burnthrough must be treated with caution in a one-dimensional model. Some ionization and recombination rate coefficients were verified experimentally by investigation of the time delays between pellet entry and maximum line intensities, and of the low remaining level of Ne VIII radiation after its ionization peak. The anomalous neon diffusion coefficient was derived from the final decay of the Ne X line intensity, which was observed to be exponential, down to the 5% level. Below this level, recycling via the divertor chambers became important. A value of D ? 0.4 m2·s?1was found under the assumption of an associated drift velocity vD= ?2D r/a2; this is in good agreement with the results of other transport studies of ASDEX OH plasmas and similar values have been reported from other tokamaks. No apparent dependence of the diffusion coefficient on electron density was observed.

Published
1989
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36. Correlation of pellet penetration depths on ASDEX for Ohmic and auxiliary heated discharges

Author

Büchl, K., Vlases, G.C., Sandmann, W., and Lang, R.

Abstract

Penetration depths for frozen D2pellets into ASDEX ohmically and auxiliary heated discharges are reported for a wide range of plasma and pellet parameters. It is found that the data are well correlated by a single parameter (pellet diameter, pellet velocity, central electron density and temperature), which emerges from the neutral shielding model. The pellet depths, however, are systematically smaller than is expected from the model, implying a higher ablation rate in the outer plasma layers.

Published
1987
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37. Pellet refuelling of the ZT-40M reversed field pinch

Author

Wurden, G.A., Weber, P.G., Watt, R.G., Munson, C.P., Ingraham, J.C., Howell, R.B., Cayton, T.E., Büchl, K., and Nilles, E.J.

Abstract

The first pellet refuelling of a reversed field pinch has been successfully demonstrated in ZT-40M. By injecting a series of pellets, density increases of 600% have been observed, with no disruptions. Because of a coincidence of pellet transit time, Ohmic reheat time and particle confinement times (about 0.5 ms) a significant fraction of the plasma inventory 'leaks out' before pellet ablation is complete. Strong on-axis peaking of the density profile due to pellet fuelling is not typically observed; this is due to large poloidal and toroidal deflections observed in the pellet trajectory, beginning in the plasma edge. Asymmetric ablation of the pellet by a suprathermal electron population is suspected and simple modelling can account for the observed trajectories.

Published
1987
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38. Energiebestimmung der Stoßwelle eines laserinduzierten Gasdurchbruchs

Author

Hohla, K, Büchl, K, Wienecke, R, and Witkowski, S

Abstract

A gas breakdown was produced in the gases H2, N2, He, Ar and Xe with a 100 MW ruby laser in a pressure chamber, the gas pressure being varied from 200 Torr to 10 atm. A lense with a focal length of 16 mm was used for focusing the laser beam. The blastwave was observed using the shadow method. High-speed pictures and streak pictures of the blastwave were taken with an image converter camera. The shape of the blastwave was approximately spherical. The position of the shock-front was determined as a function of time by streak pictures and compared with Sakurai's theory for H2and N2for Mach numbers M ≧ 2 and for Xe, Ar and He for M ≧ 4. From the normalization parameter it is possible to determine the energy of the blastwave for various gases as a function of the pressure of the gases. In the gases He and H2pronounced rise of the blastwave energy was found with rising pressure. However, in the gases N2, Xe and Ar there exists a maximum in the blastwave energy at a pressure of approximately 1 atm. A preliminary explanation for this behaviour is given.

Published
1969
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39. MHD-Activities during pellet injection into ohmically and beam heated plasmas on ASDEX

Author

Kornherr, M., Gehre, O., Grassie, K., Klüber, O., Mertens, V., Becker, G., Bosch, H., Brocken, H., Büchl, K., Carlson, A., Eberhagen, A., Dodel, G., Fahrbach, H., Fußmann, G., Gernhardt, J., Gierke, G., Glock, E., Gruber, O., Haas, G., Herrmann, W., Hofmann, J., Izvozchikov, A., Holzhauer, E., Hübner, K., Janeschitz, G., Karger, F., Kaufmann, M., Lackner, K., Lang, R., Lenoci, M., Lisitano, G., Mast, F., Mayer, H., McCormick, K., Meisel, D., Mueller, E., Murmann, H., Neuhauser, J., Niedermeyer, H., Pietrzyk, A., Poschenrieder, W., Rapp, H., Riedler, H., Rudyj, A., Sandmann, W., Schneider, F., Setzensack, C., Siller, G., Speth, E., Söldner, F., Stäbler, A., Steinmetz, K., Steuer, K., Tsois, N., Ugniewski, S., Vollmer, O., Wagner, F., and Zasche, D.

Published
1987

41. Energy and particle transport in medium-density ASDEX pellet discharges

Author

Gruber, O., Jilge, W., Mertens, V., Vlases, G., Kaufmann, M., Lang, R., Sandmann, W., Büchl, K., Bosch, H., Brocken, H., Eberhagen, A., Fußmann, G., Gehre, O., Gernhardt, J., Gierke, G., Glock, E., Haas, G., Hofmann, J., Janeschitz, G., Karger, F., Keilhacker, M., Klüber, O., Kornherr, M., Lackner, K., Lenoci, M., Lisitano, G., Mast, F., Mayer, H., McCormick, K., Meisel, D., Mueller, E., Murmann, H., Niedermeyer, H., Poschenrieder, W., Rapp, H., Röhr, H., Ryter, F., Schneider, F., Setzensack, C., Siller, G., Smeulders, P., Söldner, F., Steuer, K., Wagner, F., and Zasche, D.

Published
1986

42. Pellet Ablation in the W VII-A Stellarator

Author

Büchl, K. P., A VII-A Team, Cattanei, G., Dorst, D., Elsner, A., Erckmann, V., Gasparino, U., Grieger, G., Grigull, P., Hacker, H., Hartfuß, H. J., Jäckel, H., Jaenicke, R., Junker, J., Kick, M., Kroiss, H., Kühner, G., Maaßberg, H., Mahn, C., Müller, G., Ohlendorf, W., Rau, F., Renner, H., Ringler, H., Sardei, F., Tutter, M., Weller, A., Wobig, H., Würsching, E., Zippe, M., NI Team, Freudenberger, K., Ott, W., Penningsfeld, F. P., Speth, E., ECRH Team, Kasparek, W., Müller, G. A., Schüller, P. G., Thumm, M., and Wilhelm, R.

Published
1986

43. Development of Diagnostics and Data Analysis on ASDEX in 1988

Author

Hofmann, J. V., Krieger, K., Fussmann, G., Janeschitz, G., Bosch, H.-S., Bätzner, R., Hübner, K., Ingrosso, L., van Calker, C., Robouch, B. V., Kucinski, J., Dodel, G., Holzhauer, E., Carlson, A., Lörcher, M., Haas, G., Steuer, K.-H., Siller, G., Söldner, F. X., Büchl, K., Grassie, K., Kardaun, O., Lackner, K., Martin, P., Pohl, D., Rang, U., Mertens, V., and Wurden, G. A.

Published
1989

44. Pellet Injectors for JET

Author

Andelfinger, C., Büchl, K., Lang, R. S., Schilling, H. B., and Ulrich, M.

Published
1981

46. Increase of the density limit in ASDEX by repetitive pellet injection

Author

Niedermeyer, H., Büchl, K., Kaufmann, M., Lang, R., Mertens, V., Sandmann, W., Vlases, G., Becker, G., Bosch, H., Brocken, H., Eberhagen, A., Fußmann, G., Gehre, O., Gernhardt, J., Gierke, G., Glock, E., Gruber, O., Haas, G., Hofmann, J., Izvozchikov, A., Janeschitz, G., Karger, F., Keilhacker, M., Klüber, O., Kornherr, M., Lackner, K., Lenoci, M., Lisitano, G., Mast, F., Mayer, H., McCormick, K., Meisel, D., Müller, E., Murmann, H., Pietrzyk, A., Poschenrieder, W., Rapp, H., Riedler, H., Röhr, H., Roth, J., Ryter, F., Schneider, F., Setzensack, C., Siller, G., Smeulders, P., Söldner, F., Speth, E., Steuer, K., Vollmer, O., Wagner, F., and Zasche, D.

Published
1986

49. Pellet Injection with Improved Confinement in ASDEX

Author

Mertens, V., Kaufmann, M., Büchl, K., Fußmann, G., Gehre, O., Graßie, K., Gruber, O., Haas, G., Janeschitz, G., Kornherr, M., Lackner, K., Lang, R., Mast, K., McCormick, K., Neuhauser, J., Niedermeyer, H., Sandmann, W., Zasche, D., Zehrfeld, H., and Pietrzyk, Z.

Published
1987

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