Large enhancement of deuteron polarization with frequency modulated microwaves

B. Adeva, E. Arik, S. Ahmad, A. Arvidson, B. Badelek, M. K. Ballintijn, G. Bardin, G. Baum, P. Berglund, L. Betev, I. G. Bird, R. Birsa, P. Björkholm, B. E. Bonner, N. de Botton, M. Boutemeur, F. Bradamante, A. Bressan, A. Brüll, J. BuchananS. Bültmann, E. Burtin, C. Cavata, J. P. Chen, J. Clement, M. Clocchiatti, M. D. Corcoran, D. Crabb, J. Cranshaw, J. Çuhadar, S. Dalla Torre, A. Deshpande, R. van Dantzig, D. Day, S. Dhawan, C. Dulya, A. Dyring, S. Eichblatt, J. C. Faivre, D. Fasching, F. Feinstein, C. Fernandez, B. Frois, C. Garabatos, J. A. Garzon, T. Gaussiran, M. Giorgi, E. von Goeler, I. A. Golutvin, A. Gomez, G. Gracia, N. de Groot, M. Grosse Perdekamp, E. Gülmez, D. von Harrach, T. Hasegawa, P. Hautle, N. Hayashi, C. A. Heusch, N. Horikawa, VW Hughes, G. Igo, S. Ishimoto, T. Iwata, M. de Jong, E. M. Kabuß, T. Kageya, R. Kaiser, A. Karev, H. J. Kessler, T. J. Ketel, I. Kiryushin, A. Kishi, Y. Kisselev, L. Klostermann, D. Krämer, V. Krivokhijine, V. Kukhtin, J. Kyynäräinen, M. Lamanna, U. Landgraf, K. Lau, T. Layda, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, T. Lindqvist, M. Litmaath, S. Lopez-Ponte, M. Lowe, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, G. van Middelkoop, D. Miller, J. Mitchell, K. Mori, J. Moromisato, G. S. Mutchler, A. Nagaitsev, J. Nassalski, L. Naumann, B. Neganov, T. O. Niinikoski, J. E.J. Oberski, A. Ogawa, S. Okumi, C. S. Özben, A. Penzo, C. A. Perez, F. Perrot-Kunne, D. Peshekhonov, R. Piegaia, L. Pinsky, S. Platchkov, M. Plo, D. Pose, H. Postma, J. Pretz, T. Pussieux, J. Pyrlik, I. Reyhancan, J. M. Rieubland, A. Rijllart, J. B. Roberts, S. E. Rock, M. Rodriguez, E. Rondio, O. Rondon, L. Ropelewski, A. Rosado, I. Sabo, J. Saborido, G. Salvato, A. Sandacz, D. Sanders, I. Savin, P. Schiavon, K. P. Schüler, R. Segel, R. Seitz, Y. Semertzidis, S. Sergeev, F. Sever, P. Shanahan, E. Sichtermann, G. Smirnov, A. Staude, A. Steinmetz, H. Stuhrmann, K. M. Teichert, F. Tessarotto, W. Thiel, M. Velasco, J. Vogt, R. Voss, R. Weinstein, C. Whitten, R. Willumeit, R. Windmolders, W. Wislicki, A. Witzmann, A. Yañez, N. I. Zamiatin, A. M. Zanetti, J. Zhao

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liter polarized target using the method of dynamic nuclear polarization. This target was used during a deep inelastic polarized muon-deuteron scattering experiment at CERN. Measurements of the electron paramagnetic resonance absorption spectra show that frequency modulation gives rise to additional microwave absorption in the spectral wings. Although these results are not understood theoretically, they may provide a useful testing ground for the deeper understanding of dynamic nuclear polarization.

Original languageEnglish
Pages (from-to)339-343
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume372
Issue number3
DOIs
Publication statusPublished - 1 Apr 1996

Funding

* Corresponding author. Tel. + I 1I 767 6422. ’ Now at CERN, 121 I Geneva 23, Switzerland. ’ Now at University of Montreal, PQ. H3C 357, Montreal, Canada. ’ Now at Max Planck Institute, Heidelberg. Germany. 4 Permanent address: Miyazaki University, 88921 Miyazak-Shi, Japan. ’ Pemranent address: PSI, 8093 Villigen. Switzerland. ’ Permanent address: KEK. 305 Ibaraki-Ken. Japan. ’ Permanent address: University of Buenos Aires. Physics Department, ‘Now at DESY, Hamburg, 52. Germany. * Supported by Bundesministerium fur Bildung, Wissenschaft, Forschung ‘I’ Supported by the Department of Energy. ” Supported by the National Science Foundation, ” Supportedby Ishida Foundation. Mitsubishi Foundation and Monbusho International Science Research Program. ” Supportedb y the National Science Foundation of the Netherlands. I4 Supported by Comision Interministerial de Ciencia y Tec-nologia. ” Supported by the US-Israel Binational Science Foundation and The Israeli Academy of Sciences. ‘* Supported by KBN. ” Now at Technische Universitgt. Dresden. D-01062.

FundersFunder number
Bundesministerium fur Bildung, Wissenschaft, Forschung
Israeli Academy of Sciences
KBN
National Science Foundation
U.S. Department of Energy
United States-Israel Binational Science Foundation
Comisión Interministerial de Ciencia y Tecnología
Politechnika KoszalińskaD-01062

    Fingerprint

    Dive into the research topics of 'Large enhancement of deuteron polarization with frequency modulated microwaves'. Together they form a unique fingerprint.

    Cite this