Experiment of positron generation using a crystal target at the KEK electron/positron linac; Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms; Vol. 173, iss. 1-2 : Radiation from Relativistic Electrons in Periodic Structures
| Parent link: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms: Scientific Journal.— , 1984- Vol. 173, iss. 1-2 : Radiation from Relativistic Electrons in Periodic Structures.— 2001.— [P. 104-111] |
|---|---|
| Altres autors: | Inoue M., Takenaka S., Endo I., Yoshida K., Takahashi T., Iinuma M., Bogdanov A. V. Aleksey Viktorovich, Кольчужкин А. М. Анатолий Михайлович, Potylitsyn A. P. Alexander Petrovich, Vnukov I. E., Okuno H., Anami S., Enomoto A., Furukawa K., Kamitani T., Ogawa Y., Ohsawa S. |
| Sumari: | Title screen We have performed an experiment of positron generation using a crystal target at an electron/positron linac at KEK. The target consists of a tungsten crystal to emit photons and an amorphous tungsten for pair creation, whose thicknesses are 0.5 and 2.0 radiation length, respectively. When the ?1 1 1? crystal axis is oriented parallel to the 3 GeV incident electron beam, the positron yield is enhanced by 40% compared to values for the disoriented crystal. No effect of injecting intense ultra-short electron bunches on the crystalline structure is observed. The crystal orientation dependence of the positron yield as well as the enhancement factor can be explained by a simulation assuming a coherent bremsstrahlung process of the electron in the crystal. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2001
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| Matèries: | |
| Accés en línia: | http://dx.doi.org/10.1016/S0168-583X(00)00195-6 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643847 |
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