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

Dades bibliogràfiques
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
Matèries:
Accés en línia:http://dx.doi.org/10.1016/S0168-583X(00)00195-6
Format: xMaterials Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643847

MARC

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330 |a 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. 
333 |a Режим доступа: по договору с организацией-держателем ресурса 
461 |t Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms  |o Scientific Journal  |d 1984- 
463 |t Vol. 173, iss. 1-2 : Radiation from Relativistic Electrons in Periodic Structures  |v [P. 104-111]  |d 2001 
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701 0 |a Inoue  |b M. 
701 1 |a Takenaka  |b S. 
701 1 |a Endo  |b I. 
701 1 |a Yoshida  |b K. 
701 1 |a Takahashi  |b T. 
701 1 |a Iinuma  |b M. 
701 1 |a Bogdanov  |b A. V.  |c physicist  |c Senior Lecturer of Tomsk Polytechnic University  |f 1974-  |g Aleksey Viktorovich  |3 (RuTPU)RU\TPU\pers\34312  |9 17821 
701 1 |a Кольчужкин  |b А. М.  |c российский физик-ядерщик  |c профессор кафедры экспериментальной ядерной физики Томского политехнического университета  |f 1935-  |g Анатолий Михайлович  |3 (RuTPU)RU\TPU\pers\19798 
701 1 |a Potylitsyn  |b A. P.  |c Russian physicist  |c Professor of the TPU  |f 1945-  |g Alexander Petrovich  |3 (RuTPU)RU\TPU\pers\26306  |9 12068 
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