Experimental study of positron production from a 2.55-mm-thick silicon crystal target using 8-GeV electron beams with high-bunch charges

Bibliographic Details
Parent link:Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.— , 2006
Vol. 252, iss. 1.— 2006.— P. 142-147
Other Authors: Suwada T., Furukawa K., Kamitani T., Satoh M., Sugimura T., Umemori K., Okuno H., Hamatsu R., Yoshida K., Potylitsyn A. P. Alexander Petrovich, Tropin I. S., Chehab R.
Summary:We have investigated quenching phenomena of channeling radiation through positron production from a silicon crystal hit by a single-bunch electron beam with high-bunch charge at the 8-GeV electron/positron injector linac. The crystal axis, 1 1 0, was aligned to the electron beam with a precise goniometer, and positrons produced in the forward direction with a momentum of 20 MeV/c were detected with a magnetic spectrometer. Positron yields were measured by varying the charge in a bunch with a typical bunch length of 10 ps from 0.1 nC to 2 nC. The corresponding instantaneous current density ranged from 0.15 × 104 to 1.2 × 104 A/cm2. The results show that, at these current densities, the positron yield is proportional to the bunch charge within the experimental accuracy, which implies that no non-linear phenomena are observed in channeling radiation.
В фонде НТБ ТПУ отсутствует
Published: 2006
Subjects:
Format: Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=595877

MARC

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200 1 |a Experimental study of positron production from a 2.55-mm-thick silicon crystal target using 8-GeV electron beams with high-bunch charges  |f T. Suwada [и др.] 
330 |a We have investigated quenching phenomena of channeling radiation through positron production from a silicon crystal hit by a single-bunch electron beam with high-bunch charge at the 8-GeV electron/positron injector linac. The crystal axis, 1 1 0, was aligned to the electron beam with a precise goniometer, and positrons produced in the forward direction with a momentum of 20 MeV/c were detected with a magnetic spectrometer. Positron yields were measured by varying the charge in a bunch with a typical bunch length of 10 ps from 0.1 nC to 2 nC. The corresponding instantaneous current density ranged from 0.15 × 104 to 1.2 × 104 A/cm2. The results show that, at these current densities, the positron yield is proportional to the bunch charge within the experimental accuracy, which implies that no non-linear phenomena are observed in channeling radiation. 
333 |a В фонде НТБ ТПУ отсутствует 
461 |t Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms  |d 2006 
463 |t Vol. 252, iss. 1  |v P. 142-147  |d 2006 
610 1 |a труды учёных ТПУ 
701 1 |a Suwada  |b T. 
701 1 |a Furukawa  |b K. 
701 1 |a Kamitani  |b T. 
701 1 |a Satoh  |b M. 
701 1 |a Sugimura  |b T. 
701 1 |a Umemori  |b K. 
701 1 |a Okuno  |b H. 
701 1 |a Hamatsu  |b R. 
701 1 |a Yoshida  |b K. 
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 
701 1 |a Tropin  |b I. S. 
701 1 |a Chehab  |b R. 
801 1 |a RU  |b 63413507  |c 20100624 
801 2 |a RU  |b 63413507  |c 20140128  |g RCR 
942 |c CR