Thermal imaging diagnostics of high-current electron beams

Thermal imaging diagnostics of high-current electron beams

Bibliographic Details
Parent link:Review of Scientific Instruments
Vol. 83, iss. 10.— 2012.— [103301 (6 p.)]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра техники и электрофизики высоких напряжений (ТЭВН)
Other Authors: Pushkarev A. I. Aleksandr Ivanovich, Kholodnaya G. E. Galina Evgenievna, Sazonov R. V. Roman Vladimirovich, Ponomarev D. V. Denis Vladimirovich
Summary:Title screen
The thermal imaging diagnostics of measuring pulsed electron beam energy density is presented. It provides control of the electron energy spectrum and a measure of the density distribution of the electron beam cross section, the spatial distribution of electrons with energies in the selected range, and the total energy of the electron beam. The diagnostics is based on the thermal imager registration of the imagingelectron beam thermal print in a material with low bulk density and low thermal conductivity. Testing of the thermal imaging diagnostics has been conducted on a pulsed electron accelerator TEU-500. The energy of the electrons was 300–500 keV, the density of the electron current was 0.1–0.4 kA/cm2, the duration of the pulse (at half-height) was 60 ns, and the energy in the pulse was up to 100 J. To register the thermal print, a thermal imager Fluke-Ti10 was used. Testing showed that the sensitivity of a typical thermal imager provides the registration of a pulsed electron beam heat pattern within one pulse with energy density over 0.1 J/cm2 (or with current density over 10 A/cm2, pulse duration of 60 ns and electron energy of 400 keV) with the spatial resolution of 0.9–1 mm. In contrast to the method of using radiosensitive (dosimetric) materials, thermal imaging diagnostics does not require either expensive consumables, or plenty of processing time.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2012
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:http://dx.doi.org/10.1063/1.4756689
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637513

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