SPACE-CHARGE DYNAMICS OF POLYMETHYLMETHACRYLATE UNDER ELECTRON-BEAM IRRADIATION

Authors
GONG H SONG ZG ONG CK
Citation
H. Gong et al., SPACE-CHARGE DYNAMICS OF POLYMETHYLMETHACRYLATE UNDER ELECTRON-BEAM IRRADIATION, Journal of physics. Condensed matter, 9(23), 1997, pp. 5027-5031
Citations number
35
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
9
Issue
23
Year of publication
1997
Pages
5027 - 5031
Database
ISI
SICI code
0953-8984(1997)9:23<5027:SDOPUE>2.0.ZU;2-L
Abstract
Space-charge dynamics of polymethylmethacrylate (PMMA) under electron beam irradiation has been investigated employing a scanning electron m icroscope. Assuming a Gaussian space-charge distribution, the distribu tion range (sigma) has been determined using a time-resolved current m ethod in conjunction with a mirror image method. sigma is found to inc rease with irradiation time and eventually attain a stationary value. These observations have been discussed by taking into account radiatio n-induced conductivity and charge mobility.