Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
STM observation of damage on HOPG induced by energetic ions escaped from thick botanic samples
Autore:
Liu, F; Wang, YG; Xue, JM; Wang, SX; Yan, S; Zhao, WJ;
Indirizzi:
Peking Univ, Inst Heavy Ion Phys, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 ijing 100871, Peoples R China
Titolo Testata:
PHYSICS LETTERS A
fascicolo: 5-6, volume: 283, anno: 2001,
pagine: 360 - 367
SICI:
0375-9601(20010521)283:5-6<360:SOODOH>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Keywords:
low-energy ion irradiation; botanic slice; transmission; STM observation; HOPG;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, YG Peking Univ, Inst Heavy Ion Phys, Beijing 100871, Peoples R ChinaPeking Univ Beijing Peoples R China 100871 871, Peoples R China
Citazione:
F. Liu et al., "STM observation of damage on HOPG induced by energetic ions escaped from thick botanic samples", PHYS LETT A, 283(5-6), 2001, pp. 360-367

Abstract

The target samples of 30-100 mum thick slices of kidney bean dry seeds and8 and 72 mum ethylene terephthalate (PET) films were irradiated by 40 keV N+ ion beam. The current density was 8 muA/cm(2) and the fluency was in therange of 0.3-3 x 10(17) ions/cm(2). During ion irradiation, highly oriented pyrolytic graphite (HOPG) samples were placed behind the target samples to receive energetic ions. After irradiation, through scanning tunneling microscope (STM) observation, statistic number density of protrusion-like damage on HOPG surfaces have been obtained. The experimental results show that for 30 and 50 mum thick botanic slice samples, the number densities are 1.0-5.0 x 10(11) and 0.6-2 x 10(10)/cm(2), respectively. It demonstrates that 40 keV N+ ion irradiation can cause evident damage at a depth of 50 mum in dry kidney bean seed slices. Before and after low-energy ion irradiation, transmission spectra of MeV proton with low fluency rate were applied to examine those botanic samples and study the possible escaping mechanism of theenergetic ions from them in the low-energy ion irradiation. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 22:33:32