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Titolo:
Radiation effect on positronium formation in low-temperature polyethylene
Autore:
Suzuki, T; Ito, Y; Kondo, K; Hamada, E; Ito, Y;
Indirizzi:
High Energy Accelerator Res Org, KEK, Radiat Sci Ctr, Oho, Ibaraki 3050801, Japan High Energy Accelerator Res Org Oho Ibaraki Japan 3050801 3050801, Japan Grad Univ Adv Studies, KEK, High Energy Accelerator Res Org, Radiat Sci Ctr,Dept Accelerator Sci, Oho, Ibaraki 3050801, Japan Grad Univ Adv Studies Oho Ibaraki Japan 3050801 o, Ibaraki 3050801, Japan Univ Tokyo, Nucl Sci & Technol Res Ctr, Tokai, Ibaraki 3191106, Japan UnivTokyo Tokai Ibaraki Japan 3191106 Ctr, Tokai, Ibaraki 3191106, Japan
Titolo Testata:
RADIATION PHYSICS AND CHEMISTRY
fascicolo: 5-6, volume: 58, anno: 2000,
pagine: 485 - 489
SICI:
0969-806X(200006)58:5-6<485:REOPFI>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANNIHILATION; POLYPROPYLENE;
Keywords:
radiation effect; positronium; low temperature; polyethylene;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Suzuki, T High Energy Accelerator Res Org, KEK, Radiat Sci Ctr, Oho, Ibaraki 3050801, Japan High Energy Accelerator Res Org Oho Ibaraki Japan 3050801 Japan
Citazione:
T. Suzuki et al., "Radiation effect on positronium formation in low-temperature polyethylene", RADIAT PH C, 58(5-6), 2000, pp. 485-489

Abstract

The irradiation effect of gamma-rays on polyethylene (PE) has been studiedby positron annihilation lifetime spectroscopy (PALS). In the case of non-irradiated PE samples, at a low temperature below the glass-transition temperature, the intensity of the long-lived component of positronium, I-3, increases due to an increase in the concentration of trapped electrons. However, the increase in I-3 obtained in a few MGy gamma-irradiated samples became very small due to the effect of induced radicals. It has been observed that the trapped electrons were affected by the intensity of the positron sources used for a PALS experiment. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 04:29:51