Positronium formation reaction of trapped electrons and free positrons: Delayed formation studied by AMOC

Radiation Physics and Chemistry

Volumn 68, Issue 3-4, 2003, Pages 647-649

  Suzuki, N ^a   Hirade, T ^b   Saito, F ^c   Hyodo, T ^d  

^a KINKI UNIVERSITY   (Japan)

^b JAPAN ATOMIC ENERGY AGENCY   (Japan)

^c INST OF PHYS AND CHEMICAL RESEARCH   (Japan)

^d UNIVERSITY OF TOKYO   (Japan)

Author keywords

AMOC; Delayed Ps formation; Low temperature; Polyethylene; Polymer; Positron; Positronium; Trapped electrons

Indexed keywords

GAMMA RAYS; POSITRON ANNIHILATION SPECTROSCOPY;

TRAPPED ELECTRONS;

POSITRONS;

AGE MOMENTUM CORRELATION; ANALYTIC METHOD; CHEMICAL REACTION; CONFERENCE PAPER; ELECTRON; GAMMA RADIATION; LOW TEMPERATURE PROCEDURES; MEASUREMENT; MOLECULE; POSITRON; POSITRONIUM; REACTION ANALYSIS; SOLID; TIME;

EID: 0141720831     PISSN: 0969806X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0969-806X(03)00286-X     Document Type: Conference Paper

References (11)

1. Brusa R.S., Duarte Naia M., Margoni D., Zecca A. Positron mobility in polyethylene in the 60-400. K temperature range Appl. Phys. A. 60:1995;447-453.
2. Chen Z.Q., Suzuki T., Uedono A., Tanigawa S., Ito Y. Temperature and irradiation effects on positronium formation in polycarbonate. Mater. Sci. Forum. 363-365:2001;297-299.
3. Eldrup M., Lightbody D., Sherwood J. Studies of phase transformation in molecular crystals using the positron annihilation technique. Faraday Discuss. 69:1980;175-182.
4. Hirade, T., Wang, C.L., Maurer, F.H.J., Eldrup, M., Pedersen, N.J., 1998. Visible light effect on positronium formation in PMMA at low temperatures. Abstract Book for the 35th Annual Meeting on Radioisotopes in the Physical Science and Industries, Tokyo, Japan, June 30-July 1, p. 89.
5. Hirade T., Maurer F.H.J., Eldrup M. Positronium formation at low temperatures. the role of trapped electrons Radiat. Phys. Chem. 58:2000;465-471.
6. Ito Y., Hirade T., Hamada E., Suzuki T., Ito Y. The effect of visible light irradiation on positronium formation in polyethylene at low temperature. Acta Phys. Pol. A. 95(4):1999;533-538.
7. Kindl P., Reiter G. Investigations on the low-temperature transitions and time effects of branched polyethylene by the positron lifetime technique. Phys. Stat. Sol. A. 104:1987;707-713.
8. Mogensen O.E. Spur reaction model of positronium formation. J. Chem. Phys. 60(3):1974;998-1004.
9. Stoll H., Koch M., Lauff U., Maier K., Major J., Schneider H., Seeger A., Siegle A. Annihilation of incompletely thermalized positronium studied by age-momentum correlation. Appl. Surf. Sci. 85:1995;17-21.
10. Suzuki N., Nagai Y., Hyodo T. Can a newly developed AMOC technique be applied to determine the para-positronium lifetime. Radiat. Phys. Chem. 58:2000;777-780.
11. Wang C.L., Hirade T., Maurer F.H.J., Eldrup M., Pedersen N.J. Free-volume distribution and positronium formation in amorphous polymers. temperature and positron-irradiation-time dependence J. Chem. Phys. 108(11):1998;4654-4661.