Abstract
The penetration of positrons from a22Na source into Ni foils sandwiched between different backscattering materials (Kapton, NaCl, Ni, and Mo) has been studied for the geometry commonly used in PAT experiments. Transmitted intensities and effective mass absorption coefficients have been found and the dependence on the backscattering material is discussed. General formulas for the effective mass absorption coefficients are derived. The large geometrical effects are stressed. Suggestions for source corrections are supplied.
Similar content being viewed by others
References
Positrons in Solids, ed. by P. Hautojärvi, Topics Current Phys.12 (Springer, Berlin, Heidelberg, New York 1979)
H.E. Hansen, B. Nielsen, K. Petersen: Radiat. Eff.77, 1 (1983)
H.E. Hansen, M. Eldrup, S. Linderoth, B. Nielsen, K. Petersen: InProc. 6th Intern. Conf. Pos. Ann., ed. by P.G. Coleman, S.C. Sharma, L.M. Diana (North-Holland, Amsterdam 1982) p. 432
H.E. Hansen, B. Nielsen, G. Trumpy, K. Petersen: In [Ref. 3, p. 435]
H.E. Hansen, S. Linderoth, W. Wierzchowski, K. Petersen: Appl. Phys. A27, 247 (1982)
B. Nielsen, A. van Veen, L.M. Caspers, H.A. Filius, H.E. Hansen, K. Petersen: In [Ref. 3, p. 438]
H.E. Hansen, K. Petersen: Phys. Stat. Sol. (a)69, 625 (1982)
L.E. Spanel, A.S. Rupaal, J.R. Patrick: Phys. Rev. B8, 4072 (1973)
M. Mourino, H. Löbl, R. Paulin: Phys. Lett.71A, 106 (1979)
M. Bertolaccini, L. Zappa: Nuovo Cimento52B, 487 (1967)
H.E. Hansen, S. Linderoth, K. Petersen: Appl. Phys. A29, 99 (1982)
R. Paulin: InProc. 5th Intern. Conf. Pos. Ann., ed. by R.R. Hasiguti, K. Fujiwara (Japan Inst. Met., Sendai 1979) p. 601; and in Proc. of the Intern. School of Phys. “Enrico-Fermi” onPositrons in Solids, ed. by W. Brandt, A. Dupasquier (Academic Press, New York 1982)
H.E. Hansen, U. Ingerslev-Jensen: In [Ref. 3 p. 702]
A. Bisi, G. Gambirini, L. Zappa: Nuovo Cimento53B, 428 (1979)
I.K. MacKenzie: In Proc. 2nd Intern. Conf. Pos. Ann., Kingston, Canada, 1971 (unpublished); and in Proc. of the Intern. School of Phys. “Enrico-Fermi” onPositrons in Solids, ed. by W. Brandt and A. Dupasquier (Academic Press, New York 1982)
I.K. MacKenzie, C.W. Schulte, T. Jackman, J.L. Campbell: Phys. Rev. A7, 135 (1973)
H.E. Hansen, U. Ingerslev-Jensen: J. Phys. D16, 1353 (1983)
A. Bisi, L. Braicovich: Nucl. Phys.58, 171 (1964)
S.R. Thontadarya, N. Umakantha: Phys. Rev. B4, 1632 (1971)
N. Ram, I.S.S. Rao, M.K. Mehta: Phys. Rev. A23, 1202 (1981)
P.U. Arifov, A.R. Grupper, H. Alimkulov: In [Ref. 3, p. 699]
H.-W. Thummel: Isotopenpraxis6, 214 and 254 (1970)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Linderoth, S., Hansen, H.E., Nielsen, B. et al. Positron transmission and effective mass absorption coefficient in nickel. Appl. Phys. A 33, 25–28 (1984). https://doi.org/10.1007/BF01197081
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01197081