Summary
A comparison was made between the ranges of artificially accelerated protons in Aluminium and in Ilford G5 photographic emulsion. The ranges in emulsion were obtained by direct measurements along the particle tracks, and those in Aluminium by an attenuation method. The ranges of protons of three different energies were 19.31, 13.23 and 7.82 g/cm2 in Aluminium, and 22.85, 15.58 and 9.50 g/cm2 in emulsion of density 3.791 g/cm3 conditioned to 58% relative humidity. The corresponding energies were 146.5 MeV, 117.9 MeV and 87.4 MeV. Assuming the range-energy relation for protons to be at present better determined for Aluminium than for photographic emulsion, this experiment provides new information concerning the relation between particle range and energy in nuclear emulsion.
Riassunto
Si è fatto un confronto fra i range di protoni artificialmente accelerati in alluminio e in emulsioni fotografiche Ilford G5. I range in emulsione furono ottenuti per misura diretta delle tracce delle particelle, quelli in alluminio con un metodo di attenuazione. I range dei protoni di tre differenti energie furono di 19.31, 13.23 e 7.82 g/cm2 in alluminio e di 22.85, 15.58 e 9.50 g/cm2 in emulsione di densità 3.791 g/cm3 condizionata a 58% di umidità relativa. Le corrispondenti energie erano 146.5 MeV, 117.9 MeV e 87.4 MeV. Assumendo che la relazione range-energia pei protoni sia attualmente meglio determinata per l’alluminio che per l’emulsione fotografica, il presente esperimento fornisce nuovi dati sulla relazione, nelle emulsioni nucleari, tra il range delle particelle e l’energia.
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References
H. Bradner, F. M. Smith, W. H. Barkas andA. S. Bishop:Phys. Rev.,77, 462 (1950).
W. K. H. Panofsky andF. L. Fillmore:Phys. Rev.,79, 57 (1950).
C. M. G. Lattes, P. Fowler andP. Cuer:Proc. Phys. Soc.,59, 883 (1947).
J. Rotblat:Nature,165, 387 (1950);167, 550 (1951).
J. Catala andW. Gibson:Nature,167, 551 (1950).
W. Gibson, D. Prowse andJ. Rotblat:Nature,173, 1180 (1954).
N. Nereson andF. Reines:Rev. Sci. Instr.,21, 534 (1950).
A. Oliver:Rev. Sci. Instr.,25, 326 (1954).
L. Vigneron:Journ. Phys. Rad.,14, 145 (1953).
H. Fay, K. Gottstein andK. Hain:Suppl. Nuovo Cimento,11, 234 (1954).
H. G. de Carvalho andJ. Friedman:Rev. Sci. Instr.,26, 261 (1955).
O. Heinz:Phys. Rev.,94, 1728 (1954).
W. Aron:U.C.R.L. Report, 1325 (1951).
W. H. Barkas, P. H. Barrett, P. Cuer, H. H. Heckman, F. M. Smith andH. K. Ticho:U.C.R.L. Report, 3254 (1956), alsoPhys. Rev.,102 583 (1956).
G. Baroni, C. Castagnoli, G. Cortini, C. Franzinetti andA. Manfredini:C.E.R.N., B.S., 9 (1954).
D. O. Caldwell:Phys. Rev.,100, 291 (1955).
A. E. Taylor andE. Wood: in course of publication (1956).
D. Lal, Yash Pal andB. Peters:Proc. Ind. Acad. Sci.,38, 398 (1953).
W. H. Barkas:U.C.R.L. Report, 2579 (1954).
N. Bloembergen andP. J. van Heerden:Phys. Rev.,83, 561 (1951).
P. H. Fowler andM. Scharff: in course of publication (1956).
R. Sternheimer:Phys. Rev.,88, 851 (1952).
D. C. Sachs andJ. R. Richardson:Phys. Rev.,89, 1165 (1953).
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Friedlander, M.W., Keefe, D. & Menon, M.G.K. The range in G5 nuclear emulsion of protons with energies 87, 118 and 146 MeV. Nuovo Cim 5, 461–472 (1957). https://doi.org/10.1007/BF02855252
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DOI: https://doi.org/10.1007/BF02855252