Zobrazeno 1 - 10
of 24
pro vyhledávání: '"P. S. Nizin"'
Autor:
X. S. Chang, P. S. Nizin
Publikováno v:
Medical Physics. 18:744-748
It is shown that in narrow monoenergetic photon beams under conditions of lateral electron disequilibrium, primary absorbed dose {ital P}({ital r}) is a simple function of beam radius {ital r} : {ital P}{sub ({ital r})}={ital P}{sub {lambda}}{center
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1dc777abcb459ac7d9d5f44a1a9b5ff
https://doi.org/10.1118/1.596741
https://doi.org/10.1118/1.596741
Autor:
P. S. Nizin, Kenneth R. Kase
Publikováno v:
Medical Physics. 17:92-94
A measurement technique previously proposed for determining dose from primary radiation has been tested using 60Co gamma rays. It is shown that the dose from primary radiation is reliably determined for field sizes of 10 X 10 and 20 X 20 cm2 at depth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92922d7019ef395c03f07710b025d3f1
https://doi.org/10.1118/1.596534
https://doi.org/10.1118/1.596534
Autor:
P S, Nizin, X S, Chang
Publikováno v:
Medical physics. 18(4)
It is shown that in narrow monoenergetic photon beams under conditions of lateral electron disequilibrium, primary absorbed dose P(r) is a simple function of beam radius r: P(r) = P lambda.(1 - e(-gamma.r)), where P lambda is the primary dose in broa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::181ef7e21a4069bde384f5b43d8c0022
https://pubmed.ncbi.nlm.nih.gov/1921880
https://pubmed.ncbi.nlm.nih.gov/1921880
Autor:
P S, Nizin
Publikováno v:
Medical physics. 18(2)
Using an approximation of Bjarngard and Petti [Phys. Med. Biol. 33, 21-32 (1988)] that the scatter-to-primary ratio SPR(r,d) is a linear function of the geometrical parameter z = rd/(r + d) (where r is the radius of photon beam and d is depth in phan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::070cbce705cbccb680f1464b0142ea3c
https://pubmed.ncbi.nlm.nih.gov/2046599
https://pubmed.ncbi.nlm.nih.gov/2046599
Autor:
P S, Nizin, K R, Kase
Publikováno v:
Medical physics. 17(1)
A measurement technique previously proposed for determining dose from primary radiation has been tested using 60Co gamma rays. It is shown that the dose from primary radiation is reliably determined for field sizes of 10 X 10 and 20 X 20 cm2 at depth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::aa5ea5a696c46890940d887f8e045300
https://pubmed.ncbi.nlm.nih.gov/2308550
https://pubmed.ncbi.nlm.nih.gov/2308550
Autor:
Yu. Ya. Meshkov, V. N. Gridnev, V. G. Prokopenko, V. G. Gavrilyuk, I. Ya. Dekhtyar, P. S. Nizin
Publikováno v:
Physica Status Solidi (a). 14:689-694
The Mossbauer effect was used to investigate the cementite state in cold-worked steel. An intensive dissociation of cementite is found at plastic deformation of the steel with the structure of plate perlite. For deformation of 93% this dissociation a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c49f88f91b352df77b713d2d54c592a
https://doi.org/10.1002/pssa.2210140238
https://doi.org/10.1002/pssa.2210140238
Publikováno v:
Advanced Engineering Materials; Dec2020, Vol. 22 Issue 12, p1-20, 20p
Publikováno v:
Metallurgical & Materials Transactions. Part A; Feb2017, Vol. 48 Issue 2, p659-665, 7p
Publikováno v:
Moscow University Physics Bulletin; Jul2016, Vol. 71 Issue 4, p431-439, 9p