Zobrazeno 1 - 10
of 11
pro vyhledávání: '"K W Trantham"'
Publikováno v:
Applied optics. 59(9)
The precision by which an electron spin polarization measurement can be made using a noble-gas polarimeter depends directly on the accuracy of a light-polarization measurement. Since the electron–noble gas collisions occur in a vacuum chamber and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1625bb059395f200623a910176c369
https://pubmed.ncbi.nlm.nih.gov/32225820
https://pubmed.ncbi.nlm.nih.gov/32225820
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 33:3531-3544
Absolute differential cross sections for elastic scattering of electrons from sulfur hexafluoride (SF6) have been measured at 11 incident energies between 2.7 and 75 eV and for scattering angles between 10° and 130°. The magnetic angle-changing dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::931fc930c866b293e15320c717cbf7fa
https://doi.org/10.1088/0953-4075/33/18/304
https://doi.org/10.1088/0953-4075/33/18/304
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:815-824
The formation and decay of the two lowest-lying, triply excited resonances in the autoionizing region of the helium spectrum (57-60 eV) have been studied by measuring electron-impact excitation functions for the n = 2 singly excited states of helium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56fed4c837d1777dec95f451233f2819
https://doi.org/10.1088/0953-4075/32/3/021
https://doi.org/10.1088/0953-4075/32/3/021
Autor:
K W Trantham, Martin Andrew Green, P J O Teubner, J C Gibson, Michael J. Brunger, Stephen Buckman
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:213-233
We present measurements of absolute cross sections for low- and intermediate-energy elastic electron scattering from , which have been measured independently on different experimental apparatus in two laboratories. The results are compared with a num
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44538d2d1917d586649783a947ff2d4f
https://doi.org/10.1088/0953-4075/32/2/006
https://doi.org/10.1088/0953-4075/32/2/006
Publikováno v:
Review of Scientific Instruments. 67:4103-4108
The design and operation of a simple inline optical electron polarimeter is presented. It is based on exchange excitation of ground state neon atoms. The electron polarization is determined from the degree of circular polarization of the subsequent 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdd0dc700408bf036d32f6fa169d8020
https://doi.org/10.1063/1.1147555
https://doi.org/10.1063/1.1147555
Publikováno v:
Physical Review A. 53:1623-1629
We have measured the polarization of fluorescence emitted by the noble gases He, Ne, Ar, Kr, and Xe following impact excitation by polarized electrons. In He, the ${3}^{3}$P\ensuremath{\rightarrow}${2}^{3}$S transition was studied; in the heavy noble
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dc0dc19328d1a3d5e22e8eedc205e4c
https://doi.org/10.1103/physreva.53.1623
https://doi.org/10.1103/physreva.53.1623
Publikováno v:
Review of Scientific Instruments. 87:124903
Before a GaAs photocathode can be activated to achieve a negative electron affinity condition, the GaAs crystal must be cleaned. This is most commonly done by ohmic, radiative, or electron bombardment heating. We report a new technique to monitor the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e02c51253210056ddb40cf39a81f8ce7
https://doi.org/10.1063/1.4972255
https://doi.org/10.1063/1.4972255
Autor:
K. W. Trantham, M. E. Johnston
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 28:L543-L548
We have searched for evidence of electron circular dichroism, Lhe Preferential transmission of longirudinally polarized electrons lhrough a chiral medium, using stereoisomers of camphor. Such an effect was seen by Campbell and Farago in 1987 for 5 eV
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02a26d3faa2e5207489468e9822c942c
https://doi.org/10.1088/0953-4075/28/17/004
https://doi.org/10.1088/0953-4075/28/17/004
Publikováno v:
Applied Optics. 47:2465
A method for the active feedback reduction of optical instrumental intensity asymmetries is presented. It is based on the fast chopping of two spatially separated beams of light with orthogonal linear polarizations that are recombined and passed thro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be9acc91b92c4bd9bed2486c24ade8c8
https://doi.org/10.1364/ao.47.002465
https://doi.org/10.1364/ao.47.002465
Autor:
K. W. Trantham
Publikováno v:
Review of Scientific Instruments. 66:5377-5378
A common cause of single‐particle detector failures is high input fluxes. A digital circuit designed to turn off the detector’s high voltage when this occurs is presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::382bfbd6e40d6c0780ba16db8eeef469
https://doi.org/10.1063/1.1146055
https://doi.org/10.1063/1.1146055