A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles

Peyser, T. A. ; Antoniades, J. A. ; Myers, M. C. ; Lampe, M. ; Pechacek, R. E. ; Murphy, D. P. ; Meger, R. A.

[S.l.] : American Institute of Physics (AIP)
Published 1991
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
Electrical Engineering, Measurement and Control Technology
Notes:
A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
Type of Medium:
Electronic Resource
URL:
_version_ 1798289705994813441
autor Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
autorsonst Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
book_url http://dx.doi.org/10.1063/1.1142178
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLZ219494983
issn 1089-7623
journal_name Review of Scientific Instruments
materialart 1
notes A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
package_name American Institute of Physics (AIP)
publikationsjahr_anzeige 1991
publikationsjahr_facette 1991
publikationsjahr_intervall 8009:1990-1994
publikationsjahr_sort 1991
publikationsort [S.l.]
publisher American Institute of Physics (AIP)
reference 62 (1991), S. 2895-2903
search_space articles
shingle_author_1 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
shingle_author_2 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
shingle_author_3 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
shingle_author_4 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
shingle_catch_all_1 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
1089-7623
10897623
American Institute of Physics (AIP)
shingle_catch_all_2 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
1089-7623
10897623
American Institute of Physics (AIP)
shingle_catch_all_3 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
1089-7623
10897623
American Institute of Physics (AIP)
shingle_catch_all_4 Peyser, T. A.
Antoniades, J. A.
Myers, M. C.
Lampe, M.
Pechacek, R. E.
Murphy, D. P.
Meger, R. A.
A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
A multi-element segmented concentric Faraday collector has been developed for measuring the time evolution of the beam half-current radius (a1/2) of an intense relativistic electron beam. Each collector segment measures the total current within its radius. The data analysis procedure fits the data from all five segments at a given time to a prescribed beam profile and calculates a1/2 from the parameters of the fitted curves. The effect of beam centroid offsets on the data analysis was investigated numerically. Beam centroid offsets as large as half the beam radius produce only a 10% error in the experimental measurement of a1/2. The use of a thin graphite overlayer followed by range-thick stainless steel reduces scattering from one collector element to the next. The instrument has been used extensively on the SuperIBEX relativistic electron beam accelerator for measurement of the half-current radius as a function of time. Radius variations in excess of 4:1 have been measured over the duration of the beam pulse for beams with 5-MeV energy, 20-kA peak current and 1-cm final half-current radii.
1089-7623
10897623
American Institute of Physics (AIP)
shingle_title_1 A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
shingle_title_2 A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
shingle_title_3 A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
shingle_title_4 A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
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titel A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
titel_suche A segmented concentric Faraday cup for measurement of time-dependent relativistic electron beam profiles
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