BibTex format
@inproceedings{Hori:2010,
author = {Hori, M and Hanke, K},
pages = {434--437},
title = {A time-resolved sem monitor with large dynamic range},
year = {2010}
}
RIS format (EndNote, RefMan)
TY - CPAPER
AB - CERN's Linac4 will provide 160-MeV H" beams of intensity N = 2 × 10<sup>14</sup> ions s<sup>-1</sup>. Before this beam can be injected into the existing CERN Proton Synchrotron Booster (PSB), a beam chopper must be used to remove some sequences of 0.5-ns-long micro-bunches from it. We developed a monitor to measure the time structure and spatial profile of the chopped beam, with respective resolutions Δt ∼ 1ns and Δx ∼ 2 mm. Its large active area 40 mm × 40 mm and dynamic range also allows investigations of beam halos. The beam was first allowed to strike a carbon foil, and the resulting secondary electrons were accelerated by sets of parallel grid electrodes. The electrons then struck a phosphor screen, and the scintillation light was guided to a thermoelectrically cooled, charge-coupled device camera. The sub-nanosecond time resolution was attained by applying high-voltage pulses to the grids. The monitor has been tested with 700-ps-long UV laser pulses, and a 3-MeV proton beam provided by a tandem.
AU - Hori,M
AU - Hanke,K
EP - 437
PY - 2010///
SP - 434
TI - A time-resolved sem monitor with large dynamic range
ER -