DIPAC2011 - List of Authors (Ropelewski, L.)

Paper	Title	Page
TUPD63	Gas Electron Multipliers for the Antiproton Decelerator	449
	S.C. Duarte Pinto, O.R. Jones, L. Ropelewski, J. Spanggaard, G. Tranquille CERN, Geneva, Switzerland
	The new beam profile measurement for the Antiproton Decelerator (AD) at CERN is based on a single Gas Electron Multiplier (GEM) with a 2D readout structure. This detector is very light (~0.4% X₀), and measures horizontal and vertical profiles directly in one plane. This overcomes the problems previously encountered with multi-wire proportional chambers (MWPCs) for the same purpose, where beam interactions with the detector severely affect the obtained profiles. A prototype was installed and successfully tested in late 2010, with another 3 detectors now installed in the ASACUSA beam line. This paper will provide a detailed description of the detector and discuss the initial results obtained.

Paper

Title

Page

Gas Electron Multipliers for the Antiproton Decelerator

449

S.C. Duarte Pinto, O.R. Jones, L. Ropelewski, J. Spanggaard, G. Tranquille
CERN, Geneva, Switzerland

The new beam profile measurement for the Antiproton Decelerator (AD) at CERN is based on a single Gas Electron Multiplier (GEM) with a 2D readout structure. This detector is very light (~0.4% X₀), and measures horizontal and vertical profiles directly in one plane. This overcomes the problems previously encountered with multi-wire proportional chambers (MWPCs) for the same purpose, where beam interactions with the detector severely affect the obtained profiles. A prototype was installed and successfully tested in late 2010, with another 3 detectors now installed in the ASACUSA beam line. This paper will provide a detailed description of the detector and discuss the initial results obtained.