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TUPD17 | Spatial Resolution Test of a BPMS for DESIREE Beam Line Diagnostics | 338 |
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Funding: Two of us (S.Das and J. Harasimowicz) acknowledge the financial support received from the European Commission within FP7 Marie Curie Initial Training Network DITANET Spatial resolution of a beam profile monitoring system (BPMS) was tested. It will be a part of the DESIREE [1] diagnostics to monitor and cover the wide range of beam intensities and energies. The BPMS consists of an aluminum (Al) plate, a grid placed in front of Al, a microchannel plate (MCP), a fluorescent screen (F.S.), a PC, and a CCD camera [2]. A beam collimator containing a set of circular holes of different diameter and separation between them was built to check the spatial resolution of the system [3]. Two holes of diameter 1 mm, separated by 2 mm, in the collimator were used for this purpose. A proton beam was used for the measurements. It was observed that these holes create two beams of approximately same intensity of areas each of 1 mm in diameter with 2 mm separation between the beam centers on the screen, suggesting a resolution of 2 mm of the system. The resolution was tested for different beam energy (0.5-40 keV), and voltages applied on the Al and MCP plates. The experimental results will be compared with the simulations. [1] www.msl.se;www.atom.physto.se/Cederquist/desiree_web_hc.html [2] K. Kruglov et al, NIM A, 441, 595 (2002);Nucl. Phys. A, 701, 193c (2002) [3] S. Das et al, Proceedíngs of DITANET workshop, Nov. 23-25, 2009 |
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