A high brightness electron LINAC is being built in the Compton Gamma Source at the ELI Nuclear Physics facility in Romania. To achieve the design luminosity, a train of 32 bunches, 16 ns spaced, with a nominal charge of 250 pC will collide with a laser beam in two interaction points. Electron beam spot size is measured with Optical Transition Radiation (OTR) profile monitors. In order to measure the beam properties, the OTR screens must sustain the thermal and mechanical stress due to the energy deposited by bunches. This paper is an ANSYS study of the issues due to the high energy transferred to the OTR screens. Thermal multicycle analysis will be shown; each analysis will be followed by a structural analysis in order to investigate the performance of the material
Thermal issues for the optical transition radiation screen for the ELI-NP compton gamma source / Cioeta, Fara; Alesini, David; Falone, A.; Lollo, V. L.; Pellegrino, Luca; Variola, A.; Ciambrella, Massimo; Cortis, Daniele; Marongiu, Marco; Pettinacci, Valerio; Mostacci, Andrea; Palumbo, Luigi. - ELETTRONICO. - (2017). (Intervento presentato al convegno IPAC 2017 tenutosi a Copenhagen, Denmark).
Thermal issues for the optical transition radiation screen for the ELI-NP compton gamma source
CIOETA, Fara;ALESINI, DAVID;PELLEGRINO, LUCA;CIAMBRELLA, MASSIMO;Cortis, Daniele;MARONGIU, MARCO;PETTINACCI, VALERIO;MOSTACCI, Andrea;PALUMBO, Luigi
2017
Abstract
A high brightness electron LINAC is being built in the Compton Gamma Source at the ELI Nuclear Physics facility in Romania. To achieve the design luminosity, a train of 32 bunches, 16 ns spaced, with a nominal charge of 250 pC will collide with a laser beam in two interaction points. Electron beam spot size is measured with Optical Transition Radiation (OTR) profile monitors. In order to measure the beam properties, the OTR screens must sustain the thermal and mechanical stress due to the energy deposited by bunches. This paper is an ANSYS study of the issues due to the high energy transferred to the OTR screens. Thermal multicycle analysis will be shown; each analysis will be followed by a structural analysis in order to investigate the performance of the material| File | Dimensione | Formato | |
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Cioeta_thermal_2017.pdf
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