IPAC2012 - List of Authors (Delonca, M.)

Paper	Title	Page
TUPPR054	Internal H⁰/H⁻ Dump for the Proton Synchrotron Booster Injection at CERN	1942
	M. Delonca, C. Maglioni, A.A. Patapenka, A. Sarrió Martínez CERN, Geneva, Switzerland
	In the frame of the LHC Injectors Upgrade Project at CERN (LIU), the new 160MeV H⁻ Linac4 will inject into the four existing PS Booster rings after the conversion of H⁻ into H⁺ in a stripping foil. Given a limited stripping efficiency and possible foil failures, a certain percentage of the beam is foreseen to remain partially (H⁰) or completely (H⁻) unstripped. An internal dump installed into the chicane magnet to stop these unstripped beams is therefore required. This paper presents the conceptual design of the internal dump, reviewing loading assumptions, design constraints, limitations and integration studies. Power evacuation through the thermal contact between the core and the external active cooling is addressed and, finally, results from the numerical thermo-mechanical analyses are reported.

THPPP015	A Clamped Be Window for the Dump of the HiRadMat Experiment at CERN	3758
	M. Delonca, T. Antonakakis, D. Grenier, C. Maglioni, A. Sarrió Martínez CERN, Geneva, Switzerland
	At CERN, the High Radiation to Materials facility (HiRadMat) is designed to test accelerator components under the impact of high-intensity pulsed beams and will start operation in 2012. In this frame a LHC TED -type dump was installed at the end of the line, working in nitrogen over-pressure, and a 258μm-thick beryllium window was placed as barrier between the inside of the dump and the external atmosphere. Because of the special loading conditions, a clamped window design was especially developed, optimized and implemented, the more standard welded window not being suitable for such loads. Considering then the clamping force and the applied differential pressures, the stresses on the window components were carefully evaluated thanks to empirical as well as numerical models, to guarantee the structural integrity of the beryllium foil. This paper reports on choices and optimizations that led to the final design, presenting also comparative results from different solutions and the detailed results for the adopted one.

Paper

Title

Page

Internal H⁰/H⁻ Dump for the Proton Synchrotron Booster Injection at CERN

1942

M. Delonca, C. Maglioni, A.A. Patapenka, A. Sarrió Martínez
CERN, Geneva, Switzerland

In the frame of the LHC Injectors Upgrade Project at CERN (LIU), the new 160MeV H⁻ Linac4 will inject into the four existing PS Booster rings after the conversion of H⁻ into H⁺ in a stripping foil. Given a limited stripping efficiency and possible foil failures, a certain percentage of the beam is foreseen to remain partially (H⁰) or completely (H⁻) unstripped. An internal dump installed into the chicane magnet to stop these unstripped beams is therefore required. This paper presents the conceptual design of the internal dump, reviewing loading assumptions, design constraints, limitations and integration studies. Power evacuation through the thermal contact between the core and the external active cooling is addressed and, finally, results from the numerical thermo-mechanical analyses are reported.

THPPP015

A Clamped Be Window for the Dump of the HiRadMat Experiment at CERN

3758

M. Delonca, T. Antonakakis, D. Grenier, C. Maglioni, A. Sarrió Martínez
CERN, Geneva, Switzerland

At CERN, the High Radiation to Materials facility (HiRadMat) is designed to test accelerator components under the impact of high-intensity pulsed beams and will start operation in 2012. In this frame a LHC TED -type dump was installed at the end of the line, working in nitrogen over-pressure, and a 258μm-thick beryllium window was placed as barrier between the inside of the dump and the external atmosphere. Because of the special loading conditions, a clamped window design was especially developed, optimized and implemented, the more standard welded window not being suitable for such loads. Considering then the clamping force and the applied differential pressures, the stresses on the window components were carefully evaluated thanks to empirical as well as numerical models, to guarantee the structural integrity of the beryllium foil. This paper reports on choices and optimizations that led to the final design, presenting also comparative results from different solutions and the detailed results for the adopted one.