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| TUZB01 |
High Power Proton Beam Targets: Technological Evolution, Current Challenges, and the Future |
1075 |
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- J. Galambos
ORNL, Oak Ridge, Tennessee, USA
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Funding: ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy.
This talk reviews the history of proton beam target development and the current challenges associated with the operation of high power beam targets. Beyond providing high power proton beams, accelerator facilities must also engineer robust targets to accept the load and satisfy mission needs. Recently some high power facilities are limited by target operations, rather than accelerator capabilities. The outlook for targets for future high power facilities is also considered.
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Slides TUZB01 [8.971 MB]
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| THPMY022 |
Design of the Beam Dump for Low Flux Beamline in KOMAC |
3702 |
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- C.R. Kim, Y.-S. Cho, H.S. Kim, H.-J. Kwon
Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea
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Funding: This work has been supported through KOMAC (Korea Multi-purpose Accelerator Complex) operation fund of KAERI by MSIP (Ministry of Science, ICT and Future Planning)
A linac in KOMAC (Korea Multi-Purpose Accelerator Complex) is providing users with 100-MeV proton beam for various applications. A new target room (TR102) for low dose of radiation beam will be constructed in 2016. The beam dump is an important part of this beam line and must be designed to stop 100 MeV beams with a maximum power of 10 kW. Incepting the waste of beam increases the temperature of the beam dump, which can make a structural problem. Therefore, the material of it should be robust under the high temperature and the radioactive circumstance. To ensure safety, thermo-mechanical analyses have been performed for a few materials using a finite element code. The beam dump will be fabricated based on the analysis results.
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| THPMY023 |
The Hiradmat 27 Experiment: Exploring High-Density Materials Response at Extreme Conditions for Antiproton Production |
3705 |
| SUPSS107 |
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- C. Torregrosa, M. Bergeret, E. Berthomé, M.E.J. Butcher, M. Calviani, L. Gentini, D. Horvath, J. Humbert, A. Perillo-Marcone, G. Vorraro
CERN, Geneva, Switzerland
- C. Torregrosa
UPV, Valencia, Spain
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The HRMT27-Rodtarg- experiment used the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods -8 mm diameter, 140 length- made of high-density materials such as Ir, W, Ta, Mo among others. The purpose of the experiment has been to reduce uncertainties on the CERN antiproton target material response and assess the material selection for its future redesign. The experiment was designed to recreate the extreme conditions reached in the named target, estimated on an increase of temperature above 2000 °C in less than 0.5 μs and a subsequent compressive-to-tensile pressure wave of several GPa. The goals of the experiment were to validate the hydrocode calculations used for the prediction of the antiproton target response and to identify limits and failure mechanisms of the materials of interest. In order to accomplishing these objectives, the experiment counted on extensive online optical instrumentation pointing at the rod surfaces. Online results suggest that most of the targets suffer important internal damage even from conditions seven times lower than the reached in the AD-target. Tantalum targets clearly showed the best dynamic response.
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