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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Aalseth, Craig E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2009Initial Component Testing for a Germanium Array Cryostat
- 2008Use of Electrodeposition for Sample Preparation and Rejection Rate Prediction for Assay of Electroformed Ultra High Purity Copper for 232Th and 238U Prior to Inductively Coupled Plasma Mass Spectrometry (ICP/MS)citations
- 2007The Chemistry of Ultra-Radiopure Materials
- 2007Cleaning and passivation of copper surfaces to remove surface radioactivity and prevent oxide formationcitations
- 2007Construction and Testing of a Low-power Cryostat for MARS
- 2005Ultra-Low-Background Copper Production and Clean Fabrication
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document
Ultra-Low-Background Copper Production and Clean Fabrication
Abstract
Commercial high-purity copper is an attractive material for constructing ultra-low-background radiation measurement devices. When even higher purity is desired, additional electrolytic and chemical purification can be combined with the final fabrication step. This process results in ''electroformed'' copper parts of extreme purity. Copper electroforming can be done underground, providing a way to eliminate cosmogenic activation products seen in copper that has had above-ground exposure. A brief summary of the history, cosmogenics, process chemistry, cleaning, and passivation of this material is given. Examples of finished parts illustrate the method. The required infrastructure is summarized.