CHEMICAL SOAK TO REMOVE FURNACE CONTAMINATION WITHOUT DISRUPTING SURFACE OXIDE OR REMOVING BULK MATERIALS
An improved method of removing furnace contamination on niobium cavities to increase the quality factor (Q0) and the accelerating gradient (Eacc) of SRF accelerator cavities. Performing a nitric soak at or below 70% concentration removes contamination which can't be removed by conventional sulf...
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| creator | PALCZEWSKI, Ari |
| description | An improved method of removing furnace contamination on niobium cavities to increase the quality factor (Q0) and the accelerating gradient (Eacc) of SRF accelerator cavities. Performing a nitric soak at or below 70% concentration removes contamination which can't be removed by conventional sulfuric/HF EP, HF soaking, which in turn can improve both Q0 and RE accelerating gradients in niobium. The chemical soak can also remove contamination from a niobium surface without removing the native oxide or bulk niobium removals, such as after infusion or mid-T baking.
L'invention concerne un procédé amélioré d'élimination de contamination de four sur des cavités de niobium pour augmenter le facteur de qualité (Qo) et le gradient d'accélération (Eacc) de cavités d'accélérateur SRF. La réalisation d'un trempage nitrique à une concentration inférieure ou égale à 70 % élimine la contamination qui ne peut pas être éliminée par trempage HF sulfurique classique/HF EP, qui, à son tour, peut améliorer à la fois les gradients d'accélération de Qo et de RE dans le niobium. Le trempage chimique peut également éliminer la contamination d'une surface de niobium sans retirer l'oxyde natif ou les éliminations de niobium en vrac, par exemple après infusion ou cuisson à mi-T. |
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L'invention concerne un procédé amélioré d'élimination de contamination de four sur des cavités de niobium pour augmenter le facteur de qualité (Qo) et le gradient d'accélération (Eacc) de cavités d'accélérateur SRF. La réalisation d'un trempage nitrique à une concentration inférieure ou égale à 70 % élimine la contamination qui ne peut pas être éliminée par trempage HF sulfurique classique/HF EP, qui, à son tour, peut améliorer à la fois les gradients d'accélération de Qo et de RE dans le niobium. Le trempage chimique peut également éliminer la contamination d'une surface de niobium sans retirer l'oxyde natif ou les éliminations de niobium en vrac, par exemple après infusion ou cuisson à mi-T.</description><language>eng ; fre</language><subject>CLADDING OR PLATING BY SOLDERING OR WELDING ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS ; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221117&DB=EPODOC&CC=WO&NR=2022240729A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221117&DB=EPODOC&CC=WO&NR=2022240729A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PALCZEWSKI, Ari</creatorcontrib><title>CHEMICAL SOAK TO REMOVE FURNACE CONTAMINATION WITHOUT DISRUPTING SURFACE OXIDE OR REMOVING BULK MATERIALS</title><description>An improved method of removing furnace contamination on niobium cavities to increase the quality factor (Q0) and the accelerating gradient (Eacc) of SRF accelerator cavities. Performing a nitric soak at or below 70% concentration removes contamination which can't be removed by conventional sulfuric/HF EP, HF soaking, which in turn can improve both Q0 and RE accelerating gradients in niobium. The chemical soak can also remove contamination from a niobium surface without removing the native oxide or bulk niobium removals, such as after infusion or mid-T baking.
L'invention concerne un procédé amélioré d'élimination de contamination de four sur des cavités de niobium pour augmenter le facteur de qualité (Qo) et le gradient d'accélération (Eacc) de cavités d'accélérateur SRF. La réalisation d'un trempage nitrique à une concentration inférieure ou égale à 70 % élimine la contamination qui ne peut pas être éliminée par trempage HF sulfurique classique/HF EP, qui, à son tour, peut améliorer à la fois les gradients d'accélération de Qo et de RE dans le niobium. Le trempage chimique peut également éliminer la contamination d'une surface de niobium sans retirer l'oxyde natif ou les éliminations de niobium en vrac, par exemple après infusion ou cuisson à mi-T.</description><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</subject><subject>PLASMA TECHNIQUE</subject><subject>PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS</subject><subject>PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjEEKwjAQRbtxIeodBlwLNQrickxTO7TNSDKx7kqRCIJood4fFT2Am_8W7_HHyVUXpiaNFXjGEoTBmZqPBvLgLGoDmq1gTRaF2EJDUnAQyMi7cBCye_DB5Z-QT5S9130PPmYXqhJqFOMIKz9NRpfuNsTZj5NknhvRxSL2jzYOfXeO9_hsG1apUmqdbtQWl6v_qhdWoTcg</recordid><startdate>20221117</startdate><enddate>20221117</enddate><creator>PALCZEWSKI, Ari</creator><scope>EVB</scope></search><sort><creationdate>20221117</creationdate><title>CHEMICAL SOAK TO REMOVE FURNACE CONTAMINATION WITHOUT DISRUPTING SURFACE OXIDE OR REMOVING BULK MATERIALS</title><author>PALCZEWSKI, Ari</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2022240729A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2022</creationdate><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>PLASMA TECHNIQUE</topic><topic>PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS</topic><topic>PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>PALCZEWSKI, Ari</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PALCZEWSKI, Ari</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CHEMICAL SOAK TO REMOVE FURNACE CONTAMINATION WITHOUT DISRUPTING SURFACE OXIDE OR REMOVING BULK MATERIALS</title><date>2022-11-17</date><risdate>2022</risdate><abstract>An improved method of removing furnace contamination on niobium cavities to increase the quality factor (Q0) and the accelerating gradient (Eacc) of SRF accelerator cavities. Performing a nitric soak at or below 70% concentration removes contamination which can't be removed by conventional sulfuric/HF EP, HF soaking, which in turn can improve both Q0 and RE accelerating gradients in niobium. The chemical soak can also remove contamination from a niobium surface without removing the native oxide or bulk niobium removals, such as after infusion or mid-T baking.
L'invention concerne un procédé amélioré d'élimination de contamination de four sur des cavités de niobium pour augmenter le facteur de qualité (Qo) et le gradient d'accélération (Eacc) de cavités d'accélérateur SRF. La réalisation d'un trempage nitrique à une concentration inférieure ou égale à 70 % élimine la contamination qui ne peut pas être éliminée par trempage HF sulfurique classique/HF EP, qui, à son tour, peut améliorer à la fois les gradients d'accélération de Qo et de RE dans le niobium. Le trempage chimique peut également éliminer la contamination d'une surface de niobium sans retirer l'oxyde natif ou les éliminations de niobium en vrac, par exemple après infusion ou cuisson à mi-T.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | CHEMICAL SOAK TO REMOVE FURNACE CONTAMINATION WITHOUT DISRUPTING SURFACE OXIDE OR REMOVING BULK MATERIALS |
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