First results from the first level of the H1 fast track trigger
The H1 experiment at the electron-proton collider HERA has built a new fast track trigger to increase the selectivity for exclusive final states and to cope with the higher background rates after the HERA luminosity upgrade. Hits measured in the central jet chamber of H1 are combined to track segmen...
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| container_end_page | 1979 Vol. 3 |
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| creator | Berger, N. Baird, A. Baldinger, R. Baumgartner, S. Boenig, M.-O. Brown, D.P. Dodt, D. Fleming, Y.H. Jung, A.W. Kolander, M. Kolya, S. Kruger, K. Meer, D. Mercer, D. Muller, D. Muller, J. Naumann, J. Newman, P.R. Sankey, D.P.C. Schoning, A. Schultz-Coulon, H.-C. Weber, R. Wissing, C. Yan, W. |
| description | The H1 experiment at the electron-proton collider HERA has built a new fast track trigger to increase the selectivity for exclusive final states and to cope with the higher background rates after the HERA luminosity upgrade. Hits measured in the central jet chamber of H1 are combined to track segments by performing 5times10 12 mask comparisons per second using content addressable memories (CAMs). These segments are collected and transmitted via 5 Gbit/s LVDS links to custom made multi-purpose boards and linked to tracks. The latency of the fully pipelined processing chain implemented in programmable logic (FPGAs) is 0.72 mus. During the summer 2004 running period, the FTT level one system delivered first physics triggers from which performance figures were extracted. A single hit efficiency of more than 95% was achieved, and first studies on the p T resolution of tracks were performed using triggered rho meson candidates. |
| doi_str_mv | 10.1109/NSSMIC.2004.1462633 |
| format | Conference Proceeding |
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A single hit efficiency of more than 95% was achieved, and first studies on the p T resolution of tracks were performed using triggered rho meson candidates.</description><subject>Associative memory</subject><subject>Cams</subject><subject>Corporate acquisitions</subject><subject>Delay</subject><subject>Field programmable gate arrays</subject><subject>Laboratories</subject><subject>Particle tracking</subject><subject>Performance evaluation</subject><subject>Physics</subject><subject>Wires</subject><issn>1082-3654</issn><issn>2577-0829</issn><isbn>9780780387003</isbn><isbn>0780387007</isbn><isbn>9780780387010</isbn><isbn>0780387015</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2004</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpVkM1OwzAQhM2fRCl9gl78Agm7XsexTwhFlFYqcGjvlZusSyBVkR2QeHui0gvSaEb6RruHEWKKkCOCu3tZrZ4XVa4AdI7aKEN0JiautDCIbAkI52KkirLMwCp38a8DuhQjHHhGptDX4ialdwAFpPVI3M_amHoZOX11fZIhHvayf2MZjrjjb-7kIRzRHGXwA-yjrz8Gb3c7jrfiKvgu8eSUY7GePa6rebZ8fVpUD8usxbLosy2D5cJZoga59tuGjQ2qcVY7VTcGAKkg532ovfbaOm5MsCFgrZUfLmkspn9vW2befMZ27-PP5jQF_QLYzk4k</recordid><startdate>2004</startdate><enddate>2004</enddate><creator>Berger, N.</creator><creator>Baird, A.</creator><creator>Baldinger, R.</creator><creator>Baumgartner, S.</creator><creator>Boenig, M.-O.</creator><creator>Brown, D.P.</creator><creator>Dodt, D.</creator><creator>Fleming, Y.H.</creator><creator>Jung, A.W.</creator><creator>Kolander, M.</creator><creator>Kolya, S.</creator><creator>Kruger, K.</creator><creator>Meer, D.</creator><creator>Mercer, D.</creator><creator>Muller, D.</creator><creator>Muller, J.</creator><creator>Naumann, J.</creator><creator>Newman, P.R.</creator><creator>Sankey, D.P.C.</creator><creator>Schoning, A.</creator><creator>Schultz-Coulon, H.-C.</creator><creator>Weber, R.</creator><creator>Wissing, C.</creator><creator>Yan, W.</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>2004</creationdate><title>First results from the first level of the H1 fast track trigger</title><author>Berger, N. ; Baird, A. ; Baldinger, R. ; Baumgartner, S. ; Boenig, M.-O. ; Brown, D.P. ; Dodt, D. ; Fleming, Y.H. ; Jung, A.W. ; Kolander, M. ; Kolya, S. ; Kruger, K. ; Meer, D. ; Mercer, D. ; Muller, D. ; Muller, J. ; Naumann, J. ; Newman, P.R. ; Sankey, D.P.C. ; Schoning, A. ; Schultz-Coulon, H.-C. ; Weber, R. ; Wissing, C. ; Yan, W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-be08e59833d1ecabde68f2d98492cd60013539aafca4a489ed6f8ff1c42a08e3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Associative memory</topic><topic>Cams</topic><topic>Corporate acquisitions</topic><topic>Delay</topic><topic>Field programmable gate arrays</topic><topic>Laboratories</topic><topic>Particle tracking</topic><topic>Performance evaluation</topic><topic>Physics</topic><topic>Wires</topic><toplevel>online_resources</toplevel><creatorcontrib>Berger, N.</creatorcontrib><creatorcontrib>Baird, A.</creatorcontrib><creatorcontrib>Baldinger, R.</creatorcontrib><creatorcontrib>Baumgartner, S.</creatorcontrib><creatorcontrib>Boenig, M.-O.</creatorcontrib><creatorcontrib>Brown, D.P.</creatorcontrib><creatorcontrib>Dodt, D.</creatorcontrib><creatorcontrib>Fleming, Y.H.</creatorcontrib><creatorcontrib>Jung, A.W.</creatorcontrib><creatorcontrib>Kolander, M.</creatorcontrib><creatorcontrib>Kolya, S.</creatorcontrib><creatorcontrib>Kruger, K.</creatorcontrib><creatorcontrib>Meer, D.</creatorcontrib><creatorcontrib>Mercer, D.</creatorcontrib><creatorcontrib>Muller, D.</creatorcontrib><creatorcontrib>Muller, J.</creatorcontrib><creatorcontrib>Naumann, J.</creatorcontrib><creatorcontrib>Newman, P.R.</creatorcontrib><creatorcontrib>Sankey, D.P.C.</creatorcontrib><creatorcontrib>Schoning, A.</creatorcontrib><creatorcontrib>Schultz-Coulon, H.-C.</creatorcontrib><creatorcontrib>Weber, R.</creatorcontrib><creatorcontrib>Wissing, C.</creatorcontrib><creatorcontrib>Yan, W.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Berger, N.</au><au>Baird, A.</au><au>Baldinger, R.</au><au>Baumgartner, S.</au><au>Boenig, M.-O.</au><au>Brown, D.P.</au><au>Dodt, D.</au><au>Fleming, Y.H.</au><au>Jung, A.W.</au><au>Kolander, M.</au><au>Kolya, S.</au><au>Kruger, K.</au><au>Meer, D.</au><au>Mercer, D.</au><au>Muller, D.</au><au>Muller, J.</au><au>Naumann, J.</au><au>Newman, P.R.</au><au>Sankey, D.P.C.</au><au>Schoning, A.</au><au>Schultz-Coulon, H.-C.</au><au>Weber, R.</au><au>Wissing, C.</au><au>Yan, W.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>First results from the first level of the H1 fast track trigger</atitle><btitle>IEEE Symposium Conference Record Nuclear Science 2004</btitle><stitle>NSSMIC</stitle><date>2004</date><risdate>2004</risdate><volume>3</volume><spage>1976</spage><epage>1979 Vol. 3</epage><pages>1976-1979 Vol. 3</pages><issn>1082-3654</issn><eissn>2577-0829</eissn><isbn>9780780387003</isbn><isbn>0780387007</isbn><eisbn>9780780387010</eisbn><eisbn>0780387015</eisbn><abstract>The H1 experiment at the electron-proton collider HERA has built a new fast track trigger to increase the selectivity for exclusive final states and to cope with the higher background rates after the HERA luminosity upgrade. Hits measured in the central jet chamber of H1 are combined to track segments by performing 5times10 12 mask comparisons per second using content addressable memories (CAMs). These segments are collected and transmitted via 5 Gbit/s LVDS links to custom made multi-purpose boards and linked to tracks. The latency of the fully pipelined processing chain implemented in programmable logic (FPGAs) is 0.72 mus. During the summer 2004 running period, the FTT level one system delivered first physics triggers from which performance figures were extracted. A single hit efficiency of more than 95% was achieved, and first studies on the p T resolution of tracks were performed using triggered rho meson candidates.</abstract><pub>IEEE</pub><doi>10.1109/NSSMIC.2004.1462633</doi></addata></record> |
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| identifier | ISSN: 1082-3654 |
| ispartof | IEEE Symposium Conference Record Nuclear Science 2004, 2004, Vol.3, p.1976-1979 Vol. 3 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Associative memory Cams Corporate acquisitions Delay Field programmable gate arrays Laboratories Particle tracking Performance evaluation Physics Wires |
| title | First results from the first level of the H1 fast track trigger |
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