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| 4 | <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> |
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| 5 | <meta name="Author" content="Jean-Eric Campagne"> |
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| 6 | <meta name="GENERATOR" content="Mozilla/4.75 [fr] (Windows NT 5.0; U) [Netscape]"> |
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| 7 | <title>NA_COLLECTOR</title> |
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| 8 | </head> |
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| 9 | <body> |
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| 10 | |
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| 11 | <li> |
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| 12 | <b>High power collection systems (horns, solenoids, etc)</b><i> </i>Coordinator<b> |
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| 13 | J. E. Campagne (LAL) </b><i> </i>shortname: <b>COLLECTOR</b></li> |
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| 14 | |
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| 15 | <table BORDER CELLSPACING=2 CELLPADDING=2 WIDTH="100%" > |
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| 16 | <caption><tbody> |
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| 17 | <br></tbody></caption> |
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| 18 | |
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| 19 | <tr> |
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| 20 | <td><font color="#000000">The major motivation of a Network Activity and |
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| 21 | also R&D studies in this field is that the collection system |
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| 22 | for the future neutrino beams will have to keep up with unprecendent challenging |
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| 23 | conditions as such as 1) more than one order magnitude more electric stresses |
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| 24 | (expressed in A.Hz) than the MiniBOON Horn and more than two orders |
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| 25 | of magnitudes than the present K2K Horn and the future NuMI and CNGS Horns |
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| 26 | and 2) a huge rapid neutron flux 10^22n/cm^2/6weeks due to the necessary |
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| 27 | integration of the TARGET inside the COLLECTOR system. The NA will attack |
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| 28 | the challenge by</font> |
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| 29 | <ul> |
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| 30 | <li> |
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| 31 | Defining, in collaboration with the TARGET team, a viable solution |
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| 32 | to all the integration problems imposed by the need of locating the target |
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| 33 | inside the collector: neutron radiation, heat load...</li> |
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| 34 | |
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| 35 | <li> |
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| 36 | Comparing focusing and collection capabilities of the few main options |
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| 37 | of collection systems, as simulated by the few main existing codes</li> |
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| 38 | |
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| 39 | <li> |
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| 40 | Conducting particle production and collection simulations using different |
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| 41 | Monte Carlo programs: GEANT, MARS,... </li> |
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| 42 | |
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| 43 | <li> |
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| 44 | Conducting simulation of thermal and mechanical stresses of the collection |
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| 45 | systems to define the critical points </li> |
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| 46 | |
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| 47 | <li> |
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| 48 | Studing resistance of different materials proposed for collectors |
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| 49 | operating under severe radiation conditions</li> |
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| 50 | |
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| 51 | <li> |
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| 52 | Studing the cooling system to optimize the operating heating temperature |
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| 53 | of the alloy </li> |
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| 54 | |
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| 55 | <li> |
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| 56 | Estimating reliably lifetime expectations under unprecedented operation |
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| 57 | conditions (highly radioactive enviroments at high repetetition rate). </li> |
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| 58 | |
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| 59 | <li> |
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| 60 | Proposing R&D projects and establishing collaborations for the design |
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| 61 | and test of horns and other collection systems, as they are likely to evolve |
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| 62 | to cope with increasingly severe conditions, from the present conventional |
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| 63 | beams up to full power neutrino factories </li> |
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| 64 | </ul> |
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| 65 | </td> |
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| 66 | </tr> |
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| 67 | </table> |
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| 68 | |
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| 69 | <p><font color="#009900"><font size=+3>Attempt to modify the content of |
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| 70 | the CONTRACTING PARTICIPANTS tables: IN2P3</font></font> |
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| 71 | <p><font size=-1>The Institut will coordinate a consortium including physicists |
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| 72 | from French CNRS and University Laboratories (IPN Lyon, LAL, LPNHE |
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| 73 | Paris VI&VII) contributing long term expertise in the field of neutrino |
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| 74 | <b>PHYSICS, |
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| 75 | </b>experiments |
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| 76 | & beams. It expects then to contribute to the |
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| 77 | <b>general </b>steering |
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| 78 | and provide technical expertise in the field of |
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| 79 | <b>COLLECTOR </b>technology |
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| 80 | design studies. (<b><font color="#CC0000">BETABEAM ????</font></b> )</font> |
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| 81 | <br> |
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| 82 | <p><font color="#009900"><font size=+3>Deliverables and relevant milestones:</font></font> |
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| 83 | <br><b>COLLECTOR</b> |
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| 84 | <br>The first deliverable for Summer 2004 will be a status report (R1) |
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| 85 | on existing collection systems used in the past and currently in operation |
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| 86 | (MiniBOON/K2K) and in construction (NuMI/CNGS). Then, till end 2006, studies |
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| 87 | will be condcuted, to produce a detail report (R2) on a specific |
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| 88 | solution for the SuperBeam project. Then, till the end of the NA Jan. 2008, |
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| 89 | it is foreseen to produce a detail report (R3) on the different solutions |
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| 90 | that will be avaliable for the Neutrino Factory project. |
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| 91 | <p>The 2 last reports (R2 and R3) will be based on |
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| 92 | <blockquote> |
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| 93 | <ol> |
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| 94 | <li> |
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| 95 | a detailed particle collection simulations (Monte Carlo based simulations |
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| 96 | with state-of-the art code: GEANT4, MARS,...),</li> |
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| 97 | |
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| 98 | <li> |
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| 99 | thermo-mechanical simulations that implies for instence to experimentally |
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| 100 | measure some relevant parameters (heat diffusion coefficients, stress limit |
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| 101 | under high neutron fluxes and after 10^8 cycles...),</li> |
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| 102 | |
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| 103 | <li> |
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| 104 | complete technical specifications of electric power supply and discharge |
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| 105 | equipment</li> |
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| 106 | |
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| 107 | <li> |
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| 108 | state-of -the art knowledge of mechanical properties of alloys under high |
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| 109 | rate neutron irradiation as already mentionned.</li> |
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| 110 | </ol> |
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| 111 | </blockquote> |
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| 112 | They will include proposition of specific solutions or R&D to |
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| 113 | be conducted necessary to achieve a lifetime of such system of few |
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| 114 | 100 Mega cycles or more. For instance, the documents will address solutions |
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| 115 | <ul> |
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| 116 | <li> |
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| 117 | to the choices of material for the collection device,</li> |
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| 118 | |
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| 119 | <li> |
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| 120 | of machining, soldering and assembling techniques,</li> |
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| 121 | |
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| 122 | <li> |
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| 123 | of heat removal and cooling system,</li> |
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| 124 | |
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| 125 | <li> |
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| 126 | to the problems of TARGET integration in the collection system</li> |
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| 127 | |
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| 128 | <li> |
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| 129 | and of periodic replacement in a high radioactive environment.</li> |
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| 130 | </ul> |
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| 131 | Other deliverables will be intermediate specialized notes and worshop proceedings |
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| 132 | that will be used for the final |
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| 133 | <br>document, and simulation programs that will be worth to develop for |
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| 134 | these studies. |
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| 135 | <br> |
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| 136 | <p><b><font size=+2>5 Year Schedule <i><font color="#CC0000">(from Roger)</font></i></font></b> |
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| 137 | <p>Spring 2004 Initial meeting of the Target and Collector Sections. Allotment |
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| 138 | of specific duties. |
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| 139 | <p>Summer 2004 1st Main Meeting (with international participants) to present |
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| 140 | the current progress in target and collector studies. |
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| 141 | <p>Winter 2004 <font color="#CC0000">Publication of the current position |
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| 142 | of target and collector development.</font> |
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| 143 | <br><font color="#CC0000">Preliminary recommendations for future R&D.</font> |
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| 144 | <p>Summer 2005 1st International Conference on Targets and Collectors. |
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| 145 | <p>Spring 2006 Publication of Conference Proceedings. |
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| 146 | <br>/Summer 2nd Main meeting of the Target and Collector Sections. |
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| 147 | <p>Autumn 2006 <font color="#FF0000">Publication of interim report on Target |
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| 148 | and Collector developments.</font> |
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| 149 | <br><font color="#FF0000"> Recommendations for future R&D.</font> |
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| 150 | <p>Summer 2007 2nd International Conference on Targets and Collectors. |
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| 151 | <p>Spring 2008 Publication of Conference Proceedings. |
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| 152 | <br>/Summer 3rd Main and final meeting of the Target and Collector Sections. |
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| 153 | <p>Winter 2008 <font color="#FF0000">Final report and recommendations of |
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| 154 | the Target and Collector Sections.</font><font color="#FF0000"></font> |
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| 155 | <p><b><font size=+2>Plans for the following 18th monthes COLLECTOR</font></b> |
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| 156 | <br>Before the NA will start: |
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| 157 | <ul> |
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| 158 | <ul> |
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| 159 | <li> |
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| 160 | report on 6000 type alloy caracteristics on mecanical properties under |
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| 161 | high intensity neutron flux based on bibliographic documentation</li> |
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| 162 | |
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| 163 | <li> |
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| 164 | initiate collaboration with French-CEA for stress limit measurement of |
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| 165 | 6000 type alloy under high level of neutron flux.</li> |
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| 166 | |
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| 167 | <li> |
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| 168 | report on analytic solutions of the Horn thermal/mecanical design</li> |
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| 169 | |
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| 170 | <li> |
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| 171 | start of thermal/mecanical simulation of the Horn for a SuperBeam |
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| 172 | project</li> |
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| 173 | |
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| 174 | <li> |
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| 175 | first report on electric power design of the Horn for SuperBeam project</li> |
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| 176 | |
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| 177 | <li> |
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| 178 | proposal for Horn prototype building as Design Studies Technical Work Project</li> |
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| 179 | </ul> |
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| 180 | |
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| 181 | <li> |
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| 182 | Spring 2004</li> |
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| 183 | |
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| 184 | <ul> |
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| 185 | <li> |
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| 186 | first guide of the collection systems used in the past, present and near |
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| 187 | future (along R1 publication): mechanical stresses and design, electric |
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| 188 | power caracteristics and design, heat dissipation system design, failure |
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| 189 | description, lifetime in operation</li> |
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| 190 | |
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| 191 | <li> |
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| 192 | <font color="#000000">status report of the CERN Horn prototype</font></li> |
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| 193 | |
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| 194 | <li> |
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| 195 | reports on other mechanical tests as diffusion coefficient measurements</li> |
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| 196 | |
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| 197 | <li> |
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| 198 | integration of preliminary TARGET parameters on thermal/mecanical simulation |
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| 199 | of the Horn for a SuperBeam project</li> |
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| 200 | |
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| 201 | <li> |
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| 202 | first drawing design of a new Horn prototype</li> |
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| 203 | </ul> |
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| 204 | |
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| 205 | <li> |
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| 206 | Summer 2004</li> |
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| 207 | |
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| 208 | <ul> |
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| 209 | <li> |
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| 210 | R1 repport production</li> |
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| 211 | |
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| 212 | <li> |
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| 213 | status report on thermo/mechanical simulations</li> |
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| 214 | |
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| 215 | <li> |
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| 216 | status report on electric power design to deliver 300kA/50Hz</li> |
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| 217 | </ul> |
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| 218 | |
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| 219 | <li> |
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| 220 | Spring 2005</li> |
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| 221 | |
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| 222 | <ul> |
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| 223 | <li> |
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| 224 | first result on stress limit measurement of irradiated materials</li> |
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| 225 | |
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| 226 | <li> |
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| 227 | final design of a new Horn prototype to launch realisation</li> |
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| 228 | </ul> |
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| 229 | </ul> |
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| 230 | Afterwards their will be prototype realisation by the Design Studies TWP |
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| 231 | and measurement campain that will end by the writing of R2. Then, new work |
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| 232 | will be undertaken by DS TWP in the line of R3 report goal. |
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| 233 | </body> |
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| 234 | </html> |
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