WEB PAGE<\/a>\n<\/td>\n<\/tr>\n\n2005\/02\/07\n<\/td>\n | Mon.\n<\/td>\n | 13:30-\n<\/td>\n | \uff12\u53f7\u9928\uff12\u968e\u4f1a\u8b70\u5ba4\n<\/td>\n | Dr. Kevin Brown (BNL)\n<\/td>\n | High intensity slow extracted proton beams for rare symmetry violating processes experiments at BNL\n<\/td>\n | \u51a8\u6fa4\u6b63\u4eba\n<\/td>\n | BNL’s AGS has a long history of providing slow extracted proton \nbeams to fixed target experiments. Two new fixed target \nexperiments are now being designed for operation at the AGS. \nBoth experiments require slow extracted beam, but with the \nadded requirement that those beams beam bunched. Bunched \nbeam slow extraction techniques have been developed for \nboth experiments and initial tests have been performed. In \nthis talk I will discuss the history of the AGS high intensity \nslow extraction program, the two new experiments we are \ndesigning and their requirements, and the techniques used \nto created the bunch structure.\n<\/td>\n<\/tr>\n |
\n2005\/03\/03\n<\/td>\n | Thu.\n<\/td>\n | 15:00-\n<\/td>\n | \uff12\u53f7\u9928\uff12\u968e\u4f1a\u8b70\u5ba4\n<\/td>\n | \u9234\u6728\u654f\u90ce\u6c0f\n<\/td>\n | \uff30\uff33\u304b\u3089\uff34\uff32\uff29\uff33\uff34\uff21\uff2e\u3078\u3001\u305d\u3057\u3066\u305d\u306e\u5f8c\n<\/td>\n | \u938c\u7530\u3001\u5927\u898b\n<\/td>\n | TRISTAN\u4ee5\u5f8c\u306e\u3053\u3068\u306f\u7686\u69d8\u3088\u304f\u3054\u5b58\u77e5\u306e\u4e8b\u3068\u601d\u308f\u308c\u307e\u3059\u306e\u3067\u3001 \u79c1\u306f\u5148\u305aPS\u306e\u8a2d\u8a08\u304b\u3089\u5efa\u8a2d\u306e\u53e4\u3044\u8a71\u3057\u3092\u307e\u3068\u3081\u3066\u8ff0\u3079\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 PF\u304b\u3089TRISTAN\u0435\u0435 \u885d\u7a81\u5668\u306b\u3064\u3044\u3066\u306e\u8a71\u3057\u3067\u306f\u3001\uff43\uff4f\uff4c\uff4c\uff45\uff43\uff54\uff49\uff56\uff45\u3000\uff45\uff46\uff46\uff45\uff43\uff54\uff53 \u306e\u4e8b\u3001\u66f4\u306bCERN\u3084TRIUMF\u3067\u306eKAON FACTORY\u30c7\u30b6\u30a4\u30f3\u3067\u884c\u3063\u305f \u4ed5\u4e8b\u306b\u3064\u3044\u3066\u3082\u304a\u8a71\u3057\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \n<\/td>\n<\/tr>\n |
\n2005\/01\/25<\/td>\n | Tue.\n<\/td>\n | 15:00-\n<\/td>\n | KEK4\u53f7\u99281\u968e\u30bb\u30df\u30ca\u30fc\u30db\u30fc\u30eb\n<\/td>\n | \u5927\u962a\u5927\u5b66\u3000\u4f50\u85e4\u5065\u6b21\u6c0f\n<\/td>\n | \uff1a\u300c\u52a0\u901f\u5668\u96fb\u78c1\u77f3\u96fb\u6e90\u306e\u30b3\u30e2\u30f3\u30e2\u30fc\u30c9\u30fb\u30ce\u30a4\u30ba\u2010\u30b5\u30a4\u30ea\u30b9\u30bf\u304b\u3089\uff29\uff27\uff22\uff34\u3078\u306e\u5c55\u958b\u2010\u300d\u3000\n<\/td>\n | \u5c0f\u6797\u3000\u4ec1\n<\/td>\n | \u52a0\u901f\u5668\u30c7\u30b6\u30a4\u30f3\u30ec\u30d3\u30e5\u30fc\u59d4\u54e1\u4f1a\u3092\u958b\u50ac\u3057\u3066\u52a0\u901f\u5668\u306e\u8af8\u8ab2\u984c\u306e\u30ec\u30d3\u30e5\u30fc\u3092\u884c\u3063\u3066\u304d\u3066\u304a\u308a\u307e\u3059\u3002\u305d\u306e\u7b2c19\u56de\u306f\u7279\u5225\u7de8\u3068\u3057\u3066\u3001\u5927\u962a\u5927\u5b66\u4f50\u85e4\u5065\u6b21\u6559\u6388\u306b\u3088\u308b\u300c\u52a0\u901f\u5668\u96fb\u78c1\u77f3\u96fb\u6e90\u306e\u30b3\u30e2\u30f3\u30e2\u30fc\u30c9\u30fb\u30ce\u30a4\u30ba\u2010\u30b5\u30a4\u30ea\u30b9\u30bf\u304b\u3089\uff29\uff27\uff22\uff34\u3078\u306e\u5c55\u958b\u2010\u300d\u3068\u984c\u3057\u3066\u306e\u8b1b\u6f14\u3092\u884c\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n |
\n2005\/01\/20\n<\/td>\n | Thu.\n<\/td>\n | 13:30 – 15:00\n<\/td>\n | 2 Gokan building, 2nd floor, Meeting room (No.203)\n<\/td>\n | Dr. Christopher K.Allen (Los Alamos National Laboratory)\n<\/td>\n | An Adaptive Space Charge Algorithm for Three-Dimensional RMS Beam Envelope Simulation\n<\/td>\n | \u53e4\u5ddd\u548c\u6717\n<\/td>\n | We discuss an algorithm for treating the first-order effects \nof space charge in bunched beam RMS envelope simulation. The envelope \nsimulation is assumed to be of the type employed by TRACE3D or \nTRANSPORT. Specifically, transfer matrices are used to propagate the \nCourant-Snyder parameters along the beamline. Thus, to include space \ncharge effects we must determine a transfer matrix representing the \ndynamics caused by the self electric fields. We describe how this \nmatrix is computed and, consequently, is employed in the dynamics \ncalculations. Because the space charge matrices depend upon the \nCourant-Snyder parameters, and the Courant-Snyder parameters in turn \ndepend upon the space charge matrices, we are also faced with some \nself-consistency issues. To circumvent this problem we present an \nadaptive technique for applying the space charge matrices that \nmaintains a specified level of accuracy.<\/td>\n<\/tr>\n |
\n2004\/12\/21\n<\/td>\n | Tue.\n<\/td>\n | 16:00-17:00\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | S.M.Lund (LBNL\/LLNL)\n<\/td>\n | Heavy Ion Inertial Fusion Program in US and \n Recent Developments in the WARP Cord for \n Intense Beam Simulations\n<\/td>\n | \u9ad8\u5c71\u5065\n<\/td>\n | The WARP code is an extensive self-consistent electrostatic \nPIC\u3000Code developed to simulate ion beams with high space-charge \nintensity for Heavy Ion Fusion and other applications. WARP Consists \nof a family of self-consistent moment, 2D(r-z axisymmetric and x-y \ntransverse slice), and 3D models with an extensive hierarchy of \nfield-solvers and particle movers that work with bent or “warped” \nlattices and common diagnostics. Numerically intensive routines in \nfortran are linked to the\u3000Python interpreter. Many diagnostic and \ncode control structures are coded in Python to allow flexible \noperation and code steering. \nThis structure allows models and numerical methods to be utilized \nunder a common framework, thereby facilitating checks of \nidealizations and numerical methods. Here we highlight recent \nadvances in WARP modeling capabilities and overview a particular \nadvance in the understanding of intense beam properties learned from \nWARP. Modeling advances include:adaptive mesh refinement enabling \nhigh resolution simulations that are being applied to injectors; \ncomplex geometry field solver with multiple emitting structures, \napertures, beams, and self-consistent particle scraping to enable \nsimulation of multi-beam injectors with merging; generalized \nparticle loading to construct initial distributions consistent with \nlimited experimentally measured distribution projections; and a \nhybrid mover for electrons and ions that interpolates between a \nusual Boris advance and a drift kinetic model to enable more \nefficient e cloud simulations. To highlight physics insights \nprovided by the code, we highlight WARP modeling of the High \nCurrent Transport Experiment(HCX) at LBNL that illustrate problems \nassociated with lattice transitions and aperturing (scraping) of \nintense beams.<\/p>\n<\/td>\n<\/tr>\n |
\n2004\/11\/04\n<\/td>\n | Thu.\n<\/td>\n | 10:00-\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u4f50\u85e4\u3000\u7693\n<\/td>\n | SPIN2004\u5831\u544a\uff06J-PARC-SPIN\n<\/td>\n | \n<\/td>\n | SPIN2004\uff08\u504f\u6975\u56fd\u969b\u4f1a\u8b70\uff09\u306e\u5831\u544a\u3068J-PARC 50GeV-PS \n\u306b\u304a\u3051\u308b\u504f\u6975\u967d\u5b50\u30d3\u30fc\u30e0\u52a0\u901f\u306e\u691c\u8a0e\u306b\u3064\u3044\u3066\u8ff0\u3079\u308b\u3002\n<\/td>\n<\/tr>\n |
\n2004\/10\/18\n<\/td>\n | Mon.\n<\/td>\n | 13:30-\n<\/td>\n | \uff13\u53f7\u9928\uff17\u968e\u4f1a\u8b70\u5ba4\n<\/td>\n | Prof. Nikolai R. Lobanov(The Australian National University)\n<\/td>\n | Low Velocity Two-stub Superconducting Resonators \n for ANU Heavy-ion Accelerator Facility\n<\/td>\n | \u6589\u85e4\u5065\u6cbb\n<\/td>\n | The Australian National University Heavy Ion Accelerators Facility exploits \nsuperconducting RF cavities as accelerating structures. In this talk I will \noutline a superconducting RF activity in the last year, which has been \ntargeted on improving the performance of the ANU LINAC by re-plating SLRs \nwith Pb\/Sn and upgrading the entire RF Control System. A novel two-stub \naccelerating structure, optimised for ion velocity of 5% the speed of \nlight, is presented for use on the Heavy Ion Accelerator at the ANU. The \nmain electromagnetic and mechanical parameters are discussed. The \ntechnological aspects of manufacturing are described; in particular the \nlow-loss RF joints and a novel rotary tuner design. The resonators will \nextend the capability of the ANU LINAC from mass 60 to mass 100. The \nextension of these concepts to a three-stub resonator is flagged.\n<\/td>\n<\/tr>\n |
\n2004\/10\/07\n<\/td>\n | Thu.\n<\/td>\n | 13:30-\n<\/td>\n | \uff12\u53f7\u99282\u968e\u4f1a\u8b70\u5ba4\n<\/td>\n | \u5927\u898b\u548c\u53f2\n<\/td>\n | KEKB\u3067\u306e\u96fb\u5b50\u96f2\u306b\u3088\u308b\u30d0\u30f3\u30c1\u7d50\u5408\u578b\u4e0d\u5b89\u5b9a\u6027\n<\/td>\n | \n<\/td>\n | \u96fb\u5b50\u96f2\u306b\u3088\u308b\u30d0\u30f3\u30c1\u7d50\u5408\u578b\u4e0d\u5b89\u5b9a\u6027\u306f KEK-PF\u3001BEPC\u3001KEKB\u3067\u89b3\u6e2c\u3055\u308c\u3066\u304d\u305f\u3002 \u672c\u30bb\u30df\u30ca\u30fc\u3067\u306fKEKB\u306b\u304a\u3044\u3066\u89b3\u6e2c\u3055\u308c\u305f\u4e0d\u5b89\u5b9a\u6027\u3092 \u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u7406\u89e3\u3067\u304d\u308b\u306e\u304b\u3092\u30c6\u30fc\u30de\u3068\u3059\u308b\u3002 \u30d0\u30f3\u30c1\u7d50\u5408\u578b\u4e0d\u5b89\u5b9a\u6027\u306f\u5358\u30d0\u30f3\u30c1\u4e0d\u5b89\u5b9a\u6027\u306b\u304f\u3089\u3079 \u9577\u8ddd\u96e2\u529b\u3082\u91cd\u8981\u306b\u306a\u308b\u3002\u4e0d\u5b89\u5b9a\u6027\u306e\u69d8\u5b50\u306f\u30c1\u30a7\u30f3\u30d0\u30fc\u5185\u306e \u96fb\u5b50\u96f2\u306e\u69d8\u5b50\u3092\u77e5\u308b\u624b\u304c\u304b\u308a\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002\n<\/td>\n<\/tr>\n |
\n2004\/7\/16\n<\/td>\n | Fri.\n<\/td>\n | 15:30-\n<\/td>\n | 2\u53f7\u99282\u968e\u4f1a\u8b70\u5ba4\n<\/td>\n | \u83d6\u84b2\u7530\u7fa9\u535a\n<\/td>\n | RF\u30b7\u30fc\u30eb\u30c9\u3057\u305f\u30bb\u30e9\u30df\u30c3\u30af\u30c1\u30a7\u30f3\u30d0\u30fc\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\n<\/td>\n | \u5927\u898b\u548c\u53f2\n<\/td>\n | J-PARC\u306e3GeV\u306e\u30ea\u30f3\u30b0\u3067\u306f\u3001\u30bb\u30e9\u30df\u30c3\u30af\u306e\u5916\u5074\u3092\u9285\u3067\u30b7\u30fc\u30eb\u30c9\u3057\u3001 \n\u5185\u5074\u3092TiN\u3067\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u305f\u3082\u306e\u3092\u30c1\u30a7\u30f3\u30d0\u30fc\u3068\u3057\u3066\u7528\u3044\u308b\u3002 \n\u3053\u308c\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3059\u308b\u3002 \n\u8aac\u660e<\/a>\n<\/td>\n\n2004\/07\/01\n<\/td>\n | Thu.\n<\/td>\n | 10:00-11:00\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u69ae\u3000\u6b66\u4e8c\uff08\u7b51\u6ce2\u5927\uff09\n<\/td>\n | \u7b51\u6ce2\u5927\u5b66\u967d\u5b50\u7dda\u533b\u5b66\u5229\u7528\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u306e\u73fe\u72b6\u3068\u8ab2\u984c<\/a>\n<\/td>\n | \u4f50\u85e4\u3000\u7693\n<\/td>\n | \u967d\u5b50\u7dda\u6cbb\u7642\u306e\u73fe\u72b6\u304a\u3088\u3073\u5b9f\u7528\u6a5f\u306b\u8981\u6c42\u3055\u308c\u308b\u30b9\u30da\u30c3\u30af\u3001\u65b0\u3057\u3044\u7167\u5c04\u6280\u8853\u7b49\u306b\u3064 \n\u3044\u3066\n<\/td>\n<\/tr>\n<\/tr>\n | \n2004\/06\/11\n<\/td>\n | Fri.\n<\/td>\n | 14:00-15:00\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u677e\u6751\u3000\u660e\u3000\u6c0f\n<\/td>\n | \u4e2d\u6027\u5b50\u6355\u6349\u7642\u6cd5\u306e\u73fe\u72b6\u3068\u4eca\u5f8c\u306e\u8ab2\u984c\u306b\u3064\u3044\u3066\u3002\u52a0\u901f\u5668\u30d9\u30fc\u30b9\u306b\u306a\u308b\u3068\u3069\u3046 \n\u306a\u308b\u304b\uff1f\n<\/td>\n | \u4f50\u85e4\u3000\u7693\n<\/td>\n | \u7b51\u6ce2\u5927\u5b66\u5927\u5b66\u9662\u4eba\u9593\u7dcf\u5408\u79d1\u5b66\u7814\u7a76\u79d1\u3000\u6a5f\u80fd\u5236\u5fa1\u533b\u5b66\u5c02\u653b\u3000\u8133\u795e\u7d4c\u6a5f\u80fd\u5236\u5fa1\u533b\u5b66 \n\uff08\u8133\u795e\u7d4c\u5916\u79d1\u5b66\uff09\u306e\u677e\u6751\u6c0f\u306b\u6f14\u984c\u306e\u3088\u3046\u306a\u5185\u5bb9\u3067\u3001\u3044\u308f\u3086\u308b\u7c92\u5b50\u7dda\u6cbb\u7642\u3068\u306f\u3069\u3053 \n\u304c\u9055\u3046\u304b\u7b49\n<\/td>\n<\/tr>\n | \n2004\/06\/11\n<\/td>\n | Fri.\n<\/td>\n | 15:00-16:00\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u677f\u91ce\u3000\u660e\u53f2\u3000\u6c0f\n<\/td>\n | \u5175\u5eab\u770c\u7c92\u5b50\u7dda\u304c\u3093\u6cbb\u7642\u88c5\u7f6e\u3068\u305d\u306e\u73fe\u72b6<\/a>\n<\/td>\n | \u4f50\u85e4\u3000\u7693\n<\/td>\n | \u5175\u5eab\u770c\u7c92\u5b50\u7dda\u304c\u3093\u6cbb\u7642\u88c5\u7f6e\u304c\u7a3c\u50cd\u3057\u3066\u6570\u5e74\u306b\u306a\u308a\u307e\u3059\u3002\u52a0\u901f\u5668\u6982\u8981\u3068\u6cbb\u7642\u306e\u73fe \n\u72b6\n<\/td>\n<\/tr>\n | \n2004\/05\/27\n<\/td>\n | Thu.\n<\/td>\n | 13:30-\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u5c71\u7530\u3000\u8070 \u6c0f\n<\/td>\n | HIMAC\u306e\u52a0\u901f\u5668\u6982\u8981\u3068\u6cbb\u7642\u306e\u73fe\u72b6 63MB<\/A>\n<\/td>\n | \u4f50\u85e4\u3000\u7693\n<\/td>\n | \u653e\u533b\u7814\u3067\u306fHIMAC\u306b\u3088\u308b\u70ad\u7d20\u7dda\u6cbb\u7642\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002 \nHIMAC\u306e\u52a0\u901f\u5668\u6982\u8981\u3068\u6cbb\u7642\u306e\u73fe\u72b6\u3092\u304a\u8a71\u3044\u305f\u3060\u304d\u307e\u3059\u3002\n<\/td>\n<\/tr>\n | \n2004\/05\/20\n<\/td>\n | Thu.\n<\/td>\n | 10:00-\n<\/td>\n | \uff11\u53f7\u9928\u8ac7\u8a71\u5ba4\n<\/td>\n | \u798f\u672c\u3000\u8c9e\u7fa9\u3000\u6c0f\n<\/td>\n | \u52a0\u901f\u5668\u3068\u533b\u7642\u306e\u95a2\u308f\u308a\u5408\u3044 23MB<\/a>\n<\/td>\n | \n<\/td>\n | \u52a0\u901f\u5668\u306e\u5229\u7528\u3068\u3057\u3066\u3001\u96fb\u5b50\u30ea\u30cb\u30a2\u30c3\u30af\u304c\u533b\u7642\u306b\u5e83\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u308f\u304c\u56fd\u3067\u3082 \n700\u53f0\u4ee5\u4e0a\u304c\u75c5\u9662\u306b\u8a2d\u7f6e\u3055\u308c\u3066\u3044\u3066\u3001\u4e00\u3064\u306e\u6a5f\u7a2e\u3068\u3057\u3066\u306f\u6700\u3082\u591a\u304f\u88fd\u4f5c\u3055\u308c\u3066\u304d \n\u305f\u3053\u3068\u306f\u3001\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u308b\u3002\u3053\u308c\u3068\u306f\u5225\u306b\u3001\u30b7\u30f3\u30af\u30ed\u30c8\u30ed\u30f3\u304c\u4e16\u306b\u51fa\u308b\u524d\u306e\u3001 \nLBL\u306e\u967d\u5b50800MeV\u30b7\u30f3\u30af\u30ed\u30b5\u30a4\u30af\u30ed\u30c8\u30ed\u30f3\u304c\u5b9f\u306f\u533b\u5b66\u306e\u30d5\u30a1\u30f3\u30c9\u3067\u4f5c\u3089\u308c\u305f\u3053\u3068 \n\u306b\u8c61\u5fb4\u3055\u308c\u308b\u3088\u3046\u306b\u3001\u52a0\u901f\u5668\u3068\u533b\u7642\u306e\u4fc2\u308a\u5408\u3044\u306f\u610f\u5916\u306b\u9577\u3044\u3002\u305d\u3053\u3067\u3053\u308c\u3092\u6b74\u53f2 \n\u7684\u306b\u773a\u3081\u308b\u3068\u5171\u306b\u73fe\u5728\u4f55\u51e6\u3067\u4f55\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3092\u5404\u7a2e\u7c92\u5b50\u7dda\u306e\u7279\u6027\u3068\u4f75\u305b\u3066\u6982 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