OpalStripper.cpp

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//
// Class OpalStripper
//   The Stripper element
//
// Copyright (c) 2011, Jianjun Yang, Paul Scherrer Institut, Villigen PSI, Switzerland
// Copyright (c) 2014, 2017-2018, Paul Scherrer Institut, Villigen PSI, Switzerland
// All rights reserved
//
// Implemented as part of the PhD thesis
// "Beam dynamics in high intensity cyclotrons including neighboring bunch effects"
// and the paper
// "Beam dynamics in high intensity cyclotrons including neighboring bunch effects:
// Model, implementation, and application"
// (https://journals.aps.org/prab/pdf/10.1103/PhysRevSTAB.13.064201)
//
// This file is part of OPAL.
//
// OPAL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// You should have received a copy of the GNU General Public License
// along with OPAL. If not, see <https://www.gnu.org/licenses/>.
//
#include "Elements/OpalStripper.h"
#include "AbstractObjects/Attribute.h"
#include "Attributes/Attributes.h"
#include "BeamlineCore/StripperRep.h"
#include "Physics/Physics.h"
#include "Physics/Units.h"
 
 
OpalStripper::OpalStripper():
    OpalElement(SIZE, "STRIPPER",
                "The \"STRIPPER\" element defines a Stripper.") {
 
    itsAttr[XSTART] = Attributes::makeReal
                      ("XSTART", " Start of x coordinate [mm]");
    itsAttr[XEND] = Attributes::makeReal
                    ("XEND", " End of x coordinate, [mm]");
    itsAttr[YSTART] = Attributes::makeReal
                      ("YSTART", "Start of y coordinate, [mm]");
    itsAttr[YEND] = Attributes::makeReal
                    ("YEND", "End of y coordinate, [mm]");
    itsAttr[WIDTH] = Attributes::makeReal
                     ("WIDTH", "Width of the stripper [mm], NOT used");
    itsAttr[OPCHARGE] = Attributes::makeReal
                     ("OPCHARGE", "Charge number of the outcome particle");
    itsAttr[OPMASS] = Attributes::makeReal
                     ("OPMASS", "Mass of the outcome particle [GeV/c^2]");
    itsAttr[OPYIELD] = Attributes::makeReal
                     ("OPYIELD", "Yield (Particle number of the outcome particle) per income particle");
    itsAttr[STOP] = Attributes::makeBool
      ("STOP", "Option Whether stop tracking at the stripper. Default: true", true);
 
    registerOwnership();
 
    setElement(new StripperRep("STRIPPER"));
}
 
 
OpalStripper::OpalStripper(const std::string &name, OpalStripper *parent):
    OpalElement(name, parent) {
    setElement(new StripperRep(name));
}
 
 
OpalStripper::~OpalStripper()
{}
 
 
OpalStripper *OpalStripper::clone(const std::string &name) {
    return new OpalStripper(name, this);
}
 
 
void OpalStripper::update() {
    OpalElement::update();
 
    StripperRep *strp = dynamic_cast<StripperRep *>(getElement());
 
    double xstart   = Units::mm2m * Attributes::getReal(itsAttr[XSTART]);
    double xend     = Units::mm2m * Attributes::getReal(itsAttr[XEND]);
    double ystart   = Units::mm2m * Attributes::getReal(itsAttr[YSTART]);
    double yend     = Units::mm2m * Attributes::getReal(itsAttr[YEND]);
 
    double length   = Attributes::getReal(itsAttr[LENGTH]);
    double opcharge = Attributes::getReal(itsAttr[OPCHARGE]);
    double opmass   = Attributes::getReal(itsAttr[OPMASS]);
    double opyield  = Attributes::getReal(itsAttr[OPYIELD]);
    bool   stop     = Attributes::getBool(itsAttr[STOP]);
 
    strp->setElementLength(length);
    strp->setDimensions(xstart, xend, ystart, yend);
    strp->setOPCharge(opcharge);
    strp->setOPMass(opmass);
    strp->setOPYield(opyield);
    strp->setStop(stop);
    strp->setOutputFN(Attributes::getString(itsAttr[OUTFN]));
 
    // Transmit "unknown" attributes.
    OpalElement::updateUnknown(strp);
}