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[ALICE3] update oTOF radius #15140

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[ALICE3] update oTOF radius #15140

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[ALICE3] update oTOF radius
njacazio Mar 10, 2026
e621bed
Please consider the following formatting changes (#15141)
alibuild Mar 10, 2026
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52 changes: 28 additions & 24 deletions Detectors/Upgrades/ALICE3/IOTOF/simulation/src/Detector.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,8 @@ void Detector::configLayers(bool itof, bool otof, bool ftof, bool btof, std::str
const float x2x0)
{

const float radiusInnerTof = 19.f;
const float radiusOuterTof = 85.f;
const float lengthInnerTof = 124.f;
float lengthOuterTof = 680.f;
const std::pair<float, float> dInnerTof = {21.f, 124.f}; // Radius and length
std::pair<float, float> dOuterTof = {95.f, 680.f}; // Radius and length
std::pair<float, float> radiusRangeDiskTof = {15.f, 100.f};
float zForwardTof = 370.f;
LOG(info) << "Configuring IOTOF layers with '" << pattern << "' pattern";
Expand All @@ -74,49 +72,55 @@ void Detector::configLayers(bool itof, bool otof, bool ftof, bool btof, std::str
ftof = false;
btof = false;
} else if (pattern == "v3b1a") {
lengthOuterTof = 500.f;
dOuterTof.second = 500.f;
zForwardTof = 270.f;
radiusRangeDiskTof = {30.f, 100.f};
} else if (pattern == "v3b1b") {
lengthOuterTof = 500.f;
dOuterTof.second = 500.f;
zForwardTof = 200.f;
radiusRangeDiskTof = {20.f, 68.f};
} else if (pattern == "v3b2a") {
lengthOuterTof = 440.f;
dOuterTof.second = 440.f;
zForwardTof = 270.f;
radiusRangeDiskTof = {30.f, 120.f};
} else if (pattern == "v3b2b") {
lengthOuterTof = 440.f;
dOuterTof.second = 440.f;
zForwardTof = 200.f;
radiusRangeDiskTof = {20.f, 68.f};
} else if (pattern == "v3b3") {
lengthOuterTof = 580.f;
dOuterTof.second = 580.f;
zForwardTof = 200.f;
radiusRangeDiskTof = {20.f, 68.f};
} else {
LOG(fatal) << "IOTOF layer pattern " << pattern << " not recognized, exiting";
}
if (itof) { // iTOF
mITOFLayer = itofSegmented ? ITOFLayer(std::string{GeometryTGeo::getITOFLayerPattern()},
radiusInnerTof, 0.f, lengthInnerTof, 0.f, x2x0, ITOFLayer::kBarrelSegmented,
24, 5.42, 10.0, 10)
: ITOFLayer(std::string{GeometryTGeo::getITOFLayerPattern()},
radiusInnerTof, 0.f, lengthInnerTof, 0.f, x2x0, ITOFLayer::kBarrel);
const std::string name = GeometryTGeo::getITOFLayerPattern();
const int nStaves = itofSegmented ? 24 : 0; // number of staves in segmented case
const double staveWidth = itofSegmented ? 5.42 : 0.0; // cm
const double staveTiltAngle = itofSegmented ? 10.0 : 0.0; // degrees
const int modulesPerStave = itofSegmented ? 10 : 0; // number of modules per stave in segmented case
mITOFLayer = ITOFLayer(name,
dInnerTof.first, 0.f, dInnerTof.second, 0.f, x2x0, ITOFLayer::kBarrelSegmented,
nStaves, staveWidth, staveTiltAngle, modulesPerStave);
}
if (otof) { // oTOF
mOTOFLayer = otofSegmented ? OTOFLayer(std::string{GeometryTGeo::getOTOFLayerPattern()},
radiusOuterTof, 0.f, lengthOuterTof, 0.f, x2x0, OTOFLayer::kBarrelSegmented,
62, 9.74, 5.0, 54)
: OTOFLayer(std::string{GeometryTGeo::getOTOFLayerPattern()},
radiusOuterTof, 0.f, lengthOuterTof, 0.f, x2x0, OTOFLayer::kBarrel);
const std::string name = GeometryTGeo::getOTOFLayerPattern();
const int nStaves = otofSegmented ? 62 : 0; // number of staves in segmented case
const double staveWidth = otofSegmented ? 9.74 : 0.0; // cm
const double staveTiltAngle = otofSegmented ? 5.0 : 0.0; // degrees
const int modulesPerStave = otofSegmented ? 54 : 0; // number of modules per stave in segmented case
mOTOFLayer = OTOFLayer(name,
dOuterTof.first, 0.f, dOuterTof.second, 0.f, x2x0, OTOFLayer::kBarrelSegmented,
nStaves, staveWidth, staveTiltAngle, modulesPerStave);
}
if (ftof) {
mFTOFLayer = FTOFLayer(std::string{GeometryTGeo::getFTOFLayerPattern()},
radiusRangeDiskTof.first, radiusRangeDiskTof.second, 0.f, zForwardTof, x2x0, FTOFLayer::kDisk); // fTOF
const std::string name = GeometryTGeo::getFTOFLayerPattern();
mFTOFLayer = FTOFLayer(name, radiusRangeDiskTof.first, radiusRangeDiskTof.second, 0.f, zForwardTof, x2x0, FTOFLayer::kDisk); // fTOF
}
if (btof) {
mBTOFLayer = BTOFLayer(std::string{GeometryTGeo::getBTOFLayerPattern()},
radiusRangeDiskTof.first, radiusRangeDiskTof.second, 0.f, -zForwardTof, x2x0, BTOFLayer::kDisk); // bTOF
const std::string name = GeometryTGeo::getBTOFLayerPattern();
mBTOFLayer = BTOFLayer(name, radiusRangeDiskTof.first, radiusRangeDiskTof.second, 0.f, -zForwardTof, x2x0, BTOFLayer::kDisk); // bTOF
}
}

Expand Down Expand Up @@ -338,4 +342,4 @@ o2::itsmft::Hit* Detector::addHit(int trackID, int detID, const TVector3& startP
} // namespace iotof
} // namespace o2

ClassImp(o2::iotof::Detector);
ClassImp(o2::iotof::Detector);