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ATLAS Offline Software
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Sensitive detector implementation to record G4 hits in the Rpc detectors. More...
#include <RpcSensitiveDetector.h>
Public Member Functions | |
| ~RpcSensitiveDetector ()=default | |
| Default destructor. | |
| virtual G4bool | ProcessHits (G4Step *aStep, G4TouchableHistory *ROhist) override final |
| MuonSensitiveDetector (const std::string &name, const std::string &output_key, const std::string &trf_storeKey, const MuonGMR4::MuonDetectorManager *detMgr) | |
| Recycle the constructor from the MuonSensitiveDetector. | |
| virtual void | Initialize (G4HCofThisEvent *HCE) override final |
| Create the output container at the beginning of the event. | |
| bool | msgLvl (const MSG::Level lvl) const |
| Test the output level. | |
| MsgStream & | msg () const |
| The standard message stream. | |
| MsgStream & | msg (const MSG::Level lvl) const |
| The standard message stream. | |
| void | setLevel (MSG::Level lvl) |
| Change the current logging level. | |
Protected Member Functions | |
| bool | processStep (const G4Step *step) const |
| Checks whether the current step shall be processed at all. | |
| ActsTrk::GeometryContext | getGeoContext (const EventContext &ctx) const |
| Returns the current geometry context in the event. | |
| xAOD::MuonSimHit * | lastSnapShot (const Identifier &gasGapId, const G4Step *hitStep) |
| Returns the last snap shot of the traversing particle. | |
| xAOD::MuonSimHit * | propagateAndSaveStrip (const Identifier &hitId, const Amg::Transform3D &toGasGap, const G4Step *hitStep) |
| Records the G4Step in the sim hit. | |
| xAOD::MuonSimHit * | saveHit (const Identifier &hitId, const Amg::Vector3D &hitPos, const Amg::Vector3D &hitDir, const double globTime, const G4Step *hitStep) |
| Saves the current Step as a xAOD::MuonSimHit snapshot. | |
Protected Attributes | |
| const MuonGMR4::MuonDetectorManager * | m_detMgr {nullptr} |
| Pointer to the underlying detector manager. | |
Private Member Functions | |
| const MuonGMR4::RpcReadoutElement * | getReadoutElement (const G4TouchableHistory *touchHist) const |
| Retrieves the MuonReadoutElement associated to the rpc chamber in which the energy deposit is taking place. | |
| Identifier | getIdentifier (const ActsTrk::GeometryContext &gctx, const MuonGMR4::RpcReadoutElement *readOutEle, const Amg::Vector3D &hitAtGapPlane) const |
| Identify the gas gap in which the G4 hit produced. | |
| void | initMessaging () const |
| Initialize our message level and MessageSvc. | |
Private Attributes | |
| std::string | m_writeKey {} |
| Key under which the output container is stored in the G4 event. | |
| xAOD::MuonSimHitContainer * | m_outContainer {} |
| Pointer to the MuonSimHit output container. | |
| SG::ReadHandleKey< ActsTrk::DetectorAlignStore > | m_trfCacheKey |
| ReadHandleKey to the DetectorAlignmentStore caching the relevant transformations needed in this event. | |
| std::string | m_nm |
| Message source name. | |
| boost::thread_specific_ptr< MsgStream > | m_msg_tls |
| MsgStream instance (a std::cout like with print-out levels). | |
| std::atomic< IMessageSvc * > | m_imsg { nullptr } |
| MessageSvc pointer. | |
| std::atomic< MSG::Level > | m_lvl { MSG::NIL } |
| Current logging level. | |
| std::atomic_flag m_initialized | ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT |
| Messaging initialized (initMessaging). | |
Sensitive detector implementation to record G4 hits in the Rpc detectors.
The ProcessHits hook is called by Geant4 if the track enters a sensible Rpc gas gap volume. The TouchableHistory is used to deduce the associated readout element and then to identify the actual gas gap. The hit is then passed to the MuonSensitiveDetector class for event record
Definition at line 17 of file RpcSensitiveDetector.h.
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default |
Default destructor.
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protectedinherited |
Returns the current geometry context in the event.
| ctx | Event context to access the store gate service |
Definition at line 49 of file MuonSensitiveDetector.cxx.
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private |
Identify the gas gap in which the G4 hit produced.
| gctx | Geometry context to retrieve the center positions of the readout element's gas gaps |
| readOutEle | The previously identified readout element |
| hitAtGapPlane | Position of the G4 volume within the ATLAS coordinate system |
Definition at line 66 of file RpcSensitiveDetector.cxx.
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private |
Retrieves the MuonReadoutElement associated to the rpc chamber in which the energy deposit is taking place.
| touchHist | Touchable history of the G4 track to find the proper volume name from which the readout element can be deduced |
The fourth volume is the envelope volume of the rpc gas gap
Find the Detector element from the Identifier <STATIONETA>_<STATIONPHI>_<DOUBLETR>_<DOUBLETPHI>_<DOUBLETZ>
Definition at line 92 of file RpcSensitiveDetector.cxx.
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finaloverridevirtualinherited |
Create the output container at the beginning of the event.
Definition at line 38 of file MuonSensitiveDetector.cxx.
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privateinherited |
Initialize our message level and MessageSvc.
This method should only be called once.
Definition at line 39 of file AthMessaging.cxx.
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protectedinherited |
Returns the last snap shot of the traversing particle.
The G4 track must have stepped through the same volume. Otherwise, a nullptr is returned
| gasGapId | Identifier of the gasGap to consider |
| hitStep | Pointer to the current step |
There's only a snapshot if the last saved hit has the same Identifier & the same particle Link + G4Track Id
Definition at line 147 of file MuonSensitiveDetector.cxx.
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inlineinherited |
The standard message stream.
Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.
Definition at line 167 of file AthMessaging.h.
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inlineinherited |
The standard message stream.
Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.
Definition at line 182 of file AthMessaging.h.
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inlineinherited |
Test the output level.
| lvl | The message level to test against |
| true | Messages at level "lvl" will be printed |
Definition at line 151 of file AthMessaging.h.
| MuonG4R4::MuonSensitiveDetector::MuonSensitiveDetector | ( | const std::string & | name, |
| const std::string & | output_key, | ||
| const std::string & | trf_storeKey, | ||
| const MuonGMR4::MuonDetectorManager * | detMgr ) |
Recycle the constructor from the MuonSensitiveDetector.
Definition at line 46 of file MuonSensitiveDetector.cxx.
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finaloverridevirtual |
The Rpc readout may have two strip panels per a single gasGap --> extrapolate the step towards the gap centre
Fetch the local -> global transformation
Definition at line 25 of file RpcSensitiveDetector.cxx.
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protectedinherited |
Checks whether the current step shall be processed at all.
I.e. the particle needs to be charged, there's a minimum velocity needed and the step length must not vanish
| step | G4 step to consider |
Reject secondary particles
Sensitive detector is only sensitive to charged particles or Geantinos
Definition at line 58 of file MuonSensitiveDetector.cxx.
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protectedinherited |
Records the G4Step in the sim hit.
Hits are usually expressed at the center point of the step. Except for low-energy electrons where the endpoint of the random walk path is just extended
| hitId | Identifier of the gas gap or the tube in which the hit is recorded |
| toGaGap | Transform from the ATLAS global coordinates into the sensitive volume |
| hitStep | Step from which the particle's information and the pre and post step positions are fetched |
Fetch the step end-points
Hit direction as the momentum direction
Electrons randomly work through the gas instead of drifting through the gas -> take the prestep of the first snap shop inside the gas as pre step point
Definition at line 75 of file MuonSensitiveDetector.cxx.
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protectedinherited |
Saves the current Step as a xAOD::MuonSimHit snapshot.
| hitId | Identifier of the gasGap/ tube where the hit was deposited |
| hitPos | Local position of the hit expressed w.r.t gas gap coordinate system |
| hitDir | Local direction of the hit expressed w.r.t gas gap coordinate system |
| globTime | Global time of the hit |
| hitStep | Pointer to the step from which the hit information was derived. |
Definition at line 111 of file MuonSensitiveDetector.cxx.
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inherited |
Change the current logging level.
Use this rather than msg().setLevel() for proper operation with MT.
Definition at line 28 of file AthMessaging.cxx.
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mutableprivateinherited |
Messaging initialized (initMessaging).
Definition at line 141 of file AthMessaging.h.
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protectedinherited |
Pointer to the underlying detector manager.
Definition at line 107 of file MuonSensitiveDetector.h.
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mutableprivateinherited |
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mutableprivateinherited |
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mutableprivateinherited |
MsgStream instance (a std::cout like with print-out levels).
Definition at line 132 of file AthMessaging.h.
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privateinherited |
Message source name.
Definition at line 129 of file AthMessaging.h.
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privateinherited |
Pointer to the MuonSimHit output container.
Definition at line 60 of file MuonSensitiveDetector.h.
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privateinherited |
ReadHandleKey to the DetectorAlignmentStore caching the relevant transformations needed in this event.
Definition at line 63 of file MuonSensitiveDetector.h.
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privateinherited |
Key under which the output container is stored in the G4 event.
Definition at line 58 of file MuonSensitiveDetector.h.