Data Formats

All PADME data formats are based on the ROOT framework and need the PadmeRoot library to be accessed.

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TRawEvent

Top data structure for events coming from the PADME DAQ system.

RunNumber

Run number (0 for dummy runs)

Int_t fRunNumber;
Int_t GetRunNumber()        { return fRunNumber; }
void  SetRunNumber(Int_t v) { fRunNumber = v;    }

EventNumber

Progressive number of event within run. Assigned by Merger.

UInt_t fEventNumber;
UInt_t GetEventNumber()       { return fEventNumber; }
void SetEventNumber(UInt_t v) { fEventNumber = v;    }

EventAbsTime

UTC time when event was merged. Assigned by Merger.

TTimeStamp fEventAbsTime;
TTimeStamp GetEventAbsTime()             { return fEventAbsTime; }
void       SetEventAbsTime(TTimeStamp t) { fEventAbsTime = t;    }

EventRunTime

Number of 80MHz clock ticks since the first event of the run. Computed from Trigger board internal clock counter status when trigger signal was produced.

N.B. event 0 has EventRunTime=0 by definition

ULong64_t fEventRunTime;
ULong64_t GetEventRunTime()       { return fEventRunTime; }
void SetEventRunTime(ULong64_t t) { fEventRunTime = t;    }

EventTrigMask

Event trigger mask. Only lower 8 bits are currently used. Obtained from Trigger board.

bit 0: BTF trigger
bit 1: cosmics trigger
bit 2: unused
bit 3: local trigger (from dual-timer module)
bit 4: unused
bit 5: reserved
bit 6: random trigger
bit 7: delayed trigger

UInt_t fEventTrigMask;
UInt_t GetEventTrigMask()               Return current value of trigger mask
void   SetEventTrigMask(UInt_t t)       Set trigger mask to given value
void   EventTrigMaskSetBit(UChar_t b)   Set bit <b> (b=0-7) of trigger mask to 1
void   EventTrigMaskUnsetBit(UChar_t b) Set bit <b> (b=0-7) of trigger mask to 0
Bool_t EventTrigMaskGetBit(UChar_t b)   Return status (1=true, 0=false) of bit <b> (b=0-7) of trigger mask

EventStatus

Event status mask. Only lower 2 bits are currently used. Defined by Merger.

bit 0: event is complete (1=all boards are present, 0=one or more boards are missing)
bit 1: autopass (0=autopass disabled, 1=autopass enabled)

UInt_t fEventStatus;                Return current value of event status mask
void SetEventStatus(UInt_t s)       Set event status mask to given value
void EventStatusSetBit(UChar_t b)   Set bit <b> (b=0-7) of event status mask to 1
void EventStatusUnsetBit(UChar_t b) Set bit <b> (b=0-7) of event status mask to 0
Bool_t EventStatusGetBit(UChar_t b) Return status (1=true, 0=false) of bit <b> (b=0-7) of event status mask

MissingADCBoards

Bit mask of missing ADC boards. Bits 0-28 (we have 29 boards) are set to 1 if corresponding board is missing in this event. Created by Merger.

UInt_t fMissingADCBoards;
UInt_t GetMissingADCBoards()               Return map of missing boards
void SetMissingADCBoards(UInt_t m)         Set map of missing boards
void MissingADCBoardsSetBit(UChar_t b)     Tag board <b> as missing
void MissingADCBoardsUnsetBit(UChar_t b)   Tag board <b> as present
Bool_t MissingADCBoardsGetBit(UChar_t b)   Check if board <b> is missing (1=missing, 0=not missing)

TriggerInfo

Pointer to TTriggerInfo data structure (see below) for this event.

TTriggerInfo* fTriggerInfo;
TTriggerInfo* TriggerInfo()    Return pointer to Trigger data structure

ADCBoards

TClonesArray of pointers to TADCBoard data structures (see below) contained in this event.

UChar_t fNADCBoards;
TClonesArray* fADCBoards;
UChar_t GetNADCBoards()       Return number of ADC boards contained in the array
TADCBoard* AddADCBoard();     Add an ADC board to the array and return pointer to its data structure
TADCBoard* ADCBoard(Int_t);   Return pointer to ADC board <b> data structure (0 <= b < fNADCBoards)

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TTriggerInfo

Information acquired from the Trigger board

TriggerCounter

8-bit counter. Counts number of triggers produced by the Trigger board.

UInt_t fTriggerCounter;
UInt_t GetTriggerCounter()          Return value of TriggerCounter for this event
void   SetTriggerCounter(UInt_t v)  Set value of TriggerCounter for this event

TriggerTime

40-bit counter of 80 MHz clock ticks produced by the Trigger board internal clock.

ULong64_t fTriggerTime;
ULong64_t GetTriggerTime()            Return value of TriggerTime for this event
void      SetTriggerTime(ULong64_t v) Set value of TriggerTime for this event

TriggerPattern

8-bit trigger pattern showing which trigger signal(s) produced this trigger. See EventTrigMask for details.

UInt_t fTriggerPattern;
UInt_t GetTriggerPattern()         Return value of TriggerPattern for this event
void   SetTriggerPattern(UInt_t v) Set value of TriggerPattern for this event