Class StruckScaler

java.lang.Object

org.jlab.detector.scalers.DaqScaler

org.jlab.detector.scalers.StruckScaler

public class StruckScaler
extends DaqScaler

The Struck is a multi-channel scaler that can buffer many readings over very short dwell times, advanced by and latched to input control signals. The CLAS12 DAQ uses this device to readout helicity-latched counts for the purpose of beam-spin asymmetry measurements, and that's what this class is geared towards. At some point over the years, readout patterns changed and this class alone is no longer sufficient. See StruckScalers instead.

Author:

baltzell

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	StruckScaler.Input	Convenience for mapping channel number in RAW::scaler to input signal.
static enum	StruckScaler.Interval	Convenience for mapping channel number in RAW::scaler to scaler period.

Field Summary

Fields

Modifier and Type	Field	Description
protected HelicityBit	helicity
protected StruckScaler.Interval	interval
protected HelicityBit	quartet
static final int	SLOT_GATED
static final int	SLOT_UNGATED

Fields inherited from class org.jlab.detector.scalers.DaqScaler

beamCharge, beamChargeGated, beamChargeGatedSLM, beamChargeSLM, clock, clockFreq, CRATE, fcup, gatedClock, gatedFcup, gatedSlm, livetime, RAWBANKNAME, slm

Constructor Summary

Constructors

Constructor	Description
StruckScaler()
StruckScaler(org.jlab.jnp.hipo4.data.Bank bank, org.jlab.utils.groups.IndexedTable fcupTable, org.jlab.utils.groups.IndexedTable slmTable, org.jlab.utils.groups.IndexedTable helTable)	Deprecated.

Method Summary

Modifier and Type	Method	Description
HelicityBit	getHelicity()
HelicityInterval	getHelicityInterval(long clock, org.jlab.utils.groups.IndexedTable helTable)	Determine whether the clock looks more like tsettle or tstable periods.
HelicityInterval	getHelicityInterval(org.jlab.utils.groups.IndexedTable helTable)	Determine whether the clock looks more like tsettle or tstable periods.
StruckScaler.Interval	getInterval()
HelicityBit	getQuartet()
final StruckScaler.Interval	getStableInterval(org.jlab.jnp.hipo4.data.Bank bank, org.jlab.utils.groups.IndexedTable helTable)	Look for the first ungated clock readout whose value corresponds to the helicity tsettle period, and return it's Struck period.
void	setHelicity(HelicityBit b)
void	setInterval(StruckScaler.Interval intvl)
void	setQuartet(HelicityBit b)
String	toString()

Methods inherited from class org.jlab.detector.scalers.DaqScaler

add, calibrate, calibrate, getBeamCharge, getBeamChargeGated, getBeamChargeGatedSLM, getBeamChargeSLM, getClock, getClockSeconds, getFcup, getGatedClock, getGatedClockSeconds, getGatedFcup, getGatedSlm, getLivetime, getLivetimeClock, getLivetimeFcup, getLivetimeSLM, getSlm, setBeamCharge, setBeamChargeGated, setBeamChargeGatedSLM, setBeamChargeSLM, setLivetime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

helicity

protected HelicityBit helicity

quartet

protected HelicityBit quartet

SLOT_GATED

public static final int SLOT_GATED

See Also:

• Constant Field Values

SLOT_UNGATED

public static final int SLOT_UNGATED

See Also:

• Constant Field Values

interval

protected StruckScaler.Interval interval

Constructor Details

StruckScaler

public StruckScaler()

StruckScaler

@Deprecated
public StruckScaler(org.jlab.jnp.hipo4.data.Bank bank,
 org.jlab.utils.groups.IndexedTable fcupTable,
 org.jlab.utils.groups.IndexedTable slmTable,
 org.jlab.utils.groups.IndexedTable helTable)

Deprecated.

This made sense when we only had one tsettle+tstable in each readout.

Parameters:

bank - a RAW::scaler bank

fcupTable - /runcontrol/fcup CCDB table

slmTable - /runcontrol/slm CCDB table

helTable - /runcontrol/helicity CCDB table

Method Details

setHelicity

public void setHelicity(HelicityBit b)

setQuartet

public void setQuartet(HelicityBit b)

getHelicity

public HelicityBit getHelicity()

getQuartet

public HelicityBit getQuartet()

setInterval

public void setInterval(StruckScaler.Interval intvl)

getInterval

public StruckScaler.Interval getInterval()

toString

public String toString()

Overrides:

toString in class DaqScaler

getHelicityInterval

public HelicityInterval getHelicityInterval(long clock,
 org.jlab.utils.groups.IndexedTable helTable)

Determine whether the clock looks more like tsettle or tstable periods.

Parameters:

clock - the value of this clock readout

helTable - /runcontrol/helicity CCDB table

Returns:

the type of helicity period

getHelicityInterval

public HelicityInterval getHelicityInterval(org.jlab.utils.groups.IndexedTable helTable)

Determine whether the clock looks more like tsettle or tstable periods.

Parameters:

helTable - /runcontrol/helicity CCDB table

Returns:

the type of helicity period

getStableInterval

public final StruckScaler.Interval getStableInterval(org.jlab.jnp.hipo4.data.Bank bank,
 org.jlab.utils.groups.IndexedTable helTable)

Look for the first ungated clock readout whose value corresponds to the helicity tsettle period, and return it's Struck period.

Parameters:

bank - a RAW::scaler bank

helTable - /runcontrol/helicity CCDB table

Returns:

the type of Struck period