CheckZS Class Reference

Inheritance diagram for CheckZS:

Public Member Functions
def	__init__ (self, thresholdSN)
def	event (self)

Public Attributes
	thresholdSN
	SNR threshold.

Detailed Description

Check that SVVDShaperDigits are correctly zero-suppressed.

Definition at line 22 of file zero_suppression.py.

Constructor & Destructor Documentation

__init__()

def __init__	(		self,
			thresholdSN
	)

initialize python module

Definition at line 25 of file zero_suppression.py.

    def __init__(self, thresholdSN):
        '''initialize python module'''
        super().__init__()
 
        
        self.thresholdSN = thresholdSN
 

Member Function Documentation

event()

def event

(

self

)

event

Definition at line 32 of file zero_suppression.py.

    def event(self):
        '''event'''
        storedigits = Belle2.PyStoreArray("SVDShaperDigits")
        gc = Belle2.VXD.GeoCache.getInstance()
        for digit in storedigits:
            info = gc.get(digit.getSensorID())
            isU = digit.isUStrip()
            noise_in_e = info.getElectronicNoiseU() if isU else info.getElectronicNoiseV()
            adu_equivalent = info.getAduEquivalentU() if isU else info.getAduEquivalentV()
            noise_in_adu = noise_in_e / adu_equivalent
            threshold_in_adu = self.thresholdSN * noise_in_adu
            samples = digit.getSamples()
            for s in samples:
                if s > threshold_in_adu:
                    break
            else:
                basf2.B2FATAL(f"Found digit under threshold: {digit.to_string()}")
 
 

Member Data Documentation

thresholdSN

thresholdSN

SNR threshold.

Definition at line 30 of file zero_suppression.py.

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The documentation for this class was generated from the following file:

• svd/tests/zero_suppression.py