Transform¶

The transform module takes data read by aare.CtbRawFile and decodes it to a useful image format. Depending on detector it supports both analog and digital samples.

For convenience the following transform objects are defined with a short name

moench05 = Moench05Transform()
moench05_1g = Moench05Transform1g()
moench05_old = Moench05TransformOld()
matterhorn02 = Matterhorn02Transform()
adc_sar_04_64to16 = AdcSar04Transform64to16()
adc_sar_05_64to16 = AdcSar05Transform64to16()

class aare.transform.AdcSar04Transform64to16¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.AdcSar05060708Transform64to16¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.AdcSar05Transform64to16¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Matterhorn02TransceiverTransform¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Matterhorn10Transform(dynamic_range: int, num_counters: int)¶

Bases: object

Transforms Matterhorn10 chip data from a buffer of bytes (uint8_t) to a numpy array of uint8, uint16 depending on dynamic range. Assumes data taken with transceiver samples only.

Parameters:

dynamic_range (int) – How many bits a pixel is encoded dynamic range (4, 8, or 16)
num_counters (int) – num counters used (1 to 4)

Note

A matterhorn chip has 256 columns and 256 rows. A matterhornchip with dynamic range 16 and 2 counters thus requires 256*256*16*2/(2*64) = 1024 transceiver samples. (Per default 2 channels are enabled per transceiver sample, each channel storing 64 bits)

__call__(data)¶: Call self as a function.

compatibility(readingmode: ReadoutMode)¶

checks if Matterhorn10Transform is compatible with given parameters

Parameters:: readingmode (ReadoutMode) – Reading mode set
Raises:: ValueError – if not compatible

data_compatibility(data)¶

checks if data is compatible for transformation

Parameters:: data (np.ndarray) – data to be transformed, expected to be a 1D numpy array of uint8
Raises:: ValueError – if not compatible

class aare.transform.Moench03Transform¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Moench04AnalogTransform¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Moench05Transform¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Moench05Transform1g¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Moench05TransformOld¶

Bases: object

__call__(data)¶: Call self as a function.

class aare.transform.Mythen302Transform(offset=4)¶

Bases: object

Transform Mythen 302 test chip data from a buffer of bytes (uint8_t) to a uint32 numpy array of [64,3] representing channels and counters. Assumes data taken with rx_dbitlist 17 6, rx_dbitreorder 1 and Digital Samples = 2310 [(64x3x24)/2 + some extra]

Note

The offset is in number of bits 0-7

__call__(data: ndarray)¶

Transform buffer of data to a [64,3] np.ndarray of uint32.

Parameters:: data (np.ndarray) – Expected dtype: uint8
Returns:: image – uint32 array of size 64, 3
Return type:: np.ndarray

_n_channels = 64¶

_n_counters = 3¶