def special_nist_bcars1_sample_scan():
    """
    Return import attributes particular to the "BCARS 1" system at NIST
    """
    rosetta = {}
    rosetta['XPixelSize'] = 'X scan Parameters.x step size (um)'
    rosetta['XStart'] = 'X scan Parameters.x start (um)'
    rosetta['XStop'] = 'RasterScanParams.FastAxisStop'
    rosetta['XLength'] = 'X scan Parameters.x steps'
    rosetta['XLabel'] = 'RasterScanParams.FastAxis'
    rosetta['XUnits'] = ['RasterScanParams.FastAxisUnits', '!', '$\\mu m$']
    rosetta['YPixelSize'] = 'Y scan Paramters.y step size (um)'
    rosetta['YStart'] = 'Y scan Paramters.y start (um)'
    rosetta['YStop'] = 'RasterScanParams.SlowAxisStop'
    rosetta['YLength'] = 'Y scan Paramters.y steps'
    rosetta['YLabel'] = 'RasterScanParams.SlowAxis'
    rosetta['YUnits'] = ['RasterScanParams.SlowAxisUnits', '!', '$\\mu m$']
    rosetta['ZPosition'] = 'Z scan parameters.z start (um)'
    rosetta['ZLabel'] = 'RasterScanParams.FixedAxis'
    rosetta['ColorCenterWL'] = ['Frequency Calibration.CenterWavelength',
        '!', 696.831]
    rosetta['ColorUnits'] = ['!', 'nm']
    rosetta['ColorChannels'] = ['Frequency Calibration.freq index length',
        '!', 512]
    rosetta['ColorCalibWL'] = ['Frequency Calibration.CenterWavelength',
        '!', 696.831]
    rosetta['ColorSlope'] = ['Frequency Calibration.Slope', '!', -0.50418919]
    rosetta['ColorIntercept'] = ['Frequency Calibration.Intercept', '!', 
        825.651318]
    rosetta['ColorPolyVals'] = ['Frequency Calibration.Polyvals', '!', [-
        0.50418919, 825.651318]]
    rosetta['ColorProbe'] = ['Frequency Calibration.probe(nm)', '!', 830.0]
    rosetta['ColorWnMode'] = ['!', True]
    return rosetta
