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FY2006 Golden DOM analysis

0. Summary
1. Comparison ROMEO and Data at 365nm
2. Comparison ROMEO and Data at 470nm
3. Comparison ROMEO and Data at 520nm
4. Comparison ROMEO and Data at 572nm

0.Summary

The results of comparison between ROMEO and the DOM calibration data for the FY2006 GDOMs are presented. The "-3.38 nm wavelength shift prescription", the same correction to give good agreement in the FY2005 GDOM analysis is made in the present analysis. PMT QE measured by Chiba and measured by Hamamatsu agrees each other in the 2006 Golden PMTs. We therefore use the Chiba numbers only in running ROMEO for this study. Another difference from the 2005 analysis is that the DOM calibration data is available for various wavelengths. It therfore allows us to examine if the correction determined by the 337 nm data would be valid in other wavelength numbers the IceCube observation is interested in.

The -3.38nm shift recipe was found to work well to the 2006 GDOMs for all the measured wavelengths numbers except 470 nm. The descripancy at this wavelengths are probably due to unknown systematic uncertainties of the LED in the measurement. The good agreements after the correction has been seen for all the GDOMs except TA2259- "BakeNeko". We do not understand the reasons, yet.

Description of the table

QE365nm[%]
PMT QE at 365nm. Determined by the Chiba measurement.
DOM data[%]
DOM QE at 365nm measured by Chiba.It includs systematic error about 7%.
sim-data[%]
mean of difference from GDOM Efficiency (data) AFTER compensation
fig
[diff]:The histogram of QE(sim-data)[%].
shift x[nm]
Shifted length of Wavelength Acceptance (of glass+gel) x-axis (wavelength axis)->corresponds uncertainty of transparency

1. Comparison ROMEO and Data at 365nm

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PMTName	QE365nm	DOM data	Before Compensation			correction	After Compensation
PMTName	QE365nm	DOM data	QE(sim-data)[%]	sim-data /data[%]	fig	shift[nm]	QE(sim-data)[%]	sim-data /data[%]	fig
TA1895	20.27	15.4	0.7317	4.8	[diff] [0~168deg] [180~348deg]	-3.38	0.5919	3.8	[diff] [0~168deg] [180~348deg]
TA2086	21.67	17.5	-0.4694	2.7	[diff] [0~168deg] [180~348deg]	-3.38	-0.5914	3.8	[diff] [0~168deg] [180~348deg]
TA2146	21.26	16.6	0.00327	2.0	[diff] [0~168deg] [180~348deg]	-3.38	-0.08077	0.49	[diff] [0~168deg] [180~348deg]
TA2182	22.40	18.0	-0.2318	1.3	[diff] [0~168deg] [180~348deg]	-3.38	-0.3294	1.8	[diff] [0~168deg] [180~348deg]
TA2259	21.79	14.0	1.71	12.2	[diff] [0~168deg] [180~348deg]	-3.38	1.643	11.7	[diff] [0~168deg] [180~348deg]
TA2349	20.48	15.3	0.2656	1.7	[diff] [0~168deg] [180~348deg]	-3.38	0.1498	0.98	[diff] [0~168deg] [180~348deg]
TA2374	19.80	16.0	0.08596	0.54	[diff] [0~168deg] [180~348deg]	-3.38	0.05532	0.35	[diff] [0~168deg] [180~348deg]
average	21.10	16.1	0.30	1.9	[diff] [0~168deg][180~348deg]	-3.38	0.20	1.2	[diff] [0~168deg][180~348deg]

DOM 2D Map Subtruction 365nm

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PMTname/DOMname	wavelength	After Compensation
TA1895/IeNeko	365nm
TA2086/DorobohNeko	365nm
TA2146/YamaNeko	365nm
TA2182/NoraNeko	365nm
TA2259/BakeNeko	365nm
TA2349/SuteNeko	365nm
TA2374/NemuriNeko	365nm

2. Comparison ROMEO and Data at 470nm

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PMTName	QE470nm	DOM data	Before Compensation			correction	After Compensation
PMTName	QE470nm	DOM data	QE(sim-data)[%]	sim-data /data[%]	fig	shift[nm]	QE(sim-data)[%]	sim-data /data[%]	fig
TA1895	17.13	18.9	-3.854	20.4	[diff] [0~168deg] [180~348deg]	-3.38	-3.777	20.0	[diff] [0~168deg] [180~348deg]
TA2086	18.49	18.0	-2.131	11.8	[diff] [0~168deg] [180~348deg]	-3.38	-2.082	11.6	[diff] [0~168deg] [180~348deg]
TA2146	18.21	18.3	-2.653	14.5	[diff] [0~168deg] [180~348deg]	-3.38	-2.564	14.0	[diff] [0~168deg] [180~348deg]
TA2182	18.93	19.0	-2.562	13.5	[diff] [0~168deg] [180~348deg]	-3.38	-2.47	13.0	[diff] [0~168deg] [180~348deg]
TA2259	19.21	16.8	-1.599	9.5	[diff] [0~168deg] [180~348deg]	-3.38	-1.507	9.0	[diff] [0~168deg] [180~348deg]
TA2349	16.80	14.0	-0.08515	0.61	[diff] [0~168deg] [180~348deg]	-3.38	-0.06959	0.5	[diff] [0~168deg] [180~348deg]
TA2374	16.71	18.5	-3.524	19.0	[diff] [0~168deg] [180~348deg]	-3.38	-3.448	18.6	[diff] [0~168deg] [180~348deg]
average	17.93	17.6	-2.3	13.3	[diff] [0~168deg][180~348deg]	-3.38	-2.27	12.9	[diff] [0~168deg][180~348deg]

DOM 2D Map Subtruction 470nm

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PMTname/DOMname	wavelength	After Compensation
TA1895/IeNeko	470nm
TA2086/DorobohNeko	470nm
TA2146/YamaNeko	470nm
TA2182/NoraNeko	470nm
TA2259/BakeNeko	470nm
TA2349/SuteNeko	470nm
TA2374/NemuriNeko	470nm

3.Comparison ROMEO and Data at 520nm

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PMTName	QE520nm	DOM data	Before Compensation			correction	After Compensation
PMTName	QE520nm	DOM data	QE(sim-data)[%]	sim-data /data[%]	fig	shift x[nm]	QE(sim-data)[%]	sim-data /data[%]	fig
TA1895	12.39	11.5	-0.4456	3.9	[diff] [0~168deg] [180~348deg]	-3.38	-0.387	3.7	[diff] [0~168deg] [180~348deg]
TA2086	13.43	11.4	0.3745	3.3	[diff] [0~168deg] [180~348deg]	-3.38	0.398	3.5	[diff] [0~168deg] [180~348deg]
TA2146	13.18	11.3	0.2561	2.3	[diff] [0~168deg] [180~348deg]	-3.38	0.3002	2.7	[diff] [0~168deg] [180~348deg]
TA2182	13.79	12.1	0.1448	1.2	[diff] [0~168deg] [180~348deg]	-3.38	0.197	1.6	[diff] [0~168deg] [180~348deg]
TA2259	12.71	9.24	1.038	11.2	[diff] [0~168deg] [180~348deg]	-3.38	1.087	11.8	[diff] [0~168deg] [180~348deg]
TA2349	11.60	8.21	1.588	19.3	[diff] [0~168deg] [180~348deg]	-3.38	1.606	19.6	[diff] [0~168deg] [180~348deg]
TA2374	11.62	11.0	-0.425	3.9	[diff] [0~168deg] [180~348deg]	-3.38	-0.352	3.2	[diff] [0~168deg] [180~348deg]
average	12.67	10.7	0.36	3.4	[diff] [0~168deg][180~348deg]	-3.38	0.41	3.8	[diff] [0~168deg][180~348deg]

DOM 2D Map Subtruction 520nm

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PMTname/DOMname	wavelength	After Compensation
TA1895/IeNeko	520nm
TA2086/DorobohNeko	520nm
TA2146/YamaNeko	520nm
TA2182/NoraNeko	520nm
TA2259/BakeNeko	520nm
TA2349/SuteNeko	520nm
TA2374/NemuriNeko	520nm

4. Comparison ROMEO and Data at 572nm

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PMTName	QE572nm	DOM data	Before Compensation			Compensation Mode	After Compensation
PMTName	QE572nm	DOM data	QE(sim-data)[%]	sim-data /data[%]	fig	shift x[nm]	QE(sim-data)[%]	sim-data /data[%]	fig
TA1895	5.17	5.78	-1.055	18.3	[diff] [0~168deg] [180~348deg]	-3.38	-1.034	17.9	[diff] [0~168deg] [180~348deg]
TA2086	5.86	5.41	-0.2024	3.7	[diff] [0~168deg] [180~348deg]	-3.38	-0.1704	3.1	[diff] [0~168deg] [180~348deg]
TA2146	5.75	5.24	-0.133	2.5	[diff] [0~168deg] [180~348deg]	-3.38	-0.08719	1.7	[diff] [0~168deg] [180~348deg]
TA2182	6.31	5.93	-0.2652	4.5	[diff] [0~168deg] [180~348deg]	-3.38	-0.2095	3.5	[diff] [0~168deg] [180~348deg]
TA2259	4.60	3.59	0.1769	4.9	[diff] [0~168deg] [180~348deg]	-3.38	0.2088	5.8	[diff] [0~168deg] [180~348deg]
TA2349	4.53	3.60	0.2812	7.8	[diff] [0~168deg] [180~348deg]	-3.38	0.3013	8.4	[diff] [0~168deg] [180~348deg]
TA2374	5.14	5.36	-0.6077	11.3	[diff] [0~168deg] [180~348deg]	-3.38	-0.5563	10.4	[diff] [0~168deg] [180~348deg]
average	5.34	4.99	-0.26	5.2	[diff] [0~168deg][180~348deg]	-3.38	-0.22	4.4	[diff] [0~168deg][180~348deg]

DOM 2D Map Subtraction 572nm

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PMTname/DOMname	wavelength	After Compensation
TA1895/IeNeko	572nm
TA2086/DorobohNeko	572nm
TA2146/YamaNeko	572nm
TA2182/NoraNeko	572nm
TA2259/BakeNeko	572nm
TA2349/SuteNeko	572nm
TA2374/NemuriNeko	572nm