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The effective reponse of the current configuration is as follows
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NEWIDEAL_FLIGHT2 FLIGHT3 (CalXtalResponse v0r6p6, 7/21/05 expected GlastRelease > v6r9) RANGE MeV/ADC MAX_ADC SATURATION(MEV) PED(ADC) NOISE(ADC,MeV) LAC(ADC,MeV) LEX8 0.03 3550 109 510 613.03, 0.184 4366.6, 12.290 LEX1 0.27 3850 941 210 01.648, 0.1624 HEX8 2.16 3550 7676 510 6.0, 8 12.82396 HEX1 19.23 3850 74,016 210 20.16, 32 11.305 |
it incoperates the following improvements over the prievous version.
- HE gain setting is set to maximum energy range, raising single xtal saturation level.
- ULD values for all ranges and HEX1 saturation level are set to very close to 4095. The previous values were lower in an effort to avoid problems caused by channels w/ higher pedestals which is not an issue in ideal mode
- LAC threshold was raised to 1.3 MeV which is closer to the mean LAC threshold used for flight crystals
- pedestal noise levels are lower to better reflect the true behavior of the flight front-ends
- some values were rounded a bit just to make things simpler.increase of noise & LAC thresholds to better approximate real flight expectations
CURRENT VALUES - Ideal muon mode
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This documents the history of CalXtalReponse ideal calibration effective gain & noise for versions <= v0r3 at which point documentation will be included in the header of each xml file.calibrations.
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NEWIDEAL_FLIGHT2 (CalXtalResponse v0r3p1 -> v0r6p5, GlastRelease v6r6p0416 -> v6p9)
RANGE MeV/ADC MAX_ADC SATURATION(MEV) PED(ADC) NOISE(ADC,MeV) LAC(ADC,MeV)
LEX8 0.03 3550 109 510 6.0, 0.18 43, 1.29
LEX1 0.27 3850 941 210 0.6, 0.162
HEX8 2.16 3550 7676 510 6.0, 12.96
HEX1 19.23 3850 74,016 210 0.6, 11.52
it incoperates the following improvements over the prievous version.
- HE gain setting is set to maximum energy range, raising single xtal saturation level.
- ULD values for all ranges and HEX1 saturation level are set to very close to 4095. The previous values were lower in an effort to avoid problems caused by channels w/ higher pedestals which is not an issue in ideal mode
- LAC threshold was raised to 1.3 MeV which is closer to the mean LAC threshold used for flight crystals
- pedestal noise levels are lower to better reflect the true behavior of the flight front-ends
- some values were rounded a bit just to make things simpler.
Note: CalXtalResponse v0r3 was incorrect
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NEWIDEAL_FLIGHT (CalXtalReponse v0r2p8 -> v0r2p7, GlastRelease v6r6 -> v6r6p1) RANGE MeV/ADC MAX_ADC SATURATION(MEV) PED(ADC) NOISE(ADC,MeV) LAC(ADC,MeV) LEX8 0.03 3400 109 510 5.1, 0.153 30, 0.9 LEX1 0.27 3400 941 210 2.1, 0.567 HEX8 1.73 3400 5913 510 5.1, 8.823 HEX1 15.38 3400 52,000 210 2.1, 32.30 NEWIDEAL_MUON2 ( CalXtalReponse v0r2p6, GlastRelease v6r4 -> v6r5) RANGE MeV/ADC MAX_ADC SATURATION(MEV) PED(ADC) NOISE(ADC,MeV) LAC(ADC,MeV) LEX8 0.03 3400 109 510 5.1, 0.153 30, 0.9 LEX1 0.27 3400 941 210 2.1, 0.567 HEX8 0.17 3400 591 510 5.1, 0.867 HEX1 1.53 3400 5,200 210 2.1, 3.213 NEWIDEAL_MUON1 ( CalXtalReponse v0r2 -> v0r2p5, GlastRelease <= v6r3p2 ) RANGE MeV/ADC MAX_ADC SATURATION(MEV) PED(ADC) NOISE(ADC,MeV) LAC(ADC,MeV) LEX8 0.03 3500 112 510 5.1, 0.153 30, 0.9 LEX1 0.27 3500 968 210 2.1, 0.567 HEX8 0.17 3500 608 510 5.1, 0.867 HEX1 1.53 3500 5,352 210 2.1, 3.213 |
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