ACNET Variables¶
Table of ACNET device names relevant to the NuMI muon monitors.
| Name | Index | Units | Timeline | Description | Code |
|---|---|---|---|---|---|
| E:HADMDS[i] | i=104, 152-199 | Volts | Dec-04 | Signal reading. These array buffers store the raw reading from each channel of the monitors' swic scanner ON $A9. $A9 is the event which signals beam is being delivered to NuMI. Reading comes from the VME front end. There is a conversion applied in the VME front end which takes the readings from ADC's to Volts. The swic scanners are triggered on $A9+0.01ms. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMDS[i] and E:MMA#DS[i] buffers are filled after $A9+0.01ms+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.9sec | |
| E:MMA#DS[i] | i=104-136, 152-199 #=1,2,3 |
Volts | Dec-04 | Signal reading. These array buffers store the raw reading from each channel of the monitors' swic scanner ON $A9. $A9 is the event which signals beam is being delivered to NuMI. Reading comes from the VME front end. There is a conversion applied in the VME front end which takes the readings from ADC's to Volts. The swic scanners are triggered on $A9+0.01ms. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMDS[i] and E:MMA#DS[i] buffers are filled after $A9+0.01ms+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.9sec | |
| E:HADMPD[i] | i=104, 152-199 | Volts | Jan-08, only correct after 10-Apr-09 | Pedestal. These array buffers store the raw reading from each channel of the monitors' swic scanner ON $AD. $AD is the event which comes ~1.2 secs before $A9. Thus there is no beam during this reading. Reading comes from the VME front end. There is a conversion applied in the VME front end which takes the readings from ADC's to Volts. The swic scanners are triggered on $AD+1.1s. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMPD[i] and E:MMA#PD[i] buffers are filled after $AD+1.1s+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.9sec. | |
| E:MMA#PD[i] | i=104-136, 152-199 #=1,2,3 |
Volts | Jan-08, only correct after 10-Apr-09 | Pedestal. These array buffers store the raw reading from each channel of the monitors' swic scanner ON $AD. $AD is the event which comes ~1.2 secs before $A9. Thus there is no beam during this reading. Reading comes from the VME front end. There is a conversion applied in the VME front end which takes the readings from ADC's to Volts. The swic scanners are triggered on $AD+1.1s. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMPD[i] and E:MMA#PD[i] buffers are filled after $AD+1.1s+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.9sec. | |
| E:HADINT | Volts | Dec-04 | These devices are the sum of the readings from each pixel of each monitor. No corrections are applied (raw data). Calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. | E:HADINT=SUM(i=104, 152-199)E:HADMDS[i] |
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| E:MM#INT | #=1,2,3 | Volts | Dec-04 | These devices are the sum of the readings from each pixel of each monitor. No corrections are applied (raw data). Calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. | E:MM#INT=SUM(i=104-136, 152-199)E:MMA1DS[i] |
| E:HADCNT | Volts | Jan-08, only correct after 10-Apr-09 | These devices are the pedestal corrected sum of the readings from each pixel of each monitor. For the DS buffers see above. For the PD buffers: The swic scanners are triggered on $AD+1.1s. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMPD[i] and E:MMA#PD[i] buffers are filled after $AD+1.1s+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.5sec |
E:HADCNT=SUM(i= 104, 152-199)[E:HADMDS[i]-E:HADMPD[i]] |
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| E:MM#CNT | #=1,2,3 | Volts | Jan-08, only correct after 10-Apr-09 | These devices are the pedestal corrected sum of the readings from each pixel of each monitor. For the DS buffers see above. For the PD buffers: The swic scanners are triggered on $AD+1.1s. The gate is 16.666s (must be to avoid 60Hz noise). The E:HADMPD[i] and E:MMA#PD[i] buffers are filled after $AD+1.1s+16.666ms+~3ms. Read into lumberjack in NUMI logger on AD+1.5sec |
E:MM#CNT=SUM(i=104-136, 152-199)[E:MMA1DS[i]-E:MMA#PD[i] |
| E:HADPRC | Volts | These devices are the pressure corrected(only) sum of the readings from each pixel of each monitor. These devices are computed on $A5 (timeline is $A5$AD$A9), so the computation is 1 spill behind. The time stamp is pushed back to the previous $AD+0.3s so when plotting the POT normalized quantities the readings match for each spill. These devices are logged in Lumberjack in the Stats logger. | E:HADPRC=E:HADINT*[1.0-0.00105*(E:HMGPR-700.0)] |
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| E:MM#PRC | #=1,2,3 | Volts | These devices are the pressure corrected(only) sum of the readings from each pixel of each monitor. These devices are computed on $A5 (timeline is $A5$AD$A9), so the computation is 1 spill behind. The time stamp is pushed back to the previous $AD+0.3s so when plotting the POT normalized quantities the readings match for each spill. These devices are logged in Lumberjack in the Stats logger. |
E:MM#PRC=E:MM#INT*[1.0-0.00105*(E:MM#GPR-800.0)] |
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| E:HADCOR | Volts | These devices are the pedestal, calibration and pressure corrected sum of the readings from each pixel of each monitor. hadcal[] and mm#cal[] are the calibration constants determined before the monitors' installation (see Dharma's thesis). These devices are computed on $A5 (timeline is $A5$AD$A9), so the computation is 1 spill behind. The time stamp is pushed back to the previous $AD+0.3s so when plotting the POT normalized quantities the readings match for each spill. These devices are logged in Lumberjack in the Stats logger. | E:HADCOR={SUM(i=104,152-199)[(E:HADMDS[i]–E:HADMPD[i])*hadcal[i]]}*[1.0-0.00105*(E:HMGPR-700.0)] |
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| E:MM#COR | #=1,2,3 | Volts | These devices are the pedestal, calibration and pressure corrected sum of the readings from each pixel of each monitor. hadcal[] and mm#cal[] are the calibration constants determined before the monitors' installation (see Dharma's thesis). These devices are computed on $A5 (timeline is $A5$AD$A9), so the computation is 1 spill behind. The time stamp is pushed back to the previous $AD+0.3s so when plotting the POT normalized quantities the readings match for each spill. These devices are logged in Lumberjack in the Stats logger. | E:MM#COR={SUM(i=104,152-199)[(E:MMA#DS[i]–E:MMA#PD[i])*mm#cal[i]]}*[1.0-0.00105*(E:MM#GPR-800.0)] |
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| E:HADXAV | Inches | Dec-04 | These devices are the gaussian average of the X and Y monitor profiles. X and Y profiles are made using E:HADMDS[i] and E:MMA#DS[i]. The profiles are fit to a gaussian. Might be calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. |
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| E:MM#XAV | #=1,2,3 | Inches | Dec-04 | These devices are the gaussian average of the X and Y monitor profiles. X and Y profiles are made using E:HADMDS[i] and E:MMA#DS[i]. The profiles are fit to a gaussian. Might be calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. |
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| E:HADYAV | Inches | Dec-04 | These devices are the gaussian average of the X and Y monitor profiles. X and Y profiles are made using E:HADMDS[i] and E:MMA#DS[i]. The profiles are fit to a gaussian. Might be calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. |
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| E:MM#YAV | #=1,2,3 | Inches | Dec-04 | These devices are the gaussian average of the X and Y monitor profiles. X and Y profiles are made using E:HADMDS[i] and E:MMA#DS[i]. The profiles are fit to a gaussian. Might be calculated in VME front end. These devices are computed after the E:HADMDS[i] and E:MMA#DS[i] buffers are filled. Read into lumberjack in NUMI logger on AD+1.5sec. |
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| E:HMHVi | i=1-8 | Volts | Before Nov-07, all droges set to 130V. After Nov-07, all droges set to 90V. |
The high voltage readings from the droges supplying the HV to the hadron monitor. Logged in LUMBERJACK in the NuMI 2min datalogger. E:HMHV4 is also logged in the NUMI AD+1.5s datalogger. | |
| E:MM#HVj | #=1,2,3 j=1,2,3 |
Volts | The high voltage readings from the droges supplying the HV to muon monitors. All HV droges are set to 300V. Logged in LUMBERJACK in the NuMI 2min datalogger. | ||
| E:HMGPR | Torr | These are the pressures in the gas lines of each monitor. The measurement is taken at the underground electronics rack just after the gas line fans out to the individual monitors. Logged in LUMBERJACK in the NuMI 2min datalogger. | |||
| E:MM#GPR | #=1,2,3 | Torr | These are the pressures in the gas lines of each monitor. The measurement is taken at the underground electronics rack just after the gas line fans out to the individual monitors. Logged in LUMBERJACK in the NuMI 2min datalogger. | ||
| E:HMRTD | Fahrenheit | Before Jul-10 | Temperature at the location of the hadron monitor. In Nov 2007 the hadron monitor was replaced. The new hadron monitor does not have a temperature sensor. Logged in LUMBERJACK in the NuMI 2min datalogger. | ||
| E:HMRTD | p.p.m. | After Jul-10 | The O2 content in the helium gas line measured at the underground electronics rack just before the line fans out to the individual monitors. Logged in LUMBERJACK in the NuMI 2min datalogger. | ||
| E:MM#RTD | #=1,2,3 | Fahrenheit | Temperatures in alcoves 1, 2 and 3, respectively. The measurement is taken somewhere near the monitor itself. Logged in LUMBERJACK in the NuMI 2min datalogger. | ||
| E:HMGF | Torr | Flow rates of the helium gas to the the hadron monitor, and muon monitors 1, 2 and 3 respectively. The measurement is taken by flow meters at the underground electronics rack just after the gas line fans out to the individual monitors. The flow meter needle valve can be manually controlled to change the flow rates. Logged in LUMBERJACK in the NuMI 2min datalogger. |
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| E:MM#GF | #=1,2,3 | Torr | Flow rates of the helium gas to the the hadron monitor, and muon monitors 1, 2 and 3 respectively. The measurement is taken by flow meters at the underground electronics rack just after the gas line fans out to the individual monitors. The flow meter needle valve can be manually controlled to change the flow rates. Logged in LUMBERJACK in the NuMI 2min datalogger. |
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| E:MGSMPD[i] | i=104,105,106 | These devices are the readings from the gas calibration chamber located in the gas exhaust line of muon monitors 1(104), 2(105) and 3(106). No corrections are applied (raw data). Reading comes from the VME front end. There is a conversion applied in the VME front end which takes the readings from ADC's to Volts. The swic scanner is triggered on $AD+0.1s. The gate is .5s. The E:MGSMPD buffer is filled after $AD+0.1s+0.5s+~3ms. Read into lumberjack in NUMI logger on AD+1.5sec. |
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| E:MGSMM# | #=1,2,3 | These devices are the pressure corrected readings from the gas calibration chamber located in the gas exhaust line of the muon monitors. These devices are computed on $A5 (timeline is $A5$AD$A9), so the computation is 1 spill behind. The time stamp is pushed back to the previous $AD+0.3s. These devices are logged in Lumberjack in the Stats logger. |
E:MGSMM1=E:MGSMPD[104]*[1.0-0.00141*(E:MM1GPR–800.0)] |
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| E:MM#GPD | #=1,2,3 | Torr | The pressures in the gas lines of the muon monitors. The measurement is taken at the location of the respective gas calibration chambers. Currently only pressure transducers in the lines of MM1 and MM2 exist. Because the device that reads out the MM1 transducer is broken the MM1 transducer is connected to the MM2 read out and the MM2 transducer is connected to the MM3 readout. Also, the readings are wrong. Reading are ~500torr, but they should be closer to 800torr. Logged in LUMBERJACK in the NuMI 2min datalogger. |
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| E:MGSHP# | #=1,2 | psi | The pressures in the gas lines of the manifold gas supply bottles(the 8pack) and the single spare bottle, respectively. Logged in LUMBERJACK in the FixTr 2min datalogger. | ||
| E:MGSPUP | psi | The pressures in the gas lines after the pressure regulation which steps the pressure from the bottles down from 2000psi to 60psi. Measured just after the step down at the gas supply rack in the MINOS service building. Logged in LUMBERJACK in the FixTr 2min datalogger. | |||
| E:MGSP | psi | The pressures in the gas lines after the pressure regulation which steps the pressure from the bottles down from 2000psi to 60psi. Measured at the underground electronics rack before the gas line fan out to the individual monitors. Logged in LUMBERJACK in the NUMI 2min datalogger. |