|
- ADFrameType |
+ ADFrameType
+
- $(P)$(R)FrameType |
+ $(P)$(R)FrameType
+
The choices for the Pixirad are:
- - "1 color low". One color image using threshold 1.
- - "1 color high". One color image using threshold 2.
+ - "1 color low". One color image using threshold 1. On the PII this image is all
+ photons with energies above threshold 1. On the PIII this is all photons with energies
+ above threshold 1 and below threshold 2.
+ - "1 color high". One color image using threshold 2. In principle threshold 1 is
+ ignorred in this mode. However, on the PIII this only works correctly if threshold1
+ is less than threshold 2.
- "2 color". Two color image using thesholds 1 and 2.
- "4 color". Four color image using thesholds 1, 2, 3, and 4.
- "1 color DTF". One color deadtime-free image using theshold 1.
@@ -123,16 +136,18 @@
Note that the dimensions of the NDArrays from the Pixirad driver depend on the value
of FrameType.
- 1 color arrays are 2-D with dimensions [MaxSizeX, MaxSizeY].
- 2 color arrays are 3-D with dimensions [MaxSizeX, MaxSizeY, 2].
- 4 color arrays are 3-D with dimensions[MaxSizeX, MaxSizeY, 4].
+ 1 color arrays are 2-D with dimensions [SIZEX, SIZEY].
+ 2 color arrays are 3-D with dimensions [SIZEX, SIZEY, 2].
+ 4 color arrays are 3-D with dimensions[SIZEX, SIZEY, 4].
|
|
- Parameter index variable |
+ Parameter index variable
+
- asyn interface |
+ asyn interface
+
- Access |
+ Access
+
- Description |
+ Description
+
- drvInfo string |
+ drvInfo string
+
- EPICS record name |
+ EPICS record name
+
- EPICS record type |
+ EPICS record type
+
|
- Cooling parameters |
+ System information
+
Pixirad
- CoolingState |
+ SystemInfo
+
- asynInt32 |
+ asynOctet
+
- r/w |
+ r/o
+
+
+ A string containing information about the detector, read directly from the detector.
+ |
- The state of the Peltier cooler. Choices are "Off" (0) and "On" (1). |
+ SYSTEM_INFO
+
- COOLING_STATE |
+ $(P)$(R)SystemInfo
+
+
+ waveform
+ |
+
+
+ |
+ Counting mode (PIII only)
+ |
+
+
+
+ Pixirad
+ CountMode
+ |
+
+ asynInt32
+ |
+
+ r/w
+ |
+
+ Selects the counting mode. Choices are:
+
+ 0: Normal
+
+ 1: NPI This stands for Neighbor Pixel Inhibit. It prevents counting a photon more
+ than once when charge-sharing occurs.
+ 2: NPISUM This stands for Neighbor Pixel Inhibit with Summation. It sums the charge
+ from adjacent pixels when charge-sharing occurs.
+ |
+
+ COUNT_MODE
+ |
+
+ $(P)$(R)CountMode
+
+ $(P)$(R)CountMode_RBV
+ |
+
+ mbbo
+
+ mbbi
+ |
+
+
+ |
+ Cooling parameters
+ |
+
+
+
+ Pixirad
+ CoolingState
+ |
+
+ asynInt32
+ |
+
+ r/w
+ |
+
+ The state of the Peltier cooler. Choices are "Off" (0) and "On" (1).
+ |
+
+ COOLING_STATE
+ |
$(P)$(R)CoolingState
- $(P)$(R)Cooling_RBV |
+ $(P)$(R)Cooling_RBV
+
bo
- bi |
+ bi
+
Pixirad
- HotTemperature |
+ HotTemperature
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The readback of the temperature (C) on the hot side of the Peltier cooler. |
+ The readback of the temperature (C) on the hot side of the Peltier cooler.
+
- HOT_TEMPERATURE |
+ HOT_TEMPERATURE
+
- $(P)$(R)HotTemperature_RBV |
+ $(P)$(R)HotTemperature_RBV
+
- ai |
+ ai
+
Pixirad
- BoxTemperature |
+ BoxTemperature
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The readback of the ambient temperature (C) in the detector box. |
+ The readback of the ambient temperature (C) in the detector box.
+
- BOX_TEMPERATURE |
+ BOX_TEMPERATURE
+
- $(P)$(R)BoxTemperature_RBV |
+ $(P)$(R)BoxTemperature_RBV
+
- ai |
+ ai
+
Pixirad
- BoxHumidity |
+ BoxHumidity
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The readback of the ambient relative humidity (%) in the detector box. |
+ The readback of the ambient relative humidity (%) in the detector box.
+
- BOX_HUMIDITY |
+ BOX_HUMIDITY
+
- $(P)$(R)BoxHumidity_RBV |
+ $(P)$(R)BoxHumidity_RBV
+
- ai |
+ ai
+
Pixirad
- DewPoint |
+ DewPoint
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The calculated dew point (C) based on the BoxHumidity. |
+ The calculated dew point (C) based on the BoxHumidity.
+
- DEW_POINT |
+ DEW_POINT
+
- $(P)$(R)DewPoint_RBV |
+ $(P)$(R)DewPoint_RBV
+
- ai |
+ ai
+
Pixirad
- PeltierPower |
+ PeltierPower
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The power level of the Peltier cooler (%). |
+ The power level of the Peltier cooler (%).
+
- PELTIER_POWER |
+ PELTIER_POWER
+
- $(P)$(R)PeltierPower_RBV |
+ $(P)$(R)PeltierPower_RBV
+
- ai |
+ ai
+
Pixirad
- CoolingStatus |
+ CoolingStatus
+
- asynInt32 |
+ asynInt32
+
- r/o |
+ r/o
+
The status of the cooling system. Values are:
0 - "OK"
@@ -352,26 +502,34 @@
6 - "T Cold Error" This means that the cold temperature is greater than 40 C.
If the CoolingStatus_RBV is any of the Error states then the driver will automatically
- turn off the Peltier cooler. |
+ turn off the Peltier cooler.
+
- COOLING_STATUS |
+ COOLING_STATUS
+
- $(P)$(R)CoolingStatus_RBV |
+ $(P)$(R)CoolingStatus_RBV
+
- mbbi |
+ mbbi
+
|
- High voltage parameters |
+ High voltage parameters
+
Pixirad
- HVMode |
+ HVMode
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
High voltage mode. Choices are:
0 - "Manual"
@@ -383,26 +541,33 @@
when an acquisition is started and automatically turn off when the acquisition is
complete. This can improve the image quality, because the detector is subject to
charge trapping when used with high x-ray fluxes, and periodically turning off the
- high voltage helps to clear the trapped charge. |
+ high voltage helps to clear the trapped charge.
+
- HV_MODE |
+ HV_MODE
+
$(P)$(R)HVMode
- $(P)$(R)HVMode_RBV |
+ $(P)$(R)HVMode_RBV
+
bo
- bi |
+ bi
+
Pixirad
- HVState |
+ HVState
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
High voltage state. Choices are:
0 - "Off"
@@ -410,87 +575,115 @@
1 - "On"
This record turns the high voltage off and on. If HVMode is Auto then the high voltage
- will be turned on during an acquisition even if HVState is off. |
+ will be turned on during an acquisition even if HVState is off.
+
- HV_STATE |
+ HV_STATE
+
$(P)$(R)HVState
- $(P)$(R)HVState_RBV |
+ $(P)$(R)HVState_RBV
+
bo
- bi |
+ bi
+
Pixirad
- HVValue |
+ HVValue
+
- asynFloat64 |
+ asynFloat64
+
- r/w |
+ r/w
+
The high voltage value that will be applied to the detector when HVState=On or when
HVMode=Auto and an acquisition is in progress. The allowed range is 0 to 400 volts.
|
- HV_VALUE |
+ HV_VALUE
+
$(P)$(R)HVValue
- $(P)$(R)HVValue_RBV |
+ $(P)$(R)HVValue_RBV
+
ao
- ai |
+ ai
+
Pixirad
- HVActual |
+ HVActual
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The actual high voltage currently being applied to the detector. |
+ The actual high voltage currently being applied to the detector.
+
- HV_ACTUAL |
+ HV_ACTUAL
+
- $(P)$(R)HVActual_RBV |
+ $(P)$(R)HVActual_RBV
+
- ai |
+ ai
+
Pixirad
- HVCurrent |
+ HVCurrent
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The actual high voltage current. |
+ The actual high voltage current.
+
- HV_CURRENT |
+ HV_CURRENT
+
- $(P)$(R)HVCurrent_RBV |
+ $(P)$(R)HVCurrent_RBV
+
- ai |
+ ai
+
|
- Threshold parameters |
+ Threshold parameters
+
Pixirad
- ThresholdN (N=1-4) |
+ ThresholdN (N=1-4)
+
- asynFloat64 |
+ asynFloat64
+
- r/w |
+ r/w
+
Requested threshold energy in keV. There are 4 energy thresholds. The threshold
energies are controlled by a single high-resolution register (VThMax) with values
@@ -500,254 +693,389 @@
as possible to their requested values using only the low-resolution registers.
|
- THRESHOLDN (N=1-4) |
+ THRESHOLDN (N=1-4)
+
$(P)$(R)ThresholdN (N=1-4)
- $(P)$(R)ThresholdN_RBV (N=1-4) |
+ $(P)$(R)ThresholdN_RBV (N=1-4)
+
ao
- ai |
+ ai
+
Pixirad
- ThresholdActualN (N=1-4) |
+ ThresholdActualN (N=1-4)
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
Actual threshold energy in keV. This will be as close as possible to the requested
- value, subject to the constraints and algorithm explained above. |
+ value, subject to the constraints and algorithm explained above.
+
- THRESHOLD_ACTUALN (N=1-4) |
+ THRESHOLD_ACTUALN (N=1-4)
+
- $(P)$(R)ThresholdActualN_RBV (N=1-4) |
+ $(P)$(R)ThresholdActualN_RBV (N=1-4)
+
- ai |
+ ai
+
+
+
+
+ Pixirad
+ HitThreshold
+ |
+
+ asynFloat64
+ |
+
+ r/w
+ |
+
+ This is only used on the PIII ASIC. It sets the threshold in keV where the PIII
+ will consider a photon "hit" to have ocurred. This threshold is mainly intended
+ for use when CountMode=NPI or NPISUM. However, even when CountMode=Normal it must
+ always be set to a value less than Threshold 1.
+ |
+
+ HIT_THRESHOLD
+ |
+
+ $(P)$(R)HitThreshold
+ $(P)$(R)HitThreshold_RBV
+ |
+
+ ao
+
+ ai
+ |
+
+
+
+ Pixirad
+ HitThresholdActual
+ |
+
+ asynFloat64
+ |
+
+ r/o
+ |
+
+ Actual hit threshold energy in keV. This will be as close as possible to the requested
+ value, subject to the constraints and algorithm explained above.
+ |
+
+ HIT_THRESHOLD_ACTUAL
+ |
+
+ $(P)$(R)HitThresholdActual_RBV
+ |
+
+ ai
+ |
|
- External sync parameters |
+ External sync parameters
+
Pixirad
- SyncInPolarity |
+ SyncInPolarity
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
Polarity of the Sync In signal. Choices are:
0 - "Pos."
- 1 - "Neg." |
+ 1 - "Neg."
+
- SYNC_IN_POLARITY |
+ SYNC_IN_POLARITY
+
$(P)$(R)SyncInPolarity
- $(P)$(R)SyncInPolarity_RBV |
+ $(P)$(R)SyncInPolarity_RBV
+
bo
- bi |
+ bi
+
Pixirad
- SyncOutPolarity |
+ SyncOutPolarity
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
Polarity of the Sync Out signal. Choices are:
0 - "Pos."
- 1 - "Neg." |
+ 1 - "Neg."
+
- SYNC_OUT_POLARITY |
+ SYNC_OUT_POLARITY
+
$(P)$(R)SyncOutPolarity
- $(P)$(R)SyncOutPolarity_RBV |
+ $(P)$(R)SyncOutPolarity_RBV
+
bo
- bi |
+ bi
+
Pixirad
- SyncOutFunction |
+ SyncOutFunction
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
Function of the Sync Out signal. Choices are:
0 - "Shutter" The Sync Out signal is high while the detector is collecting.
1 - "Read done" The Sync Out signal outputs a pulse when readout is complete.
- 2 - "Read" The Sync Out signal is high while the detector is reading out. |
+ 2 - "Read" The Sync Out signal is high while the detector is reading out.
+
- SYNC_OUT_FUNCTION |
+ SYNC_OUT_FUNCTION
+
$(P)$(R)SyncOutFunction
- $(P)$(R)SyncOutFunction_RBV |
+ $(P)$(R)SyncOutFunction_RBV
+
mbbo
- mbbi |
+ mbbi
+
|
- Data collection status parameters |
+ Data collection status parameters
+
Pixirad
- ColorsCollected |
+ ColorsCollected
+
- asynInt32 |
+ asynInt32
+
- r/o |
+ r/o
+
- The number of colors collected so far for the current image. |
+ The number of colors collected so far for the current image.
+
- COLORS_COLLECTED |
+ COLORS_COLLECTED
+
- $(P)$(R)ColorsCollected_RBV |
+ $(P)$(R)ColorsCollected_RBV
+
- longin |
+ longin
+
Pixirad
- UDPBuffersRead |
+ UDPBuffersRead
+
- asynInt32 |
+ asynInt32
+
- r/o |
+ r/o
+
The number of UDP buffers (images) read by the UDP listener thread for the current
- acquisition. |
+ acquisition.
+
- UDP_BUFFERS_READ |
+ UDP_BUFFERS_READ
+
- $(P)$(R)UDPBuffersRead_RBV |
+ $(P)$(R)UDPBuffersRead_RBV
+
- longin |
+ longin
+
Pixirad
- UDPBuffersMax |
+ UDPBuffersMax
+
- asynInt32 |
+ asynInt32
+
- r/o |
+ r/o
+
The maximum number of UDP buffers (images) for UDP listener thread. This is set
- at startup. |
+ at startup.
+
- UDP_BUFFERS_MAX |
+ UDP_BUFFERS_MAX
+
- $(P)$(R)UDPBuffersMax_RBV |
+ $(P)$(R)UDPBuffersMax_RBV
+
- longin |
+ longin
+
Pixirad
- UDPBuffersFree |
+ UDPBuffersFree
+
- asynInt32 |
+ asynInt32
+
- r/o |
+ r/o
+
- The number of free UDP buffers (images). |
+ The number of free UDP buffers (images).
+
- UDP_BUFFERS_FREE |
+ UDP_BUFFERS_FREE
+
- $(P)$(R)UDPBuffersFree_RBV |
+ $(P)$(R)UDPBuffersFree_RBV
+
- longin |
+ longin
+
Pixirad
- UDPSpeed |
+ UDPSpeed
+
- asynFloat64 |
+ asynFloat64
+
- r/o |
+ r/o
+
- The speed with which the last UDP buffer was received (MB/s). |
+ The speed with which the last UDP buffer was received (MB/s).
+
- UDP_SPEED |
+ UDP_SPEED
+
- $(P)$(R)UDPSpeed_RBV |
+ $(P)$(R)UDPSpeed_RBV
+
- ai |
+ ai
+
|
- Calibration and reset parameters |
+ Calibration and reset parameters
+
Pixirad
- AutoCalibrate |
+ AutoCalibrate
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
Sends a command to the detector to perform an autocalibration. The detector makes
adjustments to achieve uniform pixel response. This operation must be performed
at least once after the detector is power-cycled, and whenever necessary as the
chip temperature and/or supply voltages may drift with time and environmental conditions.
If autocalibration has not been performed then there will be many "hot" (non-zero)
- pixels in the image with no x-rays. When an autocalibration is performed the detector
- sends 2 images, one collected before the calibration and one after the calibration.
- These images always have a range of 0-31 counts and show the correction applied
- to each pixel. |
+ pixels in the image with no x-rays.
+
- AUTO_CALIBRATE |
+ AUTO_CALIBRATE
+
$(P)$(R)AutoCalibrate
- $(P)$(R)AutoCalibrate_RBV |
+ $(P)$(R)AutoCalibrate_RBV
+
bo
- bi |
+ bi
+
Pixirad
- SystemReset |
+ SystemReset
+
- asynInt32 |
+ asynInt32
+
- r/w |
+ r/w
+
Writing 1 to this record sends a command to reset detector to its initial state.
This causes the sockets to disconnect, and it takes about 30 seconds for the system
to recover. Once it recovers the driver then sends commands to set all of the programmable
parameters (thresholds, cooling, high voltage, etc.) to the current values in the
EPICS output records. When the system is available again SystemReset record will
- go back to 0. |
+ go back to 0.
+
- SYSTEM_RESET |
+ SYSTEM_RESET
+
$(P)$(R)SystemReset
- $(P)$(R)SystemReset_RBV |
+ $(P)$(R)SystemReset_RBV
+
bo
- bi |
+ bi
+
@@ -809,179 +1137,245 @@