SNO-NCD Experiment

 

Shops rate of each string for mux and shaper events. Color key can be adjusted by dragging scale and converted from linear to log. Click the mux box or scope to pull up the dialog window for that object.



The main NCD control dialog contains information specific to the SNO-NCD Experiment.

 

Reference dialog of the electronics

Information for the NCD highlighted in the map to the left

Displays the configuration of the NCD components. If thresholds or settings are changed these checks fail. To capture the current state click the button or have a summary printed to the Status Log

Sets the trigger card to run without the MTC and SHaRC.

Displays a strip chart of the shaper and mux rates over time. Adjust both scales by dragging with the mouse.

Columns display: String#, String Name, AV position, Shaper Address, Card and Channel, Mux Box, Channel and Address (Box), Scope Channel that string is displayed on, HV Supply, Pre-amp for that string, PDS Board and Channel that will send a pulse to the string, Number of Tubes that make up that NCD and names of those tubes.  Note: to sort by column click on the column name. Information can be edited in place.

Sets which file will be used as the map. Adds or deletes entire entries. Saves as file. Subject to security lock.

Lists of Mux threshold files that will be loaded for specific source types

Details of the selected file in the list

Add/Remove entries in the list

When checked the file list is totally ignored

Loading Special Mux Thresholds

By using the 'Special Run Conditions' dialog, you can specify special sets of mux thresholds for each type of source run. Just select the type of source and a file. The ascii file format is:

        0x10       80        85        77

        91        88        78        82

        91        76        71        67

        89        73        67        86

        99        79        76        89

       100        59        97        53

       100        65        82        79

        99        66        84        78

        95        68        81        68

        90        68        80        60

        99        59        74        69

       104        75        52        67

        16         2        45        49


There should be 13 columns of threshold values (one for each channel) and four rows (one for each mux). You can use either hex or decimal format. The columns can be delimited by any white space.


NCD Tasks

The NCD object manages four tasks.

  1. •PDS step thru

  2. •Gain and Linearity Calibration

  3. •Log Amp Calibration

  4. •Threshold Calibration

  5. •Cable Check


These tasks are described here.


Record Format

Pulser Record that is shipped when the calibration tasks adjust the pulser settings:

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Header Word

^^^^ ^^^^ ^^^^ ^^----------------------- NcdModel PulserSetting Record ID (from header)

-----------------^^-^^^^ ^^^^ ^^^^ ^^^^- Length (fixed at 24 bytes)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Global Trigger ID

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Pulser waveform (int)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Pulser amplitude (float)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Pulser burst rate (float)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Pulser width (float)


The NcdModel can also ship task start/stop records:

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Header Word

^^^^ ^^^^ ^^^^ ^^----------------------- NcdModel TaskName Record ID (from header)

-----------------^^-^^^^ ^^^^ ^^^^ ^^^^- Length (fixed at 24 bytes)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Global Trigger ID

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

--------------------------------------^- 1==Started, 0==Stopped


The NcdModel can also ship task start/stop records:

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Header Word

^^^^ ^^^^ ^^^^ ^^^^--------------------- NcdModel TaskName Record ID (from header)

--------------------^^^^ ^^^^ ^^^^ ^^^^- Length (fixed at 24 bytes)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Global Trigger ID

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

--------------------------------------^- 1==Started, 0==Stopped

Force settings back to nominal values

Capture the current settings as Nominal and store into a file.

Set all mux values to a percentage of their current value