Guide to the MiniBooNE Beamline

What This Document is Not

This document does not tell you what you should be monitoring while on shift. For that information, refer to the Beamline Monitoring Proceedure.

What This Document Is

This is a two-part document. The first part is a quick reference for using a Console. It will tell you how to open the windows you need to watch the beamline and Booster. Each application also has it's own link with further explanation. The second part is a more in-depth explanation of how we run, what limits our running, etc. Many thanks to Eric Prebys who wrote the original version of this document (and much of that document has been lifted, verbatim!)

Contents

  1. Using ACNET to Look at MiniBooNE
    1. Introduction to the Controls System
    2. Console Overview
    3. ACNET Devices/Parameter Pages (E25)
    4. ACL (Accelerator Control Language)
    5. Fast Time Plot
    6. Snapshot Plot
    7. Starting an Application
      1. Clockscope (D33)
      2. The Lumberjack Datalog Plotter (D44)
      3. Beam Switch Box (D47)
      4. Average Beam Loss in the Tunnel (B88)
      5. Multiwire Chamber Display/Beam Profile (E26)
      6. MiniBooNE Beam Permit (E29)
      7. Camac 204 Interface (E33)
    8. Individual Devices
      1. Horn Power
        1. E:MBHREF
        2. E:ISTPST
      2. Horn RAW System
      3. MiniBooNE Vacuum
  2. The MiniBooNE Beamline
    1. Overview
    2. Schematic

Introduction to the Controls System

The 10th floor console is an interface to the ACNET system, on which all accelerator controls currently run. This is a GUI which dates back to the mid-80's and so predates many windowing standardizations which have come since. Thus, the look and feel can be a bit unfamiliar. Nevertheless, it is a very powerful system, and with a little practice can become quite natural to use.

At the moment, the console in the MiniBooNE control room does not have the privilege to change anything important, so don't worry about messinganything up.

Console Overview

The interface with the ACNET controls system is the "console" application, which runs on one of the VAXes in the controls network. The console PC in the MiniBooNE control system will automatically start the console application when it is booted up (it can take around 10 minites). After that, the console application should automatically restart itself if it dies for any reason.

The console has a limited number of windows, all of which are created when it starts. They are all represented as icons in the icon manager window. The ones you should be most familiar with are shown below.

They are:

Once you open a primary application window, you start a particular primary application through its index reference, which is a combination of a single letter followed by a number.  The letter denotes the general class of the application.  For example "B" is for Booster, "T" is for Tevatron, etc.  The number is just the arbitrary location of the application within a particular index.  You can get all the applications of a particular class by entering the letter in the upper left corner and hitting return.  For example, below is the (E)xperiment index, which contains all the BooNE specific applications

You can now select a particular application (or "page") by clicking on the name.  Clicking on the E again will bring up further E listings, if there are any. You can also select a page directly by typing the whole reference in the upper left.  For example, I could go to E26 by first entering "E", then clicking "Multiwire", or I could just type "E26" in the upper left.  Note that if I do this while another application is running, it will exit the running application and start the new one.

In addition to the dedicated MiniBooNE pages (E25->E31), there are some Booster ("B") pages and diagnostic ("D") pages which will prove useful.

Snapshot Plot

To open a snapshot plot, click on the "Utility Window" icon. Click on SNP.
Another menu will appear. Click on Restore.
A scrollable menu will apear. Scroll down until you reach "MiniBooNE", and click on it.
Another scrollable menu will apear. Scroll down to the preset plot you want, and click on it. (In this example, item 5 (Ground Fault) is chosen. Refer to the shift instructions for which plot to watch.) This will load preset devices, events, and scaling into the Snapshot Plot. Click near a device to start the plot. The plot will pop up in a new window.

Fast Time Plot

To open a fast time plot, click on the "Utility Window" icon. Click on FTP.
Another menu will appear. Click on Restore.
A scrollable menu will apear. Scroll down until you reach "MiniBooNE", and click on it.
Another scrollable menu will apear. Scroll down to the preset plot you want, and click on it. (In this example, item 15 (MiniBooNE Rates) is chosen. Refer to the shift instructions for which plot to watch.) This will load preset devices, events, and scaling into the Fast Time Plot. Click near a device to start the plot. The plot will pop up in a new window.

To change a device, just type over it. Clicking will restart the plot.

Starting an Application

To start an application, locate it on the correct index page, then click on it. Easy! Of course, you need to figure out which index page the application is on and how to use the application! Go back to the table of contents to find a list of applications.

Individual Devices

There is also documentation on individual devices. It is primarily proceedures for MCR Operations explaining what to do if the device fails. Details of how the device works will be added as time permits. Go back to the table of contents to find a list of devices.


Last Modified:  11 November 2003
Comments:  kobilarc@fnal.gov