CDF Radiation Calculators

General Information:

Calculators are available for providing estimates of the radiation dose to the CDF detector. The results of these calculators are based on measurements made by the CDF radiation monitoring group and a simple model of the radiation field. The model is a power law in 1/r where r is the distance from the beam in a cylindrical coordinate system.

The calculators are a series macros based on the CERN software product PAW. PAW must be installed on your system for the calculators to work. To obtain a calculator, download the appropriate .tgz file from the list below. Then issue the following commands: 

    > tar -zxvf filename.tgz
    > cd filename
    > PAW
    PAW> exec filename [delivered_lumi] [proton_losses]
The parameters in brackets are optional. The above command will produce a plot of a region of the CDF detector/collision hall and a temperature scale in the form of colors. Red means high doses. Blue means low doses. if you wish to obtain the dose at a specific location, issue the following command once a plot is on the screen. 
    PAW> locate
Move the cursor over the plot. The cursor will change to a cross hair on the plot. Place the cross hairs over the region you wish to obtain the dose and click the left mouse button. A window will pop up in the top left corner of the figure. If the window is blank, click again. Inside the window a series of numbers will appear. The X,Y numbers refer to that coordinate. The Z number is the radiation dose at that location measured in gray (Gy, 1 Gy = 100 rad).

Calculators:

Questions, comments: tesarek@fnal.gov
Last modified: Wed May 18 12:23:16 CDT 2005