Fluke Biomedical 37-705 - Manual (Page 14)

Nuclear Associates 37-705
Operators Manual
2-4
4. Press the OPTION soft-key (column 4) to select the Energy item. Press the soft-key below column
5 to scroll the cursor to the right and use the UP and DOWN keys to the right of the display to enter
the appropriate energy.
5. Press the OPTION soft-key (column 4) to select the Machine item. Press the soft-key below column
5 to scroll the cursor to the right and use the UP and DOWN keys to the right of the display to enter
the appropriate machine label. A blank space can be entered by scrolling down from "A".
6. Press the OPTION soft-key (column 4) to select the Comment item. Press the soft-key below
column 5 to scroll the cursor to the right and use the UP and DOWN keys to the right of the display
to enter the appropriate comment. A blank space can be entered by scrolling down from "A".
7. Repeat this process for each channel that has a diode connected by pressing the column 2 soft-key
to access the related database items.
8. After completing the entry of all the database information press the ENTER key. Press the YES key
(column 4) to save the database information.
2.2.5 Performing the Calibration
1. The next step is to perform the calibration. Verify that the diodes are clustered near isocenter on the
treatment table. Scroll to the EXPOSE menu item by pressing the soft-key below the second
column. Select the GROUP of diodes you wish to expose by pressing the GROUP soft-key. Press
ENTER.
2. The display indicates the channel status for each of the 5 input channels. All channels that will be
calibrated at this time must indicate YES in the EXPOSE column. Press the column 2 soft-key to
select the channel and the column 3 soft-key to set the appropriate channels to YES. Upon
completion press the ENTER key.
3. The VeriDose V is ready for a calibration exposure. Make a minimum exposure of 100 cGy. After
the exposure, press the DONE soft-key (column 5).
4. The results of the measurement are displayed. Enter the actual exposure in cGy by pressing the
UP or DOWN keys to increment the value at the cursor position. Press the ENTER key to move the
cursor to the next digit. After entering the actual exposure the sensitivity for each channel is
calculated and displayed as nC/cGy. Press the YES soft-key (column 4) to save the calibration
factors in the group database.
5. The new group is now calibrated and the system may be used for additional measurements.
This process may be repeated for each diode group that will be used with the VeriDose V.
6. To make a routine measurement, scroll to the MEASURE menu item by pressing the mode soft-
key. Select the dose option by pressing the OPTION soft-key and scrolling to the DOSE menu item.
Press the ENTER key.
2.3 Measure Modes
Dose
Dose Screen #1
MEASURE DOSE group name
SELECT RATE 1 ON
SETUP ALARMS 2 ON
CAL REPORT 3 OFF
4 OFF
5 OFF
MODE OPTION CHANNEL Status