1. Procedure to add Ra-223 to the isotope library and create a dial value
setting in the Atomlab 500
Ra-223 is not listed in the current isotope library. The user will have to add it to the isotope list.
1.
Press the HOME key
2.
Press SELECT UTILITIES
3.
Select DOSE CALIBRATOR CONFIGURATION
4.
Select ISOTOPE LIST – you must now enter the password
5.
The ISOTOPE LIST screen is now displayed
6.
Select ADD ISOTOPE – the ADD ISOTOPE screen will now be displayed
7.
Select the ISOTOPE SYMBOL and enter Ra-223
8.
Select ENTER
9.
Select ISOTOPE NAME, type in Radium 223
10. Select ENTER
11. Select DIAL SETTING and enter 17.8 as the factory default or
enter the other dial setting you determined
12. Select ENTER
13. Select HALF LIFE
14. Enter 11.43
15. Select ENTER
16. Select HALF LIFE UNITS and toggle it until DAYS appear
17. Select ENTER
18. Select YES to save the new isotope
NOTE:
You have now added Ra-223 to your isotope list.
2. Procedure to set a dial value for Ra-223 for the Atomlab 500
1.
If the user has a Ra-223 NIST traceable standard sent from the manufacturer, they can
place the standard into the dose calibrator chamber and verify the factory determined
isotope setting or create their own custom dial value.
2.
The dose calibrator should be on the dose calibrator measurement screen. With the Ra-223
standard in the chamber an activity is shown. Select Ra-223 from the isotope library.
Press the isotope name next to the activity reading and the dial value adjustment screen
pops up. The factory preset dial value for Ra-223 is 17.8.
3.
Calculate the current decayed activity of the Ra-223 standard. If you want to adjust the dial
setting to have the dose calibrator read exactly the activity you have calculated. Use the
⇑⇓
arrows to modify your dial setting. Write down this dial value.
NOTE:
What you have done does not change the system’s dial setting. You must go to the
Utilities Functions and adjust the Ra-223 isotope in the system memory with the dial value
you want to use. See Section III.
4.
If you press BACK in the dial value adjustment box, the system returns to the current
operation or you can just press the large isotope name next to the activity and it will return
to standard operation.