SIGMA AM-255 - Manual (Page 3)

APPENDIX .................................................................................................................................. 19
A. WARRANTY .......................................................................................................................... 19
B. GLOSSARY ............................................................................................................................ 20
C. FORMULAS ........................................................................................................................... 22
C.1. ACTIVITY FROM COUNTS .................................................................................. 22
C.2. EFFICIENCY ........................................................................................................... 22
C.3. N*SIGMA ALARM LEVEL ................................................................................... 22
C.4. RELIABLE DETECTABLE ACTIVITY (RDA) FORMULA................................ 23
C.5. SIGNAL TO BACKGROUND RATIO................................................................... 23
C.6. VARIANCE.............................................................................................................. 24
D. CONFIGURATION TRACKING SHEET.......................................................................... 25
E. PARTS ..................................................................................................................................... 26
E.1. RECOMMENDED SPARE PARTS ........................................................................ 26
E.2. SPARE PARTS ORDERING INFORMATION...................................................... 26
F. DRAWINGS ............................................................................................................................ 27