ORTEC 473 - Fig. 6.1. a System for Gamma-Gamma Lifetime Measurement; Fig. 6.2. Timing over a Narrow Dynamic Range with the System of Fig. 6.1

10
ORTEC
456
HV POWER
SUPPLY
ORTEC
460
SPECTROS-
COPY
AMri'FIER
-2200V
Dynode
Anode
ORTEC
265
RCA
8850
PM
PM BASE
V/,
ORTEC
473
CONST
FRACTION
DISCRIMI
NATOR
ORTEC
420A
SCA
Na Source
*
Va
RCA
ORTEC
265
8850
PM
PM BASE
Dynode
Anode
1- X 1-in. NATON-136
Start
ORTEC
457
TIME TO
PULSE HEIGHT
CONVERTER
Stop
ORTEC
414A
COINCIDENCE
ORTEC
425
NANOSECOND
DELAY
ORTEC
420A
SCA
ORTEC
460
SPECTROS-
COPY
AMPLIFIER
ORTEC
456
HV POWER
SUPPLY
-2200V
ORTEC
473
CONST
fraction
DISCRIMI
NATOR
ORTEC
113
SCINTILLA
TION
PREAMP
ORTEC
6220
MULTICHANNEL
ANALYZER
Fig. 6.1. A System for Gamma-Gamma Lifetime Measurement.
DDQ305BI
60Co
RCA 8850 Photomultiplier Tube
1.1:1 Dynamic Range
FWHM 193 ps
FWTM 373 ps
6,85 ps per channel
Fig. 6.2. Timing Over a Narrow Dynamic Range with the System of Fig. 6.1.