Automated krypton-85 gamma ray stack monitor
A Ge(Li) ..gamma..-ray detector, housed in a lead cave, was used in conjunction with a six-liter pressurized (60 psia) well spectroscopy cell to selectively detect /sup 85/Kr stack emissions. This system was calibrated so as to relate the 514 keV ..gamma..-ray counting rate to /sup 85/Kr concentration. Counting rate, or concentration, was continuously recorded using a count rate meter/strip chart recorder combination and was also time averaged over 15 minute intervals using a programmable multi-channel analyzer system with cassette readout. Being completely automated, this ..gamma..-analysis system required little more than liquid nitrogen service and data record retrieval throughout a four-month long sampling period. The sensitivity of this ..gamma..-ray analytical system was such as to achieve a minimum detectable /sup 85/Kr stack concentration of 2 ..mu..Ci/m/sup 3/ for 15 minute counting intervals.
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6642390
- Report Number(s):
- PNL-SA-8642; CONF-801103-52; TRN: 81-004880
- Resource Relation:
- Conference: IEEE nuclear science symposium, Orlando, FL, USA, 5 Nov 1980
- Country of Publication:
- United States
- Language:
- English
Similar Records
Proportional counter for monitoring low levels of /sup 85/Kr and other beta- and x-ray-emitting nuclides
Proportional counter for monitoring low levels of $sup 85$Kr and other beta- and x-ray-emitting nuclides
Related Subjects
GAMMA DETECTION
LI-DRIFTED GE DETECTORS
PERFORMANCE
GAMMA RADIATION
KRYPTON 85
MULTI-CHANNEL ANALYZERS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DETECTION
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-ODD NUCLEI
GE SEMICONDUCTOR DETECTORS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON ISOTOPES
LI-DRIFTED DETECTORS
MEASURING INSTRUMENTS
NUCLEI
PULSE ANALYZERS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
RADIOISOTOPES
SEMICONDUCTOR DETECTORS
YEARS LIVING RADIOISOTOPES
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments