Development of a dose algorithm for the modified panasonic UD-802 personal dosimeter used at three mile island
During the fall of 1981, the personnel dosimetry group at GPU Nuclear Corporation at Three Mile Island (TMI) requested assistance from The University of Michigan (UM) in developing a dose algorithm for use at TMI-2. The dose algorithm had to satisfy the specific needs of TMI-2, particularly the need to distinguish beta-particle emitters of different energies, as well as having the capability of satisfying the requirements of the American National Standards Institute (ANSI) N13.11-1983 standard. A standard Panasonic UD-802 dosimeter was modified by having the plastic filter over element 2 removed. The dosimeter and hanger consists of the elements with a 14 mg/cm/sup 2/ density thickness and the filtrations shown. The hanger on this dosimeter had a double open window to facilitate monitoring for low-energy beta particles. The dose algorithm was written to satisfy the requirements of the ANSI N13.11-1983 standard, to include /sup 204/Tl with mixtures of /sup 204/Tl with /sup 90/Sr//sup 90/Y and /sup 137/Cs, and to include 81- and 200-keV average energy X-ray spectra. Stress tests were conducted to observe the algorithm performance to low doses, temperature, humidity, and the residual response following high-dose irradiations. The ability of the algorithm to determine dose from the beta particles of /sup 147/Pm was also investigated.
- Research Organization:
- Univ. of Michigan, Ann Arbor (USA)
- OSTI ID:
- 5897455
- Report Number(s):
- CONF-881011-
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Vol. 57; Conference: Joint meeting of the European Nuclear Society and the American Nuclear Society, Washington, DC, USA, 30 Oct - 4 Nov 1988
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two methods for examining angular response of personnel dosimeters
Performance comparisons of selected personnel-dosimetry systems in use at Department of Energy facilities
Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
PERSONNEL DOSIMETRY
RADIATION DOSES
ALGORITHMS
THERMOLUMINESCENT DOSEMETERS
RESPONSE FUNCTIONS
THREE MILE ISLAND-2 REACTOR
REACTOR ACCIDENTS
BETA PARTICLES
CESIUM 137
HUMIDITY
PERFORMANCE
PERSONNEL MONITORING
STRONTIUM 90
TEMPERATURE DEPENDENCE
THALLIUM 204
YTTRIUM 90
ACCIDENTS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
CHARGED PARTICLES
DAYS LIVING RADIOISOTOPES
DOSEMETERS
DOSES
DOSIMETRY
ENRICHED URANIUM REACTORS
EVEN-EVEN NUCLEI
FUNCTIONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUMINESCENT DOSEMETERS
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
MONITORING
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
POWER REACTORS
PWR TYPE REACTORS
RADIATION MONITORING
RADIOISOTOPES
REACTORS
STRONTIUM ISOTOPES
THALLIUM ISOTOPES
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVING RADIOISOTOPES
YTTRIUM ISOTOPES
220900* - Nuclear Reactor Technology- Reactor Safety
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled