Factors affecting the trapping performance of xenon holdup-filters in nuclear medicine applications
(1982) In Medical Physics 9(1). p.96-105- Abstract
Activated charcoal traps are used in nuclear medicine departments to capture exhaled radioactive xenon gas. In the present study, the trapping performance of charcoal was investigated for different physical qualities in experimental and clinical situations. Various factors affecting the trapping capacity are identified, such as the charcoal mass, moisture and carbon�dioxide concentrations in the sweep gas, gas�flow rate through the trap, and temperature. Improper drying of the exhaled air prior to passage through the charcoal bed appears to be a critical factor, leading to a much earlier breakthrough of xenon. Commercial xenon traps intended for ambient temperature operation were found to be useful only for a limited number of... (More)
Activated charcoal traps are used in nuclear medicine departments to capture exhaled radioactive xenon gas. In the present study, the trapping performance of charcoal was investigated for different physical qualities in experimental and clinical situations. Various factors affecting the trapping capacity are identified, such as the charcoal mass, moisture and carbon�dioxide concentrations in the sweep gas, gas�flow rate through the trap, and temperature. Improper drying of the exhaled air prior to passage through the charcoal bed appears to be a critical factor, leading to a much earlier breakthrough of xenon. Commercial xenon traps intended for ambient temperature operation were found to be useful only for a limited number of patients due to an early breakthrough point. By refrigerating the trap, however, a much larger capacity was achieved. If correctly managed, xenon traps constitute a useful alternative for isolating radioactive xenon wastes in clinical and experimental applications.
(Less)
- author
- Bolmsjö, M. S. and Persson, B. R.R. LU
- organization
- publishing date
- 1982-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ACTIVATED CARBON, ADSORPTION, CHARCOAL, FEASIBILITY STUDIES, FILTERS, PERFORMANCE, RADIOACTIVE WASTE DISPOSAL, REFRIGERATION, SORPTIVE PROPERTIES, TRAPS, XENON 133
- in
- Medical Physics
- volume
- 9
- issue
- 1
- pages
- 96 - 105
- publisher
- American Association of Physicists in Medicine
- external identifiers
-
- pmid:7078534
- scopus:0020074730
- ISSN
- 0094-2405
- DOI
- 10.1118/1.595139
- language
- English
- LU publication?
- yes
- id
- f7e383d9-3a6c-4137-945e-c2a61b4d2c4a
- date added to LUP
- 2020-08-15 17:15:55
- date last changed
- 2024-01-02 17:00:52
@article{f7e383d9-3a6c-4137-945e-c2a61b4d2c4a, abstract = {{<p>Activated charcoal traps are used in nuclear medicine departments to capture exhaled radioactive xenon gas. In the present study, the trapping performance of charcoal was investigated for different physical qualities in experimental and clinical situations. Various factors affecting the trapping capacity are identified, such as the charcoal mass, moisture and carbonâ€�dioxide concentrations in the sweep gas, gasâ€�flow rate through the trap, and temperature. Improper drying of the exhaled air prior to passage through the charcoal bed appears to be a critical factor, leading to a much earlier breakthrough of xenon. Commercial xenon traps intended for ambient temperature operation were found to be useful only for a limited number of patients due to an early breakthrough point. By refrigerating the trap, however, a much larger capacity was achieved. If correctly managed, xenon traps constitute a useful alternative for isolating radioactive xenon wastes in clinical and experimental applications.</p>}}, author = {{Bolmsjö, M. S. and Persson, B. R.R.}}, issn = {{0094-2405}}, keywords = {{ACTIVATED CARBON; ADSORPTION; CHARCOAL; FEASIBILITY STUDIES; FILTERS; PERFORMANCE; RADIOACTIVE WASTE DISPOSAL; REFRIGERATION; SORPTIVE PROPERTIES; TRAPS; XENON 133}}, language = {{eng}}, month = {{01}}, number = {{1}}, pages = {{96--105}}, publisher = {{American Association of Physicists in Medicine}}, series = {{Medical Physics}}, title = {{Factors affecting the trapping performance of xenon holdup-filters in nuclear medicine applications}}, url = {{http://dx.doi.org/10.1118/1.595139}}, doi = {{10.1118/1.595139}}, volume = {{9}}, year = {{1982}}, }