Jing Chen

Summary

Affiliation: Health Canada
Country: Canada

Publications

  1. ncbi request reprint Estimated fluence-to-absorbed dose conversion coefficients for use in radiological protection of embryo and foetus against external exposure to photons from 50 keV to 10 GeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 121:358-63. 2006
  2. doi request reprint A look at the grouping effect on population-level risk assessment of radon-induced lung cancer
    Jing Chen
    Radiation Protection Bureau, Health Canada
    Glob J Health Sci 5:1-11. 2013
  3. pmc Canadian lung cancer relative risk from radon exposure for short periods in childhood compared to a lifetime
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, ON K1A 0K9, Canada
    Int J Environ Res Public Health 10:1916-26. 2013
  4. doi request reprint An ecological study of cancer incidence in Port Hope, Ontario from 1992 to 2007
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, K1A 0K9, Canada
    J Radiol Prot 33:227-42. 2013
  5. pmc Canadian population risk of radon induced lung cancer: a re-assessment based on the recent cross-Canada radon survey
    J Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, Canada K1A 0K9
    Radiat Prot Dosimetry 152:9-13. 2012
  6. doi request reprint The development of fetal dosimetry and its application to A-bomb survivors exposed in utero
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa K1A 0K9, Canada
    Radiat Prot Dosimetry 149:60-6. 2012
  7. doi request reprint A comparison of organ doses between mathematical and voxel phantoms with the DS02 photon fluences
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa K1A 0K9, Canada
    Radiat Prot Dosimetry 149:49-55. 2012
  8. doi request reprint An update on thoron exposure in Canada with simultaneous ²²²Rn and ²²⁰Rn measurements in Fredericton and Halifax
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
    Radiat Prot Dosimetry 147:541-7. 2011
  9. doi request reprint Soil radon measurements in the Canadian cities
    J Chen
    Radiation Protection Bureau, Health Canada, Ottawa, ON, Canada
    Radiat Prot Dosimetry 151:172-4. 2012
  10. doi request reprint Assessment of test duration effect in indoor radon measurement by Monte Carlo simulations
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada K1A 0K9
    Radiat Prot Dosimetry 150:248-58. 2012

Detail Information

Publications62

  1. ncbi request reprint Estimated fluence-to-absorbed dose conversion coefficients for use in radiological protection of embryo and foetus against external exposure to photons from 50 keV to 10 GeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 121:358-63. 2006
    ..Photon fluence-to-absorbed-dose conversion coefficients were estimated for the four prenatal ages...
  2. doi request reprint A look at the grouping effect on population-level risk assessment of radon-induced lung cancer
    Jing Chen
    Radiation Protection Bureau, Health Canada
    Glob J Health Sci 5:1-11. 2013
    ....
  3. pmc Canadian lung cancer relative risk from radon exposure for short periods in childhood compared to a lifetime
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, ON K1A 0K9, Canada
    Int J Environ Res Public Health 10:1916-26. 2013
    ..The results demonstrate clearly that the higher the radon concentration; the sooner remedial measures should be undertaken; as recommended by Health Canada in the Canadian radon guideline...
  4. doi request reprint An ecological study of cancer incidence in Port Hope, Ontario from 1992 to 2007
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, K1A 0K9, Canada
    J Radiol Prot 33:227-42. 2013
    ..The study nevertheless indicated that large differences in cancer incidence are not occurring in Port Hope compared to other similar communities and the general population...
  5. pmc Canadian population risk of radon induced lung cancer: a re-assessment based on the recent cross-Canada radon survey
    J Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, Canada K1A 0K9
    Radiat Prot Dosimetry 152:9-13. 2012
    ..In particular, there is a need for a focus on education and awareness by all levels of government, and in partnership with key stakeholders, to encourage Canadians to take action to reduce the risk from indoor radon exposure...
  6. doi request reprint The development of fetal dosimetry and its application to A-bomb survivors exposed in utero
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa K1A 0K9, Canada
    Radiat Prot Dosimetry 149:60-6. 2012
    ..In most cases, brain absorbed doses differ significantly from the doses to the entire fetal body. In order to accurately assess radiation effects to the fetal brain, it is necessary to determine brain doses separately...
  7. doi request reprint A comparison of organ doses between mathematical and voxel phantoms with the DS02 photon fluences
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa K1A 0K9, Canada
    Radiat Prot Dosimetry 149:49-55. 2012
    ....
  8. doi request reprint An update on thoron exposure in Canada with simultaneous ²²²Rn and ²²⁰Rn measurements in Fredericton and Halifax
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
    Radiat Prot Dosimetry 147:541-7. 2011
    ..On the basis of these results, together with previous measurements in Ottawa, Winnipeg and the Mont-Laurier region of Quebec, it is estimated that thoron contributes ∼8 % of the radiation dose due to indoor radon exposure in Canada...
  9. doi request reprint Soil radon measurements in the Canadian cities
    J Chen
    Radiation Protection Bureau, Health Canada, Ottawa, ON, Canada
    Radiat Prot Dosimetry 151:172-4. 2012
    ..The results provide additional data for the validation of an association between indoor and soil radon potentials and for the development of radon potential map of Canada...
  10. doi request reprint Assessment of test duration effect in indoor radon measurement by Monte Carlo simulations
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada K1A 0K9
    Radiat Prot Dosimetry 150:248-58. 2012
    ....
  11. doi request reprint Determination of thoron equilibrium factor from simultaneous long-term thoron and its progeny measurements
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, Canada, K1A 0K9
    Radiat Prot Dosimetry 149:155-8. 2012
    ..022 with a GSD of 3.02. The results indicate that the F value of 0.02 for thoron recommended by UNSCEAR is a reasonable value for those Canadian homes tested...
  12. doi request reprint Estimated yield of double-strand breaks from internal exposure to tritium
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa, ON K1A 0K9, Canada
    Radiat Environ Biophys 51:295-302. 2012
    ....
  13. doi request reprint The design of Radiation Accident Registry
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, ON, Canada K1A 1C1
    Radiat Prot Dosimetry 144:551-4. 2011
    ..The development of fast and accurate dose assessment tools will remain a long-term challenge associated with the RAR. To meet this challenge, further research activities in radiation dosimetry for individual monitoring are needed...
  14. doi request reprint Considerations and preliminary design of patient exposure registry
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Ont, Canada
    Radiat Prot Dosimetry 142:255-64. 2010
    ..Implementation strategy is discussed. The strategy will allow many initiatives progressing in parallel such as backward data mining and forward development in order to make this important registry a reality in the near future...
  15. doi request reprint Characteristics of thoron and thoron progeny in Canadian homes
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, ON, Canada
    Radiat Environ Biophys 50:85-9. 2011
    ..With a 3 months simultaneous measurement of thoron and thoron progeny concentrations, the equilibrium factor was determined to be 0.024 with a geometric standard deviation of 2.7...
  16. doi request reprint Preliminary assessment of thoron exposure in Canada
    J Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 141:322-7. 2010
    ..In order to better assess thoron exposure in Canada and thoron risk to the Canadian population in various geographic locations, more thoron progeny measurements are required...
  17. doi request reprint Doses to children from intakes by ingestion
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 142:46-50. 2010
    ....
  18. doi request reprint An estimation of the annual effective dose to the Canadian population from medical CT examinations
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, K1A 1C1, Canada
    J Radiol Prot 30:131-7. 2010
    ..This significant increase in population radiation dose from CT scans is due mainly to a more than doubling in the examination rate and to a higher radiation dose per procedure from the newer generation of multi-detector CTs...
  19. doi request reprint Microdosimetric characteristics of proton beams from 50 keV to 200 MeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada K1A 1C1
    Radiat Prot Dosimetry 143:436-9. 2011
    ..Dose mean lineal energies were derived to characterise proton beams with changing kinetic energy and changing radiation qualities at various depths and within spread-out Bragg peaks of clinic interests...
  20. doi request reprint Radon exhalation from building materials for decorative use
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    J Environ Radioact 101:317-22. 2010
    ..3 per hour. Generally speaking, building materials used in home decoration make no significant contribution to indoor radon for a house with adequate air exchange...
  21. doi request reprint Estimation of uranium GI absorption fractions for children and adults
    J Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Ontario, Canada K1A 1C1
    Radiat Prot Dosimetry 144:379-83. 2011
    ..030 ± 0.022 for children (7-18 y) and 0.021 ± 0.015 for adults (18-25 y). For anyone more than 18 y of age, the estimated f(1) value for uranium agree well with the ICRP recommended value of 0.02...
  22. doi request reprint An updated assessment of radon exposure in Canada
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada K1A 1C1
    Radiat Prot Dosimetry 140:166-70. 2010
    ..Because more radon data are included in the current assessment, and the data set covers broader geographical areas, the current assessment better represents the radon exposure in Canada...
  23. doi request reprint Assessment of radon equilibrium factor from distribution parameters of simultaneous radon and radon progeny measurements
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, ON, Canada
    Radiat Environ Biophys 50:597-601. 2011
    ....
  24. doi request reprint Achievements and current activities of the Canadian radon program
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada K1A 1C1
    Radiat Prot Dosimetry 146:14-8. 2011
    ..Major achievements accomplished in the past 3 y and current activities underway are highlighted here...
  25. ncbi request reprint Neutron fluence-to-dose conversion coefficients for embryo and fetus
    Jing Chen
    Radiation Protection Bureau, Health Canada 6302D1, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 110:693-8. 2004
    ..The results indicate that for neutrons <10 MeV more protection should be given to pregnant women in the first trimester due to the higher absorbed dose per unit neutron fluence to the fetus...
  26. ncbi request reprint Radiation quality of photons in small and large receptors--a microdosimetric analysis
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 118:238-42. 2006
    ..The values of y(D) suggest that, for both small and large receptors, conventional X rays should be about twice as effective as gamma rays from 60Co...
  27. ncbi request reprint Estimated risks of radon-induced lung cancer for different exposure profiles based on the new EPA model
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Health Phys 88:323-33. 2005
    ..The detailed tables provide a clearer view of the age groups at higher risk and the effect of exposure duration. The results will help radiation protection practitioners to better communicate indoor radon risk to members of the public...
  28. ncbi request reprint Extended conversion coefficients for use in radiation protection of the embryo and fetus against external neutrons from 10 MeV to 100 GeV
    Jing Chen
    Radiation Protection Bureau, Health Canada 6302Dl, 775 Brookfield Road, Ottawa KIA lCl, Canada
    Health Phys 90:223-31. 2006
    ..In cases where the irradiation geometry is not specified or not adequately known, conversion coefficients of AP-irradiation can therefore be used in a conservative dose assessment of fetus exposure to external neutrons...
  29. ncbi request reprint Assessment and management of residential radon health risks: a report from the health Canada radon workshop
    Bliss L Tracy
    Radiation Protection Bureau, Health Canada, Ottawa, Ontario
    J Toxicol Environ Health A 69:735-58. 2006
    ..The various elements of a comprehensive national radon policy were set forth...
  30. ncbi request reprint Fluence-to-absorbed dose conversion coefficients for use in radiological protection of embryo and foetus against external exposure to protons from 100 MeV to 100 GeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada K1A 1C1
    Radiat Prot Dosimetry 118:378-83. 2006
    ..Proton fluence-to-absorbed dose conversion coefficients were derived for the four prenatal ages...
  31. doi request reprint Estimate of doses to the fetus during commercial flights
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Ontario, Canada
    Health Phys 95:407-12. 2008
    ..The results indicate that the dose to the fetus can exceed a recommended fetal dose limit of 1 mSv after 10 round trips on commercial flights between Toronto and Frankfurt...
  32. doi request reprint Radon diffusion coefficients of vapour barrier membranes used in Canadian building construction
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
    Radiat Environ Biophys 48:153-8. 2009
    ..This study provides test results of radon diffusion coefficients for 10 vapour barrier membranes commonly used in Canadian building construction...
  33. doi request reprint An investigation on radon and thoron response of alpha-track detectors used in the Winnipeg case-control study
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
    Radiat Prot Dosimetry 138:83-6. 2010
    ..e. the detector sensitivity to radon is about 50 times higher than the sensitivity to thoron. It can be concluded that there was no significant influence of thoron on the radon measurements with these detectors...
  34. ncbi request reprint Mathematical models of the embryo and fetus for use in radiological protection
    Jing Chen
    Radiation Protection Bureau, Health Canada, 6302D1 Ottawa K1A 1C1, Canada
    Health Phys 86:285-95. 2004
    ..The new mathematical models presented here were developed for external dosimetry. They can also be used for internal dosimetry purposes, if other organs inside the female phantom are adjusted accordingly...
  35. ncbi request reprint Age dependence of natural uranium and thorium concentrations in bone
    Dominic Lariviere
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Address Locator 6302D1, Ottawa, ON, Canada, K1A
    Health Phys 92:119-26. 2007
    ....
  36. doi request reprint Long-term monitoring of soil gas radon and permeability at two reference sites
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 131:503-8. 2008
    ....
  37. doi request reprint 210Pb concentration in household dust: a potential indicator of long-term indoor radon exposure
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, ON, K1A 1C1, Canada
    Radiat Environ Biophys 48:427-32. 2009
    ..The results demonstrate that 210Pb concentrations in household dust relate reasonably well to radon concentrations in homes...
  38. doi request reprint Issues, considerations and recommendations on emergency preparedness for vulnerable population groups
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 134:132-5. 2009
    ..The workshop was organised to enable extensive round-table discussions and provide a summary of key issues, considerations and recommendations for emergency response planners...
  39. doi request reprint On the need for a radiation accident registry in Canada
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
    Radiat Prot Dosimetry 134:181-3. 2009
    ..Following the establishment of the registry, it should routinely be tested in training exercises to ensure its readiness for implementation whenever the need might arise...
  40. doi request reprint Significant impact on effective doses received during commercial flights calculated using the new ICRP radiation weighting factors
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Ontario, Canada
    Health Phys 98:74-6. 2010
    ..It also provides an update on adult effective doses given in a previous article in Health Physics when the old ICRP radiation weighting factors were used...
  41. doi request reprint Preliminary results of simultaneous radon and thoron tests in Ottawa
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada K1A 1C1
    Radiat Prot Dosimetry 130:253-6. 2008
    ..Radon concentrations ranged from 8 to 1525 Bq m(-3) while thoron concentrations varied from 5 to 924 Bq m(-3). The arithmetic mean of radon and thoron concentrations were found to be 110 +/- 168 and 56 +/- 123 Bq m(-3), respectively...
  42. doi request reprint 210Pb in home dust as a possible marker for radon exposure in indoor air
    Chunsheng Li
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, ON, Canada
    Health Phys 95:436-9. 2008
    ..This observation could lead to the development of 210Pb in home dust as a potential marker for indoor radon exposure...
  43. ncbi request reprint Proton and photon absorbed-dose conversion coefficients for embryo and foetus from top-down irradiation geometry
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 124:85-8. 2007
    ..They can, therefore, be used in various applications whenever exposure from the TOP-irradiation direction is concerned...
  44. ncbi request reprint Canadian individual risks of radon-induced lung cancer for different exposure profiles
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, ON
    Can J Public Health 96:360-3. 2005
    ..This study evaluates individual risks for the Canadian population exposed to radon in homes at different radon concentrations and for different periods of their lives...
  45. doi request reprint Determining the sample size required for a community radon survey
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Health Phys 94:362-5. 2008
    ..An analysis of radon measurement data obtained from the Winnipeg case-control study with randomly sampled subsets of different sizes has showed that a sample size of one to several hundred can serve the survey purpose well...
  46. ncbi request reprint Proximity functions for electrons from 100 eV to 10 MeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 122:56-60. 2006
    ..For mixed fields of electrons, the proximity functions can easily be derived from the proximity functions of monoenergetic electrons presented here...
  47. doi request reprint A preliminary radon map for Canada according to health region
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 130:92-4. 2008
    ..Here a preliminary radon map for Canada is presented, based on historical radon measurements collected in 6016 locations across Canada with the health region as the basic geographic units...
  48. ncbi request reprint Model results of kidney burdens from uranium intakes
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, 6302D1, Ottawa K1A 1C1, Canada
    Health Phys 86:3-11. 2004
    ....
  49. doi request reprint Simultaneous 222Rn and 220Rn measurements in Winnipeg, Canada
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa, Canada
    Radiat Prot Dosimetry 134:75-8. 2009
    ..Among the homes with detectable thoron concentrations, the values varied from 5 to 297 Bq m(-3), the geometric mean and standard deviation were 21 Bq m(-3) and 2.53, respectively...
  50. ncbi request reprint Estimate of annual average radon concentration in the normal living area from short-term tests
    Jing Chen
    Radiation Protection Bureau, 6302D1, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Health Phys 85:740-4. 2003
    ..The annual average radon level can be estimated by multiplying the result of a short-term screening test with the appropriate estimate factor given in this study...
  51. ncbi request reprint Radon measurement in Canada with electret ion chambers
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Health Phys 93:161-4. 2007
    ..Electret ion chambers are the most commonly used passive radon detectors. This paper discusses some practical issues associated with the use of electret ion chambers and provides background gamma correction factors for their use in Canada...
  52. ncbi request reprint Field evaluations of digital radon detectors
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa K1A 1C1, Canada
    Health Phys 93:S184-6. 2007
    ..In order to answer a frequently asked question regarding the performance of such low-cost electronic radon detectors, field evaluations were conducted. Evaluation results are reported here...
  53. doi request reprint Correlation of soil radon and permeability with indoor radon potential in Ottawa
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Ontario, Canada
    Radiat Prot Dosimetry 136:56-60. 2009
    ..Soil gas radon concentrations together with soil gas permeability measurements can be a useful tool for the prediction of the indoor radon potential in the development of a Canadian radon risk map...
  54. doi request reprint Radiation quality of tritium: a comparison with 60Co gamma rays
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa K1A 0K9, Canada
    Radiat Prot Dosimetry 156:372-5. 2013
    ..3 to 3.5 for HTO, and 2.3 to 5.6 for OBT. The results are consistent with radiobiological findings for various biological endpoints in different biological systems that OBT is about twice as effective as HTO. ..
  55. doi request reprint An estimation of Canadian population exposure to cosmic rays from air travel
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa K1A 0K9, Canada
    Radiat Environ Biophys 52:59-64. 2013
    ....
  56. doi request reprint Development of a medical resource database for radiological emergency preparedness
    Lauren Bergman
    Radiation Protection Bureau, Health Canada, Ottawa, ON, Canada
    Radiat Prot Dosimetry 142:29-32. 2010
    ..In order to maintain this database and keep it up to date, contributions from all levels of radiation protection professionals will be needed. In this paper, the database structure and the data collected will be presented and discussed...
  57. doi request reprint An estimation of Canadian population exposure to cosmic rays
    Jing Chen
    Radiation Protection Bureau Health Canada, Ottawa, Canada
    Radiat Environ Biophys 48:317-22. 2009
    ..84 mSv, and the population-weighted national average was 0.33 mSv. Averaged over solar activity, the Canadian population-weighted average annual effective dose due to cosmic ray exposure at ground level is estimated to be 0.31 mSv...
  58. doi request reprint A compilation of microdosimetry for uniformly distributed Auger emitters used in medicine
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ontario, Canada
    Int J Radiat Biol 84:1027-33. 2008
    ..To provide a compilation of microdosimetric characteristics for 12 Auger emitters commonly used in medicine...
  59. doi request reprint Fluence-to-absorbed dose conversion coefficients for use in radiological protection of embryo and foetus against external exposure to electrons from 10 MeV TO 10 GeV
    Jing Chen
    Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa K1A 1C1, Canada
    Health Phys 94:313-7. 2008
    ..Electron fluence-to-absorbed dose conversion coefficients were derived for the four prenatal ages...
  60. doi request reprint A study on the thoron sensitivity of radon detectors available to Canadians
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa K1A 0K9, Canada
    J Radiol Prot 32:419-25. 2012
    ..The average thoron sensitivity relative to radon varied from a factor of 0.012 to 0.74 for the five commonly available types of alpha track radon detectors. The potential impact of thoron sensitivity on radon test results is discussed...
  61. ncbi request reprint Radiation quality of tritium
    Jing Chen
    Radiation Protection Bureau, Health Canada, Ottawa K1A 1C1, Canada
    Radiat Prot Dosimetry 122:546-8. 2006
    ..7 higher than those of HTO in a wide range of target dimensions of biological interest. The results are consistent with radiobiological findings that OBT is about twice as effective as that of HTO...
  62. pmc The concept of equivalent radon concentration for practical consideration of indoor exposure to thoron
    Jing Chen
    Radiation Protection Bureau, Health Canada, 2720 Riverside Drive, Ottawa K1A 0K9, Canada
    Int J Environ Res Public Health 9:286-93. 2012
    ..In addition, because the thoron concentration is much lower than the radon concentration in most homes in Canada, there is no real need to re-test homes for thoron...