The use of tissue-equivalent plastic as the absorbing element for absolute calorimetric measurement of dose is limited by uncertainties existing in the heat lost by endothermic processes induced in the plastic by the absorbed radiation. Measurements have been conducted to determine experimentally the difference between the absorbed energy and the resulting thermal energy, a thermal defect, for Shonka-type tissue-equivalent plastic when irradiated by monoenergetic protons. Results of this work indicate that the thermal defect varies with total absorbed dose and is nearly twice as great as has been predicted for a similar plastic on the basis of independently determined G values. An extrapolated zero-dose value for the thermal defect was found to be 4.17 ± 0.2%. The thermal defect decreases with accumulated absorbed dose and appears to reach a saturation value of 3.67% for doses above 108 rads.
Skip Nav Destination
Research Article| February 01 1969
Endothermic Processes in Tissue-Equivalent Plastic
Radiat Res (1969) 37 (2): 316–322.
- Views Icon Views
- Share Icon Share
- Search Site
D. M. Fleming, W. A. Glass; Endothermic Processes in Tissue-Equivalent Plastic. Radiat Res 1 February 1969; 37 (2): 316–322. doi: https://doi.org/10.2307/3572735
Download citation file:
Citing articles via
Commonalities Between COVID-19 and Radiation Injury
Carmen I. Rios, David R. Cassatt, Brynn A. Hollingsworth, Merriline M. Satyamitra, Yeabsera S. Tadesse, Lanyn P. Taliaferro, Thomas A. Winters, Andrea L. DiCarlo
Low-Dose Radiation Therapy (LDRT) for COVID-19: Benefits or Risks?
Pataje G. Prasanna, Gayle E. Woloschak, Andrea L. DiCarlo, Jeffrey C. Buchsbaum, Dörthe Schaue, Arnab Chakravarti, Francis A. Cucinotta, Silvia C. Formenti, Chandan Guha, Dale J. Hu, Mohammad K. Khan, David G. Kirsch, Sunil Krishnan, Wolfgang W. Leitner, Brian Marples, William McBride, Minesh P. Mehta, Shahin Rafii, Elad Sharon, Julie M. Sullivan, Ralph R. Weichselbaum, Mansoor M. Ahmed, Bhadrasain Vikram, C. Norman Coleman, Kathryn D. Held
Germicidal Efficacy and Mammalian Skin Safety of 222-nm UV Light
Manuela Buonanno, Brian Ponnaiya, David Welch, Milda Stanislauskas, Gerhard Randers-Pehrson, Lubomir Smilenov, Franklin D. Lowy, David M. Owens, David J. Brenner