Not listed THE CONTINUING WORK BUILDS UPON OUR GROUND AND SPACE BASED STUDIES SO FAR - THEORETICAL COMPUTATIONAL AND EXPERIMENTAL TO INVESTIGATE STEADY AND UNSTEADY FLAME PROPAGATION OVER SOLID FUELS IN A MICROGRAVITY ENVIRONMENT. ONE OF THE CENTRAL HYPOTHESES OF THE RTDFS PROJECT IS THAT STEADY FLAME SPREAD OVER SOLID FUELS CANNOT BE SUSTAINED IN A MICROGRAVITY ENVIRONMENT EVEN AT HIGH OXYGEN ENVIRONMENT IF THE FUEL IS THICKER THAN A CRITICAL THICKNESS. AT LOWER OXYGEN LEVEL A SIMILAR SITUATION ARISES WHEN THE OPPOSING FLOW VELOCITY IS BELOW A CRITICAL VELOCITY. A SIMPLIFIED THEORY BASED ON SCALE ANALYSIS HAS PRODUCED CLOSED-FORM FORMULAS IN TERMS OF KNOWN PARAMETERS FOR THESE CRITICAL QUANTITIES. A COMPREHENSIVE COMPUTATIONAL MODEL THAT INCLUDES GAS AND SURFACE RADIATION FINITE-RATE CHEMISTRY FOR PYROLYSIS AND COMBUSTION SUPPORT THESE RESULTS. MOREOVER COMPUTATIONS REVEAL THAT THE ASYMMETRY BETWEEN THE THERMAL AND SPECIES FIELDS INTRODUCED BY RADIATIVE LOSSES IS RESPONSIBLE FOR A SLOWLY MOVING FLAME TO BE SURROUNDED BY A VITIATED ATMOSPHERE LEADING TO EXTINGUISHMENT. EARLIER SPACE BASED EXPERIMENTS SHOWED A SLOWING FLAME OVER THICK PMMA SLABS CONSISTENT WITH OUR FINDINGS. ALSO RECENT EXPERIMENTS IN BASS-II PROJECT HAS PRODUCED A WEALTH OF DATA AT RELATIVELY LOW OXYGEN LEVEL THAT ARE CONSISTENT WITH OUR PREDICTION. HOWEVER NO SPACE BASED EXPERIMENTS HAVE EVER BEEN PERFORMED TO TEST THE HYPOTHESIS THAT STEADY FLAME SPREAD OVER FUELS EXCEEDING A CERTAIN THICKNESS IS UNSUSTAINABLE EVEN AT HIGH OXYGEN LEVEL. ALSO THE ROLE PLAYED BY GAS RADIATION IS SUBJECT TO CONFLICTING THEORIES AS TO WHETHER THE RADIATION FEEDBACK OUTWEIGHS THE COOLING EFFECT ON THE FLAME IN AFFECTING THE FLAME SPREAD RATE. THE PROPOSED SPACE BASED EXPERIMENTS IN THE SOFIE PROJECT ARE INTENDED TO ESTABLISH THE CRITICAL FUEL THICKNESS CRITICAL FLOW VELOCITY AND EXPERIMENTALLY ESTABLISH THE MECHANISM OF FLAME EXTINGUISHMENT. THE CURRENT EXTENSION PROPOSAL IS TO CONTINUE OUR GROUND BASED EFFORT FOR THE SUCCESSFUL OUTCOME OF THE FLIGHT EXPERIMENTS. THE PROPOSED WORK IS DIVIDED INTO THIRTEEN SECTIONS DESCRIBED BELOW INCLUDING: (A) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME STABILIZER APPARATUS AT SDSU TO MAP OUT THE CARBON DIOXIDE AND RADIATION FIELDS FOR DOWNWARD FLAME SPREAD (B) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TUNNEL APPARATUS TO STUDY BLOW-OFF EXTINCTION FOR COMPARISON WITH RADIATIVE QUENCHING WE ANTICIPATE IN THE SOFIE EXPERIMENTS (C) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TOWER APPARATUS TO STUDY TRANSITION BETWEEN WIND-OPPOSED FLAME SPREAD AND WIND-AIDED FLAME SPREAD (D) DROP-TOWER EXPERIMENTS IN SUPPORT OF FLIGHT DIAGNOSTICS (E) INTEGRATE THE DATA OBTAINED FROM BASS-II EXPERIMENTS WITH GROUND BASED DATA TO REFINE THE PREDICTIVE FORMULAS IN THE THERMAL REGIME (F) FURTHER ANALYSIS OF BASS-II DATA AND DEVELOPMENT OF A MATLAB BASED ALTERNATIVE TO SPOTLIGHT PROGRAM FOR IMAGE ANALYSIS (G) COMPUTATIONAL SUPPORT FOR ALL EXPERIMENTAL WORK AND REFINEMENT OF THE RADIATION MODEL TO EXPLORE THE ROLE OF GAS RADIATION. 0$ 2/18/22 16 THE CONTINUING WORK BUILDS UPON OUR GROUND AND SPACE BASED STUDIES SO FAR - THEORETICAL, COMPUTATIONAL AND EXPERIMENTAL TO INVESTIGATE STEADY AND UNSTEADY FLAME PROPAGATION OVER SOLID FUELS IN A MICROGRAVITY ENVIRONMENT. ONE OF THE CENTRAL HYPOTHESES OF THE RTDFS PROJECT IS THAT STEADY FLAME SPREAD OVER SOLID FUELS CANNOT BE SUSTAINED IN A MICROGRAVITY ENVIRONMENT EVEN AT HIGH OXYGEN ENVIRONMENT IF THE FUEL IS THICKER THAN A CRITICAL THICKNESS. AT LOWER OXYGEN LEVEL, A SIMILAR SITUATION ARISES WHEN THE OPPOSING FLOW VELOCITY IS BELOW A CRITICAL VELOCITY. A SIMPLIFIED THEORY BASED ON SCALE ANALYSIS HAS PRODUCED CLOSED-FORM FORMULAS IN TERMS OF KNOWN PARAMETERS FOR THESE CRITICAL QUANTITIES. A COMPREHENSIVE COMPUTATIONAL MODEL THAT INCLUDES GAS AND SURFACE RADIATION, FINITE-RATE CHEMISTRY FOR PYROLYSIS AND COMBUSTION SUPPORT THESE RESULTS. MOREOVER, COMPUTATIONS REVEAL THAT THE ASYMMETRY BETWEEN THE THERMAL AND SPECIES FIELDS INTRODUCED BY RADIATIVE LOSSES IS RESPONSIBLE FOR A SLOWLY MOVING FLAME TO BE SURROUNDED BY A VITIATED ATMOSPHERE LEADING TO EXTINGUISHMENT. EARLIER SPACE BASED EXPERIMENTS SHOWED A SLOWING FLAME OVER THICK PMMA SLABS CONSISTENT WITH OUR FINDINGS. ALSO, RECENT EXPERIMENTS IN BASS-II PROJECT HAS PRODUCED A WEALTH OF DATA AT RELATIVELY LOW OXYGEN LEVEL THAT ARE CONSISTENT WITH OUR PREDICTION. HOWEVER, NO SPACE BASED EXPERIMENTS HAVE EVER BEEN PERFORMED TO TEST THE HYPOTHESIS THAT STEADY FLAME SPREAD OVER FUELS EXCEEDING A CERTAIN THICKNESS IS UNSUSTAINABLE EVEN AT HIGH OXYGEN LEVEL. ALSO, THE ROLE PLAYED BY GAS RADIATION IS SUBJECT TO CONFLICTING THEORIES AS TO WHETHER THE RADIATION FEEDBACK OUTWEIGHS THE COOLING EFFECT ON THE FLAME IN AFFECTING THE FLAME SPREAD RATE. THE PROPOSED SPACE BASED EXPERIMENTS IN THE SOFIE PROJECT ARE INTENDED TO ESTABLISH THE CRITICAL FUEL THICKNESS, CRITICAL FLOW VELOCITY, AND EXPERIMENTALLY ESTABLISH THE MECHANISM OF FLAME EXTINGUISHMENT. THE CURRENT EXTENSION PROPOSAL IS TO CONTINUE OUR GROUND BASED EFFORT FOR THE SUCCESSFUL OUTCOME OF THE FLIGHT EXPERIMENTS. THE PROPOSED WORK IS DIVIDED INTO THIRTEEN SECTIONS DESCRIBED BELOW INCLUDING: (A) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME STABILIZER APPARATUS AT SDSU TO MAP OUT THE CARBON DIOXIDE AND RADIATION FIELDS FOR DOWNWARD FLAME SPREAD (B) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TUNNEL APPARATUS TO STUDY BLOW-OFF EXTINCTION FOR COMPARISON WITH RADIATIVE QUENCHING WE ANTICIPATE IN THE SOFIE EXPERIMENTS, (C) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TOWER APPARATUS TO STUDY TRANSITION BETWEEN WIND-OPPOSED FLAME SPREAD AND WIND-AIDED FLAME SPREAD, (D) DROP-TOWER EXPERIMENTS IN SUPPORT OF FLIGHT DIAGNOSTICS, (E) INTEGRATE THE DATA OBTAINED FROM BASS-II EXPERIMENTS WITH GROUND BASED DATA TO REFINE THE PREDICTIVE FORMULAS IN THE THERMAL REGIME, (F) FURTHER ANALYSIS OF BASS-II DATA AND DEVELOPMENT OF A MATLAB BASED ALTERNATIVE TO SPOTLIGHT PROGRAM FOR IMAGE ANALYSIS, (G) COMPUTATIONAL SUPPORT FOR ALL EXPERIMENTAL WORK AND REFINEMENT OF THE RADIATION MODEL TO EXPLORE THE ROLE OF GAS RADIATION. Funding Only Action 0$ 2/18/22 15 THE CONTINUING WORK BUILDS UPON OUR GROUND AND SPACE BASED STUDIES SO FAR - THEORETICAL, COMPUTATIONAL AND EXPERIMENTAL TO INVESTIGATE STEADY AND UNSTEADY FLAME PROPAGATION OVER SOLID FUELS IN A MICROGRAVITY ENVIRONMENT. ONE OF THE CENTRAL HYPOTHESES OF THE RTDFS PROJECT IS THAT STEADY FLAME SPREAD OVER SOLID FUELS CANNOT BE SUSTAINED IN A MICROGRAVITY ENVIRONMENT EVEN AT HIGH OXYGEN ENVIRONMENT IF THE FUEL IS THICKER THAN A CRITICAL THICKNESS. AT LOWER OXYGEN LEVEL, A SIMILAR SITUATION ARISES WHEN THE OPPOSING FLOW VELOCITY IS BELOW A CRITICAL VELOCITY. A SIMPLIFIED THEORY BASED ON SCALE ANALYSIS HAS PRODUCED CLOSED-FORM FORMULAS IN TERMS OF KNOWN PARAMETERS FOR THESE CRITICAL QUANTITIES. A COMPREHENSIVE COMPUTATIONAL MODEL THAT INCLUDES GAS AND SURFACE RADIATION, FINITE-RATE CHEMISTRY FOR PYROLYSIS AND COMBUSTION SUPPORT THESE RESULTS. MOREOVER, COMPUTATIONS REVEAL THAT THE ASYMMETRY BETWEEN THE THERMAL AND SPECIES FIELDS INTRODUCED BY RADIATIVE LOSSES IS RESPONSIBLE FOR A SLOWLY MOVING FLAME TO BE SURROUNDED BY A VITIATED ATMOSPHERE LEADING TO EXTINGUISHMENT. EARLIER SPACE BASED EXPERIMENTS SHOWED A SLOWING FLAME OVER THICK PMMA SLABS CONSISTENT WITH OUR FINDINGS. ALSO, RECENT EXPERIMENTS IN BASS-II PROJECT HAS PRODUCED A WEALTH OF DATA AT RELATIVELY LOW OXYGEN LEVEL THAT ARE CONSISTENT WITH OUR PREDICTION. HOWEVER, NO SPACE BASED EXPERIMENTS HAVE EVER BEEN PERFORMED TO TEST THE HYPOTHESIS THAT STEADY FLAME SPREAD OVER FUELS EXCEEDING A CERTAIN THICKNESS IS UNSUSTAINABLE EVEN AT HIGH OXYGEN LEVEL. ALSO, THE ROLE PLAYED BY GAS RADIATION IS SUBJECT TO CONFLICTING THEORIES AS TO WHETHER THE RADIATION FEEDBACK OUTWEIGHS THE COOLING EFFECT ON THE FLAME IN AFFECTING THE FLAME SPREAD RATE. THE PROPOSED SPACE BASED EXPERIMENTS IN THE SOFIE PROJECT ARE INTENDED TO ESTABLISH THE CRITICAL FUEL THICKNESS, CRITICAL FLOW VELOCITY, AND EXPERIMENTALLY ESTABLISH THE MECHANISM OF FLAME EXTINGUISHMENT. THE CURRENT EXTENSION PROPOSAL IS TO CONTINUE OUR GROUND BASED EFFORT FOR THE SUCCESSFUL OUTCOME OF THE FLIGHT EXPERIMENTS. THE PROPOSED WORK IS DIVIDED INTO THIRTEEN SECTIONS DESCRIBED BELOW INCLUDING: (A) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME STABILIZER APPARATUS AT SDSU TO MAP OUT THE CARBON DIOXIDE AND RADIATION FIELDS FOR DOWNWARD FLAME SPREAD (B) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TUNNEL APPARATUS TO STUDY BLOW-OFF EXTINCTION FOR COMPARISON WITH RADIATIVE QUENCHING WE ANTICIPATE IN THE SOFIE EXPERIMENTS, (C) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TOWER APPARATUS TO STUDY TRANSITION BETWEEN WIND-OPPOSED FLAME SPREAD AND WIND-AIDED FLAME SPREAD, (D) DROP-TOWER EXPERIMENTS IN SUPPORT OF FLIGHT DIAGNOSTICS, (E) INTEGRATE THE DATA OBTAINED FROM BASS-II EXPERIMENTS WITH GROUND BASED DATA TO REFINE THE PREDICTIVE FORMULAS IN THE THERMAL REGIME, (F) FURTHER ANALYSIS OF BASS-II DATA AND DEVELOPMENT OF A MATLAB BASED ALTERNATIVE TO SPOTLIGHT PROGRAM FOR IMAGE ANALYSIS, (G) COMPUTATIONAL SUPPORT FOR ALL EXPERIMENTAL WORK AND REFINEMENT OF THE RADIATION MODEL TO EXPLORE THE ROLE OF GAS RADIATION. Other Administrative Action $0 3/30/21 Not listed THE CONTINUING WORK BUILDS UPON OUR GROUND AND SPACE BASED STUDIES SO FAR - THEORETICAL COMPUTATIONAL AND EXPERIMENTAL TO INVESTIGATE STEADY AND UNSTEADY FLAME PROPAGATION OVER SOLID FUELS IN A MICROGRAVITY ENVIRONMENT. ONE OF THE CENTRAL HYPOTHESES OF THE RTDFS PROJECT IS THAT STEADY FLAME SPREAD OVER SOLID FUELS CANNOT BE SUSTAINED IN A MICROGRAVITY ENVIRONMENT EVEN AT HIGH OXYGEN ENVIRONMENT IF THE FUEL IS THICKER THAN A CRITICAL THICKNESS. AT LOWER OXYGEN LEVEL A SIMILAR SITUATION ARISES WHEN THE OPPOSING FLOW VELOCITY IS BELOW A CRITICAL VELOCITY. A SIMPLIFIED THEORY BASED ON SCALE ANALYSIS HAS PRODUCED CLOSED-FORM FORMULAS IN TERMS OF KNOWN PARAMETERS FOR THESE CRITICAL QUANTITIES. A COMPREHENSIVE COMPUTATIONAL MODEL THAT INCLUDES GAS AND SURFACE RADIATION FINITE-RATE CHEMISTRY FOR PYROLYSIS AND COMBUSTION SUPPORT THESE RESULTS. MOREOVER COMPUTATIONS REVEAL THAT THE ASYMMETRY BETWEEN THE THERMAL AND SPECIES FIELDS INTRODUCED BY RADIATIVE LOSSES IS RESPONSIBLE FOR A SLOWLY MOVING FLAME TO BE SURROUNDED BY A VITIATED ATMOSPHERE LEADING TO EXTINGUISHMENT. EARLIER SPACE BASED EXPERIMENTS SHOWED A SLOWING FLAME OVER THICK PMMA SLABS CONSISTENT WITH OUR FINDINGS. ALSO RECENT EXPERIMENTS IN BASS-II PROJECT HAS PRODUCED A WEALTH OF DATA AT RELATIVELY LOW OXYGEN LEVEL THAT ARE CONSISTENT WITH OUR PREDICTION. HOWEVER NO SPACE BASED EXPERIMENTS HAVE EVER BEEN PERFORMED TO TEST THE HYPOTHESIS THAT STEADY FLAME SPREAD OVER FUELS EXCEEDING A CERTAIN THICKNESS IS UNSUSTAINABLE EVEN AT HIGH OXYGEN LEVEL. ALSO THE ROLE PLAYED BY GAS RADIATION IS SUBJECT TO CONFLICTING THEORIES AS TO WHETHER THE RADIATION FEEDBACK OUTWEIGHS THE COOLING EFFECT ON THE FLAME IN AFFECTING THE FLAME SPREAD RATE. THE PROPOSED SPACE BASED EXPERIMENTS IN THE SOFIE PROJECT ARE INTENDED TO ESTABLISH THE CRITICAL FUEL THICKNESS CRITICAL FLOW VELOCITY AND EXPERIMENTALLY ESTABLISH THE MECHANISM OF FLAME EXTINGUISHMENT. THE CURRENT EXTENSION PROPOSAL IS TO CONTINUE OUR GROUND BASED EFFORT FOR THE SUCCESSFUL OUTCOME OF THE FLIGHT EXPERIMENTS. THE PROPOSED WORK IS DIVIDED INTO THIRTEEN SECTIONS DESCRIBED BELOW INCLUDING: (A) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME STABILIZER APPARATUS AT SDSU TO MAP OUT THE CARBON DIOXIDE AND RADIATION FIELDS FOR DOWNWARD FLAME SPREAD (B) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TUNNEL APPARATUS TO STUDY BLOW-OFF EXTINCTION FOR COMPARISON WITH RADIATIVE QUENCHING WE ANTICIPATE IN THE SOFIE EXPERIMENTS (C) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TOWER APPARATUS TO STUDY TRANSITION BETWEEN WIND-OPPOSED FLAME SPREAD AND WIND-AIDED FLAME SPREAD (D) DROP-TOWER EXPERIMENTS IN SUPPORT OF FLIGHT DIAGNOSTICS (E) INTEGRATE THE DATA OBTAINED FROM BASS-II EXPERIMENTS WITH GROUND BASED DATA TO REFINE THE PREDICTIVE FORMULAS IN THE THERMAL REGIME (F) FURTHER ANALYSIS OF BASS-II DATA AND DEVELOPMENT OF A MATLAB BASED ALTERNATIVE TO SPOTLIGHT PROGRAM FOR IMAGE ANALYSIS (G) COMPUTATIONAL SUPPORT FOR ALL EXPERIMENTAL WORK AND REFINEMENT OF THE RADIATION MODEL TO EXPLORE THE ROLE OF GAS RADIATION. $0 3/30/21 Not listed THE CONTINUING WORK BUILDS UPON OUR GROUND AND SPACE BASED STUDIES SO FAR - THEORETICAL COMPUTATIONAL AND EXPERIMENTAL TO INVESTIGATE STEADY AND UNSTEADY FLAME PROPAGATION OVER SOLID FUELS IN A MICROGRAVITY ENVIRONMENT. ONE OF THE CENTRAL HYPOTHESES OF THE RTDFS PROJECT IS THAT STEADY FLAME SPREAD OVER SOLID FUELS CANNOT BE SUSTAINED IN A MICROGRAVITY ENVIRONMENT EVEN AT HIGH OXYGEN ENVIRONMENT IF THE FUEL IS THICKER THAN A CRITICAL THICKNESS. AT LOWER OXYGEN LEVEL A SIMILAR SITUATION ARISES WHEN THE OPPOSING FLOW VELOCITY IS BELOW A CRITICAL VELOCITY. A SIMPLIFIED THEORY BASED ON SCALE ANALYSIS HAS PRODUCED CLOSED-FORM FORMULAS IN TERMS OF KNOWN PARAMETERS FOR THESE CRITICAL QUANTITIES. A COMPREHENSIVE COMPUTATIONAL MODEL THAT INCLUDES GAS AND SURFACE RADIATION FINITE-RATE CHEMISTRY FOR PYROLYSIS AND COMBUSTION SUPPORT THESE RESULTS. MOREOVER COMPUTATIONS REVEAL THAT THE ASYMMETRY BETWEEN THE THERMAL AND SPECIES FIELDS INTRODUCED BY RADIATIVE LOSSES IS RESPONSIBLE FOR A SLOWLY MOVING FLAME TO BE SURROUNDED BY A VITIATED ATMOSPHERE LEADING TO EXTINGUISHMENT. EARLIER SPACE BASED EXPERIMENTS SHOWED A SLOWING FLAME OVER THICK PMMA SLABS CONSISTENT WITH OUR FINDINGS. ALSO RECENT EXPERIMENTS IN BASS-II PROJECT HAS PRODUCED A WEALTH OF DATA AT RELATIVELY LOW OXYGEN LEVEL THAT ARE CONSISTENT WITH OUR PREDICTION. HOWEVER NO SPACE BASED EXPERIMENTS HAVE EVER BEEN PERFORMED TO TEST THE HYPOTHESIS THAT STEADY FLAME SPREAD OVER FUELS EXCEEDING A CERTAIN THICKNESS IS UNSUSTAINABLE EVEN AT HIGH OXYGEN LEVEL. ALSO THE ROLE PLAYED BY GAS RADIATION IS SUBJECT TO CONFLICTING THEORIES AS TO WHETHER THE RADIATION FEEDBACK OUTWEIGHS THE COOLING EFFECT ON THE FLAME IN AFFECTING THE FLAME SPREAD RATE. THE PROPOSED SPACE BASED EXPERIMENTS IN THE SOFIE PROJECT ARE INTENDED TO ESTABLISH THE CRITICAL FUEL THICKNESS CRITICAL FLOW VELOCITY AND EXPERIMENTALLY ESTABLISH THE MECHANISM OF FLAME EXTINGUISHMENT. THE CURRENT EXTENSION PROPOSAL IS TO CONTINUE OUR GROUND BASED EFFORT FOR THE SUCCESSFUL OUTCOME OF THE FLIGHT EXPERIMENTS. THE PROPOSED WORK IS DIVIDED INTO THIRTEEN SECTIONS DESCRIBED BELOW INCLUDING: (A) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME STABILIZER APPARATUS AT SDSU TO MAP OUT THE CARBON DIOXIDE AND RADIATION FIELDS FOR DOWNWARD FLAME SPREAD (B) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TUNNEL APPARATUS TO STUDY BLOW-OFF EXTINCTION FOR COMPARISON WITH RADIATIVE QUENCHING WE ANTICIPATE IN THE SOFIE EXPERIMENTS (C) A COMPREHENSIVE SET OF EXPERIMENTS IN THE FLAME TOWER APPARATUS TO STUDY TRANSITION BETWEEN WIND-OPPOSED FLAME SPREAD AND WIND-AIDED FLAME SPREAD (D) DROP-TOWER EXPERIMENTS IN SUPPORT OF FLIGHT DIAGNOSTICS (E) INTEGRATE THE DATA OBTAINED FROM BASS-II EXPERIMENTS WITH GROUND BASED DATA TO REFINE THE PREDICTIVE FORMULAS IN THE THERMAL REGIME (F) FURTHER ANALYSIS OF BASS-II DATA AND DEVELOPMENT OF A MATLAB BASED ALTERNATIVE TO SPOTLIGHT PROGRAM FOR IMAGE ANALYSIS (G) COMPUTATIONAL SUPPORT FOR ALL EXPERIMENTAL WORK AND REFINEMENT OF THE RADIATION MODEL TO EXPLORE THE ROLE OF GAS RADIATION. $23.0k 3/23/21