RADON TEST SPRUCE ACTUAL EXAM SET
2026 COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ Charcoal Canisters, How is it Analyzed. Answer: Gamma From Lead
214 and Bismuth 214 Interacts with Sodium Iodide (scintillator)
Photomultiplier/spectrometry
◉ Charcoal Canisters , Cautions. Answer: Not a true Integratior/ Baised
in last 12/24 hours, Humidity/ Temperature/ Air velocity cannot measure
past 7 days
◉ Charcoal Canisters, quality control. Answer: 10% or 50 month;
duplicates, 5% or 25 month blanks, 3% or 6 month minimum 3 per year
spikes
◉ Liquid Scintillation (passive), What does it measure/how. Answer:
RN(alpha& Beta); Equilibrator Adsorb-desorb radon; 2-3 day open-
faced; 5-7 day diffusion barrier
◉ Liquid Scintillation (passive), How is it Analyzed. Answer: A liquid
scintillate is added to vial. Alphas and betas creat light flashes that are
counted/ amplified with a photomultiplier tube/spectrometry
, ◉ Liquid Scintillation (Passive), Cautions. Answer: Not a true
Integrator/Biased in the last 12/24 hrs, Humidity/ Temerature/ Air
Velocity, can not measur passed 7 days
◉ Liquid Scintillation (Passive), Quality Control. Answer: 10%
50/month duplicates, 5% or 25/ month blanks, 3% or 6/month minimum
3/ yr Spikes
◉ Alpha Track (Passive), What does it measure/how. Answer: Track
damage to plastic chip from Rn alpha particles (filtered) Alphas from
both gas and RDP's (unfiltered)
◉ Alpha Track (Passive), How is it Analyzed. Answer: CHip is soaked
in emulsifying acid to make the tracks stand out. Optical reader counts
them and based on how long it's deployed radon concentration
calculated.
◉ Alpha Track (Passive), Cautions. Answer: Cannot measure short term;
Temperature. Humidity/ air velocity
◉ Alpha Track (Passive), Quality Control. Answer: 10% 50/month
duplicates, 5% or 25/ month blanks, 3% or 6/month minimum 3/ yr
Spikes
2026 COMPLETE QUESTIONS AND CORRECT
ANSWERS
◉ Charcoal Canisters, How is it Analyzed. Answer: Gamma From Lead
214 and Bismuth 214 Interacts with Sodium Iodide (scintillator)
Photomultiplier/spectrometry
◉ Charcoal Canisters , Cautions. Answer: Not a true Integratior/ Baised
in last 12/24 hours, Humidity/ Temperature/ Air velocity cannot measure
past 7 days
◉ Charcoal Canisters, quality control. Answer: 10% or 50 month;
duplicates, 5% or 25 month blanks, 3% or 6 month minimum 3 per year
spikes
◉ Liquid Scintillation (passive), What does it measure/how. Answer:
RN(alpha& Beta); Equilibrator Adsorb-desorb radon; 2-3 day open-
faced; 5-7 day diffusion barrier
◉ Liquid Scintillation (passive), How is it Analyzed. Answer: A liquid
scintillate is added to vial. Alphas and betas creat light flashes that are
counted/ amplified with a photomultiplier tube/spectrometry
, ◉ Liquid Scintillation (Passive), Cautions. Answer: Not a true
Integrator/Biased in the last 12/24 hrs, Humidity/ Temerature/ Air
Velocity, can not measur passed 7 days
◉ Liquid Scintillation (Passive), Quality Control. Answer: 10%
50/month duplicates, 5% or 25/ month blanks, 3% or 6/month minimum
3/ yr Spikes
◉ Alpha Track (Passive), What does it measure/how. Answer: Track
damage to plastic chip from Rn alpha particles (filtered) Alphas from
both gas and RDP's (unfiltered)
◉ Alpha Track (Passive), How is it Analyzed. Answer: CHip is soaked
in emulsifying acid to make the tracks stand out. Optical reader counts
them and based on how long it's deployed radon concentration
calculated.
◉ Alpha Track (Passive), Cautions. Answer: Cannot measure short term;
Temperature. Humidity/ air velocity
◉ Alpha Track (Passive), Quality Control. Answer: 10% 50/month
duplicates, 5% or 25/ month blanks, 3% or 6/month minimum 3/ yr
Spikes
