Recommended radionuclide trivia

Question 1

H-3 Decays by:Rev. 1

Answer 1

Beta Minus

Question 2

H-3 energyRev. 1

Answer 2

18.6 Kev

Question 3

H-3 half lifeRev. 1

Answer 3

12.3 Years

Question 4

Detection for H-3Rev. 1

Answer 4

LSC, bioassay

Question 5

C-14 Decays byRev. 1

Answer 5

Beta Minus

Question 6

C-14 Max EnergyRev. 1

Answer 6

156 keV

Question 7

Detection of C-14Rev. 1

Answer 7

LSC, 5-10% efficiency for GM meters, bioassay

Question 8

F-18 Decays by:Rev. 1

Answer 8

Positron, Gamma

Question 9

F-18 energiesRev. 1

Answer 9

636 keV Positron, 511 keV gamma (193%)

Question 10

F-18 Half LifeRev. 1

Answer 10

1.83 hours

Question 11

Internal detection of F-18Rev. 1

Answer 11

Dosimetry badge

Question 12

Detection of F-18Rev. 1

Answer 12

GM probe, Gamma counter, LSC

Question 13

Ra-226 Decays byRev. 1

Answer 13

Alpha

Question 14

Ra-226 energiesRev. 1

Answer 14

4.785 MeV alpha, 186 keV gamma

Question 15

Ra-226 half lifeRev. 1

Answer 15

1600 years

Question 16

Detection of Ra-226Rev. 1

Answer 16

ZnS scintillation (calibrated for Rn-226), LSC

Question 17

Am-241 decays byRev. 1

Answer 17

Alpha

Question 18

Am-241 energiesRev. 1

Answer 18

5.49 MeV alpha, 59 keV gamma

Question 19

Am-241 detectionRev. 1

Answer 19

ZnS scintillation (Calibrated for Am-241), LSC

Question 20

P-32 decays byRev. 1

Answer 20

Beta Minus

Question 21

P-32 max energyRev. 1

Answer 21

1.710 MeV

Question 22

P-32 half lifeRev. 1

Answer 22

14.29 day half life

Question 23

P-32 detectionRev. 1

Answer 23

Dosimetry badge, GM probe, LSC

Question 24

S-35 decays byRev. 1

Answer 24

Beta Minus

Question 25

S-35 max energyRev. 1

Answer 25

167 keV

Question 26

S-35 half lifeRev. 1

Answer 26

87 days

Question 27

S-35 detectionRev. 1

Answer 27

Urine Bioassay, LSC, 5-10% efficiency for GM meters

Question 28

Co-60 decays byRev. 1

Answer 28

Beta Minus

Question 29

Co-60 energyRev. 1

Answer 29

317 keV Beta, 1.17 MeV gamma, 1.33 MeV gamma

Question 30

Co-60 half lifeRev. 1

Answer 30

5.27 years

Question 31

Co-60 detectionRev. 1

Answer 31

GM counter, ion chamber, calibrated scintillation probe, gamma counter

Question 32

Sr-90 decays byRev. 1

Answer 32

Beta Minus

Question 33

Sr-90 energyRev. 1

Answer 33

546 keV beta, 2.484 MeV beta from Y-90 daughter

Question 34

Sr-90 half life and Y-90 half lifeRev. 1

Answer 34

Sr-90 = 28.3 years, Y-90 = 2.7 days

Question 35

Sr-90 detectionRev. 1

Answer 35

Badges, GM, LSC

Question 36

I-125 decays byRev. 1

Answer 36

electron capture

Question 37

I-125 energyRev. 1

Answer 37

35.5 keV gamma, 27 keV X-ray

Question 38

I-125 half lifeRev. 1

Answer 38

60 days

Question 39

I-125 detectionRev. 1

Answer 39

Badge, Thyroid bioassay, GM, LEG, LSC

Question 40

I-131 decays by Rev. 1

Answer 40

Beta Minus

Question 41

I-131 energyRev. 1

Answer 41

606 keV, 364 keV gamma

Question 42

I-131 half lifeRev. 1

Answer 42

8.03 days

Question 43

I-131 detectionRev. 1

Answer 43

Badge, Thyroid count, GM, LSC, Gamma counter

Question 44

Cs-137 decays byRev. 1

Answer 44

Beta Minus

Question 45

Cs-137 energiesRev. 1

Answer 45

512 keV beta, 0.662 MEV delayed gamma from Ba-137

Question 46

Cs-137 half lifeRev. 1

Answer 46

30.17 years

Question 47

Cs-137 detectionRev. 1

Answer 47

Badges, GM, LSC, Gamma counter

Question 48

Properties of Tc-99m (5 of them)Rev. 1

Answer 48

a) Artificially producedb) Meta-stable state decays from Mo-99c) Half life = 6 hoursd) Pure gamma emission ~ 140 keVe) no known toxicity to humans

Question 49

Depleted Uranium definition (amounts)Rev. 1

Answer 49

Uranium with the percentage of U-235 lower than 0.7% by mass contained in natural uranium