| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 7D10.00 | Radioactivity | | |
| 7D10.09 | radiation saftey | TPT 3(4),158 | Introduction
to the handbook "Radiation Protection in Teaching Institutions" with brief
presentation of urgently needed information. |
| 7D10.10 | gieger counter & samples | PIRA 200 | Listen to a Geiger counter when radioactive samples are tested. |
| 7D10.10 | gieger counter & samples | 7D10.10 | |
| 7D10.11 | sources of radioactivity | A-111 | Obtain radioactive ore or old radon seeds. |
| 7D10.12 | radioactive plate | A-18d | A red "fiesta" plate is checked for radioactivity. |
| 7D10.15 | coin flip half life | PIRA 1000 | |
| 7D10.20 | half life with isotope generator | PIRA 1000 | |
| 7D10.20 | half life with isotope generator | AJP 39(2),221 | Three isotope generators that can be "milked". |
| 7D10.20 | half life | Disc 25-16 | The half life of a barium 137 sample recorded on a computer based analyzer. |
| 7D10.21 | isotope generator | AJP 39(10),1274 | The commercial Cs/Ba generator. |
| 7D10.21 | isotope generator | AJP 39(10),1282 | On the amount of the longer-lived Sn coming through the generator. |
| 7D10.21 | reply to comment | AJP 39(10),1282 | You idiots. |
| 7D10.25 | radon in the air | PIRA 1000 | |
| 7D10.25 | radon, thoron in the air | 41-1.6 | Pump air through a filter and measure the decay to get two half lives of 32 min and 10 hr. |
| 7D10.25 | radon in the air half life | A-15d | Pump air through a filter and place the filter under a counter attached to a strip chart recorder. Reference: AJP 28(11),743. |
| 7D10.27 | emanation electroscope | AJP 29(11),789 | Demonstrate thorium half life by observing the decay of an emanation electroscope. |
| 7D10.27 | emanation electroscope | A-15e | The Welch emanation electroscope is used to demonstrate thorium half life. Reference: AJP 29(11),789. |
| 7D10.30 | contamination by neutron source | PIRA 1000 | |
| 7D10.30 | contamination by neutron source | 41-1.1 | A coin is placed with a neutron source on a paraffin block for a minute and then tested for radioactivity. |
| 7D10.31 | buildup and decay | AJP 34(3),246 | Aluminum foil on the rim of a wheel rotates between a neutron source and beta detector. |
| 7D10.33 | half life of silver | A-15f | Measure the half life of silver activated by a neutron source. |
| 7D10.33 | half life of silver | A-18c | Use a neutron source and silver dollar. |
| 7D10.36 | radoiactive iodine source | AJP 31(9),734 | Irradiate the sodium iodide crystal that is in the scintillation spectrometer. |
| 7D10.40 | secular equilibrium | PIRA 500 | |
| 7D10.40 | secular and transient equilibrium | 41-1.4 | Water flow models of the half life of the daughter being much less and less than the parent. |
| 7D10.40 | radioactive decay model | A-115 | Cylindrical vessels placed above each other show a hydraulic model of radioactive decay. |
| 7D10.41 | secular equilibruim in series | 41-1.5 | A model of a series of disintegrations with a series of capillary tubes emptying into each other. |
| 7D10.41 | simultaneous decay model | 41-1.3 | Water from two capillaries starting with water at different heights is collected and the results plotted. |
| 7D10.42 | water flow model of decay | 41-1.2 | Water
drips from a capillary for equal time intervals into a series of test tubes.
In another setup, the water drips through wire meshes to a counter. |
| 7D10.45 | electrical analog of decay | PIRA 1000 | |
| 7D10.47 | electric analog of decay | AJP 46(2),189 | An electrical circuit allows three consecutive first-order rate reactions. |
| 7D10.47 | atomic radiative decay analog | AJP 45(3),288 | The response of an electrical circuit is compared to the decay characteristics of coupled three level atomic systems. |
| 7D10.48 | analog computer decay model | AJP 39(11),1408 | Circuit for an analog computer does three stage nuclear chain decay. |
| 7D10.50 | dice on the overhead | PIRA 1000 | |
| 7D10.50 | dice on the overhead | 7D10.50 | |
| 7D10.50 | dice on the overhead | AJP 51(2),185 | Drill
a face centered hole through each of twenty dice and roll he bunch on an
overhead projector, removing the ones that light shows through. |
| 7D10.55 | coin toss half life | PIRA 1000 | |
| 7D10.60 | range and absorption | PIRA 500 | |
| 7D10.60 | range and absorption | 7D10.50 | Different barriers are placed between a gamma source and a detector. |
| 7D10.60 | nuclear shielding | Disc 25-14 | Cardboard, aluminum, and lead sheets shield a detector. |
| 7D10.61 | beta and gamma ray absorption | A-16a | A set of absorbers for showing alpha, beta, and gamma absorption. |
| 7D10.65 | exponential absorption model | 41-1.7 | A series of neutral density filters are added to a light and photocell arrangement to model absorption. |
| 7D10.70 | range of alpha particles | A-113 | Bring an alpha source near a grid and plate connected to an electroscope. |
| 7D10.75 | scattering of alpha particles | A-114 | A thin metal foil placed between an alpha source and a detector shows the intensity of scattering dependent on angle. |
| 7D10.80 | cosmic rays | PIRA 1000 | |
| 7D10.80 | cosmic rays | Disc 25-17 | Scintillator
paddles are placed on each side of a person and simultaneous events indicate
cosmic ray muons passing through the body. |