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Make-it guide: standard test source for checking a GM counting system
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Simple instructions on how to make a usb counter module for displaying the radioactive count from a GM tube onto a convenient projector screen.
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Several schools have told us that when detecting alpha emissions with a GM tube, their americium‐241 source appeared to have become less radioactive than when it was new1. The source worked as exp.. more
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Practical work make it count (Editorial) Asbestos in gauzes Benefits of CLEAPSS membership Booking CLEAPSS courses Buying from the CLEAPSS shopHead and brain dissections Student safety sheets 2018 edi.. more
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This explains how to estimate the radioactivity of instruments which have dials painted with radium paint. Such dials are now getting very old and the paint will be deteriorating and possibly flaking .. more
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Describes in detail the routine tests of radioactive sources and the equipment needed to carry them out. Includes equipment, available to schools, but which is unsuitable for such tests.
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Participation in the CLEAPSS/ University of Liverpool investigation of school americium sources
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A straightforward practical which can be undertaken by post-16 students as well as done as a demonstration.
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Describes in detail four different practical activities to measure half-life in a school laboratory, and compares the advantages and disadvantages of each.
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Detailed guidance and instructions for a way to measure the rate of photosynthesis in aquatic plants by measuring the number of oxygen bubble produced and their volume. The practical uses simple equip.. more
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Showing results 1 to 10 of 93
1 234