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@@ -11,17 +11,21 @@ You also need jumper wires to connect the board on the **Flipper Zero**.
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**Note 2 :** **J305** geiger tube is only sensible to **beta** and **gamma** rays. **Alpha** rays cannot be detected.
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-Usable radioactive sources :
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+**Usable** radioactive sources :
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- natural uranium (alpha, beta, gamma)
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- natural thorium (alpha, beta, gamma)
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- radium-226 (alpha, beta, gamma)
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-- cobalt-60 (beta, gamma)
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+- cobalt-60 (beta & gamma)
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-**Unusable** radioactive sources :
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-- americium-241 (alpha)
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-- polonium-210 (alpha)
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+**Not really usable** radioactive sources :
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+- americium-241 (alpha & low gamma, some strong beta/gamma rays are emitted during radioactive cascade)
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+- high purity metallic uranium/thorium (same as am241)
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+
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+
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+**Totaly unusable** radioactive sources :
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+- polonium-210 (pure alpha)
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- tritium (very low beta)
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-- high purity metallic uranium/thorium (alpha)
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+
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The geiger counter board can be powered with +5V power pin of the **Flipper Zero**. This pin will automatically be enabled when the program is launched.
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@@ -56,7 +60,7 @@ If you don't want to build this application, just simply copy **flipper_geiger.f
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## Use cases
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-Ambient radioactivity (descendants of radon gas are detected) :
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+Ambient radioactivity (descendants of radon gas are detected, not radon itself) :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper2.png" width=25% height=25%> <img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper8.png" width=25% height=25%> <img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper9.png" width=25% height=25%>
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@@ -78,6 +82,14 @@ All previous measures in a row (the scale of the graph is automatically adjusted
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper6.png" width=25% height=25%>
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+Measure of uranium orange pottery :
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+
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+<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper10.png" width=25% height=25%>
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+
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+Measure of americium 241 button from a smoke detector :
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+
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+<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper11.png" width=25% height=25%>
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+
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**A4** GPIO on **A7** GPIO :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper7.png" width=25% height=25%>
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nmrr
