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--- textbook:nrctextbook:chapter1 [2025-08-08 15:46]
Merja Herzig
+++ textbook:nrctextbook:chapter1 [2025-08-28 12:44] (current)
Merja Herzig
@@ Line 82: / Line 82: @@
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 {{ :textbook:nrctextbook:3522995777_70c3e6666e_o.jpg?400|}}
-**Ernest O. Lawrence at the controls of the 37-inch cyclotron circa 1938**
+The first particle [[textbook:nrctextbook:chapter16|accelerators]] were developed during the 1930s and in 1932 the first accelerated particle(proton)-induced [[textbook:nrctextbook:chapter15|nuclear reaction]], $^1\text{H} + ^7\text{Li} \rightarrow 2 \, ^4\text{He}$, was accomplished. Also in 1932, the husband and wife team, Frederic and Irene Joliot-Curie, accomplished creating the first [[textbook:nrctextbook:chapter4#artificial_radionuclides|artificial radioactive nucleus]] by bombarding boron, aluminum, and magnesium with [[textbook:nrctextbook:chapter5#alpha_particle|alpha particles]]. Bombarding aluminum produced <sup>30</sup>P, which [[textbook:nrctextbook:chapter5|decayed]] by [[textbook:nrctextbook:chapter5#positron_decay|positron emission]] with a 10 minute [[textbook:nrctextbook:chapter6#half_life|half-life]]. [[textbook:nrctextbook:chapter5#positron|Positrons]], particles with the same mass as an [[textbook:nrctextbook:chapter2#electron|electron]] but an opposite charge, were identified two years earlier.
+**Ernest O. Lawrence at the controls of
+the 37-inch cyclotron circa 1938**
 ([[https://www.flickr.com/photos/berkeleylab/3522995777|photos Berkeley Lab]])
-The first particle [[textbook:nrctextbook:chapter16|accelerators]] were developed during the 1930s and in 1932 the first accelerated particle(proton)-induced [[textbook:nrctextbook:chapter15|nuclear reaction]], $^1\text{H} + ^7\text{Li} \rightarrow 2 \, ^4\text{He}$, was accomplished. Also in 1932, the husband and wife team, Frederic and Irene Joliot-Curie, accomplished creating the first [[textbook:nrctextbook:chapter4#artificial_radionuclides|artificial radioactive nucleus]] by bombarding boron, aluminum, and magnesium with [[textbook:nrctextbook:chapter5#alpha_particle|alpha particles]]. Bombarding aluminum produced <sup>30</sup>P, which [[textbook:nrctextbook:chapter5|decayed]] by [[textbook:nrctextbook:chapter5#positron_decay|positron emission]] with a 10 minute [[textbook:nrctextbook:chapter6#half_life|half-life]]. [[textbook:nrctextbook:chapter5#positron|Positrons]], particles with the same mass as an [[textbook:nrctextbook:chapter2#electron|electron]] but an opposite charge, were identified two years earlier.
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@@ Line 164: / Line 168: @@
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+{{:textbook:nrctextbook:wilson_cloud_chamber_at_aec_s_brookhaven_national_laboratory.jpg?400 |}}
+Wilson Cloud Chamber at AEC's Brookhaven National Laboratory circa 1955 ([[https://upload.wikimedia.org/wikipedia/commons/0/0e/Wilson_Cloud_Chamber_at_AEC%27s_Brookhaven_National_Laboratory.jpg|ENERGY.GOV, Public domain, Wikimedia Commons]])
 ###

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