= Luis Walter Alvarez
{c}
{tag=Physicist}
{title2=1911–1988}
{wiki}
= Luis Alvarez
{c}
{synonym}
= Luis W. Alvarez
{c}
{synonym}
= L. W. Alvarez
{c}
{synonym}
<Luis Walter Alvarez> developed liquid-<hydrogen> <bubble chambers> for <particle (physics)>. A particle crossing a superheated <liquid> leaves <ionization> along which bubbles can grow, making its trajectory photographable. Using <hydrogen> supplies a comparatively simple proton target as well as the track-recording medium. His 1956 report describes the development that established observable tracks in liquid <hydrogen>, connecting detector engineering with measurements of particle interactions.<Liquid Hydrogen Bubble Chambers by Luis Walter Alvarez>[1956 report, early liquid-hydrogen chamber development and observation of tracks]{ref}
A <physicist>.<Nomination archive identity record of Luis Walter Alvarez>[Independent professional profile]{ref}https://www.nobelprize.org/prizes/physics/1968/alvarez/biographical/[Independent professional profile]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/LWA%20Picture%20Final.jpg?width=250]
{title=Portrait of <Luis Walter Alvarez>}
{description=Donald Cooksey / Lawrence Berkeley National Laboratory, as credited on the File; Dutch National Archives, ANEFO collection. Public domain in the United States, as Commons records publication there in 1931–1977 without a copyright notice. https://commons.wikimedia.org/wiki/File:LWA_Picture_Final.jpg[Source usage terms], via Wikimedia Commons.}
{source=https://commons.wikimedia.org/wiki/File:LWA_Picture_Final.jpg}
{width=250}
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