Lead for neutrino detector shield
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Lead for neutrino detector shield
Lead for neutrino detector shield. Technician Carlo Bucci of the Gran Sasso Laboratory holding a bar of ancient Roman lead weighing more than 30 kilograms. The lead will be made into a shield for apparatus used for detecting dark matter. Old lead is preferred because it has lower radioactivity than new lead. Dark matter is as yet undetected matter postulated to exist in the universe. Neutrinos, produced from stars and supernovae explosions, may make up some of the dark matter. Gran Sasso is in Abruzzo, Italy. The laboratories are located 1400 metres underground. The rock overlay shields the laboratories from cosmic rays
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Media ID 6447499
© VOLKER STEGER/SCIENCE PHOTO LIBRARY
Abruzzo National Park Astrophysics Clean Cosmology Dark Matter Elementary Particles Face Mask Flux Gran Sasso Laboratories Italian Italy Measurement Neutrino Detector Observatory Protected Protective Clothing Radioactivity Researcher Sensor Shielded Star Stars Sterile Supernova Technician Under Ground Carlo
EDITORS COMMENTS
In this photo print, Technician Carlo Bucci of the Gran Sasso Laboratory stands proudly, holding a massive bar of ancient Roman lead weighing over 30 kilograms. This remarkable piece of history will soon be transformed into a shield for an apparatus used to detect dark matter. The choice to use old lead is deliberate, as it possesses lower levels of radioactivity compared to its modern counterpart. The Gran Sasso Laboratory, nestled in the picturesque Abruzzo region of Italy, is located a staggering 1400 meters underground. This strategic positioning shields the laboratories from cosmic rays that could interfere with their delicate research and measurements. Dark matter remains an enigmatic entity yet to be directly observed but theorized to exist within our vast universe. Neutrinos, elementary particles produced by stars and supernovae explosions, are believed to potentially contribute to this mysterious dark matter composition. As we gaze at this image, we are reminded of the meticulous efforts undertaken by researchers like Carlo Bucci in their pursuit of understanding the cosmos. Clad in protective clothing and wearing face masks for sterility purposes, these dedicated scientists work diligently within this protected observatory environment. This photograph serves as a testament not only to scientific exploration but also highlights the importance of preserving historical materials for cutting-edge discoveries. Science Photo Library has beautifully captured this momentous occasion at Gran Sasso Laboratories without mentioning any commercial use or affiliation with companies – allowing us all to appreciate the wonders unfolding beneath our feet.
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