Mostrar 3968 resultados

Descrição arquivística
Previsualizar a impressão Hierarquia
Visualização em ficha Visualização em tabela
1323 resultados com objetos digitais Mostrar resultados com objetos digitais
CERN first bubble chamber
CERN-OBJ-DE-032 · Item · 1957
Parte de Heritage Collection

The 10cm diameter chamber made by Charles Peyrou was the first liquid hydrogen bubble chamber built at CERN.
PS wire chamber
PS wire chamber
CERN-OBJ-DE-037 · Item · 1970
Parte de Heritage Collection

A wire chamber used at CERN's Proton Synchrotron accelerator in the 1970s. Multi-wire detectors contain layers of positively and negatively charged wires enclosed in a chamber full of gas. A charged particle passing through the chamber knocks negatively charged electrons out of atoms in the gas, leaving behind positive ions. The electrons are pulled towards the positively charged wires. They collide with other atoms on the way, producing an avalanche of electrons and ions. The movement of these electrons and ions induces an electric pulse in the wires which is collected by fast electronics. The size of the pulse is proportional to the energy loss of the original particle.

 Sem título
experimental instrument for wire chambers
experimental instrument for wire chambers
CERN-OBJ-DE-042 · Item
Parte de Heritage Collection

Instrument used to test the wires of small chambers before closing them. The chambers were 50cm long, 0.45cm wide and 0.06cm thick. They were meant to be used in a calorimeter for a PS experiment.

 Sem título
wire chamber
CERN-OBJ-DE-048 · Item
Parte de Heritage Collection

Multi-wire detectors contain layers of positively and negatively charged wires enclosed in a chamber full of gas. A charged particle passing through the chamber knocks negatively charged electrons out of atoms in the gas, leaving behind positive ions. The electrons are pulled towards the positively charged wires. They collide with other atoms on the way, producing an avalanche of electrons and ions. The movement of these electrons and ions induces an electric pulse in the wires which is collected by fast electronics. The size of the pulse is proportional to the energy loss of the original particle.
wire chamber
CERN-OBJ-DE-051 · Item · 1985
Parte de Heritage Collection

Multi-wire detectors contain layers of positively and negatively charged wires enclosed in a chamber full of gas. A charged particle passing through the chamber knocks negatively charged electrons out of atoms in the gas, leaving behind positive ions. The electrons are pulled towards the positively charged wires. They collide with other atoms on the way, producing an avalanche of electrons and ions. The movement of these electrons and ions induces an electric pulse in the wires which is collected by fast electronics. The size of the pulse is proportional to the energy loss of the original particle.
OPAL Silicon Tungsten Luminometer
CERN-OBJ-DE-059 · Item
Parte de Heritage Collection

OPAL was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. The Silicon Tungsten Luminometer was part of OPAL's calorimeter which was used to measure the energy of particles. Most particles end their journey in calorimeters. These detectors measure the energy deposited when particles are slowed down and stopped.
OPAL Example Segment of Silicon Tungsten Luminometer
OPAL Example Segment of Silicon Tungsten Luminometer
CERN-OBJ-DE-060 · Item
Parte de Heritage Collection

OPAL was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. The Silicon Tungsten Luminometer was part of OPAL's calorimeter which was used to measure the energy of particles. Most particles end their journey in calorimeters. These detectors measure the energy deposited when particles are slowed down and stopped.
Obelix Wire Chamber
CERN-OBJ-DE-071 · Item · 1986
Parte de Heritage Collection

Two wire chambers made originally for the R807 Experiment at CERN's Intersecting Storage Rings. In 1986 they were used for the PS 201 experiment (Obelix Experiment) at LEAR, the Low Energy Antiproton Ring. The group of researchers from Turin, using the chambers at that time, changed the acquisition system using for the first time 8 bit (10 bit non linear) analog to digital conversion for incoming signals from the chambers. The acquisition system was controlled by 54 CPU and 80 digital signal processors. The power required for all the electronics was 40 kW. For the period, this system was one of the most powerful on-line apparatus in the world. The Obelix Experiment was closed in 1996. To find more about how a wire chamber works, see the description for object CERN-OBJ-DE-038.
DUMAND detector
DUMAND detector
CERN-OBJ-DE-076 · Item
Parte de Heritage Collection

This object is one of the 256 other detectors of the DUMAND (Deep Underwater Muon And Neutrino Detection) experiment. The goal of the experiment was the construction of the first deep ocean high energy neutrino detector, to be placed at 4800 m depth in the Pacific Ocean off Keahole Point on the Big Island of Hawaii. A few years ago, a European conference with Cosmic experiments was organized at CERN as they were projects like DUMAND in Hawaii. Along with the conference, a temporary exhibition was organised as well. It was a collaboration of institutions from Germany, Japan, Switzerland and the U.S.A. CERN had borrowed equipment and objects from different institutes around the world, including this detector of the DUMAND experiment. Most of the equipment were sent back to the institutes, however this detector sphere was offered to a CERN member of the personnel.

 Sem título