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Good signal, little noise

Power-pulsing tests on the SiW electromagnetic calorimeter yield promising results

| 18 April 2013

Particle detectors are expected to detect a lot of signal and very little background noise so that scientists can see what went on in their detector without being distracted by irrelevant signals. The technological prototype of the silicon-tungsten (SiW) electromagnetic calorimeter passed its first test in summer 2012 with flying colours with a signal to noise […]

Bye bye DORIS

| 20 December 2012

The German lab DESY is saying good-bye to one of its accelerator workhorses, the DORIS ring. On 2 January 2013 the final beam will go round its tunnel. It has already stopped being a light source: the last positron beam reached the HASYLAB experimental huts on 22 October. Between then and now, DORIS reverted to […]

An eye on the pulse

| 6 December 2012

Building a state-of-the-art particle detector requires several steps. When you’ve decided what you want to measure, you have to decide which is the best, fastest and most reliable technology to make these measurements. When you’ve shown that your chosen technology can actually measure things to the specific requirements, you have to show that you can […]

Strip teaser

Technological prototype of scintillator-strip calorimeter in its first test beam

| 1 November 2012

A team of two scientists and four students from Shinshu University of Japan and Kyungpook National University of Korea have just packed up their cables, laptops and scintillator strips and left a test beam at DESY with many interesting results in their luggage. They tested the scintillator-strip-based electromagnetic calorimeter (ScECAL), one of the potential layers […]

Chancellor Merkel’s first cavity

| 27 September 2012

Chancellor Angela Merkel visited DESY on 19 September for a hall baptism: the experimental hall of DESY’s light source PETRA III is now officially named Max von Laue, after the discoverer of diffraction of X-rays. DESY DG Helmut Dosch presents the German chancellor (who was a physicist before she became a politician) with a miniature […]

A trip down main linac lane

| 13 September 2012

There aren’t many people in the world who can say of themselves that they have walked the whole length of the ILC’s accelerator tunnels and stood in the detector cavern looking up at the ILC detector. In fact, there’s probably only one person in the world who has done all this: Benno List. He is […]

Physics that goes bang

| 16 August 2012

Picture an auditorium full of schoolkids. When they walk in, they know nothing about superconducting radiofrequency acceleration (and who would blame them). When they walk out, they’re full of acceleration facts and have even been part of a radiofrequency wave that has accelerated an “electron” from one end of the auditorium to the other. How? […]

Quite attrack-tive

| 19 July 2012

Tracks show the paths of particles passing through the time projection chamber, the tracker prototype for the ILD detector, in a DESY test beam last week. Six brand-new readout modules of the Micromegas type – one possible module type for the final detector – were mounted to the TPC endplate and produced beautiful tracks both […]

The grand unifying 3-D chip

New platform for detector technology brings particle physics and photon science together

| 28 June 2012

Detector specialists who have been watching and helping with the progress of the vertically integrated micro-electronics – 3-D ASIC chip for short – know that they are in for something big. Something big that’s rather small, incidentally, but that’s not the main point here – follow this link if you’d like to know more about […]