Tag: News
-
Test of ACCURATE 2 at CERN Calibration Lab
The main goal of this first experiment was to functionally test the ACCURATE2 system with the full measurement chain. Two IG05-A20 ionization chambers were placed next to each other, symmetrically facing the source. The first one was connected to the CROME bulk system to serve as a reference and the second was connected to the…
-
RP DSO tests are finished at EHN1
DSO tests for RP at EHN1 have been performed with success last Friday. Frederic Aberle who leaded this important milestone for RP said : “The DSO tests for the North Experimental Areas is the occasion to perform the ultimate test on the new CROME radiation monitoring system that was installed during LS2. The aim of…
-
Test of ACCURATE 2 at CERN Calibration Lab
The main goal of this first experiment was to functionally test the ACCURATE2 system with the full measurement chain. Two IG05-A20 ionization chambers were placed next to each other, symmetrically facing the source. The first one was connected to the CROME bulk system to serve as a reference and the second was connected to the…
-
Acceptance tests are on going at EHN2
“Hall 888 (EHN2) sits right at the end of the Prévessin site and houses the COMPASS experiment. Beyond the Long Shut down 2, the North Area is looking to the future with the Physics Beyond Colliders programme: several experiment projects, such as the BDF, propose to use the SPS lines. Implementation studies are being finalised…
-
Installation of CROME at the North Experimental Hall 1 (EHN1) is on-going
Building 887 also called EHN1, for North Experimental Hall 1is 55 metres wide and 330 metres long and is therefore CERN’s biggest. But the North Area is vaster still: it also includes the Neutrino Platform, housed in a recent extension of Building 887, several other halls that are home to the “NA” (North Area) experiments,…
-
Toward CROME next front-end ASIC
The front-end electronics of Ionization chambers for radiation protection requires challenging sensitivity in the femtoampere range (some 6000e- per second) and a wide dynamic range going to the microampere. This new mixed analog/digital ASIC was designed in 130nm technology and is currently under tests and characterisation. A technology demonstrator chip in GLOBAL FOUNDRIES 22 nm…
-
The first CROMOBILE Prototype has been delivered to RP
The first CROMOBILE (CROME Mobile) prototype has been delivered to CERN Radiation Protection. Four mobile measurement devices are currently being produced. These devices will be heavily used for radiation survey measurements at the accelerator installations. The current RP mobile measurement system has been in service since 2007, with some upgrades over time to the power…
-
CROME EMC qualification (2020)
2020 was for CROME the year of : mass production, first ARCON replacements, dose calibrations and first installations commissioning. However, 2020 was also the year of CROME system EMC qualification for : as defined by both our internal requirements and the IEC standards (IEC61000-4 and IEC61326–1)
-
CROME calibrations are still ongoing
With the beginning of 2021, we have started the last semester of ARCON replacement project. The last CROME installations for the LS2 are in the north area. The calibrations for this last milestones are ongoing :