
New magnetic shielding for ECAL
10. 11. 2016

Electromagnetic calorimeter ECAL will operate in about 3 Gauss magnetic field. Used photomultipliers are very sensitive to magnetic field of even less than 1 Gauss and thus magnetic shielding is a needed component of the detector.
Due to sudden shortfall in supplies of originally designed magnetic shielding from partner institution, a new type had to be quickly developed and tested in house. Samples from dedicated Mu-metal sheet (80% Ni alloy) were manufactured to desired shape and passed tests in dipole magnet at cyclotron in Řež. Micro-welding machine was constructed to be able to produce the shielding in big series. Based on the successful tests of the first prototype as well as final design, mass production was started at the beginning of December 2016. From first prototype to mass production it took less than two months including order of dedicated material.
Read also
- Martin Kákona Awarded Prestigious Fulbright–Masaryk Scholarship for Research with NASA and LBNL
- The Nuclear Physics Institute of the CAS celebrated its 70th anniversary
- The NPI stand at VědaFest broadcast live on Czech Television
- Second “Day with Theoretical Nuclear Physics” attracted students from across the country
- Martin Schäfer receives Otto Wichterle Award
- NPI organized the ReMade@ARI workshop, focusing on cutting-edge materials characterization and international collaboration
- NPI Co-Organized the 5th Meeting of the EIC International Financial Committee at BNL
- Radiocarbon Dating Reveals Gaps in Elephant Protection
- We are participating in two new projects focused on cosmic rays
- Roman Garba presented his research in Austria and the United Kingdom