Magnetic shielding for large photoelectron multipliers for the OSIRIS facility of the JUNO detector
Year: 2023
Type: article
Abstract: We present technical design and characteristics of the magnetic shield developed for 20" PMTs of the low-background OSIRIS facility. A ribbon of amorphous alloy with extreme magnetic permeability was used in its design, providing excellent efficiency in screening the Earth's magnetic field with a relatively small amount of material. The mass of materials is crucial to construction of low-background facilities because of radioactive backgrounds. Using amorphous materials is cost-efficient compared to other methods for screening the Earth's magnetic field.
Source: Journal of Instrumentation
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: G1717111205, G2142869123, G6444257319
OpenAlex ID: W4364360855
