# The 21st International Workshop on Neutrinos from Accelerators (NUFACT2019)

Aug 25 – 31, 2019
The Grand Hotel Daegu
Asia/Seoul timezone

## Experimental Muon Source (EMuS) Target Station Shielding Design for “Baby Scheme”

Aug 26, 2019, 7:00 PM
2h 30m
Dynasty Hall (2F) (The Grand Hotel Daegu)

### Dynasty Hall (2F)

#### The Grand Hotel Daegu

Board: 42
Poster Presentation

### Speaker

Dr Nitin Yadav (Institute of High Energy Physics )

### Description

The Experimental Muon Source (EMuS) project at China Spallation Neutron Source (CSNS) in Dongguan aims at building a competitive muon source providing both a low-energy surface muon beam and a high energy decay muon beam for muon science. Highly polarized positive surface muons are used in muon spin rotation ($\mu$SR) spectrometers in order to study material properties in condensed matter physics, chemistry and biology, especially in studying magnetic systems; higher momentum muons can be employed in non-invasive analysis of materials, such as bulk-sensitive elemental analysis with negative muons, or muon radiography techniques. EMuS uses up to 25 kW proton beam hitting on a graphite target to produce the muon beam with a conventional magnet side collection target station and an advanced forward superconducting solenoid capture target station, so called as "Baby" scheme and "Baseline" scheme respectively. Extremely high radiation produced from the target has to be shielded in order to safeguard the magnet system and the surrounding environment for proper functioning and operation. Therefore, a proper shielding of magnet and environment becomes a key factor of its successful design. We present here the preliminary design and application of hybrid nature of shielding for the EMuS experiment for "Baby" scheme.

Working Group WG3 : Accelerator Physics

### Primary authors

Dr Nitin Yadav (Institute of High Energy Physics ) Prof. Ye Yuan (Institute of High Energy Physics) Prof. Guang Zhao (Institute of High Energy Physics) Dr Nikolaos Vassilopoulos, (Institute of High Energy Physics)