| Title: |
Radiation Load Studies for the FCC-ee Positron Source with a Superconducting Matching Device |
| Authors: |
Humann, Barbara; Auchmann, Bernhard; Chaikovska, Iryna; Kosse, Jaap; Latina, Andrea; Lechner, Anton; Ogur, Salim; Zhao, Yongke |
| Contributors: |
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
| Source: |
JACoW ; 13th International Particle Accelerator Conference ; https://hal.science/hal-03766072 ; 13th International Particle Accelerator Conference, Jun 2022, Muangthong Thani, Thailand. pp.2879-2882, ⟨10.18429/JACoW-IPAC2022-THPOTK048⟩ |
| Publisher Information: |
CCSD |
| Publication Year: |
2022 |
| Subject Terms: |
target; positron; collider; shielding; electron; positron: particle source; solenoid: superconductivity; positron: capture; positron: yield; radiation: damage; FCC-ee; tungsten; rhenium; superconductivity: temperature: high; [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph] |
| Subject Geographic: |
Muangthong Thani; Thailand |
| Description: |
International audience ; For an electron-positron collider like FCC-ee, the production of positrons plays a crucial role. One of the design options considered for the FCC-ee positron source employs a superconducting solenoid made of HTS coils as an adiabatic matching device. The solenoid, which is placed around the production target, is needed to capture positrons before they can be accelerated in a linear accelerator. A superconducting solenoid yields a higher peak field than a conventional-normal conducting magnetic flux concentrator, therefore increasing the achievable positron yield. In order to achieve an acceptable positron production, the considered target is made of tungsten-rhenium, which gives also a significant flux of un-wanted secondary particles, that in turn could generate a too large radiation load on the superconducting coils. In this study, we assess the feasibility of such a positron source by studying the heat load and long-term radiation damage in the superconducting matching device and surrounding structures. Results are presented for different geometric configurations of the superconducting matching device. |
| Document Type: |
conference object |
| Language: |
English |
| Relation: |
INSPIRE: 2137645 |
| DOI: |
10.18429/JACoW-IPAC2022-THPOTK048 |
| Availability: |
https://hal.science/hal-03766072; https://doi.org/10.18429/JACoW-IPAC2022-THPOTK048 |
| Accession Number: |
edsbas.9D671563 |
| Database: |
BASE |