SATIF-16 Shielding aspects of Accelerators, Targets and Irradiation Facilities

Session

Session 8 - Radiation damage to materials

31 May 2024, 08:40

Auditorium B. Touschek (INFN-LNF)

48. Material Damages and Burn-Through Detection for FEL Beams at LCLS

Shanjie Xiao (SLAC National Accelerator Laboratory)

31/05/2024, 08:40

Radiation damage to materials

Oral presentation (preferred)

The Linac Coherent Light Source (LCLS) at SLAC is operating with a normal-conducting Linac (up to 17 GeV, 120 Hz) and a new superconducting Linac (up to 4 GeV, 1 MHz, since 2023). Free Electron Laser (FEL) beams can be generated by two adjustable gap undulators: one for soft X-rays and one for hard X-rays.

FEL beams are capable of damaging materials and the mechanism of the damages from...

61. Exploring the degradation of thin carbon-backed LiF target bombarded by 68 MeV 17O beams

Yong Hyun Kim (Pohang Accelerator Laboratory, POSTECH)

31/05/2024, 09:00

Radiation damage to materials

Oral presentation (preferred)

In our research, we aimed to uncover the causes leading to the destruction of thin, carbon-backed lithium fluoride (LiF) targets in Li-7 and O-17 fusion measurements. To achieve this, we estimated theoretically the lifetimes of carbon and LiF films, taking into account the effects of sputtering, thermal evaporation, and lattice damage, and compared them with the lifetime observed in the...

74. Evaluation of Radiation Heating and Damage for the Preliminary Design of Second Target Station Monolith Inserts

Dr Thomas Miller (Oak Ridge National Laboratory)

31/05/2024, 09:20

Radiation damage to materials

Oral presentation (preferred)

The Second Target Station (STS) Project [1] at Oak Ridge National Laboratory (ORNL) is currently working to complete preliminary design of components within the Target Monolith by the end of calendar year 2025. This includes the rotating water-cooled tungsten target, the two liquid hydrogen moderators, and many other components. After the completion of the Proton Power Upgrade (PPU) [2] of the...

70. Radiation load studies for the proton target area of a multi-TeV muon collider

Jerzy Manczak (CERN)

31/05/2024, 09:40

Radiation damage to materials

Oral presentation (preferred)

Muon production in the multi-TeV muon collider studied by the International Muon Collider Collaboration is planned to be performed with a high-power proton beam interacting with a fixed graphite target. Capturing the emerging pions and muons requires very strong magnetic fields that can only be reached with superconducting solenoids, whose properties are sensitive to long-term radiation...

77. Nuclear design of a shielded cabinet for electronics: the ITER Radial Neutron Camera case study

Fabio Moro (ENEA)

31/05/2024, 10:00

Radiation damage to materials

Oral presentation (preferred)

The Radial Neutron Camera (RNC) is a diagnostic system located in the ITER Equatorial Port #1, probing a poloidal section of the plasma through a set of fan-shaped Lines of Sight (LOS). The RNC is designed to provide spatial and time-resolved measurement of the neutron and α particles source profiles as well as the total neutron source strength, as a result of reconstruction techniques applied...

68. The Frascati Neutron Generator (FNG): capabilities and applications for radiation testing on electronic devices

Andrea Colangeli (ENEA Frascati)

31/05/2024, 10:20

Radiation damage to materials

Oral presentation (preferred)

The Frascati Neutron Generator (FNG) is a 14 MeV neutron source with a maximum strength of 1x10$^{11}$ s$^{-1}$ designed and built by ENEA in the Frascati research center, in operation since 1992. It is a linear electrostatic accelerator in which an ion beam of D+ is accelerated up to 300 keV and 1 mA of current. 14 MeV neutrons are produced via the D(T, n)$\alpha$ fusion nuclear reaction...

64. Radiation damage in a power dump

Chris Spruijtenburg (DEMCON)

Radiation damage to materials

Oral presentation (preferred)

In applications like nuclear reactors or particle accelerators, mechanical components near a source of radiation develop radiation damage. This typically means a change in tensile properties and fracture toughness, which depends on the radiation dose (commonly measured in ‘displacements per atom’, or DPA). In addition to such radiation hardening, radiation damage can also cause swelling, which...