IBIC2026 - 15th International Beam Instrumentation Conference

Commissioning of a Heterodyne Near Field Speckles Beamline for Beam Size Measurements at ALBA

MOP001

31 Aug 2026, 16:40

2h

Ballroom C (Whistler Conference Centre)

Poster Presentation MC04: Transverse Profile and Emittance Monitors Monday Poster Session 1

Speaker

Ubaldo Iriso (ALBA Synchrotron (Spain))

Description

Electron beam size measurements using the Heterodyne Near Field Speckles (HNFS) technique were successfully tested at the ALBA beamline "NCD-SWEET". Inside the FCC collaboration, a dedicated setup was installed at ALBA Front End 21 (FE21), including a high energy (~23keV) and large bandwidth (~1.5%) multilayer monochromator to optimize the speckle pattern.
An x-ray pinhole camera is installed at the ALBA FE21, which is currently in operation using the synchrotron light from a bending magnet. Both measurement techniques (pinhole and HNFS) can operate alternately to measure the electron beam size from the same source point, allowing for direct comparison between the two methods.
This paper presents the steps taken to install the dedicated HNFS instrumentation, along with initial measurements.