Status of COLDDIAG: A Cold Vacuum Chamber for Diagnostics

TL;DR

COLDDIAG is a specialized cold vacuum chamber designed to diagnose and measure beam heat load mechanisms in superconducting insertion devices, utilizing various sensors and analyzers to improve understanding and optimize performance.

Contribution

This paper presents the technical design and planned implementation of COLDDIAG, a versatile diagnostic chamber for studying beam heat load in synchrotron light sources.

Findings

Design of a removable inner vacuum chamber for different geometries

Implementation of multiple diagnostics including analyzers, sensors, and spectrometers

Preparation for initial installation and measurements at Diamond synchrotron

Abstract

One of the still open issues for the development of superconducting insertion devices is the understanding of the beam heat load. With the aim of measuring the beam heat load to a cold bore and the hope to gain a deeper understanding in the beam heat load mechanisms, a cold vacuum chamber for diagnostics is under construction. The following diagnostics will be implemented: i) retarding field analyzers to measure the electron energy and flux, ii) temperature sensors to measure the total heat load, iii) pressure gauges, iv) and mass spectrometers to measure the gas content. The inner vacuum chamber will be removable in order to test different geometries and materials. This will allow the installation of the cryostat in different synchrotron light sources. COLDDIAG will be built to fit in a short straight section at ANKA. A first installation at the synchrotron light source Diamond is foreseen in June 2011. Here we describe the technical design report of this device and the planned measurements with beam.