학술논문

Developing a diagnostic for energetic laser-Compton produced photon beams
Document Type
article
Source
Subject
Particle tracking detectors
Pixelated detectors
Laser-Thomson scattering
Laser-plasma accelerators
Compton spectrometer
MeV gamma-ray imaging
Charge-Coupled Device
Bioengineering
Nuclear & Particles Physics
Astronomical and Space Sciences
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Other Physical Sciences
Language
Abstract
This paper describes the design and simulation of a radiation detector system for diagnostic measurements of photon beams produced by Thomson or Compton Scattering. The photon beam is Compton scattered in a thin passive converter, and the resulting electrons are analyzed using a charge-coupled device-based tracker and classification algorithms. The flux of the scattered electrons is much lower than that of the photon beam and is additionally dispersed. This dispersal enables measurements while avoiding pileup, which is important in order to provide diagnostic information from intense 'shot’ based pulsed systems, such as those being built to leverage laser wakefield accelerators. Simulations indicate that the designed system is capable of resolving beam parameters from a single shot. The fidelity to which various beam parameters can be resolved is presented as are methods that could result in further improvement to diagnostic resolution.