Measurement of charge state distributions using a scintillation screen

Absolute cross sections measured using electromagnetic devices to separate and detect heavy recoiling ions need to be corrected for charge state fractions. Accurate prediction of charge state distributions using theoretical models is not always a possibility, especially in energy and mass regions wh...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2023-11, Vol.1056 (1), p.168661, Article 168661
Main Authors: Marshall, C., Meisel, Z., Montes, F., Wagner, L., Hermansen, K., Garg, R., Chipps, K.A., Tsintari, P., Dimitrakopoulos, N., Berg, G.P.A., Brune, C., Couder, M., Greife, U., Schatz, H., Smith, M.S.
Format: Article
Language:English
Subjects:
Bayesian analysis
Charge state distribution
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Recoil separators
Scintillation screen
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Absolute cross sections measured using electromagnetic devices to separate and detect heavy recoiling ions need to be corrected for charge state fractions. Accurate prediction of charge state distributions using theoretical models is not always a possibility, especially in energy and mass regions where data is sparse. As such, it is often necessary to measure charge state fractions directly. In this paper we present a novel method of using a scintillation screen along with a CMOS camera to image the charge dispersed beam after a set of magnetic dipoles. A measurement of the charge state distribution for 88Sr passing through a natural carbon foil is performed. Using a Bayesian model to extract statistically meaningful uncertainties from these images, we find agreement between the new method and a more traditional method using Faraday cups. Future work is need to better understand systematic uncertainties. Our technique offers a viable method to measure charge state distributions.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2023.168661