A collimator for measurements of the loss cone flux of energetic electrons

James D. Sullivan; Charles W. Parker

doi:10.1117/12.892795

6 October 2011 A collimator for measurements of the loss cone flux of energetic electrons

James D. Sullivan, Charles W. Parker

Proceedings Volume 8148, Solar Physics and Space Weather Instrumentation IV; 814802 (2011) https://doi.org/10.1117/12.892795
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

An energetic electron collimator for the measurement of loss cone fluxes in the Earth's radiation belts is presented. This design addresses the problem of measuring low intensity fluxes in the presence of a large omni-directional background flux. This disc loaded collimator comprises stainless steel baffles and tungsten vanes. Electron rejection is accomplished via baffle spacing with baffles placed more closely deep within the collimator. The collimator was fabricated. Its response was validated at the Goddard Spaceflight Center's Radiation Effects Facility. The baffled design shows an angular cutoff of three orders of magnitude at the geometric cutoff angle for electron energies less than 150 keV.

Citation Download Citation

James D. Sullivan and Charles W. Parker "A collimator for measurements of the loss cone flux of energetic electrons", Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 814802 (6 October 2011); https://doi.org/10.1117/12.892795

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available