Effects of a traveling magnetic field on vertical gradient freeze growth of cadmium zinc telluride

Andrew Yeckel; Jeffrey J. Derby

doi:10.1117/12.896543

27 September 2011 Effects of a traveling magnetic field on vertical gradient freeze growth of cadmium zinc telluride

Andrew Yeckel, Jeffrey J. Derby

Proceedings Volume 8142, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIII; 814214 (2011) https://doi.org/10.1117/12.896543
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

The effects of a traveling magnetic field (TMF) on vertical gradient freeze (VGF) growth of cadmium zinc telluride (CZT) are studied using a coupled model of magnetic induction, fluid dynamics, and heat transfer. Simulations are performed to determine the influences of current and frequency on melt flow and growth interface shape. A downward traveling electromagnetic wave drives flow downward at the wall, which tends to flatten the interface, whereas an upward traveling wave has the opposite effect. TMF makes a significant impact on interface shape in the absence of thermal buoyancy, but is ineffectual under realistic conditions in a 4 inch diameter ampoule, for which buoyancy dominates Lorentz force throughout the melt.

Citation Download Citation

Andrew Yeckel and Jeffrey J. Derby "Effects of a traveling magnetic field on vertical gradient freeze growth of cadmium zinc telluride", Proc. SPIE 8142, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIII, 814214 (27 September 2011); https://doi.org/10.1117/12.896543

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