"chad"--a possible origin

[GSCole]

Was chaff also used in WWII, as either square or rectangular shapes in
foil, toward disrupting certain radio communication efforts?  Possible
relationship between the words 'chaff' and 'chad', other than the first
three letters of each word?

Not a very good photo of chaff, but a rectangular object is in the
photo:
http://www.denix.osd.mil/denix/Public/Library/Rfchaff/Images/images.html

George S. Cole   gscole at ark.ship.edu
Shippensburg University