found: McCracken, D. Photon and electron energy deposition in CANDU reactor fuel channels: a study using SANDYL and EGS4, 1994.
found: AECL website(CANDU reactors use heavy water and do not require enriched (concentrated U-235) fuel)
found: Canadian Nuclear FAQs online by Dr. Jeremy Whitlock(CANDU (a registered trademark) stands for "Canada Deuterium Uranium", a pressurized heavy-water, natural uranium power reactor designed in the 1960s by AECL)
found: LC database, Nov. 27, 1997(Advances in fuel channel technology for CANDU reactors = Progres en technique des canaux de combustible de reacteurs CANDU, 1994; Characteristics of used CANDU fuel relevent to the Canadian Nuclear Fuel Waste Management Program, 1993; CANDU, an analysis of the Canadian nuclear program, 1977)
found: NLC database, Nov. 27, 1997(Canada. Atomic Energy Control Board. Requirements for containment systems for CANDU nuclear power plants : proposed regulatory guide, issued for comment, June 1980; Slater, J. Advanced future fuel cycles for CANDU reactors, 1981; Miller, A. Heavy water : a distinctive and essential component of CANDU, 1994; NLC SH CANDU Reactor)