Measurement of Photoneutrons Trace Density Resulting from Photoneutron Contamination in Treating Two Breast Cancer using a VARIAN IX Linear Accelerator Operating at 6MV and 18 MV. Latakia University (formerly Tishreen) Journal for Research and Scientific Studies - Basic Sciences Series, v. 48, n. 4, p. 151–168, 28 Sep.2026.