TY - RPRT TI - A novel method for producing x-ray test objects and phantoms. AU - C Theodorakou AU - J A Horrocks AU - N W Marshall AU - R D Speller PY - 2004 DO - 10.1088/0031-9155/49/8/004 UR - https://pubmed.ncbi.nlm.nih.gov/15152683/ ID - 15152683 ER -