RT Journal Article SR Electronic T1 Determining the Cause of Nal Crystal Breakage JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 44 OP 46 VO 8 IS 1 A1 Lin, Sylvia C. YR 1980 UL http://tech.snmjournals.org/content/8/1/44.abstract AB By examining the fracture pattern in a damaged NaI crystal, it is possible to derive, a posteri, information concerning the cause of damage. One may, for example, distinguish mechanical shock from thermal shock. Aside from being of scientific interest, such information can help to identify the party responsible for breakage—be it manufacturer, shipper, user, or a hospital’s heating maintenance department.