PT - JOURNAL ARTICLE AU - Lin, Sylvia C. TI - Determining the Cause of Nal Crystal Breakage DP - 1980 Mar 01 TA - Journal of Nuclear Medicine Technology PG - 44--46 VI - 8 IP - 1 4099 - http://tech.snmjournals.org/content/8/1/44.short 4100 - http://tech.snmjournals.org/content/8/1/44.full SO - J. Nucl. Med. Technol.1980 Mar 01; 8 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.