RT Journal Article
SR Electronic
T1 A Method to Assess Collimator Integrity
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 173
OP 175
VO 23
IS 3
A1 Beyea, Don
A1 Boudreau, Debbie
YR 1995
UL http://tech.snmjournals.org/content/23/3/173.abstract
AB Objective: In this paper we evaluate a new method for assessing the structural integrity of parallel-hole collimators. Methods: Images of various collimators were acquired using a dual-energy, x-ray bone densitometry unit. Results: X-ray images of collimators acquired by this method were of high quality and revealed delaminations, hole misalignments, denting and other damage or structural collimator deformities. Conclusion: The bone densitometry unit x-ray beam is parallel, while the beam from a conventional x-ray unit is divergent. X-ray imaging of collimators with a parallel-beam bone densitometry unit is a convenient, inexpensive and technically superior means of assessing collimator integrity.