PT  - JOURNAL ARTICLE
AU  - Beyea, Don
AU  - Boudreau, Debbie
TI  - A Method to Assess Collimator Integrity
DP  - 1995 Sep 01
TA  - Journal of Nuclear Medicine Technology
PG  - 173--175
VI  - 23
IP  - 3
4099  - http://tech.snmjournals.org/content/23/3/173.short
4100  - http://tech.snmjournals.org/content/23/3/173.full
SO  - J. Nucl. Med. Technol.1995 Sep 01; 23
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.