Title :
Single fiber beta detector for stereotactic biopsy and intraoperative lumpectomy of breast cancer
Author :
Atac, Muzaffer ; Nalcioglu, Orhan ; Roeck, Werner W.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
We have developed an intraoperative probe for use in early detection of breast Cancer and aiding lumpectomy. The probe consists of a small plastic scintillator, 0.8 mm diameter and 3 mm length, coupled to a single clear optical-fiber strand, and solid state photomultiplier. Due to the small size of the probe it can be placed inside of a small gauge biopsy needle. The scintillator is very efficient in detecting betas and positrons while being very inefficient to energetic gammas due to its small size and low density. High quantum efficiency, 80%, and high gain obtainable, solid state photomultiplier makes the probe very low noise device in detecting beta particles. Intrinsic resolution of the probe is expected to be around 1 millimeter. Preliminary results using beta sources and a rat bearing R320 adenocarcinoma tumor were very successful
Keywords :
beta-ray detection; biomedical equipment; probes; solid scintillation detectors; surgery; 0.8 mm; 3 mm; 80 percent; R320 adenocarcinoma tumor; breast cancer; intraoperative lumpectomy; intraoperative probe; plastic scintillator; rat; single clear optical-fiber strand; single fiber beta detector; small gauge biopsy needle; solid state photomultiplier; stereotactic biopsy; very low noise device; Biomedical optical imaging; Biopsy; Breast cancer; Cancer detection; Detectors; Optical coupling; Photomultipliers; Plastics; Probes; Solid state circuits;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591598
