Single fiber beta detector for stereotactic biopsy and intraoperative lumpectomy of breast cancer

M. Atac, O. Nalcioglu, W.W. Roeck
1996 IEEE Nuclear Science Symposium. Conference Record  
We have developed an irmaoperative probe for use in early detection of breast Cancer and aiding lumpectomy. The probe consists of a small plastic scintillator, 0.8mm diameter and 3mm length, coupled to a single clear opticalfiber 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 efftcient in detecting betas and positrons while being very inefficient to energetic gammas due to its small
more » ... e 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.
doi:10.1109/nssmic.1996.591598 fatcat:2pgylz6bxnhnnbsh4eocokfajy