Counting Laboratories with high volume sampling require automated processes to maximize sample throughput while minimizing labor overhead. Depending on the specific needs of the application, a wide variety of sample types and counting geometries may be encountered. Reducing detector idle time between numerous short acquisition measurements or performing unattended measurements for longer acquisitions overnight is achieved with ORTEC-compatible Automatic Sample Changers provided directly from ORTEC or through other manufacturers such as Antech, Changer Labs, Gamma Products, and Gemini. The particular sample changer of choice will be dependent on the sample geometries, available space, and the system function and support options. Contact your ORTEC Sales representative or the appropriate sample changer vendor for further information.