Same as Lab 8, plus a fertilizer sample!

NaI Scintillation Detector in Cradle, Front View
Fragile, handle with care! Point this end at a radioactive source.

NaI Scintillation Detector in Cradle, Back View
Note that the various electrical connections are labeled.

Spectech UCS-30, Front ViewThis box performs several different functions. It’s a power supply, an amplifier, and a multi-channel analyzer.

Spectech UCS-30, Back ViewNote that the various electrical connections are labeled.

Co-60 in Holder

Adjust the holder to support our radioactive source in front of the detector.

USB Cable

This cable connects the UCS-30 to a desktop computer, allowing us to control the UCS-30 and get data from its multi-channel analyzer.

BNC CableThe BNC cable carries the detector output to the UCS-30 input.

High Voltage CableThis cable supplies high voltage from the UCS-30 to the high voltage input on the detector. If unlabeled, it can be distinguished from a regular BNC cable by the shape of the connectors.

Multi-Pin Pre-Amp CableThis cable provides power to the detector pre-amp from the UCS-30.

FertilizerFind the mass of the potassium in the fertilizer sample from the gamma rays that it emits.

Background Data Collection and Analysis Summary Questions