−Table of Contents
Cf-252 Runs with SiPMs, Large Scintillator Slab, Neutron Capture Efficiency
Run dates:
20170516
20170522
20170604
Experimental Set Up
The setup described here was used to collect data. Three CPTA 151 SiPMs were attached using optical grease to WLS fibers in large scintillator slabs.
Results and Analysis
Coincidence Trigger
First, the TB4 board was triggered using a coincidence between Ch. 0, Ch. 1, and Ch. 2 with a 1.5 photoelectron threshold (, , and ADC respectively).
| Figure 1: |
|---|
| cf252_draw4_time_rescaled_area.pdf |
Singe Channel Trigger
Runs were also performed triggering on an individual channel. Two different coincidence widths were
Conclusions
It was determined that no useful information can be gathered for a single channel trigger with a threshold less than 2.5 or 3