The $D$ value depends approximately linearly on the dose rate's logarithm for dose rates between 2.2 Gy/hr and 70 Gy/hr for all materials. The $D$ values are similar for primary and secondary doping concentrations of 1 and 2 times, and anti-oxidant concentrations of 0, 1, and 2 times the default manufacturer's value. The change in light output is quantified using the exponential dose constant $D$. The light output is measured, before and after irradiation, using an alpha source and a photomultiplier tube, and the light transmission by a spectrophotometer. This talk will present the effects of ionizing radiation on the signal produced by plastic scintillator rods for various substrate materials, dopant concentrations, fluors, anti-oxidant concentrations, scintillator thicknesses, and dose rates. However, response to radiation damage is a critical factor in detector design. Sampling calorimeters for high energy physics experiments often use plastic scintillator as the active medium due to its low cost and ease of use. The analysis demonstrates the unique utilization of detailed event topologies and the development of software compensation tools. Results of comparisons with the Monte Carlo simulations are also discussed. Here we report on the results from the analysis of pion and positron events, including the intricate calibration procedure. In addition to conventional calorimetric measurements, the DHCAL offers detailed measurements of event shapes, rigorous tests of simulation models and various tools for improved performance due to its very high spatial granularity. The DHCAL was tested with steel and tungsten absorber structures, as well as with no absorber structure, at the Fermilab and CERN test beam facilities over several years. In order to obtain a unique dataset of electromagnetic and hadronic interactions with unprecedented spatial resolution, the DHCAL went through a broad test beam program. A single layer of the DHCAL measures roughly 1 x 1 m2 and consists of 96 x 96 pads. The DHCAL uses Resistive Plate Chambers (RPCs) as active media and is read out with 1 x 1 cm2 pads and digital (1 - bit) resolution. The large DHCAL prototype was built in 2008-2010, following the successful completion of the test beam program of a small size prototype. ![]() In this context the CALICE collaboration developed the Digital Hadron Calorimeter (DHCAL) which emphasizes granularity over single particle energy resolution. The application of PFAs has been shown to achieve energy resolutions of 3 – 4% for hadronic jets produced in a future lepton collider. Particle Flow Algorithms (PFAs) attempt to measure each particle in a hadronic jet individually, using the component or detector subsystem providing the best energy/momentum resolution. DDMWorks Coolant Silicone kit for Sonic 1.4L. ![]() DDMWorks Charge tube Silicone kit for Sonic 1.4L. University of Iowa, Iowa City, IA 52241, USA DDMWorks Charge tube Silicone kit for Sonic 1.4L Custom BNR.
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