Hardness Assurance Testing for Proton Direct Ionization Effects

Radiation Hardness Assurance for Space Systems

1.0 Introduction ........................................................................................................................................ 2 2.0 Radiation Hardness Assurance Overview .......................................................................................... 2 3.0 Define the Space Radiation Environment ..................................................................

Testing and Hardness Assurance Guidelines for Single Event Transients (SETs) in Linear Devices

Radiation Hardness Assurance for the JEM-EUSO Space Mission

This analysis documents the process and results of reliability determination of the PhotoMultiplier Tube (PMT) components of the JEM-EUSO telescope under the different radiation sources, UV radiation, Total Ionizing Doses (TIDs), and Single Event Transients. In terms of UV Ionization, the transmittance of the glass of the PMTs during the 5-year duration of the mission is greater than 99.98%, th...

Use of a novel two‐dimensional ionization chamber array for pencil beam scanning proton therapy beam quality assurance

The need to accurately and efficiently verify both output and dose profiles creates significant challenges in quality assurance of pencil beam scanning (PBS) proton delivery. A system for PBS QA has been developed that combines a new two-dimensional ionization chamber array in a waterproof housing that is scanned in a water phantom. The MatriXX PT has the same detector array arrangement as the ...

Testing the ECPSSR theory and its modifications with ratios of antiproton-to-proton ionization cross sections

While fits to 90% of all ever measured K-shell ionization cross sections by protons are on the average within 10% of the ECPSSR [W. Brandt, G. Lapicki, Phys. Rev. A 23 (1981) 1717], this theory systematically overestimates the remaining 10% of all data (comprised mainly of the measurements on heavy target elements) in the slow collision regime of proton velocities less than 0.1 of the orbital v...