Similar tests were performed on detectors after exposure to proton beams with doses (1.8×101524GeVprotons/cm2) equivalent to those expected after 10 years at the innermost layers of the ATLAS experiment at the large hadron collider (LHC).
With recent improvements in detector technology, automated exposure control techniques and iterative image reconstruction, a further substantial decrease in radiation exposure of 80% to a level around 0.2 mSv is possible without impairing image quality [ 56].
In order to obtain a preliminary estimate of the product (detector area) × (exposure time) needed to optimize the muon detector, we performed a simplified Monte Carlo calculation.
First, the dark-field radiograph, which is the zero exposure detector intensity level, is subtracted from the radiograph.
Monitoring and maintenance include a series of tests that can be performed by different assigned people; they are directed to x-ray generation, exposure, detector performance, post-processing and viewing at a workstation.
Other wearables or connected objects — like noise and sound monitors, thermometers, pollution sensors, sun exposure detectors, etc. — would contribute to an analysis of the person's current mental or physical state.
Problems of specimen distortion under the beam are mitigated by the use of a fast-readout direct-exposure detector [5], allowing images to be read out rapidly and shifted into register [6].
Development of physical protection (including facial masks and respirators) or environmental detectors for documenting exposure are not within the purview of this announcement.
