https://www.selleckchem.com/pr....oducts/glx351322.htm
Indirect dosimetry to calculate peak skin dose (PSD) is generally based on reference air kerma or kerma-area-product, with effects of table attenuation, inverse square law and backscatter factor applied. When the incident x-ray beam angle changes, these factors would change as well. The purpose of this study is to identify the impact of incident x-ray beam angle on the accuracy of indirect PSD calculation and develop a correction method. Monte Carlo simulation was conducted to assist analytical equation derivation and to validate the

https://www.repairmywindowsand....doors.co.uk/corby-bi
How to Repair a Bifold Door Top Pivot The top pivot can become loose and scrape along the floor. You can correct this by loosening the set screw of the top bracket a bit. The pivot pin on the top is a metal screw that is inserted into a plastic cap with a lipped end that stays within the track, above the door. You'll need a screwdriver and possibly a pair of pliers. Take off the pin at the bottom. Bifold doors are ideal to save space in a closet but they may begin to slide or scratch against the floor, or even