Once the diameter of the cold stop and its distance to the image plane are confirmed, the Gaussian parameters of the relay lens and the two-mirror system must satisfy these formulae, then the exit pupil will coincide with the cold stop.
In order to prove the efficiency of the derived formulae, (6 real) systems are solved. The diameter of the IR system is taken as 250 mm, the diameter of the cold stop is 5 mm, and the distance between the cold stop and the IR image plane is (20 mm.)
In regard to the surface ablating problem of the thermal shield, the control schemes of the system, including its simplified condition and the characteristics of one-dimensional point control is suggested here.
Dependence of the heat release on the composition of an iron-water thermal shield
Dependence of the density of radiation damage to the reactor vessel on the composition of the ferro-aqueous thermal shield
Reducing capture γ-radiation and radiative heat emission in a reactor vessel by blocking and boronizing the thermal shield
Gold plated nickel alloy sheets have been used as a thermal shield inside nacelle housings for various jet engines.
The imaging horn array collects the incoming signal via on-axis front-end optics and a Cassegrain telescope, with a cold stop in front of the array to terminate side-lobe structure at an edge taper of -20dB.
Zero-time points were determined by adding 3 ml of cold stop solution to 55,ul of incubation medium.
After centrifugation for 20 s, the erythrocyte pellet was washed twice with 1 ml ice-cold stop solution.
Extracellular 86 Rb was removed by washing the cells three times in ice-cold stop solution.
Following the 15 min 3H-2-DG glucose uptake assays, ice-cold stop solution containing 10 mM of 2-DG was added to terminate the reactions.