anticoincidence造句

• Like gas counters, liquid scintillation counters require shielding and anticoincidence counters.
• To reduce gamma rays, an anticoincidence shield can be used " see Compton suppression ".
• An anticoincidence detector is the instrument's first line of defense, screening out the more abundant background of cosmic rays.
• The SPI "'ACS "'( AntiCoincidence Shield ) consists of a mask shield and a detector shield.
• An anticoincidence shield of some kind is needed so that charged particles entering the device from outside are not confused with electron-positron pairs generated in the conversion foils.
• Now I know you know this refers to gas proportional counters and liquid scintillation counters, but just before this, at the end of the third paragraph, you mentioned anticoincidence counters.
• In addition, anticoincidence detectors are used; these record events outside the counter, and any event recorded simultaneously both inside and outside the counter is regarded as an extraneous event and ignored.
• A typical configuration might have a NaI scintillator almost completely surrounded by a thick CsI anticoincidence shield, with a hole or holes to allow the desired gamma rays to enter from the cosmic source under study.
• E-ASTROGAM is made of 56 Silicon planes, about 1 m ^ 2 each, which record Compton interactions and pair production events induced by cosmic photons, by an anticoincidence detector and by a calorimeter.
• Once both the electron and positron were created, if one of these particles was still moving down throughout the telescope and a signal from the anticoincidence scintillator wasn t fired, the particle was imaged and its energy level recorded.