Sidney H. Liebson (b. 1920) received his Ph.D. from the University of Maryland in 1947. His thesis was on the discharge mechanism of Geiger Mueller counters. Liebson received a US Navy award for developing the first equipment used to identify enemy radar. 1920 (MCMXX) was a leap year starting on Thursday (link will take you to calendar) // Events January January 7 - Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ... The University of Maryland, College Park (also known as UM, UMD, or UMCP) is a public university located in College Park, Maryland, just outside Washington, D.C., USA. As the flagship institution of the University System of Maryland, the university is most often referred to as the University of Maryland... 1947 (MCMXLVII) was a common year starting on Wednesday (the link is to a full 1947 calendar). ... Modern geiger counter. ... The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such...

Liebson participated in atomic bomb testing in the Pacific, developing radiation detectors that were used to measure bomb characteristics. In a significant test, his detectors validated the feasibility of making the hydrogen bomb. At a time when electronics had not been able to make measurements with nanosecond accuracy, he developed several techniques to accomplish this accuracy for measuring organic fluorescence decay times and organic scintillation pulse widths by indirect means. His invention of the halogen counter occurred while he was working on his thesis. The mushroom cloud of the atomic bombing of Nagasaki, Japan, 1945, rose some 18 km (11 mi) above the epicenter. ... Radiation has a variety of different meanings. ... A detector is a device that detects or measures some phenomenon or stimulus, and produces some signal in response. ... The Massive Ordnance Air Blast (MOAB) bomb, produced in the United States. ... The mushroom cloud of the atomic bombing of Nagasaki, Japan, in 1945 lifted nuclear fallout some 18 km (60,000 feet) above the epicenter. ... The field of electronics is the study and use of systems that operate by controlling the flow of electrons (or other charge carriers) in devices such as thermionic valves and semiconductors. ... Nano is a noun Name for an Apple Brand Ipod available in 2GB and 4GB memory sizes whose purpose is for storing and playing music. ... Look up second in Wiktionary, the free dictionary. ... In science, engineering, industry and statistics, accuracy is the degree of conformity of a measured or calculated quantity to its actual, nominal, or some other reference, value. ... An organic compound is any member of a large class of chemical compounds whose molecules contain carbon, with the exception of carbides, carbonates, carbon oxides and gases containing carbon. ... Fluorescence induced by exposure to ultraviolet light in vials containing various sized Cadmium selenide (CdSe) quantum dots. ... The term Scintillation has several different meanings, including: Atmospheric induced Scintillation effects which influence astronomical observations. ... In medicine, a persons pulse is the throbbing of their arteries as an effect of the heart beat. ... The halogens are a chemical series. ...