| 释义 |
scintillator|ˈsɪntɪleɪtə(r)|
[f. scintillate v. + -or.]
1. A scintillating star.
1872Proctor Ess. Astron. xxi. 256 Capella is another notable scintillator.
2. Nucl. Physics.
a. A material that fluoresces when struck by a charged particle or high-energy photon.
1950Physical Rev. LXXVIII. 81/2 Terphenyl crystals..appear to be among the most durable of presently known organic scintillators. 1955Nucleonics Feb. 10/1 (heading) Gaseous scintillators. 1963B. Fozard Instrumentation Nuclear Reactors vi. 63 Even in crystalline or liquid scintillators of high transparency it is usual to surround the phosphor with a reflecting surface. 1971Nature 20 Aug. 574/2 Cosmic ray muons..were selected by a counter telescope consisting of one or two 2·5 cm diameter disks of plastic scintillator and a 58 cm diameter tank of liquid scintillator placed approximately 90 cm below. 1975Davis & Simpkins in Williams & Wilson Biologist's Guide to Princ. & Techniques Pract. Biochem. iv. 112 The supporting medium may be cut into small sections which are then immersed in a suitable scintillator solution.
b. = scintillation detector s.v. scintillation 3.
1952Ann. Rev. Nuclear Sci. I. 188 The increase in scintillator signal when the plate is grounded is a measure of the beam which travels more than once around the orbit before being lost. 1958Times 28 July 8/5 The radiation counters comprise two geiger counters and two scintillators, the geiger counters recording radiation within the satellite and the scintillators measuring exterior intensities. 1964J. A. Ransom Range Guide to Mines & Min. ii. 26 Anomaly maps were made originally by..flying airplanes over regions of suspected radioactivity with scintillators on long cables below the planes registering areas of abnormal gamma-ray count. 1977Kuwait Times 1 Nov. 9/5 (Advt.), On display: Diagnostic and therapeutic X-ray equipments. Surgical steel instruments. Scintillators. |