Demonstration of the photoelectric effect with a Geiger counter

1976 ◽  
Vol 44 (3) ◽  
pp. 305-306
Author(s):  
Harold Brower
Keyword(s):  
Photoelectric Effect ◽  
Geiger Counter

Methods for Testing Micro-Dose X-Ray Radiation

2012 ◽  
Vol 226-228 ◽  
pp. 1942-1946 ◽  
Author(s):  
Cai Xia Liu ◽  
Jin Huang ◽  
Wen Zheng
Keyword(s):  
Radiation Safety ◽  
Low Cost ◽  
Photoelectric Effect ◽  
Geiger Counter ◽  
Railway Stations ◽  
X Ray ◽  
Testing Method ◽  
Inspection Systems ◽  
Security Inspection

The X-ray security inspection systems are widely used in airports, customs, and railway stations now. Their radiation safety is related to the health of public. It is necessary to take radiation safety tests at least once a year. For their energy is usually in the level of keV, the radiation caused by photoelectric effect is the most important. According to the photoelectric effect of X-ray, the methods of testing Micro-dose X-ray radiation include radiography method, ionization testing method, scintillation testing method and semiconductor testing method. Radiography method and ionization testing method can be used to test the stronger X-ray radiation, while scintillation testing method and semiconductor testing method can be used to test the weaker. Geiger counter testing method is not proper to be used when taking the accurate test; however, because of its relative low cost, non-professional technicians can use it to test the Micro-dose X-ray radiation daily.

A Study of the Photoelectric Effect Caused by a Laser Beam Used in a Beam Bounce Technique in a C-AFM System

2008 ◽  
Author(s):  
Hung-Sung Lin ◽  
Mong-Sheng Wu
Keyword(s):  
Laser Beam ◽  
Failure Analysis ◽  
Atomic Force Microscope ◽  
Photoelectric Effect ◽  
Scanning Probe ◽  
Nanometer Scale ◽  
Electrical Characteristics ◽  
Atomic Force ◽  
Probe Microscope ◽  
Probe Head

Abstract The use of a scanning probe microscope (SPM), such as a conductive atomic force microscope (C-AFM) has been widely reported as a method of failure analysis in nanometer scale science and technology [1-6]. A beam bounce technique is usually used to enable the probe head to measure extremely small movements of the cantilever as it is moved across the surface of the sample. However, the laser beam used for a beam bounce also gives rise to the photoelectric effect while we are measuring the electrical characteristics of a device, such as a pn junction. In this paper, the photocurrent for a device caused by photon illumination was quantitatively evaluated. In addition, this paper also presents an example of an application of the C-AFM as a tool for the failure analysis of trap defects by taking advantage of the photoelectric effect.

Geiger Counter Tubes

1949 ◽  
Author(s):  
H. Friedman
Keyword(s):  
Geiger Counter

scholarly journals Attosecond intra-valence band dynamics and resonant-photoemission delays in W(110)

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. Heinrich ◽  
T. Saule ◽  
M. Högner ◽  
Y. Cui ◽  
V. S. Yakovlev ◽  
...  
Keyword(s):  
Valence Band ◽  
Photoelectron Spectroscopy ◽  
Electronic Band Structure ◽  
Photoelectric Effect ◽  
Final State ◽  
Electronic Band ◽  
Time Resolved ◽  
Resonant Photoemission ◽  
Pulse Trains ◽  
Electron Correlation Effects

AbstractTime-resolved photoelectron spectroscopy with attosecond precision provides new insights into the photoelectric effect and gives information about the timing of photoemission from different electronic states within the electronic band structure of solids. Electron transport, scattering phenomena and electron-electron correlation effects can be observed on attosecond time scales by timing photoemission from valence band states against that from core states. However, accessing intraband effects was so far particularly challenging due to the simultaneous requirements on energy, momentum and time resolution. Here we report on an experiment utilizing intracavity generated attosecond pulse trains to meet these demands at high flux and high photon energies to measure intraband delays between sp- and d-band states in the valence band photoemission from tungsten and investigate final-state effects in resonant photoemission.

Technical Data Concerning the Geiger Counter

Radiology ◽  
1936 ◽  
Vol 26 (6) ◽  
pp. 756-757
Author(s):  
Robert B. Taft
Keyword(s):  
Geiger Counter ◽  
Technical Data

Statistics of piezonuclear emissions: early results

2014 ◽  
Vol 28 (05) ◽  
pp. 1450036 ◽  
Author(s):  
G. Albertini ◽  
V. Calbucci ◽  
F. Cardone
Keyword(s):  
Proportional Counter ◽  
Geiger Counter ◽  
Early Results

Measurements of ionizing and nonionizing particles are performed during the rupture tests of steel rods having different diameter. A ZnS ( Ag ) alpha detector, a Geiger counter and a 3 He proportional counter for neutrons are used. From the distributions of the recorded intensity maxima, different particles emissions are suggested to occur in broken and nonbroken samples. A hint for the emission of neutrons at rupture is also obtained. Such neutron emissions are predicted in the framework of the piezonuclear theory.

Teaching the photoelectric effect inductively

2012 ◽  
Vol 48 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Andrzej Sokolowski
Keyword(s):  
Photoelectric Effect
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