File:Geiger counter in use.jpg

Original file ‎(1,331 × 1,032 pixels, file size: 677 KB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Wikipedia does not have a File page with this exact name.

Other reasons this message may be displayed:

If an image was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function.
Titles on Wikipedia are case sensitive except for the first character; please check alternative capitalizations and consider adding a redirect here to the correct title.
If the page has been deleted, check the deletion log, and see Why was the page I created deleted?

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:51, 25 February 2006		1,331 × 1,032 (677 KB)	Changlc	Using a geiger counter to measure radioactive emissions from a sample of Sodium 27. Taken by L. Chang, 3-1-2004.

The following file is a duplicate of this file (more details):

The following 3 pages use this file:

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	Hewlett-Packard Company
Camera model	HP PhotoSmart 315
Exposure time	73/2,500 sec (0.0292)
F Number	f/2.8
Date and time of data generation	15:40, 1 March 2004
Lens focal length	5.88 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	QuickTime 6.5.2
File change date and time	03:06, 24 December 2004
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	15:40, 1 March 2004
Image compression mode	3
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Subject distance	0.484 meters
Metering mode	Pattern
Flash	Flash did not fire
Color space	sRGB