File:Lead shielding.jpg

Original file (1,600 × 1,200 pixels, file size: 807 KB, MIME type: image/jpeg)

Summary

Description Lead bricks being used to shield a radioactive sample (Cs-137). Taken by L. Chang, 3-17-2004.
Date 17 February 2004 (according to Exif data)
Source Own work
Author Changlc

Licensing

Changlc, the copyright holder of this work, hereby publishes it under the following license:
Public domain This work has been released into the public domain by its author, Changlc. This applies worldwide.
In some countries this may not be legally possible; if so:
Changlc grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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author name string: Changlc
URL: https://commons.wikimedia.org/wiki/user:Changlc
Wikimedia username: Changlc

copyright status

copyrighted, dedicated to the public domain by copyright holder

copyright license

released into the public domain by the copyright holder

inception

17 February 2004

source of file

original creation by uploader

data size

826,036 byte

height

1,200 pixel

width

1,600 pixel

media type

image/jpeg

checksum

567dcf5e71763267bfc8bd7120d6b80eb5a58f4b

determination method or standard: SHA-1

exposure time

0.0884 second

f-number

2.8

focal length

5.88 millimetre

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Date/TimeThumbnailDimensionsUserComment
current23:16, 25 February 2006Thumbnail for version as of 23:16, 25 February 20061,600 × 1,200 (807 KB)ChanglcLead bricks being used to shield a radioactive sample. Taken by L. Chang, 3-17-2004. Category:Radioactivity Category:Lead

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allikas: https://en.wikipedia.org/wiki/File:Lead_shielding.jpg