The Firing Line Forums

Go Back   The Firing Line Forums > Hogan's Alley > Tactics and Training

Reply
 
Thread Tools
Old July 4, 2006, 04:21 PM   #26
skeeter1
Senior Member
 
Join Date: April 11, 2006
Location: Northeast Ohio
Posts: 3,403
+tshadow6. I roll my own for the range or for fun on my friend's farm, .38 and .357, but when it comes to rounds for SD, I'll take factory-loaded Winchester Silvertips every day.
skeeter1 is offline  
Old July 4, 2006, 10:28 PM   #27
JohnKSa
Staff
 
Join Date: February 12, 2001
Location: DFW Area
Posts: 18,570
"Exposure Level #1:
X-rays can easily penetrate paper and cloth but can not penetrate denser materials such as rubber, glass, wood, or metals (aluminum, steel, and lead). "
http://www.coe.uga.edu/mse/science/o...ys/x-rays.html
"To block stray radio waves emitted by the detector's circuitry, the FPD was encased in a thin aluminum skin, which is almost transparent to x rays but opaque to radio. "
http://www.aip.org/pt/vol-58/iss-6/p22.html

"A typical X-ray will penetrate through thin layers of aluminum,
and eventually be absorbed by the material."
http://www.madsci.org/posts/archives...3690.Ph.r.html

Quoting is hard since this is a pdf, but do a search on aluminum and find a very brief description on how aluminum is used to calibrate dental X-Rays by comparing it's known density on the images to other objects in the image.

http://www.sciencenews.org/pages/pdf...9/15319-15.pdf

"Calibration procedure of aluminum wedge by optical density gradient of its X-ray image "
http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Abstract

"Aluminum alloy wedges are used to standardize x-rays"

http://lsda.jsc.nasa.gov/scripts/har...ardware_id=777

"Aluminum FB (foreign bodies) can often be visualized on radiographs"

http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Abstract

"A plain abdominal X-ray [Figure - 1] was advised that showed a linear radio-opaque shadow lying transversely in the pelvis. On persistent questioning, he gave a history of introduction of a 5.5 cm long aluminium rod"

http://www.jpgmonline.com/article.as...;aulast=Bakshi


I think that these are sufficient to show that even standard procedure X-Rays can render aluminum visible.

However, I will concede that there are also many links indicating that locating aluminum on X-Rays can be difficult in some cases. I think that would be a much more accurate way of stating your premise since it should be abundantly clear that saying it's invisible is overstating the problem.
__________________
Did you know that there is a TEXAS State Rifle Association?
JohnKSa is offline  
Old July 23, 2006, 09:39 PM   #28
Jager1
Senior Member
 
Join Date: December 11, 2000
Location: Phoenix, Arizona
Posts: 420
Quote:
the infamous "Miami FBI" shoot out of 1989.
It was 1986.
Jager1 is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:55 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.06647 seconds with 8 queries