Message boards : LHC@home Science : Questions regarding antimatter.
Message board moderation

To post messages, you must log in.

AuthorMessage
Simplex0

Send message
Joined: 26 Aug 05
Posts: 68
Credit: 545,660
RAC: 0
Message 20617 - Posted: 5 Oct 2008, 10:56:02 UTC

When you have trapped antiprotons.

1. How do you know how many antiprotons that are stored in the trap at a give time?

2. How do actually know that it is antiprotons that are in the trap an not electrons?

ID: 20617 · Report as offensive     Reply Quote
Profile JLDun
Avatar

Send message
Joined: 5 Jul 07
Posts: 21
Credit: 12,058
RAC: 0
Message 20769 - Posted: 15 Nov 2008, 5:41:15 UTC - in response to Message 20617.  


1. How do you know how many antiprotons that are stored in the trap at a give time?

There are two ways:
1. Measure the electrical charge. (Even \"static electricity\" occurs at a certain \'electrical charge level.\')
2. Measure the mass- weigh what you have.


2. How do actually know that it is antiprotons that are in the trap an not electrons?

Electrons have a certain mass. Anti-protons have a certain mass. For any given \'electrical charge level\', compare the expected mass to the actual mass...

ID: 20769 · Report as offensive     Reply Quote
Simplex0

Send message
Joined: 26 Aug 05
Posts: 68
Credit: 545,660
RAC: 0
Message 20771 - Posted: 15 Nov 2008, 11:09:52 UTC

Thank you JLDun.
ID: 20771 · Report as offensive     Reply Quote

Message boards : LHC@home Science : Questions regarding antimatter.


©2020 CERN