ROBERT BLENNER MAY
Pilots at Atlantic Ave, Virginia Beach, VA
License number
Virginia A1219216
Issued Date
Jan 2017
Expiration Date
Jul 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
553 S Atlantic Ave, Virginia Beach, VA 23451
Professional information
Method For Determining Hydrogen Mobility As A Function Of Temperature In Superconducting Niobium Cavities
US Patent:
7340937, Mar 11, 2008
Filed:
Nov 9, 2005
Appl. No.:
11/270714
Inventors:
Robert May - Virginia Beach VA, US
Assignee:
Jefferson Science Associates LLC - Newport News VA
International Classification:
G01N 33/00
US Classification:
73 232
Abstract:
A method for determining the mobility of hydrogen as a function of temperature in superconducting niobium cavities comprising: 1) heating a cavity under test to remove free hydrogen; 2) introducing hydrogen-3 gas into the cavity; 3) cooling the cavity to allow absorption of hydrogen-3; and 4) measuring the amount of hydrogen-3 by: a) cooling the cavity to about 4° K while flowing a known and regulated amount of inert carrier gas such as argon or helium into the cavity; b) allowing the cavity to warm at a stable rate from 4° K to room temperature as it leaves the chamber; and c) directing the exit gas to an ion chamber radiation detector.