OLIVER HAYDEN,MANFRED RUEHRIG,FRANK SAUER,REINER FRANZ SCHULZ,SANDRO FRANCESCO TEDDE
申请号：
US13927633
公开号：
US20130343516A1
申请日:
2013.06.26
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A method and an apparatus for filtering radio-frequency electromagnetic beams, in particular x-rays, include a fluid container containing a ferrofluid which at least partially absorbs the electromagnetic beams. A distribution of the ferrofluid within the fluid container can be varied by using an applied magnetic gradient field. An irradiation apparatus and a device for irradiating an object are also provided.
