Patent · US Expired

Test head producing different frequencies for endor-triple experiments

US4315230A · kind A · utility

1Cited by

1References

6Claims

0Family size

Assignee

Bruker Analytische Messtechnik GmbH · DE

Inventors

Reinhard Biehl · Karlsruhe, DE
Dieter Schmalbein · Bad Herrenalb, DE

Key dates

Filing date	Apr 22, 1980
Grant date	Feb 9, 1982
Priority date	—
Expiry date	Apr 22, 2000

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/345
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A test head for ENDOR-triple experiments comprising a cylindrical cavity resonator provided with means for exciting the TM.sub.110 mode and a spiral arranged in concentric relation to the cavity axis and connected to the inner conductor of a coaxial line. The walls of the cavity resonator (5) are provided at two diametrically opposite points with projections (4) projecting into the interior of the cavity resonator, consisting preferably of a poorly conductive material and extending over the full height of the cavity resonator. The projections are formed by tubes (14) recessed into the walls of the cavity resonator and enclosing sections (20, 21) of the turns of a modulation coil (19) intended for modulating a D.C. magnetic field (B.sub.0) existing in the cavity resonator in vertical relation to the plane comprising the projections.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.