DE7219353U - Device for the investigation of nuclear magnetic resonance - Google Patents

Description

PATENT LAWYERS

DR. PHIL. G. NICKEL · DR.-ING. J. THORNS

θ MONK IS

LANDWEHRSTR. 35 POST BOX 104

TEL. (ΟΘ II) 55 57 19

Miivrhen, May 19, 1972 Anwa1tsaktenz .: 29 - Gm. 1

THE OXFORD INSTRUMENT COMPANY LiMITEn, Osney Mead, Oxford 0X2 ODX, England

Device for the investigation of nuclear magnetic resonance.

The innovation concerns a device for the investigation of magnetic Nuclear resonance with a superconductor magnet.

Superconducting magnets are generally in use when magnetic High intensity fields are required that are homogeneous over a large area. This requirement must, for example When studying nuclear magnetic resonance are met, with a probe, which the required alternating electric field or oscillating field generated, in a magnetic field higher Intensity is arranged. A sample is introduced into the composite field created in this way and the resulting Field disturbances provide information about the core properties of the sample in question.

Facilities for studying nuclear magnetic resonance included hence a magnet with a superconducting excitation coil and a central bore in which a region of a homogeneous magnetic field. A nuclear magnetic resonance

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The probe is held in the hole of the magnet within the area of the homogeneous field and samples are so called in egg Area introduced that measurements can be carried out on it. In known devices of this type, both the probe and the samples only from one and the same 1.ride de.- Bore of the magnet to be introduced so that the The probe must be removed every time a new sample is introduced, after which the probe is brought back into place and the magnetic field must be tuned and adjusted in order to be able to generate the required, homogeneous area.

These operations are annoying and for this reason should be carried out the novelty solved the problem of a facility for investigation to train magnetic nuclear resonance so that the sample change is facilitated and simplified.

Starting from a device for the investigation of magnetic Nuclear resonance with a superconductor excitation coil Magnet, which has a bore in which an area with a substantially homogeneous magnetic field is located, as well as with a magneti see nuclear magnetic resonance probe, which in this area can be introduced, the task at hand will be according to the innovation solved in that the bore of the magnet is open at both ends, so that the nuclear magnetic resonance probe of the one and samples into the bore from the opposite side can be felt.

The hole in the magnet is perpendicular, which makes it a superconducting Miig in th iiornia I! is, so erv, eist it is ai.: Zwee Uiiiii Ii ig, the magnet so from / .ubi I den, that the bore is kept so short \ vi cd, ..ic this in the i I, nor promotion is compatible that a liece'ch homogeneous · ¹ , r Fe I dst; i rice from ce ie Ii e nd ec size is obtained. The magnet is on Fiilieti ir.oha ll.erl · in d the probe is from the bottom of the 'BoIiCUiIiI ₁ from -: i uge l'iili c t. The oliece FmIe ^ vv bore is therefore easily l'iir the exchange of specimens /, ugiiiij. "Ii Ch,

7 / MU 3 y Y 3 above 11.72

In the following, the innovation is illustrated by the description of a preferred one Spatial shape described in more detail with reference to the accompanying drawing, which shows a cross section through a iiaumiorm the innovation shows.

The drawing shows a magnet 1 with a superconducting excitation winding, which is surrounded by a cryostat in order to keep the magnet 1 at the necessary low temperatures. The cryostat contains a chamber 2 which is used to hold liquid helium and which directly surrounds the magnet 1. The chamber 2 is in turn surrounded by a vacuum chamber 3, which surrounds a further chamber h for receiving liquid nitrogen, and finally an outer vacuum chamber 5 is also provided. The magnet 1 and the associated cryostat are designed so that a central bore 6 is provided in the magnet i, which is at room temperature and which has an area 7 in its central section in which the magnetic field is homogeneous.

The entire arrangement of the magnet 1 and the associated cryostat is supported b of feet around the bore 6, both from below and above to make ^{τ οη} accessible. A nuclear magnetic resonance probe arrangement 9 is inserted into the bore 6 from below and is located in the region 7 thereof, which has the homogeneous magnetic field. A sample on which investigations are to be carried out is introduced into the bore 6 from above and brought into the area 7 without the nuclear magnetic resonance probe arrangement 9 having to be influenced, rebuilt or expanded in any way. There is also no need for any measures to be taken on the probe arrangement 9 if the samples are to be exchanged, since both insertion and removal are carried out from the upper hole.

721935330.11.72

Claims (2)

Protection claims 1. Establishment of nuclear magnetic resonance investigation, with a magnet having a superconductor excitation coil, which eir.e bore in which there is an area with a substantially homogeneous magnetic field and with a magnetic field Nuclear magnetic resonance probe, which can be inserted into this area, characterized in that the bore (6) of the magnet (l) is open at both ends, so that the nuclear magnetic resonance probe (9) can be introduced into the bore from one side and samples from the opposite side. 2. Device according to Ansprucn i, characterized in that the magnet (l) is attached to feet (b) in such a way that its bore (6) is vertical and that the nuclear magnetic resonance probe (9) can be inserted into the bore from below and samples from above. 721935330.11.72