Fine Beam e/m System, He - MCP - Not Currently Available
Fine Beam e/m System, He - MCP - Not Currently Available
TEL-8481SYS3/CS (NOT CURRENTLY AVAILABLE)
The fine beam tube is used for investigating the deflection of cathode rays in a uniform magnetic field. Tube is in Helium. Manufactured by MCP Shanghai.
NOT CURRENTLY AVAILABLE
TEL-8481SYS3/CS
Objects
Deflection of electrons in a closed circular path inside a magnetic field
Determination of specific change of an electron e/m
Principles
The fine beam tube is used for investigating the deflection of cathode rays in a uniform
magnetic field produced by a pair of Helmholtz coils (TEL-8481500/C). In addition, it can also be used for quantitative determination of the specific charge of an electron e/m.
Located inside a glass bulb with a helium residual gas atmosphere is an electron gun, which consists of an indirectly heated oxide cathode, a Wehnelt cylinder and a perforated anode. The gas atoms are ionized along the path of the electrons and a narrow, well-defined, luminescent beam is produced. Incorporated measurement marks facilitate a parallax-free determination of the diameter of the circular path of the beam deflected in the magnetic field.
SYSTEM INCLUDES:
1 pc Fine beam tube, He with base - TEL-8481435/C
1 pc Pair of Helmholtz coils -TEL-8481500/C
1 pc DC power supply – TEL-U33000/C
( The multimeter and cables shown are not included in the system. )
