66
3.
WAVELENGTH OF THE ELECTRON
Precautiom : The anode  must be grounded.
Keep away from the cathode C at all times as the high potentials are exceedingly dangerous.
Be Careful of the foil material; it is extremely fragile.
_
T/ze Experiment: Obtain rings of constant radii.
Use a gold
foil.
-
,
From equation 3—13 and the constants immediately following
…
it, measure the wave-length of the electrons.
_
From equations 3—6 and 2—12, compute the de Broglie wavelength and compare
With the measured value.
,
'
REFERENCES
1». C. ]. Davisson, Bell System Tech. _Îr., 8, 217 (1929).
i
2. L. de Broglie, Phil. Mag., 47, 446 (1924).
3. DaviSson and Germer, Phys. Rev., 30, 705 (1927); Proc. Nat. Acad.
f Ï ÿ: ‘ ;
Sci., 14, 317, 619 (1927); ]r. Frank. Inst., 205, 597 (1928).
4. G. P. Thomson, Proc. Roy. Soc., 119, 651
5. Schrôdinger, Phys. Rev., 28, 1049 (1926).
6. W. Heisenberg, Zeits. f. Physik, 43, 172 (1927).
,
7. T. H. Johnson, Phys. Rev., 37, 847 (1931).
-
I. Esterrann and 0. Stern, Zeits. f. Physik, 61, 95 (1930).
8. A. ].Dempster,Phys. Rev., 34, 1493 (1929).
,
9._ Finch and Quarrell, Proc. Phys. Soc., 46, 148 (1934).
L. H. Germer, Rev. Sci. Inst., 6,— 138 (1935).
Morgan and Smith, Rev. Sci. Inst., 6, 316(1935).
‘
_
‘
_
.
GENERAL REFERENCES .
-
,
:
K. Dârrow, Béll System Tech. Jr., s, 391 (1929).
'
B.—+R.W. G. Wycko, T/ze Structure of Crystals, Chem. Cat. Co., '
_
,
New York(1931).
'
’
C.—A. Sommerfeld, Wave Mechanics, Methuen & Co., Ltd. (1930).
071 Dmction, Methue & Co., Ltd. (1936). '
3.
WAVELENGTH OF THE ELECTRON
Precautiom : The anode  must be grounded.
Keep away from the cathode C at all times as the high potentials are exceedingly dangerous.
Be Careful of the foil material; it is extremely fragile.
_
T/ze Experiment: Obtain rings of constant radii.
Use a gold
foil.
-
,
From equation 3—13 and the constants immediately following
…
it, measure the wave-length of the electrons.
_
From equations 3—6 and 2—12, compute the de Broglie wavelength and compare
With the measured value.
,
'
REFERENCES
1». C. ]. Davisson, Bell System Tech. _Îr., 8, 217 (1929).
i
2. L. de Broglie, Phil. Mag., 47, 446 (1924).
3. DaviSson and Germer, Phys. Rev., 30, 705 (1927); Proc. Nat. Acad.
f Ï ÿ: ‘ ;
Sci., 14, 317, 619 (1927); ]r. Frank. Inst., 205, 597 (1928).
4. G. P. Thomson, Proc. Roy. Soc., 119, 651
5. Schrôdinger, Phys. Rev., 28, 1049 (1926).
6. W. Heisenberg, Zeits. f. Physik, 43, 172 (1927).
,
7. T. H. Johnson, Phys. Rev., 37, 847 (1931).
-
I. Esterrann and 0. Stern, Zeits. f. Physik, 61, 95 (1930).
8. A. ].Dempster,Phys. Rev., 34, 1493 (1929).
,
9._ Finch and Quarrell, Proc. Phys. Soc., 46, 148 (1934).
L. H. Germer, Rev. Sci. Inst., 6,— 138 (1935).
Morgan and Smith, Rev. Sci. Inst., 6, 316(1935).
‘
_
‘
_
.
GENERAL REFERENCES .
-
,
:
K. Dârrow, Béll System Tech. Jr., s, 391 (1929).
'
B.—+R.W. G. Wycko, T/ze Structure of Crystals, Chem. Cat. Co., '
_
,
New York(1931).
'
’
C.—A. Sommerfeld, Wave Mechanics, Methuen & Co., Ltd. (1930).
071 Dmction, Methue & Co., Ltd. (1936). '