File 52-55 - 'Berechnungen bis 1938'

Contents of a substantial folder so inscribed. The material is very diverse, and not all in Frisch's hand; it includes notes on the literature, drafts for papers or reports, drawings of apparatus, calculations and results, ideas for experiments and techniques, etc.

Notes and sequences clipped together by Frisch have been preserved as such.

B.52: Dated sequences of notes, 1932-1937.
Includes:
'Ablenkung von Mol. Str. in mag. Feld'. 3 pp. sequence, kept with other notes on magnetron, B-recoil, etc., some dated October 1932 (during Frisch's period in Stern's laboratory at Hamburg).
Notes and draft for short talk on work of Stern's laboratory (on proton, and on diffraction anomalies). In English, possibly for talk at Birkbeck, or at Copenhagen. c.1933-34.
Sequence of notes, various dates September-October 1936, on 'Schrägheits-korrektur', neutrons, etc.
Miscellaneous notes, various dates January-February 1937
Miscellaneous bibliographical references, 1937.
All these items are in Frisch's original folder, which also bears notes and diagrams on the front cover.

B.53: Undated sequences of notes.
Includes:
'Isotopentrennung', 3 pp.
'Dirac, Quantenmechanik', 6 pp.
'Plattenelektrometer', 2 pp.
'Courant-Hilbert', 3 pp
'Schwankungen eines Zählers mit endlichen Auflösungsvermögen', 7 pp. notes, calculations, diagrams.
'Scattering of protons in hydrogen', 4 pp. draft not in Frisch's hand, but kept with notes and diagrams by him.
'Fokussierung des Cyclotrons', 8 pp. draft not in Frisch's hand, perhaps by H. Jehle.

B.54: Shorter notes by Frisch, titled but not dated, on various research ideas.

B.55: Undated and unidentified notes, diagrams, etc., almost all by Frisch, but includes some material in other hands.