Banana-Doughnut with Shu–Huei II
This particular collection, entitled "Banana-Doughnut with Shu–Huei II," began on May 14th, 1999. It is enclosed within a red loose leaf binder and contains mostly original handwritten notes from Dahlen himself, though there are, in addition, certain sections which contain computer-generated graphs. It recounts Dahlen's further work with seismic ray theory, this time including notes from Shu–Huei Hung, who at the time was a Postdoctoral Research Associate at Princeton with Dahlen. A link to her current page can be found here. The banana-doughnut concept is crucial in seismology, as it describes the banana-doughnut shaped Fresnel Zone that is formed by a seismic ray. Fresnel Zones refer to the region of space around a signal where it can be most concentrated. In this piece, Dahlen's consideration of Shu–Huei's "ball" model is considered. This collection can be found at: Guyot Hall, Princeton, NJ, 08540. Back to Main Page
	Pages	Sheet Numbers
Wavefront Snapshots á la Ray Theory	1–12	1–10
Surface waves in Shu–Huei's model	13–35	1–4
Buried source	36–74	1–4, 1–8, 1–3
Kernels for P_diff	75–104	1–14, 1–15
P_diff – Following Seckler & Keller JASA, 31, 192–216 (1959)	105–116	1–10, 17
P_diff kernel – continued	117–129	1–13
On a question raised by Adam	130–132	1–3
Wavefront healing á la Guust – June 24, 1999	133–150	1–17
Ellipses	151–153	1–3
Notes on Guusts parabolic paper	154–173	1–8
Homogeneous mantle – as suggested by Brian Schlottman – 10/11/99	174–181	1–8
Where are the caustics?	182–196	1–15
Shu–Huei	197–205	1–9
Analytical solution for M2	206–229	1–4
More meanderings –	230–233	1–2
Tracing rays through Shu–Huei's ball	234–299	1–21, 1–3
On a question raised by Adam	300–302	1–3