Data collected during 1996-99 in the Laboratory for Astrophysics, University of Florida
| # | Description
of
model |
Size, mm
(size of constituent particle for aggregate) |
Refractive index or material | Structure (packing factor for aggregate) | Number of frequencies and polarizations | Scattering
angle interval,
Degree |
Number
of orientations
or specific orientations |
Primary purpose of experiment | Where the data were used |
| 1. | 2 BK-7 spheres | 10 | 2.54+i0.017 | dumbbell | 1 x 2 | 1 | 1 | checking rigorous solution | Appl.Opt., Ap.J. |
| 2. | 8 acrylic
spheres
27 9 25 15 21 14 18 23 5 |
6.35 | 1.615+i0.008 | 2 x 2 x 2
cubic
3 x 3 x 3 cubic 3 x 3 square 5 x 5 square 3 x 5 rectang. 3 x 7 rectang. 1-4-9 pyramid (2) 3 x 3 rect.. 1-4-9-9 pyram. Chain |
10 x 4 | 1 | 1
2 2
2 |
checking rigorous solution | Appl.Opt. |
| 3. | 3 acrylic
spheres
9 14 |
9.5 | 1.615+i0.008 | chain
3 x 3 square 1-4-9 pyramid |
10 x (324° ) | 1 | 1 | checking rigorous solution | Appl.Opt. |
| 4. | 5 acrylic
spheres
14 11 12 15 18 9 9 14 |
6.35 | 1.615+i0.008 | chain
1-4-9 pyramid chain 2 x 6 rectang. 3 x 5 rectang.
3 x 3 square
|
10 x (324° ) | 1 | 1 | checking rigorous solution | Appl.Opt. |
| 5. | Aggregate
of
1500 spheres |
0.65 | 1.615+i0.03 | 0.1 | 85 x 2 | 1 | 24 | checking coherent scattering theory | Greenberg’s book, JGR paper |
| 6. | Aggregate
of
1500 spheres |
0.65 | 1.615+i0.03 | 0.2 | 85 x 4 | 5 | 36 | checking coherent scattering theory | Greenberg’s book, JGR paper |
| 7. | Aggregate
of
1500 cylinders |
2 x Æ 1.25 | 1.74+i0.005 | 0.1 | 85 x 4 | 5 | 36 | systematic study of aggregates | Greenberg’s
book, JGR paper
|
| 8. | Aggregate of 1500 spheres | 1.58 | 1.74+i0.005 | 0.1 | 85 x 4 | 5 | 12 | systematic
study of aggregates
|
JGR paper, PAM/IDA |
| 9. | Aggregate of 1500 spheres | 1.58 | 1.74+i0.005 | 0.45 | 22 x 4 | 1.5 | 30 | systematic study of aggregates | JGR paper
|
| 10. | Aggregate of 500 spheres | 1.58 | 1.74+i0.005 | 0.1 | 22 x 4 | 1.5 | 30 | systematic study of aggregates | JGR paper |
| 11.
|
Loosely wound ball of string | 1.25 | 1.74+i0.005 | 0.05 | 85 x 4 | 2 | 12 | systematic study of aggregates | Greenberg’s book, JGR paper |
| 12. | Frizzy string aggregate | 150 x Æ 1.25 | 1.74+i0.005 | 0.05 | 85 x 4 | 5 | 12 | systematic study of aggregates | |
| 13. | Aggregate of 43 spheres | 19.0 | 1.74+i0.005 | 0.1 | 22 x 4 | 1.5 | 30 | systematic study of aggregates | JGR paper |
| 14. | Aggregate of 37 spheres | 19.0 | 1.74+i0.005 | 0.55 | 22 x 4 | 1.5 | 30 | systematic study of aggregates | JGR paper |
| 15. | Aggregate of 3000 cylinders embedded in a matrix of organic refractory material | 2 x Æ 1.25 | 1.74+i0.005
(cylinders) 1.7+i0.05 (matrix) |
~ 0.9 | 85 x 4 | 5. | 19 | analog material for cometary particles | JGR paper |
| 16. | Aggregates of 88 round particles of organic refractory material | ~ 4 | 1.7 + i0.2 | ~ 0.2 | 85 x 4 | 1. | 24
and forward scattering |
analog material for Titan aerosol | J.Tomas-Osip’s thesis, JGR paper, PAM/IDA |
| 17. | BK-7 sphere | 10 | 2.54+i0.017 | 85 x 4 | 1. | calibration | |||
| 18. | BK-7 sphere | 10 | 2.54+i0.017 | 10 x 4 | 1. | phase,
forward scattering |
Greenberg’s book, Mishchenko’s book | ||
| 19. | BK-7 sphere | 6 | 2.54+i0.017 | 8 x 2 | 0.1 | refractive index check | T.Waldermasson’s thesis | ||
| 20. | Sphere | 15
10 8 51 |
steel | 8 x 2 | 0.1 | refractive index check | T.Waldermasson’s thesis | ||
| 21. | Acrylic cylinders embedded in foam matrix (Bird’s Nest) | 4.9 x Æ
4.9 9.6 x Æ
4.9 19. x Æ
4.9
|
1.615+i0.008
(cylinders)
|
simulation of cometary grains | |||||
| 22. | Cube | 101.6
25.4 22.25 |
1.615+i0.008 | 8 x 2 | 0.1 | 18
3 3 |
checking diffraction theory | T.Waldermasson’s thesis | |
| 23. | Cube | 101.6
25.4 |
aluminum | 8 x 2 | 0.1 | 8
6 |
checking diffraction theory | T.Waldermasson’s thesis | |
| 24. | Square rod | 22.23 | 1.615+i0.008 | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 25. | Square rod | 25.4
6.35 |
1.7+i0.005 | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 26. | Square rod | 6.35 | delrin | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 27. | Square rod | 25.4 | aluminum | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 28. | Square rod | 9.53 | steel | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 29. | Cube | 101.6
25.4 22.23 |
1615.+i0.008 | covered by aluminum on one side | 8 x 2 | 0.1 | 6 | checking diffraction theory | T.Waldermasson’s thesis |
| 30. | Rod | 22.23 | 1615.+i0.008 | one side covered by aluminum | 8 x 2 | 0.1 | 6 | checking diffraction theory | T.Waldermasson’s thesis |
| 31. | Plate | 101.6 | aluminum | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 32. | Plate | 101.6 | aluminum | covered by absorber | 8 x 2 | 0.1 | 3 | studying absorber properties | T.Waldermasson’s thesis |
| 33. | Screen with a squared hole | 101.6
51 (hole) |
aluminum | 8 x 2 | 0.1 | 3 | checking diffraction theory | T.Waldermasson’s thesis | |
| 34. | Screen with a squared hole | 101.6 (hole) | aluminum | hole filled with absorber | 8 x 2 | 0.1 | 1 | studying absorber properties | T.Waldermasson’s thesis |
| 35. | Screen with a squared hole | 101.6 (hole) | aluminum | hole filled
with
acrylic cube |
8 x 2 | 0.1 | 9 | checking diffraction theory | T.Waldermasson’s thesis |
| 36. | Screen shifted out of beam | simulating half-plane | aluminum | 8 x 2 | 0.1 | 2 | checking diffraction theory | T.Waldermasson’s thesis | |
| 37. | Cube | 38.1 | 1.603+i0.003 | 85 x 2 | 2 | 126 and forward scattering | asteroid dust particles | COSPAR,1996 | |
| 38. | Tetrahedron | 83 | 1.605+i0.001 | 8 x 4 | 0.1 | 8 (one face parallel to scattering plane) | asteroid dust particles | COSPAR, 1996 | |
| 39. | Acrylic sphere with metal inclusion | 60 | 1.605+i0.01
metal |
8 x 2 | 0.1 | inclusion aligned || and ^ to k vector | checking Fuller’s theory | ||
| 40. | Acrylic sphere with large metal inclusion | 40 | 1.605+i0.01
metal |
8 x 4 | 0.1 | inclusion aligned || and ^ to k vector | checking Fuller’s theory | ||