Fundamental Technologies

Cassini MIMI Pages

LEMMS Telescope Design

Presentation by E. Kirsch at MIMI team meeting, October 1994

Figures:

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5

Sr90 as calibration source

Sr90 -->Y90 + b-
Y90 -->Zr90 + b-

Emax = 500 keV
Emax = 2300 keV

Deflection of electrons

B = 650 G

e- = 0.458 MeV --> B R = 2750 G cm, R = 4.23 cm
e- = 1.12 MeV --> B R = 5186  G cm, R = 7.98 cm
e- = 1.59 MeV --> B R = 6801 G cm, R = 10.46 cm

When e- ~= 2.0 MeV reach detector A, they would not be detectable.

0.35 150 = 52 keV energy loss in A, the threshold is at 75 keV!

Return to Historical MIMI Memos and Notes main page.
Return to Cassini MIMI table of contents page.
Return to Fundamental Technologies Home Page.

Updated 6/12/08, T. Hunt-Ward
tizby@ftecs.com