Extra Exam Sol - gamma 1.4MeV for rate emission source The...

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Q 1 a) b) V cm s V cm s cm d v V v v d V E e e e sat sat 278 1 / 10 6 . 3 / 10 2 4 7 min max × = = = = = µ % 51 . 0 186 94 . 0 ) ( 94 . 0 ) ( 883237 ) 10 8 . 0 ( ) 10 186 )( 96 . 2 )( 08 . 0 ( 2.35 WHM 0 2.35 FWHM FWHM FWHM FWHM 2 2 3 3 2 2 E 2 2 E 2 X 2 D 2 T = = = = × + × = + + = + + = keV keV E E FWHM R keV E FWHM eV eV eV eV F FwE T T
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Q 2 S photons MeV MeV photons = = = 19418 511 . 0 38000 photons light of # ( ) ( ) e not visibl is flash the 10 4 37 . 4 5 4 15 . 0 19418 4 19418 eye striking photons light of # 4 %) 100 ( 4 2 2 2 2 < × = = = = = photons cm cm photons d r photons S N N S pupil ip π ε
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Q 3 a) b) steradians a d d 0717 . 0 ) 2 / 54 . 2 3 ( 25 25 1 2 1 2 2 2 2 2 = × + = + = π decay s decays decay / 68 . 0 / 10 7 . 3 10 2 / 68 . 0 Ci 2 rate emission A S : rays -
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Unformatted text preview: gamma 1.4MeV for rate emission source The 10 6 = = = = s S / 50320 = rays gamma s s = 6 min 2 10 038 . 6 / 50320 60 2 S : minutes 2 In events events N 63 3965 3965 4 0717 . 115 . 10 6.38 4 S N 6 ip = = = =...
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Extra Exam Sol - gamma 1.4MeV for rate emission source The...

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