내 응용에 맞는 HPGe 검출기 선택하기 - youngin.com

1 AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: 1 HPGe 1.. 2 2. HPGe .. 2 3. ? .. 4 4. : ? ? .. 4 5. ? .. 6 1) Compton Suppression System? .. 6 2) Compton Suppression System .. 6 3) Compton Suppression System .. 7 4) (E) .. 7 5) .. 8 6) , .. 8 6.. 10 1) .. 10 2) ? .. 11 3) Wrap-around ? .. 12 4) (Well) .. 12 7.. 13 1) .. 13 2) .. 13 3) .. 14 4) .. 15 5) Low Background .. 16 6) : .. 16 8.. 17 AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: 2 1.

2 , , activity . HPGe . , , . HPGe . HPGe , . 2. HPGe HPGe . HPGe (diode) . n- p- acceptor donor .. Lithium(Li) N+ P+ . Li Li Germanium(Ge) .. (disk) . (Coaxial) (Planar) . 1.

3 (n p ) . P- Li . ORTEC GEM . N- , ORTEC GMX . n- LO-AX . 2 . AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: HPGe 3 LO-AX p- , PROFILE . 600 m PROFILE GEM F 10 m PROFILE GEM FX . ( ) (capacitance) .. LO-AX . p GEM PROFILE FX p . P PROFILE series GEM.

4 N P . PROFILE-FX .. PROFILE-FX series GEM , . 1. P-type HPGe 2. N-type HPGe AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: ? 4 3. ? .. 4. : ? ? .. (Minimum Detectable Activity: MDA) . MDA . (E)R(E)B(E)~MDA(E) ( 1) MDA.

5 MDA . , MDA . R(E) B(E) , (E) .. MDA . , MDA . ? . MDA . AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: : ? ? 5 ? 1 ( ) ( ) . MDA . ?.

6 ( 3) MDA . MDA . , . ( ) .. ( 4) 5 . GMX , Am-241 Cs-137 .. 3. 4. P- AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: ? 6 (100keV ).. K-40 . 5. ?

7 1) Compton Suppression System? 5 .. (Compton Suppression System: CSS, 6) HPGe NaI(Tl) HPGe . HPGe NaI(Tl) . Cs-137 , C/P 5 . 2) Compton Suppression System active shield . active shield . 5. Cs-137 Am-241 18% 98% AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: ? 7 3) Compton Suppression System NaI(Tl) shield.

8 CSS . C/P CSS . 4) (E) 1 MDA . IEEE-325 . 25cm . 25cm .. 7 . 7. 6. ORTEC Compton Suppression System AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: ? 8 1 (E) . (E) , , . IEEE-325.

9 5) . 8 IEEE-325 . ( ) IEEE-325 . , ORTEC GEM Profile F ( FX) . Profile IEEE-325 . 6) , .. (E)X0eII = ( 2) I0 , I , , x .. (stopping power) 0 0 .. 9 P N . P 14mm.

10 8. 3 IEEE AN-OR-11001 HPGe 135-890 547 Homepage: :02-519-7476 | :02-544-2391 e-Mail: ? 9 150keV .. 150keV N (GMX) 100keV . P (GEM: ~600 m) N (GMX: ~ m) .. 60keV(Am-241) GMX GEM 1 Am-241 MDA . GEM Am-241 GMX . GMX Cs-137 661keV GMX GEM . GEM p/c GEM MDA . [ ] P N ~80keV-3 MeV P (GEM) ??