Gamma Detectors

part number 47-1532
m44-2 web
• scintillation (NaI)
• efficiency 7% for 125I; 10% for 57Co; 3% for 137Cs; 3% for 60Co
• range 20 keV–1.5MeV
• sensitivity 175 cpm/µR/hr
 
part number 47-1533
m44-3 web248
 
 • scintillation (NaI[Tl])
• efficiency 33.5% for 125I (based on 18% for 129I)
• sensitivity 675
cpm/µR/hr
part number 47-1540
M44-10-angled-Lft-trans
• scintillation (NaI)
• efficiency 4% for 125I; 20% for 57Co; 9% for 137Cs; 15% for 60Co
• sensitivity 900 cpm/µR/hr
part number 47-1541
m44-11
• scintillation (NaI)
• range 60 keV–2 MeV
• sensitivity 900 cpm/µR/hr
part number 47-1547
M44-17 d
• scintillation (NaI)
• efficiency 41% for 125I (based on efficiency for 129I of 22%)
• sensitivity 2500 cpm/µR/hr (125I)
part number 47-1104
m44-20 angle2
• scintillation (NaI)
• efficiency 29% for 125I
• sensitivity 2300 cpm/µR/hr (137Cs)
part number 47-1238
M44-62 b
• scintillation (NaI)
• range 50 keV–1.5 MeV
• sensitivity 49 cpm/µR/hr
• low-level, wide-energy gamma detection
part number 47-3543
m44-172
• scintillation (YSO)
• window 5 cm²
• sensitivity 40%–125I; 25%–129I; 8%–14C; 7%–55Fe,137Cs–2.5%
part number 47-3758
M44-183 right
• GM, energy-compensated
• sensitivity 0.17 cps/μSv/h (100 cpm/mR/hr)
• energy response ± 15% of true value
 
part number 47-1717
m133-2 left-angle2
• GM, energy compensated
• linear range with DTC:  0.1 mR/hr–1 R/hr
• sensitivity 1000 cpm/mR/hr
part number 47-2450
M33-2-1
• GM, energy compensated
• linear range with DTC:
0.1 mR/hr–1 R/hr
• sensitivity 1000 cpm/mR/hr
• waterproof, includes 30 m detector cable
part number 47-1674
m133-4 a
• GM, energy compensated
• linear range with DTC:
1 mR/hr–10 R/hr
• sensitivity 100 cpm/mR/hr
 
part number 47-2451
M133-4-1
• GM, energy compensated
• linear range with DTC:
1 mR/hr–10 R/hr
• waterproof, includes 30 m detector cable
• sensitivity 100 cpm/mR/hr
part number 47-1718
m133-6 angle
• GM, energy compensated
• linear range with DTC:
4 mR/hr–40 R/hr
• sensitivity 18 cpm/mR/hr
part number 47-2452
M133-6-1
• GM, energy compensated
• linear range with DTC:
4 mR/hr–40 R/hr
• sensitivity 18 cpm/mR/hr
• waterproof, includes 30 m detector cable
part number 47-1216
m133-2 right-angle
• GM, energy compensated
• linerar range with DTC:
25 mR/hr–100 R/hr
• sensitivity 4.2 cpm/mR/hr
• waterproof, includes 30 m detector cable
 
part number 47-2453
m133-2 right-angle
• GM, energy compensated
• range 25 mR/hr–100 R/hr
• sensitivity 4.2 cpm/mR/hr
• waterproof, includes 30 m detector cable
part number 47-1638
M203
• shielded well gamma sample counter head
•efficiency 65%–129I; 33%–137Cs
part number 47-1621
m243
• shielded well gamma sample counter head
efficiency 90%–99mTc; 33%–137Cs;
• used with pulse height analyzer system
 

Ludlum Measurements has a wide selection of detectors and detector accessories available to match with our instruments. 

Talk to your sales representative for more information and additional choices.