Olympus DELTA 50 - Page 21

Table 2 Radiation profile
a
— Brass probe head
b
a. Table revision D, January 2013.
b. Brass probe head for DELTA models sold in Japan, and 50 kV models sold in Canada.
Model: DELTA Series Date: Oct. 2012 and Jan. 2013
Survey instrument Ludlum Model 3
44-7 probe
Ludlum Model 2241
44-172 probe
Performed
by:
F. Cook
R. Nasella
Validated by: M. L. Tremblay
Probe head: Brass alloy
Measured dose rate in µSv/h
c
— Secondary radiation (scatter)
c. To convert measurements to mR/h, divide results by 10.
Mode(s) Substrate Voltage (kV) Amperage
(µA)
Filter Trigger — T Close — F 5 cm — F1 10 cm—F2 30 cm (calculated)
Probe head
only
d
d. Probe head only = No shield in place.
Probe shield
e
e. Probe shield = Standard probe shield in place.
Probe head
only
Probe shield Probe head
only
Probe shield Probe head
only
Probe shield Probe head
only
Probe shield
Alloy Plus, Mining, Mining
Plus, GeoChem 1, 3-Beam
Soil 2, HalFree 1, RoHS 1
(plastic)
316 stainless 40 100 Aluminum
BK
f
f. BK = Background reading (< 1 μSv/h).
BK BK BK BK BK BK BK BK BK
Al (319 AA) BK BK 5 BK BK BK BK BK BK BK
EC 680K 50 7 1500 950 700 370 400 160 26 14
Soil (SiO
2
) 20 4 850 300 500 280 200 110 19 10
RoHS 1, 4-Beam RoHS 1
(plastic), RoHS 2, 4-Beam
RoHS 2 (alloy)
PVC-Blank 50 80 Copper 25 5 650 400 600 200 120 60 22 7
EC 680K 60 9 1500 1000 1500 1000 750 200 56 37
71X SR2 (solder) BK BK BK BK BK BK BK BK BK BK
Al (319 AA) 1 BK 25 15 10 10 6 5 BK BK
Alloy, Mining 316 stainless 35 100 Aluminum BK BK BK BK BK BK BK BK BK BK
Soil (SiO
2
) BKBKBKBKBKBKBKBKBKBK
Alloy Plus3316 stainless 8 200OpenBKBKBKBKBKBKBKBKBKBK
Al (319 AA) BK BK 4 BK BK BK BK BK BK BK
Alloy Plus 2 316 stainless 13 200 Open BK BK BK BK BK BK BK BK BK BK
Al (319 AA) BK BK 4 BK BK BK BK BK BK BK
Alloy 2 316 stainless 15 200 Iron BK BK BK BK BK BK BK BK BK BK
Al (319 AA) BKBKBKBKBKBKBKBKBKBK
3-Beam Soil 1 Soil (SiO
2
) 50 80 Copper 70 7 1000 500 750 350 300 50 28 13
50 # 60 # Copper 30 5 750 370 550 500 170 110 21 19
3-Beam Soil 1 Soil (SiO
2
) 40 100 Copper BK BK BK BK BK BK BK BK BK BK
RoHS 2 (alloy) 316 stainless 40 100 Copper BK BK BK BK BK BK BK BK BK BK
Al (319 AA) BKBKBKBKBKBKBKBKBKBK
Geochem 2, Mining Plus 2 Soil (SiO
2
) 10 200 Open BK BK BK BK BK BK BK BK BK BK
Mining Plus Soil (SiO
2
) 50 80 Copper 100 10 1750 750 750 350 300 28 13
50 # 15 # Copper 15 4 300 170 160 100 80 40 6 4
3-Beam Soil 3 Soil (SiO
2
)15200Thin
aluminum
BK BK BK BK BK BK BK BK BK BK
Lead271X SR2 (solder) 18200AluminumBKBKBKBKBKBKBKBKBKBK
Lead171X SR2 (solder) 25100AluminumBKBKBKBKBKBKBKBKBKBK
HalFree 2 EC 680K 10 200 Open BK BK 3 BK 1 BK BK BK BK BK
HalFree 2 EC 680K 12 200 Open BK BK 3 BK 1 BK BK BK BK BK