TABLE 1. CONDENSED INSTRUMENT SETUP PROCEDURES
STEP 1
OPERATIONAL
CHECK WITH
PROBE
AC-3 & RASP-1
SPA-1
8-62-V
HP-210
HP-177C
&
HP-270
SET
Cal.
SW.
to
STEP 2
Cal.
Factor
to
Cal.
cpm
Gross
1.00
_
Gross
1.00
_
at
_
at
900 v.
value
on
IN
Cal.
label
epm
Cal.
label
value
All
legends
off
on
Part I
SP A-2
PartII
Part Il
Gross
PHA
IN
Cal.
label
value
STEP 5
Thresh,
to
Turn
Legend
label
IN
STEP 4
SET
PHA-Gross
Switch
to
IN
value
STEP 3
SET
1.00
2.50
Window
to
1.00
STEP 6
SET
HV
at Cal,
label
value
900 v.
For max.
spkr.
noise
Using Source
Hot or Med 241am
239py
90sr-y
8p Ci, 187Cs check
1.00
_
_
Source
epm
+20%
Source
epm
+20%
=5,000
uR/h
Hot 241Am
_
source at contact
Gross
PRS-1
Reads
source at contact
with beta shield
closed
331,000 dpm 241Am
D.P.2
ON
STEP 7
8, Ci, 1387Cs check
source 3-3/4" from
xtal housing side