PM-7 Operating Manua.. - Voss Associates

. Scintillator Installation
Introduction
Overview
Install the scintillators column by column, being careful to note
their numbered locations. Each scintillator features a number on its
side that corresponds with the number on the detector. For example,
the #5 scintillator would be the bottom right side and corresponds
with #5 on the detector. The next section describes the assembly
procedures for installing lead shielding and scintillators.
Slide the bottom scintillator into its slot with the coaxial connector
on the same side as the coaxial cable. Hold the bottom scintillator
still. Slip a z-bracket, supplied separately (Part No.
610KZ081--01-360 REV AV1), around the back and bottom of the
top scintillator. The hollow portion of the bracket should be
pointing downwards. Place the top pointing and
bracket in the top bay area, such that the
scintillator's bottom edge is high enough to clear the
metal lip at the bottom of its bay. Lower the
scintillator until it rests on the bay ledge. The
z-bracket is held in place by the upper scintillator
and secures the lower detector. Attach the coaxial
cables to the scintillators and ensure that each cable's
service loop is tucked out of the way. Replace the
Lead scintillator access panels and secure the locks.
Angle
Bracket
Figure 1.4. Head Detector and Lead Assembly
Scintillator
Foam
3. Installation of the Head Scintillator (#1) and its
Lead Shielding
On the inside of the head scintillator area, you
should see a piece of foam with 2 brackets on its
sides. Loosen the brackets. Place the head scintillator
(#1) flat on the foam, orienting the detector coaxial
connector with the protruding cable. Install the
smallest pieces of lead to the bracket in the same way
that corresponding pieces are installed in the foot
scintillator pan.
Find the two shortest, slotted pieces of lead. Place
these along the longer side of the detector, slot facing
upwards. Put the four separately packaged corner
brackets on the four corners of the lead assembly.
Connect the scintillator's coaxial connector to the
cable. Place the last lead piece, which is the same size
as the larger pieces used in the columns except that it
Thermo Fisher Scientific
PM -7 Manager User’s Guide_1-5_