PM-7 Operating Manua.. - Voss Associates

Introduction
Overview
If the PM-7 is shipped in a vertical position:
Move the PM-7 with a heavy-duty hand truck (dolly) and strapping.
1. Installation of the Foot Detector
Pull out all the packing material around the lead shielding. Connect the
foot scintillator to its coaxial cable. Place the foot scintillator flat on the
bottom rectangular piece of lead, aligning the scintillator's coaxial
connector with the coaxial cable entry hole. Place the ramp on the
monitor.
2. Installation of the Side Detectors (#4 and #5 bottom, #2 and #3 top)
and their Lead Shielding
The side scintillators will be located behind the large, flat panels that are
between the beveled edges of the PM-7 columns. After they are
unlocked, the panels are removed by rotating the top edge away from
the column and raising the bottom off of two locating pins.
a. Lead Installation
The side assembly requires three sizes of lead:
• Long, slender pieces
• Long slender pieces with notches
• Pieces with four mounting holes.
The long, slender pieces of lead are to be mounted at the sides of the
detector bays. Complete the installation of lead shielding in one
side's lower bay before starting the upper bay.
Place the notched edge of the lead shield so that in coincides with
the notch that has the detector cable installed in it, notch pointing
outward.
The scintillator back is shielded with two of the large plates that
have holes drilled in them. Place the first one at the bottom of the
bay, between the side pieces of lead, and so the holes line up with
threaded inserts in the frame. Secure the three pieces of lead with
two of the angle brackets before stacking the second plate with holes
on top of the first. The angle brackets (16 in total) and mounting
screws (1/4-20 x 1-1/4” 1 long flatter supplied in a separate box.
1 1-1/4” is equal to 31.75 mm
Thermo Fisher Scientific
PM -7 Manager User’s Guide_1-3_