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LTQ Orbitrap XL Hardware Manual

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Vacuum System<br />

Pirani Gauge<br />

Fore<br />

Pump<br />

Turbopump TMH 071<br />

(TMP 2)<br />

Fore<br />

Pump<br />

<strong>LTQ</strong> <strong>XL</strong><br />

Functional Description<br />

Vacuum System<br />

Figure 1-15 shows a schematic overview of the vacuum system. The<br />

<strong>Orbitrap</strong> has the following vacuum compartments:<br />

• CLT compartment in the aluminum vacuum chamber (pumped<br />

by the same pump as the linear trap)<br />

• Vacuum chamber (pumped by a water-cooled 60 L/s – for N 2 –<br />

turbopump TMH 071, TMP 1, manufacturer: Pfeiffer)<br />

• Ultra high vacuum chamber (UHV chamber, pumped by a<br />

water-cooled 60 L/s turbopump TMH 071, TMP 2, manufacturer:<br />

Pfeiffer)<br />

• <strong>Orbitrap</strong> chamber (pumped by a 210 L/s – for N 2 – water-cooled<br />

turbopump TMU 262, TMP 3, manufacturer: Pfeiffer)<br />

The forepumps of the linear trap provide the forevacuum for the<br />

turbopumps.<br />

Figure 1-15. Schematical view of vacuum system (CLT compartment not shown) *<br />

* For an abridged version of the parts list, see Table 4-7 on page 4-3.<br />

Cold Ion Gauge<br />

UHV Chamber<br />

<strong>Orbitrap</strong><br />

Chamber<br />

Turbopump TMU 262<br />

(TMP 3)<br />

Vacuum Chamber<br />

Turbopump TMH 071<br />

(TMP 1)<br />

<strong>LTQ</strong> <strong>XL</strong><br />

Thermo Fisher Scientific <strong>LTQ</strong> <strong>Orbitrap</strong> <strong>XL</strong> <strong>Hardware</strong> <strong>Manual</strong> 1-19

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